Artak Heboyan - Academia.edu (original) (raw)

Papers by Artak Heboyan

Research paper thumbnail of Fixed Prosthetic Restorations and Periodontal Health: A Narrative Review

Journal of Functional Biomaterials

Periodontal health plays an important role in the longevity of prosthodontic restorations. The is... more Periodontal health plays an important role in the longevity of prosthodontic restorations. The issues of comparative assessment of prosthetic constructions are complicated and not fully understood. The aim of this article is to review and present the current knowledge regarding the various technical, clinical, and molecular aspects of different prosthetic biomaterials and highlight the interactions between periodontal health and prosthetic restorations. Articles on periodontal health and fixed dental prostheses were searched using the keywords “zirconium”, “CAD/CAM”, “dental ceramics”, “metal–ceramics”, “margin fit”, “crown”, “fixed dental prostheses”, “periodontium”, and “margin gap” in PubMed/Medline, Scopus, Google Scholar, and Science Direct. Further search criteria included being published in English, and between January 1981 and September 2021. Then, relevant articles were selected, included, and critically analyzed in this review. The margin of discrepancy results in the enha...

Research paper thumbnail of Bacteriological Evaluation of Gingival Crevicular Fluid in Teeth Restored Using Fixed Dental Prostheses: An In Vivo Study

International Journal of Molecular Sciences, May 22, 2021

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Research paper thumbnail of Occurrence of Recurrent Aphthous Stomatitis (RAS) as a Rare Oral Manifestation in a Patient with Gilbert's Syndrome

Case Reports in Dentistry, 2021

Recurrent aphthous stomatitis is an ulcerative disease of the oral cavity and can occur in isolat... more Recurrent aphthous stomatitis is an ulcerative disease of the oral cavity and can occur in isolation or as a manifestation of many systemic diseases. It is a quite common entity and may hence often be overlooked as an isolated lesion. Gilbert's syndrome is a genetic disorder where a deficiency of an enzyme associated with the conjugation of bilirubin results in unconjugated hyperbilirubinemia. The disease is generally asymptomatic and is aggravated by certain trigger factors. No associated oral manifestations are known. In this case report, we discuss the concomitant presence of recurrent aphthous stomatitis in a patient of Gilbert's syndrome. The presence of such recurrent stomatitis may represent as an oral manifestation of Gilbert's syndrome. Early identification of these entities may improve the overall quality of life of the patient.

Research paper thumbnail of Cement Selection in Dental Practice

WORLD SCIENCE, 2019

The cementation procedure is considered to be the most important stage of fixed prosthodontics, w... more The cementation procedure is considered to be the most important stage of fixed prosthodontics, while the correct selection of cement is the guarantee of successful restoration which is conditioned by the its durability. Over the recent years, numerous cementing substances have been introduced to the dental practice that differ greatly from conventional cements with their properties and application methods and that is why even experienced dentists often have certain difficulties in the variety of cements to choose the one that is right for each clinical case. The selection of cement depends on a number of factors, such as the type of resorption substance, the shape of prepared tooth, the possibility to isolate the area, subject to cementation in the oral cavity as well as the patient's aesthetic requirements. Thus, the objective of the article is to analyze currently used dental cements in order to help the dentists make the right selection of cement for different clinical cases.

Research paper thumbnail of Clinical Case of Root Resorption Due to Improper Orthodontic Treatment

The article presents a case of tooth root resorption due to improper orthodontic treatment. Befor... more The article presents a case of tooth root resorption due to improper orthodontic treatment. Before the orthodontic treatment, it is necessary to diagnose the anomaly precisely, to plan and correspondingly carry out a proper treatment, considering the direction, magnitude and duration of the orthodontic forces, individual peculiarities and risk factors in every clinical case to avoid complications and achieve a successful outcome. All above-mentioned, if not taken into consideration, leads to various complications such as root resorption. The peculiarity of the presented clinical case is that X-ray examination was neglected both at the stage of diagnosis and treatment planning and during treatment. The treatment lasted more than three years. As a result, the patient developed certain complaints and presented to our clinic with loose teeth and toothache. After appropriate examinations, root resorption was diagnosed in a number of teeth. Moreover, the root resorption was severely prono...

Research paper thumbnail of Recent Advances in Myoelectric Control for Finger Prostheses for Multiple Finger Loss

The loss of one or multiple fingers can lead to psychological problems as well as functional impa... more The loss of one or multiple fingers can lead to psychological problems as well as functional impairment. Various options exist for replacement and restoration after hand or finger loss. Prosthetic hand or finger prostheses improve esthetic outcomes and the quality of life for patients. Myoelectrically controlled hand prostheses have been used to attempt to produce different movements. The available articles (original research articles and review articles) on myoelectrically controlled finger/hand prostheses from January 1922 to February 2021 in English were reviewed using MEDLINE/PubMed, Web of Science, and ScienceDirect resources. The articles were searched using the keywords “finger/hand loss”, “finger prosthesis”, “myoelectric control”, and “prostheses” and relevant articles were selected. Myoelectric or electromyography (EMG) signals are read by myoelectrodes and the signals are amplified, from which the muscle’s naturally generated electricity can be measured. The control of th...

Research paper thumbnail of Three-dimensional semi-automated volumetric assessment of the pulp space of teeth following regenerative dental procedures

Scientific Reports

The volumetric change that occurs in the pulp space over time represents a critical measure when ... more The volumetric change that occurs in the pulp space over time represents a critical measure when it comes to determining the secondary outcomes of regenerative endodontic procedures (REPs). However, to date, only a few studies have investigated the accuracy of the available domain-specialized medical imaging tools with regard to three-dimensional (3D) volumetric assessment. This study sought to compare the accuracy of two different artificial intelligence-based medical imaging programs namely OsiriX MD (v 9.0, Pixmeo SARL, Bernex Switzerland, https://www.osirix-viewer.com) and 3D Slicer (http://www.slicer.org), in terms of estimating the volume of the pulp space following a REP. An Invitro assessment was performed to check the reliability and sensitivity of the two medical imaging programs in use. For the subsequent clinical application, pre- and post-procedure cone beam computed tomography scans of 35 immature permanent teeth with necrotic pulp and periradicular pathosis that had b...

Research paper thumbnail of Wear Resistance, Color Stability and Displacement Resistance of Milled PEEK Crowns Compared to Zirconia Crowns under Stimulated Chewing and High-Performance Aging

Polymers

Recently, polyetheretherketone (PEEK) has been introduced to the dental market as a high-performa... more Recently, polyetheretherketone (PEEK) has been introduced to the dental market as a high-performance and chemically inert biomaterial. This study aimed to compare the wear resistance, abrasiveness, color stability, and displacement resistance of zirconia and PEEK milled crowns. An ideal tooth preparation of a first maxillary molar was done and scanned by an intraoral scanner to make a digital model. Then, the prosthetic crown was digitally designed on the CAD software, and the STL file was milled in zirconia (CaroZiir S, Carol Zircolite Pvt. Ltd., Gujarat, India) and PEEK (BioHpp, Bredent GmbH, Senden, Germany) crowns using five-axis CNC milling machines. The wear resistance, color stability, and displacement resistance of the milled monolithic zirconia with unfilled PEEK crowns using a chewing simulator with thermocyclic aging (120,000 cycles) were compared. The antagonist wear, material wear, color stability, and displacement were evaluated and compared among the groups using the ...

Research paper thumbnail of Impression Material Selection and Soft Tissue Management in Contemporary Fixed Prosthodontics

International Academy Journal Web of Scholar

Whether impression is diagnostic or taken for provision of final restoration, its accuracy is cru... more Whether impression is diagnostic or taken for provision of final restoration, its accuracy is crucial for the ultimate outcome. The objective of this review is to provide comprehensive, exhaustive and up-to-date information on impression materials and soft tissue procedures, which will facilitate the dentist's daily work in taking impressions to make various restorations. Taking precise impressions is rather challenging for even experienced dentists. It's rather difficult to achieve perfection, even despite the daily work with impression because of some issues, such as pulls, bubbles and missed margins. All the impression materials are different, each having their advantages and drawbacks. The impression taking technique is also very important, especially dealing with soft tissues and gingival retraction. The latter is important not only when working with different impression materials but taking digital impressions as well.

Research paper thumbnail of Halitosis as an Issue of Social and Psychological Significance

Journal of Research in Medical and Dental Science, 2019

Halitosis or bad breath often occurs a barrier in social contact and might lead to the developmen... more Halitosis or bad breath often occurs a barrier in social contact and might lead to the development of psychological complications. Patients suffering from this condition commonly seek the aid of different specialists for the diagnosis and proper treatment. Effective treatment can be achieved only under the conditions of accurate diagnosis and clarification of etiology. It should be noted, that solution to the problem requires interdisciplinary approach involving medical specialists in different fields in order to avoid misdiagnosis and inappropriate treatment. Difference and controversy in etiological factors and approaches to the treatment of halitosis, mentioned in the literature necessitate further investigation and analysis. Taking into consideration an individual’s social and psychological manifestations which are conditioned by halitosis, the objective of the study is to analyze the causative factors, diagnostic methods and treatment options aimed to maintain oral health as we...

Research paper thumbnail of Characteristics of Periodontal Tissues in Prosthetic Treatment with Fixed Dental Prostheses

Molecules

The objective of the present study was to investigate the effects of various types of fixed prost... more The objective of the present study was to investigate the effects of various types of fixed prostheses on periodontal tissues and explore the association of gingival biotype and gum recession in relation to prosthesis types. The study participants (N = 95) were divided into three groups based on the type of dental prosthesis: Group-I: cobalt-chrome (Co-Cr) ceramic prosthesis fabricated by the conventional method (n = 35); Group-II: consisted of patients with Co-Cr ceramic prostheses fabricated by a computer-aided design and computer aided manufacturing (CAD/CAM) technique (n = 30); and Group-III: zirconia-based prostheses fabricated by the CAD/CAM technique (n = 30). Following the use of prostheses, periodontal examinations were performed using the Community Periodontal Index (CPI) and Modified Approximal Plaque Index (MAPI). In addition, the gingival biotype was examined using a probe transparency method. The Statistical Package for the Social Sciences (SPSS), Version 20 (IBM Compa...

Research paper thumbnail of Bacteriological Evaluation of Gingival Crevicular Fluid in Teeth Restored Using Fixed Dental Prostheses: An In Vivo Study

International Journal of Molecular Sciences

The present in vivo study determined the microbiological counts of the gingival crevicular fluid ... more The present in vivo study determined the microbiological counts of the gingival crevicular fluid (GCF) among patients with fixed dental prostheses fabricated using three different techniques. A total of 129 subjects were divided into three study groups: first, cobalt-chrome-based, metal-ceramic prostheses fabricated by the conventional method (MC, n = 35); the second group consisted of cobalt-chrome-based, metal-ceramic prostheses fabricated by the computer-aided design and computer-aided manufacturing (CAD/CAM) technique (CC-MC, n = 35); the third group comprised zirconia-based ceramic prostheses fabricated using the CAD/CAM technique (CC-Zr, n = 35). The control consisted of 24 patients using prostheses fabricated with either MC, CC-MC, or CC-Zr. The GCF was obtained from the subjects before treatment, and 6 and 12 months after the prosthetic treatment. Bacteriological and bacterioscopic analysis of the GCF was performed to analyze the patients’ GCF. The data were analyzed using S...

Research paper thumbnail of Biomechanical Aspects of Various Attachments for Implant Overdentures: A Review

Polymers

There have been considerable recent technological developments for implant overdenture attachment... more There have been considerable recent technological developments for implant overdenture attachments. This study presents an overview of the biomechanical and biomolecular aspects of various attachments for implant overdenture. Available articles on attachments for implant overdenture were reviewed from January 1980 to August 2021 in the ScienceDirect, MEDLINE/PubMed, and Web of Science resources, and relevant studies were included in this study. We focused on the following topics: attachment systems, retention of various attachments, stress distribution with different attachments, the design and fabrication of attachments, digital techniques in overdenture attachments, and the effects of attachments in peri-implant health. We found that plastic resin is commonly used for ball and bar attachments, whereas nylon resin is commonly used in locator attachments. The locator system offers a valuable attachment option for implant-retained overdenture. Attachment retention reduces while later...

Research paper thumbnail of Cytomorphometric Analysis of Inflammation Dynamics in the Periodontium Following the Use of Fixed Dental Prostheses

Molecules

Cytomorphometry is used in the sampling of biological materials and diagnostic procedures. The us... more Cytomorphometry is used in the sampling of biological materials and diagnostic procedures. The use of cytological studies in periodontal diseases is not well described in the literature. Our study aimed to quantitatively assess the inflammation dynamics using cytomorphometric analysis of the periodontium before and after the use of fixed dental prostheses. Following ethics approval, a total of 105 subjects were divided in 3 groups as gingivitis (n = 23), periodontitis (n = 58), and healthy periodontium (control) (n = 24). The fixed dental prostheses (crowns and fixed partial dentures) were fabricated from cobalt-chrome metal-ceramic prostheses using the conventional method (C/M-CoCr), cobalt-chrome metal-ceramic prostheses by the computer-aided design and computer-aided manufacturing (CAD/CAM) technique (C/C-CoCr), and zirconia-based ceramic prostheses by the CAD/CAM technique (C/C-Zr) among subjects with gingivitis and periodontitis. The gingival crevicular fluid (GCF) was obtained...

Research paper thumbnail of Tooth Root Resorption Conditioned by Orthodontic Treatment

Oral Health and Dental science

Research paper thumbnail of Comparative assessment of periodontal complex by experimental method and elaboration of new protocols for corresponding treatment of external and perforating internal resorption resulted many years after trauma

Biomedical Research

Objective The objective of the study is to assess the condition of periodontal complex by cone be... more Objective The objective of the study is to assess the condition of periodontal complex by cone beam computed tomography and objective data of gingival crevicular fluid in young with different types of tooth root resorption as a result of a maxillofacial trauma, and to use the obtained results to develop new treatment strategy. Material and Methods This clinical, experimental, non-randomized study included cone beam computed tomography as well as determination of gingival crevicular fluid volume and pH in 4 patients who were divided in two groups. Both groups consisted of the patients with tooth root external and perforating internal resorption. In the first group (G1) antibiotics was administered along with conventional endodontic treatment, while in the second group (G2) endodontic treatment was carried out without antibiotics. Results in the G1 the volume of gingival crevicular fluid was 6 mm 2 and more, while pH was 6.5. No pain or edema were observed during the postoperative period. In the G2, the volume of gingival crevicular fluid was 6 mm 2 and more, while pH was 7,0 and 6,5 in external and perforating internal resorption, respectively. Postoperative period was accompanied by pain, while edema was observed in perforating internal resorption. Conclusions According to the results obtained within the frames of this experimental study it can be concluded that the change in objective data of gingival crevicular fluid occurs in external and perforating internal root resorptions, while the use of antibiotics during the postoperative period prevents the occurrence of tenderness and complications such as edema.

Research paper thumbnail of Fixed Prosthetic Restorations and Periodontal Health: A Narrative Review

Journal of Functional Biomaterials

Periodontal health plays an important role in the longevity of prosthodontic restorations. The is... more Periodontal health plays an important role in the longevity of prosthodontic restorations. The issues of comparative assessment of prosthetic constructions are complicated and not fully understood. The aim of this article is to review and present the current knowledge regarding the various technical, clinical, and molecular aspects of different prosthetic biomaterials and highlight the interactions between periodontal health and prosthetic restorations. Articles on periodontal health and fixed dental prostheses were searched using the keywords “zirconium”, “CAD/CAM”, “dental ceramics”, “metal–ceramics”, “margin fit”, “crown”, “fixed dental prostheses”, “periodontium”, and “margin gap” in PubMed/Medline, Scopus, Google Scholar, and Science Direct. Further search criteria included being published in English, and between January 1981 and September 2021. Then, relevant articles were selected, included, and critically analyzed in this review. The margin of discrepancy results in the enha...

Research paper thumbnail of Bacteriological Evaluation of Gingival Crevicular Fluid in Teeth Restored Using Fixed Dental Prostheses: An In Vivo Study

International Journal of Molecular Sciences, May 22, 2021

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Research paper thumbnail of Occurrence of Recurrent Aphthous Stomatitis (RAS) as a Rare Oral Manifestation in a Patient with Gilbert's Syndrome

Case Reports in Dentistry, 2021

Recurrent aphthous stomatitis is an ulcerative disease of the oral cavity and can occur in isolat... more Recurrent aphthous stomatitis is an ulcerative disease of the oral cavity and can occur in isolation or as a manifestation of many systemic diseases. It is a quite common entity and may hence often be overlooked as an isolated lesion. Gilbert's syndrome is a genetic disorder where a deficiency of an enzyme associated with the conjugation of bilirubin results in unconjugated hyperbilirubinemia. The disease is generally asymptomatic and is aggravated by certain trigger factors. No associated oral manifestations are known. In this case report, we discuss the concomitant presence of recurrent aphthous stomatitis in a patient of Gilbert's syndrome. The presence of such recurrent stomatitis may represent as an oral manifestation of Gilbert's syndrome. Early identification of these entities may improve the overall quality of life of the patient.

Research paper thumbnail of Cement Selection in Dental Practice

WORLD SCIENCE, 2019

The cementation procedure is considered to be the most important stage of fixed prosthodontics, w... more The cementation procedure is considered to be the most important stage of fixed prosthodontics, while the correct selection of cement is the guarantee of successful restoration which is conditioned by the its durability. Over the recent years, numerous cementing substances have been introduced to the dental practice that differ greatly from conventional cements with their properties and application methods and that is why even experienced dentists often have certain difficulties in the variety of cements to choose the one that is right for each clinical case. The selection of cement depends on a number of factors, such as the type of resorption substance, the shape of prepared tooth, the possibility to isolate the area, subject to cementation in the oral cavity as well as the patient's aesthetic requirements. Thus, the objective of the article is to analyze currently used dental cements in order to help the dentists make the right selection of cement for different clinical cases.

Research paper thumbnail of Clinical Case of Root Resorption Due to Improper Orthodontic Treatment

The article presents a case of tooth root resorption due to improper orthodontic treatment. Befor... more The article presents a case of tooth root resorption due to improper orthodontic treatment. Before the orthodontic treatment, it is necessary to diagnose the anomaly precisely, to plan and correspondingly carry out a proper treatment, considering the direction, magnitude and duration of the orthodontic forces, individual peculiarities and risk factors in every clinical case to avoid complications and achieve a successful outcome. All above-mentioned, if not taken into consideration, leads to various complications such as root resorption. The peculiarity of the presented clinical case is that X-ray examination was neglected both at the stage of diagnosis and treatment planning and during treatment. The treatment lasted more than three years. As a result, the patient developed certain complaints and presented to our clinic with loose teeth and toothache. After appropriate examinations, root resorption was diagnosed in a number of teeth. Moreover, the root resorption was severely prono...

Research paper thumbnail of Recent Advances in Myoelectric Control for Finger Prostheses for Multiple Finger Loss

The loss of one or multiple fingers can lead to psychological problems as well as functional impa... more The loss of one or multiple fingers can lead to psychological problems as well as functional impairment. Various options exist for replacement and restoration after hand or finger loss. Prosthetic hand or finger prostheses improve esthetic outcomes and the quality of life for patients. Myoelectrically controlled hand prostheses have been used to attempt to produce different movements. The available articles (original research articles and review articles) on myoelectrically controlled finger/hand prostheses from January 1922 to February 2021 in English were reviewed using MEDLINE/PubMed, Web of Science, and ScienceDirect resources. The articles were searched using the keywords “finger/hand loss”, “finger prosthesis”, “myoelectric control”, and “prostheses” and relevant articles were selected. Myoelectric or electromyography (EMG) signals are read by myoelectrodes and the signals are amplified, from which the muscle’s naturally generated electricity can be measured. The control of th...

Research paper thumbnail of Three-dimensional semi-automated volumetric assessment of the pulp space of teeth following regenerative dental procedures

Scientific Reports

The volumetric change that occurs in the pulp space over time represents a critical measure when ... more The volumetric change that occurs in the pulp space over time represents a critical measure when it comes to determining the secondary outcomes of regenerative endodontic procedures (REPs). However, to date, only a few studies have investigated the accuracy of the available domain-specialized medical imaging tools with regard to three-dimensional (3D) volumetric assessment. This study sought to compare the accuracy of two different artificial intelligence-based medical imaging programs namely OsiriX MD (v 9.0, Pixmeo SARL, Bernex Switzerland, https://www.osirix-viewer.com) and 3D Slicer (http://www.slicer.org), in terms of estimating the volume of the pulp space following a REP. An Invitro assessment was performed to check the reliability and sensitivity of the two medical imaging programs in use. For the subsequent clinical application, pre- and post-procedure cone beam computed tomography scans of 35 immature permanent teeth with necrotic pulp and periradicular pathosis that had b...

Research paper thumbnail of Wear Resistance, Color Stability and Displacement Resistance of Milled PEEK Crowns Compared to Zirconia Crowns under Stimulated Chewing and High-Performance Aging

Polymers

Recently, polyetheretherketone (PEEK) has been introduced to the dental market as a high-performa... more Recently, polyetheretherketone (PEEK) has been introduced to the dental market as a high-performance and chemically inert biomaterial. This study aimed to compare the wear resistance, abrasiveness, color stability, and displacement resistance of zirconia and PEEK milled crowns. An ideal tooth preparation of a first maxillary molar was done and scanned by an intraoral scanner to make a digital model. Then, the prosthetic crown was digitally designed on the CAD software, and the STL file was milled in zirconia (CaroZiir S, Carol Zircolite Pvt. Ltd., Gujarat, India) and PEEK (BioHpp, Bredent GmbH, Senden, Germany) crowns using five-axis CNC milling machines. The wear resistance, color stability, and displacement resistance of the milled monolithic zirconia with unfilled PEEK crowns using a chewing simulator with thermocyclic aging (120,000 cycles) were compared. The antagonist wear, material wear, color stability, and displacement were evaluated and compared among the groups using the ...

Research paper thumbnail of Impression Material Selection and Soft Tissue Management in Contemporary Fixed Prosthodontics

International Academy Journal Web of Scholar

Whether impression is diagnostic or taken for provision of final restoration, its accuracy is cru... more Whether impression is diagnostic or taken for provision of final restoration, its accuracy is crucial for the ultimate outcome. The objective of this review is to provide comprehensive, exhaustive and up-to-date information on impression materials and soft tissue procedures, which will facilitate the dentist's daily work in taking impressions to make various restorations. Taking precise impressions is rather challenging for even experienced dentists. It's rather difficult to achieve perfection, even despite the daily work with impression because of some issues, such as pulls, bubbles and missed margins. All the impression materials are different, each having their advantages and drawbacks. The impression taking technique is also very important, especially dealing with soft tissues and gingival retraction. The latter is important not only when working with different impression materials but taking digital impressions as well.

Research paper thumbnail of Halitosis as an Issue of Social and Psychological Significance

Journal of Research in Medical and Dental Science, 2019

Halitosis or bad breath often occurs a barrier in social contact and might lead to the developmen... more Halitosis or bad breath often occurs a barrier in social contact and might lead to the development of psychological complications. Patients suffering from this condition commonly seek the aid of different specialists for the diagnosis and proper treatment. Effective treatment can be achieved only under the conditions of accurate diagnosis and clarification of etiology. It should be noted, that solution to the problem requires interdisciplinary approach involving medical specialists in different fields in order to avoid misdiagnosis and inappropriate treatment. Difference and controversy in etiological factors and approaches to the treatment of halitosis, mentioned in the literature necessitate further investigation and analysis. Taking into consideration an individual’s social and psychological manifestations which are conditioned by halitosis, the objective of the study is to analyze the causative factors, diagnostic methods and treatment options aimed to maintain oral health as we...

Research paper thumbnail of Characteristics of Periodontal Tissues in Prosthetic Treatment with Fixed Dental Prostheses

Molecules

The objective of the present study was to investigate the effects of various types of fixed prost... more The objective of the present study was to investigate the effects of various types of fixed prostheses on periodontal tissues and explore the association of gingival biotype and gum recession in relation to prosthesis types. The study participants (N = 95) were divided into three groups based on the type of dental prosthesis: Group-I: cobalt-chrome (Co-Cr) ceramic prosthesis fabricated by the conventional method (n = 35); Group-II: consisted of patients with Co-Cr ceramic prostheses fabricated by a computer-aided design and computer aided manufacturing (CAD/CAM) technique (n = 30); and Group-III: zirconia-based prostheses fabricated by the CAD/CAM technique (n = 30). Following the use of prostheses, periodontal examinations were performed using the Community Periodontal Index (CPI) and Modified Approximal Plaque Index (MAPI). In addition, the gingival biotype was examined using a probe transparency method. The Statistical Package for the Social Sciences (SPSS), Version 20 (IBM Compa...

Research paper thumbnail of Bacteriological Evaluation of Gingival Crevicular Fluid in Teeth Restored Using Fixed Dental Prostheses: An In Vivo Study

International Journal of Molecular Sciences

The present in vivo study determined the microbiological counts of the gingival crevicular fluid ... more The present in vivo study determined the microbiological counts of the gingival crevicular fluid (GCF) among patients with fixed dental prostheses fabricated using three different techniques. A total of 129 subjects were divided into three study groups: first, cobalt-chrome-based, metal-ceramic prostheses fabricated by the conventional method (MC, n = 35); the second group consisted of cobalt-chrome-based, metal-ceramic prostheses fabricated by the computer-aided design and computer-aided manufacturing (CAD/CAM) technique (CC-MC, n = 35); the third group comprised zirconia-based ceramic prostheses fabricated using the CAD/CAM technique (CC-Zr, n = 35). The control consisted of 24 patients using prostheses fabricated with either MC, CC-MC, or CC-Zr. The GCF was obtained from the subjects before treatment, and 6 and 12 months after the prosthetic treatment. Bacteriological and bacterioscopic analysis of the GCF was performed to analyze the patients’ GCF. The data were analyzed using S...

Research paper thumbnail of Biomechanical Aspects of Various Attachments for Implant Overdentures: A Review

Polymers

There have been considerable recent technological developments for implant overdenture attachment... more There have been considerable recent technological developments for implant overdenture attachments. This study presents an overview of the biomechanical and biomolecular aspects of various attachments for implant overdenture. Available articles on attachments for implant overdenture were reviewed from January 1980 to August 2021 in the ScienceDirect, MEDLINE/PubMed, and Web of Science resources, and relevant studies were included in this study. We focused on the following topics: attachment systems, retention of various attachments, stress distribution with different attachments, the design and fabrication of attachments, digital techniques in overdenture attachments, and the effects of attachments in peri-implant health. We found that plastic resin is commonly used for ball and bar attachments, whereas nylon resin is commonly used in locator attachments. The locator system offers a valuable attachment option for implant-retained overdenture. Attachment retention reduces while later...

Research paper thumbnail of Cytomorphometric Analysis of Inflammation Dynamics in the Periodontium Following the Use of Fixed Dental Prostheses

Molecules

Cytomorphometry is used in the sampling of biological materials and diagnostic procedures. The us... more Cytomorphometry is used in the sampling of biological materials and diagnostic procedures. The use of cytological studies in periodontal diseases is not well described in the literature. Our study aimed to quantitatively assess the inflammation dynamics using cytomorphometric analysis of the periodontium before and after the use of fixed dental prostheses. Following ethics approval, a total of 105 subjects were divided in 3 groups as gingivitis (n = 23), periodontitis (n = 58), and healthy periodontium (control) (n = 24). The fixed dental prostheses (crowns and fixed partial dentures) were fabricated from cobalt-chrome metal-ceramic prostheses using the conventional method (C/M-CoCr), cobalt-chrome metal-ceramic prostheses by the computer-aided design and computer-aided manufacturing (CAD/CAM) technique (C/C-CoCr), and zirconia-based ceramic prostheses by the CAD/CAM technique (C/C-Zr) among subjects with gingivitis and periodontitis. The gingival crevicular fluid (GCF) was obtained...

Research paper thumbnail of Tooth Root Resorption Conditioned by Orthodontic Treatment

Oral Health and Dental science

Research paper thumbnail of Comparative assessment of periodontal complex by experimental method and elaboration of new protocols for corresponding treatment of external and perforating internal resorption resulted many years after trauma

Biomedical Research

Objective The objective of the study is to assess the condition of periodontal complex by cone be... more Objective The objective of the study is to assess the condition of periodontal complex by cone beam computed tomography and objective data of gingival crevicular fluid in young with different types of tooth root resorption as a result of a maxillofacial trauma, and to use the obtained results to develop new treatment strategy. Material and Methods This clinical, experimental, non-randomized study included cone beam computed tomography as well as determination of gingival crevicular fluid volume and pH in 4 patients who were divided in two groups. Both groups consisted of the patients with tooth root external and perforating internal resorption. In the first group (G1) antibiotics was administered along with conventional endodontic treatment, while in the second group (G2) endodontic treatment was carried out without antibiotics. Results in the G1 the volume of gingival crevicular fluid was 6 mm 2 and more, while pH was 6.5. No pain or edema were observed during the postoperative period. In the G2, the volume of gingival crevicular fluid was 6 mm 2 and more, while pH was 7,0 and 6,5 in external and perforating internal resorption, respectively. Postoperative period was accompanied by pain, while edema was observed in perforating internal resorption. Conclusions According to the results obtained within the frames of this experimental study it can be concluded that the change in objective data of gingival crevicular fluid occurs in external and perforating internal root resorptions, while the use of antibiotics during the postoperative period prevents the occurrence of tenderness and complications such as edema.