Mahmoud Badr - Academia.edu (original) (raw)

Papers by Mahmoud Badr

Research paper thumbnail of Assessment of The pretreatment Efficiency with Dexamethasone VS Placebo on Post-operative Pain in teeth with Symptomatic Irreversible Pulpitis

Egyptian dental journal, Oct 1, 2022

Post-operative pain is very common, affecting from 2.5% to almost 60% of subjects that have under... more Post-operative pain is very common, affecting from 2.5% to almost 60% of subjects that have undergone endodontic treatments (1) , and it shows a tendency to increase between 6 and 12 h after treatment, reaching a prevalence of about 40% in 24 h and falling to 11% one week after treatment.

Research paper thumbnail of Different management of non vital Permanent Anterior Teeth with Open Apex

Egyptian dental journal, Oct 1, 2022

Aim In patients having non vital anterior teeth with open apex and periapical abscess. This study... more Aim In patients having non vital anterior teeth with open apex and periapical abscess. This study was done to find whether or not the revascularization is more effective than MTA apexification in the following: 1. change in length of the root measured in mm. 2. change of dentin thickness: measured in millimeters. 3. closure of the apex: measured in millimeters Materials and Methods: twenty two patients suffering from non vital upper incisors with open apices were randomly assigned into two equal groups with 11 patients each. One group was treated by regeneration and the other by MTA apexification. Cases were assessed: clinically assessing swelling presence. Radiographically by digital radiography and parallel technique for more standardized results that allow accurate measurements of changes in root length, width of dentin, and apical diameter. Results: Results showed that there was no statistically significant difference between the 2 groups in 1 month, after 3 months, after 6 months, after 9 months and after 12 months. Also showed that the healing outcome of radiolucency was greatest at the re-vascularization gp (90.9 %), followed be the apexification by mineral trioxide aggregate gp (63.6 %) which showed high percentage of success. Moreover, the healing outcome of the swelling is greater at the re-vascularization gp (81.8 %), followed by the apexification by mineral trioxide aggregate gp (72.7 %) which showed high percentage of success. It also showed that the percentage increase of root length and dentin width is greater in re-vascularization gp followed by the apexification by mineral trioxide aggregate gp. However differences between apexification group and re-vascularization group were statistically not significant. On the other hand, regarding the decrease in apical width, better results were shown in MTA apexification group than the regeneration group. Although differences between MTA apexification group and regeneration group were statistically not significant. Conclusion 1-Re-vascularization and apexification by mineral trioxide aggregate are considered successful techniques for the management of non-vital teeth with immature apex yet revascularization procedure is still preferable. 2-Regeneration has a higher rate of success concerning resolution of swelling and radiolucencies. 3-Regeneration is superior in adjusting crown-to-root ratio.

Research paper thumbnail of Page 1 EFFICACY OF INNOVATIVE SONIC SYSTEM IN DEBRIS REMOVAL AND ELIMINATION OF ENTEROCOCCUS FAECALIS IN INFECTED ROOT CANALS AN INVITRO STUDY

Research paper thumbnail of Comparison of the Antibacterial Effect and Smear Layer Removal Using Photon-Initiated Photoacoustic Streaming Aided Irrigation Versus a Conventional Irrigation in Single-Rooted Canals: An In Vitro Study

Photomedicine and Laser Surgery, 2013

Objective: The Er:YAG laser with photon-induced photoacoustic streaming (PIPS) technique was repo... more Objective: The Er:YAG laser with photon-induced photoacoustic streaming (PIPS) technique was reported to be effective in root canal disinfection. This study attempted to further investigate the antibacterial efficacy and smear layer removal ability of PIPS in comparison with conventional syringe irrigation in vitro. Methods: For antibacterial analysis, 48 single-rooted human teeth were prepared and inoculated with Enterococcus faecalis, and then divided into six groups of eight roots each. The colony-forming units (CFUs) per milliliter were determined after infection as the baseline. Then, the teeth were subjected to either PIPS plus 3% sodium hypochlorite (PIPS + NaOCl) or conventional syringe irrigation with 0.9% saline, 3% NaOCl, 17% ethylenediaminetetraacetic acid (EDTA), 0.2% chlorhexidine gluconate (CHX), or 3% NaOCl alternating with 17% EDTA. The reduction of CFUs in the individual group was determined. Additionally, scanning electron microscopy (SEM) examination of the canal walls for E. faecalis colonization was performed. For comparing the smear removal efficacy, another 48 single-rooted teeth, assigned to different groups as mentioned, were irrigated after mechanical instrumentation. The presence of a smear layer at different levels of the root canal was scored by SEM examination. Results: No significant differences were found in CFU reduction. No bacteria could be observed by SEM in the NaOCl, NaOCl + EDTA, and PIPS + NaOCl groups. The scores of smear layer of the NaOCl + EDTA and PIPS + NaOCl groups were significantly lower than those of the other groups in the coronal and middle third of the root canal. None of the methods can effectively remove smear layer in the apical third. Conclusions: PIPS system supplied with NaOCl and conventional syringe irrigation with NaOCl + EDTA are comparable in their ability to remove E. faecalis and smear layer in single-rooted canals.

Research paper thumbnail of Assessment The Propolis Effect Versus Calcium Hydroxide Effect as Intracanal Medications on Post-Operative Pain in Necrotic Teeth

Al-Azhar Assiut Dental Journal, 2021

Aim: to evaluate the postoperative pain of using Propolis versus Calcium hydroxide as intracanal ... more Aim: to evaluate the postoperative pain of using Propolis versus Calcium hydroxide as intracanal medications on post-operative pain in necrotic teeth. Subjects and Methods: 40 patients requiring endodontic treatment for single rooted teeth were enrolled in this analysis. The selected patients were separated into two groups with 20 patients each; Group І: Propolis paste. Group II: Ca (OH) 2 paste. The local anesthesia was administrated, and the working length determined by Root ZX apex locator, and then confirmed radiographically. The root canals were mechanically prepared in a crowndown approach using the "TF Adaptive" setting on Elements Motor. TF Adaptive Green ML1 file (Medium Large) and Yellow ML2 size 35 taper 4% until the file reaches wanted length. Intracanal medicaments of the two groups were placed inside the canals and left for a week. Then the obturation was done in the second visit. Postoperative pain was judged by visual analogue scale (VAS) after 24 hours, 48 hours and 72 hours. Results: The pain intensity showed that there was no statistically noteworthy difference concerning the two groups. Conclusions: Propolis is an effective and safe intracanal medication that can be used to reduce post-operative pain in necrotic teeth. Post-operative pain predominance at 24 hours was 40% and markedly decreased during the first 2 days after treatment, dropping to 10% or less after 7 days. Flare-up defined as a serious exacerbation of a pulpal or peri radicular pathosis with a subsequent development of pain

Research paper thumbnail of Comparing the efficacy of EndoSequence Root Repair Material, Biodentine, MTA angelus as retrograde filling in microbial leakage by Confocal Laser Scanning Microscope

Egyptian Dental Journal, 2021

This study aimed to compare the efficacy of EndoSequence ® Root Repair Material, Biodentine, and ... more This study aimed to compare the efficacy of EndoSequence ® Root Repair Material, Biodentine, and MTA angelus® retrograde materials in microbial leakage while confirmed with Confocal Laser Scanning Microscope (CLSM). Methods: 55 maxillary single rooted teeth were used in this study. The teeth were decoronated at 16mm. root canals was prepared by using ProTaper rotary Ni-Ti instruments. Obturation of the root canals was performed using a single-cone Pro-taper F3 size Gutta-percha along with the sealer (AH+ plus). The apical 3mm of the roots were resected. Root end cavity was prepared by ultrasonic retro-tips. Samples were divided into 5 groups with 11 samples each according to retrograde cavities filling. Group 1 (EndoSequence), Group 2 (Biodentine). Group 3 (MTA angelus), Group 4 (Positive control), and Group 5 (Negative control). Dual chamber apparatus was prepared to test the retrograde filling leakage. The E.F in CLSM with magnification of 20X to measures of E. Faecalis penetration depth through retrograde materials. Results: EndoSequence ® had superior outcome in microbial leakage along with penetration depth into the dentinal tubules with statistically significant difference when compared to Biodentine TM and MTA angelus ® (p ≤ 0.05). On other hand there was no any statistically significant difference between Biodentine TM and MTA angelus ® (p>0.05) with more leakage in dual chamber whereas bacterial penetration into the dentinal tubules in CLSM was measured. Conclusions: EndoSequence showed better results in both bacterial leakage and in bacterial penetration.

Research paper thumbnail of Cone-beam assessment of gutta percha removal by Reciproc versus ProTaper Universal re-treatment

Egyptian Dental Journal, 2021

This study intended: to assess use cone-beam analysis of gutta percha removal by Reciproc versus ... more This study intended: to assess use cone-beam analysis of gutta percha removal by Reciproc versus ProTaper Universal retreatment systems. Methods: Thirty extracted humanoid lower first molars were collected. The mesiobuccal canals had been mechanically prepared in a crown-down approach using the "TF Adaptive" setting on Elements Motor. TF Adaptive Green ML1 file (Medium Large) and Yellow ML2 size 35 taper 4% till the file gets to the effective length. the obturation was done by lateral condensation technique with gutta pearch size 35 taper 6%, and AH plus in the same visit, and using gutta pearch size 25 taper 2% as auxiliary cones with spreader size 25. samples were unintentionally split into two investigational groups concurring to the re-treatment method used (n = 15). Group I: Reciproc system, and Group II: ProTaper Universal re-treatment. Cone beam (CBCT) was used to evaluate the gutta percha removal in both groups. Results: little left guttapercha after the wastage of Reciproc kit (0.169mm 3) afterwards the Pro Taper kit(1.459 mm 3). There were little left gutta percha after the use of the Reciproc system (The rate of decrease was 96.82 %) followed by the ProTaper Universal re-treatment kit (The rate of decrease was 76.17 %). Conclusions: Reciproc was more effective than Protaper Universal kit in the elimination of resin sealers like epoxy based sealers and the guttapercha through re-treatment.

Research paper thumbnail of Post-operative Pain after Different Root Canal Irrigant Activation Methods in Patients with Acute Apical Periodontitis (Randomized Clinical Trial)

Open Access Macedonian Journal of Medical Sciences

Objective To evaluate the degree of postoperative pain in patients with necrotic teeth with sympt... more Objective To evaluate the degree of postoperative pain in patients with necrotic teeth with symptomatic apical periodontitis after applying ultrasonic irrigation or manual dynamic agitation. Methods Seventy-eight patients diagnosed with necrotic mandibular first molar with symptomatic apical periodontitis were randomly allocated into 1 of 3 separate groups (n=26); Manual Dynamic Agitation group, Ultra X group, or NaviTip group (control). After a single-visit root canal treatment and a specific method of agitation, depending on each group, the patients were given a questionnaire on which they would mark the degree of pain in a scale from 0 to 10 at 6, 12, 24, 48, 72 hours and 7 days post-operative. Data were statistically analyzed with a significance level of P ≤ 0.05. Results Final irrigation protocol including Ultrasonic agitation and NaviTip (control) groups showed significantly lower values of pain than the MDA group. There was a reduction in pain values by time in all groups. Co...

Research paper thumbnail of Postoperative Pain After Different Root Canal Irrigant Activation Postoperative Pain After Different Root Canal Irrigant Activation Methods; (Randomized Clinical Trial) Methods; (Randomized Clinical Trial)

future dental journal, 2021

Objective: This study was designated to evaluate postoperative pain in irreversible symptomatic t... more Objective: This study was designated to evaluate postoperative pain in irreversible symptomatic teeth after different irrigation activation methods using visual analogue scale. Materials and Methods:78 Patients having symptomatic irreversible pulpitis in mandibular first molar (vital pulp) with no periapical involvement were involved in the study. Cases were classified into three groups according to the the final irrigation agitation method used, twenty-six patients each group (n=26). Group A: Root canals were irrigated using NaOCl2* 2.6% with NaviTip (31-gauge 27mm) with double side port irrigator tip (SVN). Group B: Root canals were irrigated using 2.6% NaOCl with manual dynamic agitation using master cone for 60 seconds. Group C: Root canals were irrigated using 2.6% NaOCl with mechanical agitation using ultrasonic device ultra-x for 60 seconds. Postoperative pain was evaluated after 6,12,24, 48, and 72 hours and 1 week. Data were explored for normality using Kolmogorov-Smirnov a...

Research paper thumbnail of Assessment of marginal adaptation of AH plus versus Total fill BC root canal sealers with two different obturation techniques using SEM ( An invitro study )

Egyptian Dental Journal

Aim: This in vitro study assessed and compared two different root canal sealers with two differen... more Aim: This in vitro study assessed and compared two different root canal sealers with two different obturation techniques in terms of marginal adaptation using SEM Materials and Methods: Sixty extracted single-rooted lower premolar teeth with closed apices were collected. samples were then de-coronated, and chemo-mechanical preparation were performed. The samples were then equally divided into four main groups (n = 15) according to the root canal sealer and the obturation technique used. Group A: teeth were obturated by cold lateral condensation technique with AH-plus sealer. Group B: teeth were obturated by single cone obturation technique with AH Plus sealer. Group C: teeth were obturated by cold lateral condensation technique with Total fill BC root canal sealer. Group D: teeth were obturated by single cone obturation technique with Total fill BC root canal sealer. Specimens were then transversely sectioned. Marginal adaptation to the dentin of root canals was assessed at coronal, middle & apical thirds with the aid of scanning electron microscopy (SEM). Then, marginal gap scores were assessed. Result: The data were statistically analyzed by Two-way ANOVA and Three-way ANOVA tests to test the interactions between different variables. The lowest marginal gap value was observed in Group C while the highest marginal gap value was observed in Group B. Coronal thirds revealed superior marginal adaptation in comparison with middle and apical thirds within the different groups. Conclusions: Within the limitation of this study, bio-ceramic sealers are reliable and promising root canal sealers that markedly improve the marginal adaptation. Moreover, obturation techniques also had an impact on the marginal adaptation of the root canal sealer to the dentin walls of the root canal. Cold lateral compaction technique is considered a reliable technique that improves the adaptation to the root canal dentin walls.

Research paper thumbnail of Immunohistochemical Analysis of Biodentine Versus MTA in Repair of Experimental Furcation Perforation

This study compared the Biodentine (BD) and MTA in repair of furcation perforation (FP) in a dog ... more This study compared the Biodentine (BD) and MTA in repair of furcation perforation (FP) in a dog model in terms of inflammatory cell count and new hard tissue formation through histological and immunohistochemical evaluations. Ninety six teeth in six adult mongrel dogs were divided according to the time of repair into two groups (48 teeth/3 dogs each); immediate and delayed repair of the induced FP. Each group was divided into three subgroups (16 teeth each) according to the evaluation periods; 1, 2, and 3 months. Each subgroup was further subdivided into four subdivisions according to the material used; MTA (6 teeth), Biodentine (6 teeth), negative control (2 teeth) and positive control (2 teeth). In experimental and positive control samples, the teeth were instrumented and obturated then, a FP was performed. The perforations were sealed according to the groups and subdivisions. Histopathology and immunohistochemical analysis using Osteonectin antibodies were performed for assessme...

Research paper thumbnail of Assessment of The pretreatment Efficiency with Dexamethasone VS Placebo on Post-operative Pain in teeth with Symptomatic Irreversible Pulpitis

Egyptian dental journal, Oct 1, 2022

Post-operative pain is very common, affecting from 2.5% to almost 60% of subjects that have under... more Post-operative pain is very common, affecting from 2.5% to almost 60% of subjects that have undergone endodontic treatments (1) , and it shows a tendency to increase between 6 and 12 h after treatment, reaching a prevalence of about 40% in 24 h and falling to 11% one week after treatment.

Research paper thumbnail of Different management of non vital Permanent Anterior Teeth with Open Apex

Egyptian dental journal, Oct 1, 2022

Aim In patients having non vital anterior teeth with open apex and periapical abscess. This study... more Aim In patients having non vital anterior teeth with open apex and periapical abscess. This study was done to find whether or not the revascularization is more effective than MTA apexification in the following: 1. change in length of the root measured in mm. 2. change of dentin thickness: measured in millimeters. 3. closure of the apex: measured in millimeters Materials and Methods: twenty two patients suffering from non vital upper incisors with open apices were randomly assigned into two equal groups with 11 patients each. One group was treated by regeneration and the other by MTA apexification. Cases were assessed: clinically assessing swelling presence. Radiographically by digital radiography and parallel technique for more standardized results that allow accurate measurements of changes in root length, width of dentin, and apical diameter. Results: Results showed that there was no statistically significant difference between the 2 groups in 1 month, after 3 months, after 6 months, after 9 months and after 12 months. Also showed that the healing outcome of radiolucency was greatest at the re-vascularization gp (90.9 %), followed be the apexification by mineral trioxide aggregate gp (63.6 %) which showed high percentage of success. Moreover, the healing outcome of the swelling is greater at the re-vascularization gp (81.8 %), followed by the apexification by mineral trioxide aggregate gp (72.7 %) which showed high percentage of success. It also showed that the percentage increase of root length and dentin width is greater in re-vascularization gp followed by the apexification by mineral trioxide aggregate gp. However differences between apexification group and re-vascularization group were statistically not significant. On the other hand, regarding the decrease in apical width, better results were shown in MTA apexification group than the regeneration group. Although differences between MTA apexification group and regeneration group were statistically not significant. Conclusion 1-Re-vascularization and apexification by mineral trioxide aggregate are considered successful techniques for the management of non-vital teeth with immature apex yet revascularization procedure is still preferable. 2-Regeneration has a higher rate of success concerning resolution of swelling and radiolucencies. 3-Regeneration is superior in adjusting crown-to-root ratio.

Research paper thumbnail of Page 1 EFFICACY OF INNOVATIVE SONIC SYSTEM IN DEBRIS REMOVAL AND ELIMINATION OF ENTEROCOCCUS FAECALIS IN INFECTED ROOT CANALS AN INVITRO STUDY

Research paper thumbnail of Comparison of the Antibacterial Effect and Smear Layer Removal Using Photon-Initiated Photoacoustic Streaming Aided Irrigation Versus a Conventional Irrigation in Single-Rooted Canals: An In Vitro Study

Photomedicine and Laser Surgery, 2013

Objective: The Er:YAG laser with photon-induced photoacoustic streaming (PIPS) technique was repo... more Objective: The Er:YAG laser with photon-induced photoacoustic streaming (PIPS) technique was reported to be effective in root canal disinfection. This study attempted to further investigate the antibacterial efficacy and smear layer removal ability of PIPS in comparison with conventional syringe irrigation in vitro. Methods: For antibacterial analysis, 48 single-rooted human teeth were prepared and inoculated with Enterococcus faecalis, and then divided into six groups of eight roots each. The colony-forming units (CFUs) per milliliter were determined after infection as the baseline. Then, the teeth were subjected to either PIPS plus 3% sodium hypochlorite (PIPS + NaOCl) or conventional syringe irrigation with 0.9% saline, 3% NaOCl, 17% ethylenediaminetetraacetic acid (EDTA), 0.2% chlorhexidine gluconate (CHX), or 3% NaOCl alternating with 17% EDTA. The reduction of CFUs in the individual group was determined. Additionally, scanning electron microscopy (SEM) examination of the canal walls for E. faecalis colonization was performed. For comparing the smear removal efficacy, another 48 single-rooted teeth, assigned to different groups as mentioned, were irrigated after mechanical instrumentation. The presence of a smear layer at different levels of the root canal was scored by SEM examination. Results: No significant differences were found in CFU reduction. No bacteria could be observed by SEM in the NaOCl, NaOCl + EDTA, and PIPS + NaOCl groups. The scores of smear layer of the NaOCl + EDTA and PIPS + NaOCl groups were significantly lower than those of the other groups in the coronal and middle third of the root canal. None of the methods can effectively remove smear layer in the apical third. Conclusions: PIPS system supplied with NaOCl and conventional syringe irrigation with NaOCl + EDTA are comparable in their ability to remove E. faecalis and smear layer in single-rooted canals.

Research paper thumbnail of Assessment The Propolis Effect Versus Calcium Hydroxide Effect as Intracanal Medications on Post-Operative Pain in Necrotic Teeth

Al-Azhar Assiut Dental Journal, 2021

Aim: to evaluate the postoperative pain of using Propolis versus Calcium hydroxide as intracanal ... more Aim: to evaluate the postoperative pain of using Propolis versus Calcium hydroxide as intracanal medications on post-operative pain in necrotic teeth. Subjects and Methods: 40 patients requiring endodontic treatment for single rooted teeth were enrolled in this analysis. The selected patients were separated into two groups with 20 patients each; Group І: Propolis paste. Group II: Ca (OH) 2 paste. The local anesthesia was administrated, and the working length determined by Root ZX apex locator, and then confirmed radiographically. The root canals were mechanically prepared in a crowndown approach using the "TF Adaptive" setting on Elements Motor. TF Adaptive Green ML1 file (Medium Large) and Yellow ML2 size 35 taper 4% until the file reaches wanted length. Intracanal medicaments of the two groups were placed inside the canals and left for a week. Then the obturation was done in the second visit. Postoperative pain was judged by visual analogue scale (VAS) after 24 hours, 48 hours and 72 hours. Results: The pain intensity showed that there was no statistically noteworthy difference concerning the two groups. Conclusions: Propolis is an effective and safe intracanal medication that can be used to reduce post-operative pain in necrotic teeth. Post-operative pain predominance at 24 hours was 40% and markedly decreased during the first 2 days after treatment, dropping to 10% or less after 7 days. Flare-up defined as a serious exacerbation of a pulpal or peri radicular pathosis with a subsequent development of pain

Research paper thumbnail of Comparing the efficacy of EndoSequence Root Repair Material, Biodentine, MTA angelus as retrograde filling in microbial leakage by Confocal Laser Scanning Microscope

Egyptian Dental Journal, 2021

This study aimed to compare the efficacy of EndoSequence ® Root Repair Material, Biodentine, and ... more This study aimed to compare the efficacy of EndoSequence ® Root Repair Material, Biodentine, and MTA angelus® retrograde materials in microbial leakage while confirmed with Confocal Laser Scanning Microscope (CLSM). Methods: 55 maxillary single rooted teeth were used in this study. The teeth were decoronated at 16mm. root canals was prepared by using ProTaper rotary Ni-Ti instruments. Obturation of the root canals was performed using a single-cone Pro-taper F3 size Gutta-percha along with the sealer (AH+ plus). The apical 3mm of the roots were resected. Root end cavity was prepared by ultrasonic retro-tips. Samples were divided into 5 groups with 11 samples each according to retrograde cavities filling. Group 1 (EndoSequence), Group 2 (Biodentine). Group 3 (MTA angelus), Group 4 (Positive control), and Group 5 (Negative control). Dual chamber apparatus was prepared to test the retrograde filling leakage. The E.F in CLSM with magnification of 20X to measures of E. Faecalis penetration depth through retrograde materials. Results: EndoSequence ® had superior outcome in microbial leakage along with penetration depth into the dentinal tubules with statistically significant difference when compared to Biodentine TM and MTA angelus ® (p ≤ 0.05). On other hand there was no any statistically significant difference between Biodentine TM and MTA angelus ® (p>0.05) with more leakage in dual chamber whereas bacterial penetration into the dentinal tubules in CLSM was measured. Conclusions: EndoSequence showed better results in both bacterial leakage and in bacterial penetration.

Research paper thumbnail of Cone-beam assessment of gutta percha removal by Reciproc versus ProTaper Universal re-treatment

Egyptian Dental Journal, 2021

This study intended: to assess use cone-beam analysis of gutta percha removal by Reciproc versus ... more This study intended: to assess use cone-beam analysis of gutta percha removal by Reciproc versus ProTaper Universal retreatment systems. Methods: Thirty extracted humanoid lower first molars were collected. The mesiobuccal canals had been mechanically prepared in a crown-down approach using the "TF Adaptive" setting on Elements Motor. TF Adaptive Green ML1 file (Medium Large) and Yellow ML2 size 35 taper 4% till the file gets to the effective length. the obturation was done by lateral condensation technique with gutta pearch size 35 taper 6%, and AH plus in the same visit, and using gutta pearch size 25 taper 2% as auxiliary cones with spreader size 25. samples were unintentionally split into two investigational groups concurring to the re-treatment method used (n = 15). Group I: Reciproc system, and Group II: ProTaper Universal re-treatment. Cone beam (CBCT) was used to evaluate the gutta percha removal in both groups. Results: little left guttapercha after the wastage of Reciproc kit (0.169mm 3) afterwards the Pro Taper kit(1.459 mm 3). There were little left gutta percha after the use of the Reciproc system (The rate of decrease was 96.82 %) followed by the ProTaper Universal re-treatment kit (The rate of decrease was 76.17 %). Conclusions: Reciproc was more effective than Protaper Universal kit in the elimination of resin sealers like epoxy based sealers and the guttapercha through re-treatment.

Research paper thumbnail of Post-operative Pain after Different Root Canal Irrigant Activation Methods in Patients with Acute Apical Periodontitis (Randomized Clinical Trial)

Open Access Macedonian Journal of Medical Sciences

Objective To evaluate the degree of postoperative pain in patients with necrotic teeth with sympt... more Objective To evaluate the degree of postoperative pain in patients with necrotic teeth with symptomatic apical periodontitis after applying ultrasonic irrigation or manual dynamic agitation. Methods Seventy-eight patients diagnosed with necrotic mandibular first molar with symptomatic apical periodontitis were randomly allocated into 1 of 3 separate groups (n=26); Manual Dynamic Agitation group, Ultra X group, or NaviTip group (control). After a single-visit root canal treatment and a specific method of agitation, depending on each group, the patients were given a questionnaire on which they would mark the degree of pain in a scale from 0 to 10 at 6, 12, 24, 48, 72 hours and 7 days post-operative. Data were statistically analyzed with a significance level of P ≤ 0.05. Results Final irrigation protocol including Ultrasonic agitation and NaviTip (control) groups showed significantly lower values of pain than the MDA group. There was a reduction in pain values by time in all groups. Co...

Research paper thumbnail of Postoperative Pain After Different Root Canal Irrigant Activation Postoperative Pain After Different Root Canal Irrigant Activation Methods; (Randomized Clinical Trial) Methods; (Randomized Clinical Trial)

future dental journal, 2021

Objective: This study was designated to evaluate postoperative pain in irreversible symptomatic t... more Objective: This study was designated to evaluate postoperative pain in irreversible symptomatic teeth after different irrigation activation methods using visual analogue scale. Materials and Methods:78 Patients having symptomatic irreversible pulpitis in mandibular first molar (vital pulp) with no periapical involvement were involved in the study. Cases were classified into three groups according to the the final irrigation agitation method used, twenty-six patients each group (n=26). Group A: Root canals were irrigated using NaOCl2* 2.6% with NaviTip (31-gauge 27mm) with double side port irrigator tip (SVN). Group B: Root canals were irrigated using 2.6% NaOCl with manual dynamic agitation using master cone for 60 seconds. Group C: Root canals were irrigated using 2.6% NaOCl with mechanical agitation using ultrasonic device ultra-x for 60 seconds. Postoperative pain was evaluated after 6,12,24, 48, and 72 hours and 1 week. Data were explored for normality using Kolmogorov-Smirnov a...

Research paper thumbnail of Assessment of marginal adaptation of AH plus versus Total fill BC root canal sealers with two different obturation techniques using SEM ( An invitro study )

Egyptian Dental Journal

Aim: This in vitro study assessed and compared two different root canal sealers with two differen... more Aim: This in vitro study assessed and compared two different root canal sealers with two different obturation techniques in terms of marginal adaptation using SEM Materials and Methods: Sixty extracted single-rooted lower premolar teeth with closed apices were collected. samples were then de-coronated, and chemo-mechanical preparation were performed. The samples were then equally divided into four main groups (n = 15) according to the root canal sealer and the obturation technique used. Group A: teeth were obturated by cold lateral condensation technique with AH-plus sealer. Group B: teeth were obturated by single cone obturation technique with AH Plus sealer. Group C: teeth were obturated by cold lateral condensation technique with Total fill BC root canal sealer. Group D: teeth were obturated by single cone obturation technique with Total fill BC root canal sealer. Specimens were then transversely sectioned. Marginal adaptation to the dentin of root canals was assessed at coronal, middle & apical thirds with the aid of scanning electron microscopy (SEM). Then, marginal gap scores were assessed. Result: The data were statistically analyzed by Two-way ANOVA and Three-way ANOVA tests to test the interactions between different variables. The lowest marginal gap value was observed in Group C while the highest marginal gap value was observed in Group B. Coronal thirds revealed superior marginal adaptation in comparison with middle and apical thirds within the different groups. Conclusions: Within the limitation of this study, bio-ceramic sealers are reliable and promising root canal sealers that markedly improve the marginal adaptation. Moreover, obturation techniques also had an impact on the marginal adaptation of the root canal sealer to the dentin walls of the root canal. Cold lateral compaction technique is considered a reliable technique that improves the adaptation to the root canal dentin walls.

Research paper thumbnail of Immunohistochemical Analysis of Biodentine Versus MTA in Repair of Experimental Furcation Perforation

This study compared the Biodentine (BD) and MTA in repair of furcation perforation (FP) in a dog ... more This study compared the Biodentine (BD) and MTA in repair of furcation perforation (FP) in a dog model in terms of inflammatory cell count and new hard tissue formation through histological and immunohistochemical evaluations. Ninety six teeth in six adult mongrel dogs were divided according to the time of repair into two groups (48 teeth/3 dogs each); immediate and delayed repair of the induced FP. Each group was divided into three subgroups (16 teeth each) according to the evaluation periods; 1, 2, and 3 months. Each subgroup was further subdivided into four subdivisions according to the material used; MTA (6 teeth), Biodentine (6 teeth), negative control (2 teeth) and positive control (2 teeth). In experimental and positive control samples, the teeth were instrumented and obturated then, a FP was performed. The perforations were sealed according to the groups and subdivisions. Histopathology and immunohistochemical analysis using Osteonectin antibodies were performed for assessme...