Mohammed Alenazy - Academia.edu (original) (raw)

Papers by Mohammed Alenazy

Research paper thumbnail of Oral health knowledge, attitude and practices among health professionals in King Fahad Medical City, Riyadh

DOAJ (DOAJ: Directory of Open Access Journals), 2012

Research paper thumbnail of Clinical considerations of nanobiomaterials in endodontics: A systematic review

Saudi Endodontic journal, 2018

Introduction: Clinical dentistry and primary oral care continue to experience significant improve... more Introduction: Clinical dentistry and primary oral care continue to experience significant improvements
in quality at different levels of dentistry. These changes and improvements are of great benefit to both
patients and clinicians because of significant achievements and advances in the physical, chemical, and
biological sciences. Nanotechnology and its varied products are eloquent examples of these revolutionary
trajectories in scientific discoveries and endeavors. Scientific revolution of nanotechnology has afforded
the dental profession with a wealth of novel nanobiomaterials, templates for dental tissues regeneration,
oral fluid nanodiagnostics, and the potential ability to use nanoparticles to replace lost dental hard tissues.
Materials and Methods: A manual and systematic electronic search was conducted using the PubMed
database. Several keywords were used: “nanocharacterization” “nanoclinical applications” “endodontics”
“nanodentistry” “nanotechnology (263) (278) papers were excluded because they were duplicated papers,”
“nanoparticles” and “regeneration.” Relevant articles published up to 2016 in the English language were
retrieved.
Results: Initial electronic and manual searches identified (571) studies. Preliminary analysis was performed
on a total of (332) publication by screening titles and abstracts of articles. A second phase, data studies, or
unrelated reports were excluded. Full texts of the remaining (54) papers were retrieved. A manual search
added (6) publications on the topic to give a total of (60) publications, literature reviews, which were
included in this review.
Conclusions: Physical and chemical improvements in nanotechnology products continue to occur and may
soon lead to the development of “smart” endodontic therapeutic agents and materials. The future looks
auspicious for sustained dramatic inventions in novel nanomaterials for clinical dental applications.

Research paper thumbnail of Current Therapeutic Research

Current Therapeutic Research, 2021

Background: Blood clot (BC) and platelet-rich fibrin (PRF) has been successfully used to biologic... more Background: Blood clot (BC) and platelet-rich fibrin (PRF) has been successfully used to biologically treat immature roots. It is nowadays considered the treatment of choice. Objective: This study aimed to determine the ability of PRF and BC scaffolds to enhance regeneration of disinfected root canals and healing of apical periodontitis within experimentally enlarged canal apices of dog teeth. Methods: Forty-eight root canals in 28 mandibular premolars from 4 healthy adult dogs were experimentally infected and developed apical periodontitis. The teeth were randomly divided into a control (untreated) group, a disinfection only group, a group that received disinfection and a BC scaffold, and a group that received disinfection and a BC + PRF scaffold. Healing of the apical radiolucency was evaluated by conventional radiography, micro-computed tomography, and histology after 3 months. The data were analyzed by χ 2 test. Results: Healing was achieved in 49% of roots as seen on radiograph and 43% as seen on micro-computed tomography. There was no significant between-group difference in the presence or absence of periapical radiolucency in the mesial roots when seen on conventional images (P = 0.255), but there was a significant difference in the distal roots (P = 0.001); similarly, on micro-computed tomography, there was no significant between-group difference in the mesial roots (P = 0.174) but there was a significant difference in the distal roots (P = 0.001). Histologically, apical closure was significantly not greater in the BC + PRF scaffold group than in the BC scaffold group (P = 0.001). Conclusions: A mix of BC + PRF scaffold did not improve tissue regeneration in experimentally enlarged dog teeth.

Research paper thumbnail of International Journal of Nanomedicine 2014:9 27–31 International Journal of Nanomedicine Dovepress submit your manuscript | www.dovepress.com

R e v I e w open access to scientific and medical research Open Access Full Text Article

Research paper thumbnail of Clinical considerations of nanobiomaterials in endodontics: A systematic review

Saudi Endodontic Journal, 2018

Introduction: Clinical dentistry and primary oral care continue to experience significant improve... more Introduction: Clinical dentistry and primary oral care continue to experience significant improvements in quality at different levels of dentistry. These changes and improvements are of great benefit to both patients and clinicians because of significant achievements and advances in the physical, chemical, and biological sciences. Nanotechnology and its varied products are eloquent examples of these revolutionary trajectories in scientific discoveries and endeavors. Scientific revolution of nanotechnology has afforded the dental profession with a wealth of novel nanobiomaterials, templates for dental tissues regeneration, oral fluid nanodiagnostics, and the potential ability to use nanoparticles to replace lost dental hard tissues. Materials and Methods: A manual and systematic electronic search was conducted using the PubMed database. Several keywords were used: “nanocharacterization” “nanoclinical applications” “endodontics” “nanodentistry” “nanotechnology (263) (278) papers were ...

Research paper thumbnail of Endodontic management of dens invaginatus of maxillary lateral incisor: A case report

Journal of Kathmandu Medical College, 2021

Dens invaginatus is a developmental malformation of teeth with the enfolding of enamel and dentin... more Dens invaginatus is a developmental malformation of teeth with the enfolding of enamel and dentin into the pulp chamber and sometimes into the root that most commonly affects the maxillary lateral incisors. This anomaly may increase the risk of pulpal disease and can potentially complicate treatment due to its aberrant anatomy, thus posing a diagnostic challenge. Similarly, the incomplete elimination of the invagination and debridement may create dead space within the canal leading to the failures. This case reports the endodontic management of the Oehler’s type II Dens invaginatus.

Research paper thumbnail of Possible use of calcifying nanoparticles in immature root apex treatment

Dental Hypotheses, 2014

ABSTRACT Introduction: There are reports in the literature, which describe different techniques a... more ABSTRACT Introduction: There are reports in the literature, which describe different techniques and materials in the challenging management of thin dentin walls and immature root apex. It has been suggested that calcifying nanoparticles (CNPs) could be used in the management of these conditions. The Hypothesis: Compositionally modified CNPs made into a paste could become efficacious in managing thin dentin walls and immature root apex. Calcium and phosphate ions when mixed with CNPs could form a synthetic nanopaste that clinicians could use to manage thin dentin walls and to get a biological seal for immature root apex. Evaluation of the Hypothesis: CNPs can replicate and could facilitate the aggregations of calcium hydroxyapatite to produce a self- surrounding shell. These characteristics of CNPs could be used through their biomineralization process as initial nidus of calcification for further calcification progression to achieve total biological apical seal. If the hypothesis could be supported by biomineralization behavior of the paste (CNPs, Ca2+, and PO4−), a new therapeutic agent would have been added to the armamentarium of endodontists. There is need for more in vivo and in vitro investigations of modified nanopaste to manage these conditions.

Research paper thumbnail of Oral health knowledge, attitude and practices among health professionals in King Fahad Medical City, Riyadh

Dental Research Journal, 2012

The aim of this study was to assess the oral health knowledge, attitude and practices among the h... more The aim of this study was to assess the oral health knowledge, attitude and practices among the health care professionals working at KFMC, Riyadh. A cross-sectional study of 161 health professionals consisting of doctors, nurses, pharmacists, technicians and medical students was carried out using a structured, self-administered, close-ended questionnaire. Responses were collected and descriptive statistics, ANOVA, Chi square tests and z-tests were performed. Doctors showed a high mean knowledge score as compared with other health professionals. Comparison of oral health knowledge scores among the different types of health professionals yielded statistically significant differences (P < 0.05). The attitude toward visit to the dentist varied; 52.7% of nurses and 50% of technicians said that they would like to visit the dentist regularly. 66.7% of the medical students visit the dentist whenever they get pain in their tooth. 54.5% doctors and 45.8% pharmacists are likely to visit the...

Research paper thumbnail of Clinical implications of calcifying nanoparticles in dental diseases: a critical review

Background: Unknown cell-culture contaminants were described by Kajander and Ciftçioğlu in 1998. ... more Background: Unknown cell-culture contaminants were described by Kajander and Ciftçioğlu in 1998. These contaminants were called nanobacteria initially and later calcifying nanoparticles (CNPs). Their exact nature is unclear and controversial. CNPs have unique and unusual characteristics, which preclude placing them into any established evolutionary branch of life. Aim: The aim of this systematic review was to assess published data concerning CNPs since 1998 in general and in relation to dental diseases in particular. Materials and methods: The National Library of Medicine (PubMed) and Society of Photographic Instrumentation Engineers (SPIE) electronic and manual searches were conducted. Nanobacteria and calcifying nanoparticles were used as keywords. The search yielded 135 full-length papers. Further screening of the titles and abstracts that followed the review criteria resulted in 43 papers that met the study aim. Conclusion: The review showed that the existence of nanobacteria is still controversial. Some investigators have described a possible involvement of CNPs in pulpal and salivary gland calcifications, as well as the possible therapeutic use of CNPs in the treatment of cracked and/or eroded teeth.

Research paper thumbnail of Endodontic management of mandibular anterior teeth with two root canals

Saudi Endodontic Journal, 2019

Teeth with single root canals are considered to be the simplest for endodontic treatment. In the ... more Teeth with single root canals are considered to be the simplest for endodontic treatment. In the literature, the internal and external root canal anatomy of mandibular incisors and canines could present with a number of variations including extra canals. This case report illustrates the detection and successful nonsurgical endodontic retreatment of root canal systems in all mandibular incisors and canines in one patient.

Research paper thumbnail of Endodontic management of mandibular second premolar with Type IX canal configuration using cone-beam computed tomography

Saudi Endodontic Journal, 2019

Thorough knowledge and understanding of root canal anatomy and morphology are crucial to achieve ... more Thorough knowledge and understanding of root canal anatomy and morphology are crucial to achieve a successful endodontic treatment. However, the variation of the root canal morphology presents clinical difficulties that might lead to unfavorable outcomes. This case report describes endodontic management of a mandibular second premolar having three root canals of 26-year-old Saudi female. An axial view of cone-beam computed tomography (CBCT) revealed the presence of two fused roots and three root canals, the main canal trifurcated into three root canals at the middle third then merged in the C-shape canal. The configuration is called Sert and Bayirli's canal classification Type IX (1:3). The use of CBCT, in this case, contributed markedly through the diagnosis and endodontic management thereafter. In conclusion, the practitioner should be aware of unusual root canal anatomy in mandibular premolars and utilized all the appropriate armamentarium in diagnosing and treating these cases.

Research paper thumbnail of Histologic, Radiographic, and Micro-Computed Tomography Evaluation of Experimentally Enlarged Root Apices in Dog Teeth with Apical Periodontitis after Regenerative Treatment

Current Therapeutic Research, Clinical and Experimental, 2021

Background Blood clot (BC) and platelet-rich fibrin (PRF) has been successfully used to biologica... more Background Blood clot (BC) and platelet-rich fibrin (PRF) has been successfully used to biologically treat immature roots. It is nowadays considered the treatment of choice. Objective This study aimed to determine the ability of PRF and BC scaffolds to enhance regeneration of disinfected root canals and healing of apical periodontitis within experimentally enlarged canal apices of dog teeth. Methods Forty-eight root canals in 28 mandibular premolars from 4 healthy adult dogs were experimentally infected and developed apical periodontitis. The teeth were randomly divided into a control (untreated) group, a disinfection only group, a group that received disinfection and a BC scaffold, and a group that received disinfection and a BC + PRF scaffold. Healing of the apical radiolucency was evaluated by conventional radiography, micro-computed tomography, and histology after 3 months. The data were analyzed by χ2 test. Results Healing was achieved in 49% of roots as seen on radiograph and ...

Research paper thumbnail of Oral health knowledge, attitude and practices among health professionals in King Fahad Medical City, Riyadh

Dental Research Journal, 2012

Background: The aim of this study was to assess the oral health knowledge, attitude and practices... more Background: The aim of this study was to assess the oral health knowledge, attitude and practices among the health care professionals working at KFMC, Riyadh. Materials and Methods: A cross-sectional study of 161 health professionals consisting of doctors, nurses, pharmacists, technicians and medical students was carried out using a structured, self-administered, close-ended questionnaire. Responses were collected and descriptive statistics, ANOVA, Chi square tests and z-tests were performed. Results: Doctors showed a high mean knowledge score as compared with other health professionals. Comparison of oral health knowledge scores among the different types of health professionals yielded statistically significant differences (P < 0.05). The attitude toward visit to the dentist varied; 52.7% of nurses and 50% of technicians said that they would like to visit the dentist regularly. 66.7% of the medical students visit the dentist whenever they get pain in their tooth. 54.5% doctors a...

Research paper thumbnail of Eagle's syndrome: A rare case of young female

Eagle's syndrome is a condition that causes pain in the Craniofacial and cervical region of t... more Eagle's syndrome is a condition that causes pain in the Craniofacial and cervical region of the neck. Symptoms related to the Eagle's syndrome may be confused with the variety of neuralgias, oral, dental and temporomandibular joint (TMJ) conditions. In this paper, a case of the very young female suffering with the difficulty in swallowing and recurrent dull pain in the throat with restriction of the movement of head to the left side was presented. A thorough past medical and dental history, extra oral and intra oral examination coupled with the panoramic radiographic interpretation were used to diagnose Eagle's syndrome.

Research paper thumbnail of Consanguinity-related hyperdontia: An orthopantomographic study

Dental Research Journal, 2013

Background: The aim of this retrospective study was to describe the distribution of the non-syndr... more Background: The aim of this retrospective study was to describe the distribution of the non-syndromal supernumerary teeth (NSST) in a population of patients who attended the clinics of Riyadh Colleges of Dentistry and Pharmacy (RCsDP), Riyadh, Saudi Arabia. Materials and Methods: The study reviewed 1521 panoramic radiographs of Saudi and non-Saudi subjects who attended RCsDP clinic from November 2009 to November 2010. The data were analyzed using the Statistical Package for Social Sciences, utilizing Chi-square. Results: Eighteen (1.2%) patients were found to have NSST, comprising twelve males (66.7%), and six females (33.3%). The most common supernumerary teeth (ST) were the pre-molars six cases (33.3%), followed by the mesiodens, five cases (27.8%). The canines and distomolars three cases (16.6%) each respectively, while the least were the lateral incisors and paramolars of the two cases (11.1%) each. Conclusion: Consanguinity appeared to have a role in the development of hyperdon...

Research paper thumbnail of Endodontic management of dens invaginatus of maxillary lateral incisor: Report of two cases

Dens invaginatus (DI) is a rare malformation anomaly with a wide variety of morphological types. ... more Dens invaginatus (DI) is a rare malformation anomaly with a wide variety of morphological types. An early detection of the affected teeth is critical for proper management. The aim of this case report was to describe different occurrences of Type II DI in the maxillary lateral incisors with different treatment managements. The first case was treated with ProRoot® mineral trioxide aggregate (MTA) root repair material as an apical plug and backfill with thermoplasticized gutta‐percha for remaining canal space while the second case was filled totally with MTA. Both cases were treated under dental operation microscope. At 12‐month post‐treatment, the patients were asymptomatic, and the size of the periapical lesion was reduced.

Research paper thumbnail of Consanguinity-related hyperdontia: An orthopantomographic study

Dental research journal, 2013

The aim of this retrospective study was to describe the distribution of the non-syndromal supernu... more The aim of this retrospective study was to describe the distribution of the non-syndromal supernumerary teeth (NSST) in a population of patients who attended the clinics of Riyadh Colleges of Dentistry and Pharmacy (RCsDP), Riyadh, Saudi Arabia. The study reviewed 1521 panoramic radiographs of Saudi and non-Saudi subjects who attended RCsDP clinic from November 2009 to November 2010. The data were analyzed using the Statistical Package for Social Sciences, utilizing Chi-square. Eighteen (1.2%) patients were found to have NSST, comprising twelve males (66.7%), and six females (33.3%). The most common supernumerary teeth (ST) were the pre-molars six cases (33.3%), followed by the mesiodens, five cases (27.8%). The canines and distomolars three cases (16.6%) each respectively, while the least were the lateral incisors and paramolars of the two cases (11.1%) each. Consanguinity appeared to have a role in the development of hyperdontia in Saudi population because 13 cases (72.2%) out of ...

Research paper thumbnail of Eagle's syndrome: A rare case of young female

Dental research journal, 2013

Eagle's syndrome is a condition that causes pain in the Craniofacial and cervical region of t... more Eagle's syndrome is a condition that causes pain in the Craniofacial and cervical region of the neck. Symptoms related to the Eagle's syndrome may be confused with the variety of neuralgias, oral, dental and temporomandibular joint (TMJ) conditions. In this paper, a case of the very young female suffering with the difficulty in swallowing and recurrent dull pain in the throat with restriction of the movement of head to the left side was presented. A thorough past medical and dental history, extra oral and intra oral examination coupled with the panoramic radiographic interpretation were used to diagnose Eagle's syndrome.

Research paper thumbnail of Oral health knowledge, attitude and practices among health professionals in King Fahad Medical City, Riyadh

Dental research journal, 2012

The aim of this study was to assess the oral health knowledge, attitude and practices among the h... more The aim of this study was to assess the oral health knowledge, attitude and practices among the health care professionals working at KFMC, Riyadh. A cross-sectional study of 161 health professionals consisting of doctors, nurses, pharmacists, technicians and medical students was carried out using a structured, self-administered, close-ended questionnaire. Responses were collected and descriptive statistics, ANOVA, Chi square tests and z-tests were performed. Doctors showed a high mean knowledge score as compared with other health professionals. Comparison of oral health knowledge scores among the different types of health professionals yielded statistically significant differences (P < 0.05). The attitude toward visit to the dentist varied; 52.7% of nurses and 50% of technicians said that they would like to visit the dentist regularly. 66.7% of the medical students visit the dentist whenever they get pain in their tooth. 54.5% doctors and 45.8% pharmacists are likely to visit the...

Research paper thumbnail of Double palatal roots in maxillary second molars: A case report and literature review

Saudi Endodontic Journal, 2015

A thorough understanding of internal and external anatomy of various teeth is critical for a succ... more A thorough understanding of internal and external anatomy of various teeth is critical for a successful outcome of endodontic therapy. The aims of this paper were (1) to describe the clinical retreatment of a maxillary second molar with two palatal roots and (2) to review the available literature regarding this anatomical variation. A 45-year-old Saudi female presented for non-surgical retreatment of maxillary left second molar. Careful radiographic and clinical examinations revealed the presence of two buccal and two palatal roots each with a single root canal. Anatomical variations can occur in any tooth; therefore, the clinicians should always anticipate the occurrence of these variations and utilize all the available tools to diagnose and manage them Key words: Maxillary second molar, double palatal roots, root canal morphology, root canal retreatment Case Report [Downloaded free from http://www.saudiendodj.com on Tuesday, January 13, 2015, IP: 5.108.78.128] || Click here to download free Android application for this journ How to cite this article: Alenazy MS, Ahmad IA. Double palatal roots in maxillary second molars: A case report and literature review. Saudi Endod J 2015;5:56-60.

Research paper thumbnail of Oral health knowledge, attitude and practices among health professionals in King Fahad Medical City, Riyadh

DOAJ (DOAJ: Directory of Open Access Journals), 2012

Research paper thumbnail of Clinical considerations of nanobiomaterials in endodontics: A systematic review

Saudi Endodontic journal, 2018

Introduction: Clinical dentistry and primary oral care continue to experience significant improve... more Introduction: Clinical dentistry and primary oral care continue to experience significant improvements
in quality at different levels of dentistry. These changes and improvements are of great benefit to both
patients and clinicians because of significant achievements and advances in the physical, chemical, and
biological sciences. Nanotechnology and its varied products are eloquent examples of these revolutionary
trajectories in scientific discoveries and endeavors. Scientific revolution of nanotechnology has afforded
the dental profession with a wealth of novel nanobiomaterials, templates for dental tissues regeneration,
oral fluid nanodiagnostics, and the potential ability to use nanoparticles to replace lost dental hard tissues.
Materials and Methods: A manual and systematic electronic search was conducted using the PubMed
database. Several keywords were used: “nanocharacterization” “nanoclinical applications” “endodontics”
“nanodentistry” “nanotechnology (263) (278) papers were excluded because they were duplicated papers,”
“nanoparticles” and “regeneration.” Relevant articles published up to 2016 in the English language were
retrieved.
Results: Initial electronic and manual searches identified (571) studies. Preliminary analysis was performed
on a total of (332) publication by screening titles and abstracts of articles. A second phase, data studies, or
unrelated reports were excluded. Full texts of the remaining (54) papers were retrieved. A manual search
added (6) publications on the topic to give a total of (60) publications, literature reviews, which were
included in this review.
Conclusions: Physical and chemical improvements in nanotechnology products continue to occur and may
soon lead to the development of “smart” endodontic therapeutic agents and materials. The future looks
auspicious for sustained dramatic inventions in novel nanomaterials for clinical dental applications.

Research paper thumbnail of Current Therapeutic Research

Current Therapeutic Research, 2021

Background: Blood clot (BC) and platelet-rich fibrin (PRF) has been successfully used to biologic... more Background: Blood clot (BC) and platelet-rich fibrin (PRF) has been successfully used to biologically treat immature roots. It is nowadays considered the treatment of choice. Objective: This study aimed to determine the ability of PRF and BC scaffolds to enhance regeneration of disinfected root canals and healing of apical periodontitis within experimentally enlarged canal apices of dog teeth. Methods: Forty-eight root canals in 28 mandibular premolars from 4 healthy adult dogs were experimentally infected and developed apical periodontitis. The teeth were randomly divided into a control (untreated) group, a disinfection only group, a group that received disinfection and a BC scaffold, and a group that received disinfection and a BC + PRF scaffold. Healing of the apical radiolucency was evaluated by conventional radiography, micro-computed tomography, and histology after 3 months. The data were analyzed by χ 2 test. Results: Healing was achieved in 49% of roots as seen on radiograph and 43% as seen on micro-computed tomography. There was no significant between-group difference in the presence or absence of periapical radiolucency in the mesial roots when seen on conventional images (P = 0.255), but there was a significant difference in the distal roots (P = 0.001); similarly, on micro-computed tomography, there was no significant between-group difference in the mesial roots (P = 0.174) but there was a significant difference in the distal roots (P = 0.001). Histologically, apical closure was significantly not greater in the BC + PRF scaffold group than in the BC scaffold group (P = 0.001). Conclusions: A mix of BC + PRF scaffold did not improve tissue regeneration in experimentally enlarged dog teeth.

Research paper thumbnail of International Journal of Nanomedicine 2014:9 27–31 International Journal of Nanomedicine Dovepress submit your manuscript | www.dovepress.com

R e v I e w open access to scientific and medical research Open Access Full Text Article

Research paper thumbnail of Clinical considerations of nanobiomaterials in endodontics: A systematic review

Saudi Endodontic Journal, 2018

Introduction: Clinical dentistry and primary oral care continue to experience significant improve... more Introduction: Clinical dentistry and primary oral care continue to experience significant improvements in quality at different levels of dentistry. These changes and improvements are of great benefit to both patients and clinicians because of significant achievements and advances in the physical, chemical, and biological sciences. Nanotechnology and its varied products are eloquent examples of these revolutionary trajectories in scientific discoveries and endeavors. Scientific revolution of nanotechnology has afforded the dental profession with a wealth of novel nanobiomaterials, templates for dental tissues regeneration, oral fluid nanodiagnostics, and the potential ability to use nanoparticles to replace lost dental hard tissues. Materials and Methods: A manual and systematic electronic search was conducted using the PubMed database. Several keywords were used: “nanocharacterization” “nanoclinical applications” “endodontics” “nanodentistry” “nanotechnology (263) (278) papers were ...

Research paper thumbnail of Endodontic management of dens invaginatus of maxillary lateral incisor: A case report

Journal of Kathmandu Medical College, 2021

Dens invaginatus is a developmental malformation of teeth with the enfolding of enamel and dentin... more Dens invaginatus is a developmental malformation of teeth with the enfolding of enamel and dentin into the pulp chamber and sometimes into the root that most commonly affects the maxillary lateral incisors. This anomaly may increase the risk of pulpal disease and can potentially complicate treatment due to its aberrant anatomy, thus posing a diagnostic challenge. Similarly, the incomplete elimination of the invagination and debridement may create dead space within the canal leading to the failures. This case reports the endodontic management of the Oehler’s type II Dens invaginatus.

Research paper thumbnail of Possible use of calcifying nanoparticles in immature root apex treatment

Dental Hypotheses, 2014

ABSTRACT Introduction: There are reports in the literature, which describe different techniques a... more ABSTRACT Introduction: There are reports in the literature, which describe different techniques and materials in the challenging management of thin dentin walls and immature root apex. It has been suggested that calcifying nanoparticles (CNPs) could be used in the management of these conditions. The Hypothesis: Compositionally modified CNPs made into a paste could become efficacious in managing thin dentin walls and immature root apex. Calcium and phosphate ions when mixed with CNPs could form a synthetic nanopaste that clinicians could use to manage thin dentin walls and to get a biological seal for immature root apex. Evaluation of the Hypothesis: CNPs can replicate and could facilitate the aggregations of calcium hydroxyapatite to produce a self- surrounding shell. These characteristics of CNPs could be used through their biomineralization process as initial nidus of calcification for further calcification progression to achieve total biological apical seal. If the hypothesis could be supported by biomineralization behavior of the paste (CNPs, Ca2+, and PO4−), a new therapeutic agent would have been added to the armamentarium of endodontists. There is need for more in vivo and in vitro investigations of modified nanopaste to manage these conditions.

Research paper thumbnail of Oral health knowledge, attitude and practices among health professionals in King Fahad Medical City, Riyadh

Dental Research Journal, 2012

The aim of this study was to assess the oral health knowledge, attitude and practices among the h... more The aim of this study was to assess the oral health knowledge, attitude and practices among the health care professionals working at KFMC, Riyadh. A cross-sectional study of 161 health professionals consisting of doctors, nurses, pharmacists, technicians and medical students was carried out using a structured, self-administered, close-ended questionnaire. Responses were collected and descriptive statistics, ANOVA, Chi square tests and z-tests were performed. Doctors showed a high mean knowledge score as compared with other health professionals. Comparison of oral health knowledge scores among the different types of health professionals yielded statistically significant differences (P < 0.05). The attitude toward visit to the dentist varied; 52.7% of nurses and 50% of technicians said that they would like to visit the dentist regularly. 66.7% of the medical students visit the dentist whenever they get pain in their tooth. 54.5% doctors and 45.8% pharmacists are likely to visit the...

Research paper thumbnail of Clinical implications of calcifying nanoparticles in dental diseases: a critical review

Background: Unknown cell-culture contaminants were described by Kajander and Ciftçioğlu in 1998. ... more Background: Unknown cell-culture contaminants were described by Kajander and Ciftçioğlu in 1998. These contaminants were called nanobacteria initially and later calcifying nanoparticles (CNPs). Their exact nature is unclear and controversial. CNPs have unique and unusual characteristics, which preclude placing them into any established evolutionary branch of life. Aim: The aim of this systematic review was to assess published data concerning CNPs since 1998 in general and in relation to dental diseases in particular. Materials and methods: The National Library of Medicine (PubMed) and Society of Photographic Instrumentation Engineers (SPIE) electronic and manual searches were conducted. Nanobacteria and calcifying nanoparticles were used as keywords. The search yielded 135 full-length papers. Further screening of the titles and abstracts that followed the review criteria resulted in 43 papers that met the study aim. Conclusion: The review showed that the existence of nanobacteria is still controversial. Some investigators have described a possible involvement of CNPs in pulpal and salivary gland calcifications, as well as the possible therapeutic use of CNPs in the treatment of cracked and/or eroded teeth.

Research paper thumbnail of Endodontic management of mandibular anterior teeth with two root canals

Saudi Endodontic Journal, 2019

Teeth with single root canals are considered to be the simplest for endodontic treatment. In the ... more Teeth with single root canals are considered to be the simplest for endodontic treatment. In the literature, the internal and external root canal anatomy of mandibular incisors and canines could present with a number of variations including extra canals. This case report illustrates the detection and successful nonsurgical endodontic retreatment of root canal systems in all mandibular incisors and canines in one patient.

Research paper thumbnail of Endodontic management of mandibular second premolar with Type IX canal configuration using cone-beam computed tomography

Saudi Endodontic Journal, 2019

Thorough knowledge and understanding of root canal anatomy and morphology are crucial to achieve ... more Thorough knowledge and understanding of root canal anatomy and morphology are crucial to achieve a successful endodontic treatment. However, the variation of the root canal morphology presents clinical difficulties that might lead to unfavorable outcomes. This case report describes endodontic management of a mandibular second premolar having three root canals of 26-year-old Saudi female. An axial view of cone-beam computed tomography (CBCT) revealed the presence of two fused roots and three root canals, the main canal trifurcated into three root canals at the middle third then merged in the C-shape canal. The configuration is called Sert and Bayirli's canal classification Type IX (1:3). The use of CBCT, in this case, contributed markedly through the diagnosis and endodontic management thereafter. In conclusion, the practitioner should be aware of unusual root canal anatomy in mandibular premolars and utilized all the appropriate armamentarium in diagnosing and treating these cases.

Research paper thumbnail of Histologic, Radiographic, and Micro-Computed Tomography Evaluation of Experimentally Enlarged Root Apices in Dog Teeth with Apical Periodontitis after Regenerative Treatment

Current Therapeutic Research, Clinical and Experimental, 2021

Background Blood clot (BC) and platelet-rich fibrin (PRF) has been successfully used to biologica... more Background Blood clot (BC) and platelet-rich fibrin (PRF) has been successfully used to biologically treat immature roots. It is nowadays considered the treatment of choice. Objective This study aimed to determine the ability of PRF and BC scaffolds to enhance regeneration of disinfected root canals and healing of apical periodontitis within experimentally enlarged canal apices of dog teeth. Methods Forty-eight root canals in 28 mandibular premolars from 4 healthy adult dogs were experimentally infected and developed apical periodontitis. The teeth were randomly divided into a control (untreated) group, a disinfection only group, a group that received disinfection and a BC scaffold, and a group that received disinfection and a BC + PRF scaffold. Healing of the apical radiolucency was evaluated by conventional radiography, micro-computed tomography, and histology after 3 months. The data were analyzed by χ2 test. Results Healing was achieved in 49% of roots as seen on radiograph and ...

Research paper thumbnail of Oral health knowledge, attitude and practices among health professionals in King Fahad Medical City, Riyadh

Dental Research Journal, 2012

Background: The aim of this study was to assess the oral health knowledge, attitude and practices... more Background: The aim of this study was to assess the oral health knowledge, attitude and practices among the health care professionals working at KFMC, Riyadh. Materials and Methods: A cross-sectional study of 161 health professionals consisting of doctors, nurses, pharmacists, technicians and medical students was carried out using a structured, self-administered, close-ended questionnaire. Responses were collected and descriptive statistics, ANOVA, Chi square tests and z-tests were performed. Results: Doctors showed a high mean knowledge score as compared with other health professionals. Comparison of oral health knowledge scores among the different types of health professionals yielded statistically significant differences (P < 0.05). The attitude toward visit to the dentist varied; 52.7% of nurses and 50% of technicians said that they would like to visit the dentist regularly. 66.7% of the medical students visit the dentist whenever they get pain in their tooth. 54.5% doctors a...

Research paper thumbnail of Eagle's syndrome: A rare case of young female

Eagle's syndrome is a condition that causes pain in the Craniofacial and cervical region of t... more Eagle's syndrome is a condition that causes pain in the Craniofacial and cervical region of the neck. Symptoms related to the Eagle's syndrome may be confused with the variety of neuralgias, oral, dental and temporomandibular joint (TMJ) conditions. In this paper, a case of the very young female suffering with the difficulty in swallowing and recurrent dull pain in the throat with restriction of the movement of head to the left side was presented. A thorough past medical and dental history, extra oral and intra oral examination coupled with the panoramic radiographic interpretation were used to diagnose Eagle's syndrome.

Research paper thumbnail of Consanguinity-related hyperdontia: An orthopantomographic study

Dental Research Journal, 2013

Background: The aim of this retrospective study was to describe the distribution of the non-syndr... more Background: The aim of this retrospective study was to describe the distribution of the non-syndromal supernumerary teeth (NSST) in a population of patients who attended the clinics of Riyadh Colleges of Dentistry and Pharmacy (RCsDP), Riyadh, Saudi Arabia. Materials and Methods: The study reviewed 1521 panoramic radiographs of Saudi and non-Saudi subjects who attended RCsDP clinic from November 2009 to November 2010. The data were analyzed using the Statistical Package for Social Sciences, utilizing Chi-square. Results: Eighteen (1.2%) patients were found to have NSST, comprising twelve males (66.7%), and six females (33.3%). The most common supernumerary teeth (ST) were the pre-molars six cases (33.3%), followed by the mesiodens, five cases (27.8%). The canines and distomolars three cases (16.6%) each respectively, while the least were the lateral incisors and paramolars of the two cases (11.1%) each. Conclusion: Consanguinity appeared to have a role in the development of hyperdon...

Research paper thumbnail of Endodontic management of dens invaginatus of maxillary lateral incisor: Report of two cases

Dens invaginatus (DI) is a rare malformation anomaly with a wide variety of morphological types. ... more Dens invaginatus (DI) is a rare malformation anomaly with a wide variety of morphological types. An early detection of the affected teeth is critical for proper management. The aim of this case report was to describe different occurrences of Type II DI in the maxillary lateral incisors with different treatment managements. The first case was treated with ProRoot® mineral trioxide aggregate (MTA) root repair material as an apical plug and backfill with thermoplasticized gutta‐percha for remaining canal space while the second case was filled totally with MTA. Both cases were treated under dental operation microscope. At 12‐month post‐treatment, the patients were asymptomatic, and the size of the periapical lesion was reduced.

Research paper thumbnail of Consanguinity-related hyperdontia: An orthopantomographic study

Dental research journal, 2013

The aim of this retrospective study was to describe the distribution of the non-syndromal supernu... more The aim of this retrospective study was to describe the distribution of the non-syndromal supernumerary teeth (NSST) in a population of patients who attended the clinics of Riyadh Colleges of Dentistry and Pharmacy (RCsDP), Riyadh, Saudi Arabia. The study reviewed 1521 panoramic radiographs of Saudi and non-Saudi subjects who attended RCsDP clinic from November 2009 to November 2010. The data were analyzed using the Statistical Package for Social Sciences, utilizing Chi-square. Eighteen (1.2%) patients were found to have NSST, comprising twelve males (66.7%), and six females (33.3%). The most common supernumerary teeth (ST) were the pre-molars six cases (33.3%), followed by the mesiodens, five cases (27.8%). The canines and distomolars three cases (16.6%) each respectively, while the least were the lateral incisors and paramolars of the two cases (11.1%) each. Consanguinity appeared to have a role in the development of hyperdontia in Saudi population because 13 cases (72.2%) out of ...

Research paper thumbnail of Eagle's syndrome: A rare case of young female

Dental research journal, 2013

Eagle's syndrome is a condition that causes pain in the Craniofacial and cervical region of t... more Eagle's syndrome is a condition that causes pain in the Craniofacial and cervical region of the neck. Symptoms related to the Eagle's syndrome may be confused with the variety of neuralgias, oral, dental and temporomandibular joint (TMJ) conditions. In this paper, a case of the very young female suffering with the difficulty in swallowing and recurrent dull pain in the throat with restriction of the movement of head to the left side was presented. A thorough past medical and dental history, extra oral and intra oral examination coupled with the panoramic radiographic interpretation were used to diagnose Eagle's syndrome.

Research paper thumbnail of Oral health knowledge, attitude and practices among health professionals in King Fahad Medical City, Riyadh

Dental research journal, 2012

The aim of this study was to assess the oral health knowledge, attitude and practices among the h... more The aim of this study was to assess the oral health knowledge, attitude and practices among the health care professionals working at KFMC, Riyadh. A cross-sectional study of 161 health professionals consisting of doctors, nurses, pharmacists, technicians and medical students was carried out using a structured, self-administered, close-ended questionnaire. Responses were collected and descriptive statistics, ANOVA, Chi square tests and z-tests were performed. Doctors showed a high mean knowledge score as compared with other health professionals. Comparison of oral health knowledge scores among the different types of health professionals yielded statistically significant differences (P < 0.05). The attitude toward visit to the dentist varied; 52.7% of nurses and 50% of technicians said that they would like to visit the dentist regularly. 66.7% of the medical students visit the dentist whenever they get pain in their tooth. 54.5% doctors and 45.8% pharmacists are likely to visit the...

Research paper thumbnail of Double palatal roots in maxillary second molars: A case report and literature review

Saudi Endodontic Journal, 2015

A thorough understanding of internal and external anatomy of various teeth is critical for a succ... more A thorough understanding of internal and external anatomy of various teeth is critical for a successful outcome of endodontic therapy. The aims of this paper were (1) to describe the clinical retreatment of a maxillary second molar with two palatal roots and (2) to review the available literature regarding this anatomical variation. A 45-year-old Saudi female presented for non-surgical retreatment of maxillary left second molar. Careful radiographic and clinical examinations revealed the presence of two buccal and two palatal roots each with a single root canal. Anatomical variations can occur in any tooth; therefore, the clinicians should always anticipate the occurrence of these variations and utilize all the available tools to diagnose and manage them Key words: Maxillary second molar, double palatal roots, root canal morphology, root canal retreatment Case Report [Downloaded free from http://www.saudiendodj.com on Tuesday, January 13, 2015, IP: 5.108.78.128] || Click here to download free Android application for this journ How to cite this article: Alenazy MS, Ahmad IA. Double palatal roots in maxillary second molars: A case report and literature review. Saudi Endod J 2015;5:56-60.