J. J. Patel, N. Shah, K. Janani, S. Mahalaxmi, Priya Porwal, Aishwarya D. Jain
The aim of the study was to assess the sealing efficacy of three dam seal materials. Ninety participants were enrolled after obtaining consent. After the placement of rubber dam (RD), a stream of air was applied at the interface area and visualized at ×6 magnification to identify sealing ability. Dam seal materials were divided into Group A: Liquid Dam, Group B: Kool-Dam, and Group C: OraSeal caulking putty substance. Leakage was assessed using self-designed criteria such as sealing ability, retention, ease of adaptability, and removal. The data were tabulated and analyzed using IBM SPSS 20 software. Kool-Dam (Group B) demonstrated superior effectiveness in controlling saliva seepage around the clamp and teeth (P = 0.039) compared to other groups. In addition, it was evident that Kool-Dam (Group B) had greater effectiveness as compared to Liquid Dam and OraSeal (Group C) with relation to the retention of dam seal material (P = 0.039). There was no statistically significant difference (P < 0.05) in the ease of adaptation or removal of dam seal material. This study highlights the importance of dam seal materials as an adjunct material to establish a tight seal over a RD placement. From the present study, it was evident that Kool-Dam exhibited superior performance over Liquid Dam and OraSeal dam seal material in terms of better sealing ability and retention of the dam seal materials.
这项研究旨在评估三种水坝密封材料的密封效果。 在征得同意后，90 名参与者参加了研究。放置橡胶坝（RD）后，在界面区域注入气流，并在 ×6 倍放大镜下观察，以确定密封能力。水坝密封材料分为 A 组液体坝、B 组：Kool-Dam 和 C 组：OraSeal 填缝腻子物质。渗漏情况采用自行设计的标准进行评估，如密封能力、保持力、适应性和清除的难易程度。数据使用 IBM SPSS 20 软件进行制表和分析。 与其他组相比，Kool-Dam（B 组）在控制夹钳和牙齿周围的唾液渗出方面表现出更高的有效性（P = 0.039）。此外，Kool-Dam（B 组）与 Liquid Dam 和 OraSeal（C 组）相比，在保持水坝密封材料方面显然更有效（P = 0.039）。在适应或去除水坝密封材料的难易程度方面，两者没有明显的统计学差异（P < 0.05）。 这项研究强调了坝体密封材料作为一种辅助材料，对在 RD 置位上建立严密密封的重要性。从本研究中可以明显看出，Kool-Dam 在密封能力和坝封材料的保留方面优于 Liquid Dam 和 OraSeal 坝封材料。
{"title":"Sealing efficacy of various rubber dam barrier materials used for isolation procedures: A randomized controlled trial","authors":"J. J. Patel, N. Shah, K. Janani, S. Mahalaxmi, Priya Porwal, Aishwarya D. Jain","doi":"10.4103/endo.endo_93_23","DOIUrl":"https://doi.org/10.4103/endo.endo_93_23","url":null,"abstract":"\u0000 \u0000 \u0000 The aim of the study was to assess the sealing efficacy of three dam seal materials.\u0000 \u0000 \u0000 \u0000 Ninety participants were enrolled after obtaining consent. After the placement of rubber dam (RD), a stream of air was applied at the interface area and visualized at ×6 magnification to identify sealing ability. Dam seal materials were divided into Group A: Liquid Dam, Group B: Kool-Dam, and Group C: OraSeal caulking putty substance. Leakage was assessed using self-designed criteria such as sealing ability, retention, ease of adaptability, and removal. The data were tabulated and analyzed using IBM SPSS 20 software.\u0000 \u0000 \u0000 \u0000 Kool-Dam (Group B) demonstrated superior effectiveness in controlling saliva seepage around the clamp and teeth (P = 0.039) compared to other groups. In addition, it was evident that Kool-Dam (Group B) had greater effectiveness as compared to Liquid Dam and OraSeal (Group C) with relation to the retention of dam seal material (P = 0.039). There was no statistically significant difference (P < 0.05) in the ease of adaptation or removal of dam seal material.\u0000 \u0000 \u0000 \u0000 This study highlights the importance of dam seal materials as an adjunct material to establish a tight seal over a RD placement. From the present study, it was evident that Kool-Dam exhibited superior performance over Liquid Dam and OraSeal dam seal material in terms of better sealing ability and retention of the dam seal materials.\u0000","PeriodicalId":11607,"journal":{"name":"Endodontology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141831003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Taruna Yadav, Shalini Garg, Anil Gupta, S. Joshi, S. Tandon, Nishima Nishima
The aim of the study was to know the clinical and radiographic outcomes of regenerative endodontic procedures of immature versus mature in young permanent incisors with apical periodontitis. Twenty non-vital, young permanent incisors with traumatic exposure between the age of 7 and 13 years were taken. Patients were divided into two groups: Group I – immature (number of teeth included = 10) and Group II – mature (number of teeth included = 10). The procedure was performed by the blood clot method as a scaffold. Biodentine (about 2–3 mm) was placed as a capping material at the cementoenamel junction. Evaluation was based on the clinical (pain, sinus, tender on percussion, swelling, mobility, intact restoration) and radiographical (Nolla stage, thickening of walls, lamina dura continuity, calcification of pulp chamber and canal, periapical healing, PAI score) parameters. All 19 teeth were clinically asymptomatic after the 12-month follow-up. Radiographically, the percentage of continuous root development (in the immature group) was 100% at 12 months (P = 0.000**). Radiography revealed a reduction in the PAI scores at 12 months in the immature and mature groups. None of the treated teeth responded to the cold test after a 12-month follow-up. One patient did not come for intervention in the mature group. All the statistical tests (Chi-square, Mann–Whitney U-test, and Fisher’s exact test) were performed at a 5% significance level. Outcomes did not differ significantly between immature and mature groups.
{"title":"Comparative evaluation of the clinical and radiographic success of regenerative endodontic procedures in immature versus mature permanent incisors with apical periodontitis: A prospective observational study","authors":"Taruna Yadav, Shalini Garg, Anil Gupta, S. Joshi, S. Tandon, Nishima Nishima","doi":"10.4103/endo.endo_51_23","DOIUrl":"https://doi.org/10.4103/endo.endo_51_23","url":null,"abstract":"\u0000 \u0000 \u0000 The aim of the study was to know the clinical and radiographic outcomes of regenerative endodontic procedures of immature versus mature in young permanent incisors with apical periodontitis.\u0000 \u0000 \u0000 \u0000 Twenty non-vital, young permanent incisors with traumatic exposure between the age of 7 and 13 years were taken. Patients were divided into two groups: Group I – immature (number of teeth included = 10) and Group II – mature (number of teeth included = 10). The procedure was performed by the blood clot method as a scaffold. Biodentine (about 2–3 mm) was placed as a capping material at the cementoenamel junction. Evaluation was based on the clinical (pain, sinus, tender on percussion, swelling, mobility, intact restoration) and radiographical (Nolla stage, thickening of walls, lamina dura continuity, calcification of pulp chamber and canal, periapical healing, PAI score) parameters.\u0000 \u0000 \u0000 \u0000 All 19 teeth were clinically asymptomatic after the 12-month follow-up. Radiographically, the percentage of continuous root development (in the immature group) was 100% at 12 months (P = 0.000**). Radiography revealed a reduction in the PAI scores at 12 months in the immature and mature groups. None of the treated teeth responded to the cold test after a 12-month follow-up. One patient did not come for intervention in the mature group. All the statistical tests (Chi-square, Mann–Whitney U-test, and Fisher’s exact test) were performed at a 5% significance level.\u0000 \u0000 \u0000 \u0000 Outcomes did not differ significantly between immature and mature groups.\u0000","PeriodicalId":11607,"journal":{"name":"Endodontology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141828028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-23DOI: 10.4103/endo.endo_180_23
Srishti Grover, K. Mala, Srinivas Mutalik, K. Ginjupalli, S. Natarajan
This study aimed to evaluate and compare the effect of using calcium hydroxide (CH) loaded with nanochitosan and nanographene on radicular dentin fracture resistance. A total of 40 mandibular premolar root canals were instrumented with the ProTaper rotary system. The fracture resistance of radicular dentin was measured with the universal testing machine, following which intracanal medicament was placed for 10 days. CH alone and CH mixed with nanoparticles of chitosan and graphene were used. Not using any intracanal medicament was used as the control. A one-way ANOVA, followed by the post hoc Tukey’s test, was used to compare the results of different groups. The highest mean for the force at compressive stress was seen in the control group, and the least was recorded by CH. Intergroup comparison for Young’s modulus showed a statistically significant difference (P < 0.05) between the control group and CH (P = 0.002); CH and chitosan + CH (P = 0.003) on post hoc analysis. Incorporation of chitosan and graphene nanoparticles in CH when used as intracanal medicament improves the modulus of elasticity and compressive strength of radicular dentin, which in turn improves dentin elasticity and fracture toughness when compared to CH alone.
{"title":"Evaluation of fracture resistance of radicular dentin treated with nanochitosan-loaded calcium hydroxide and nanographene-loaded calcium hydroxide, when used as intracanal medicament: An in vitro study","authors":"Srishti Grover, K. Mala, Srinivas Mutalik, K. Ginjupalli, S. Natarajan","doi":"10.4103/endo.endo_180_23","DOIUrl":"https://doi.org/10.4103/endo.endo_180_23","url":null,"abstract":"\u0000 \u0000 \u0000 This study aimed to evaluate and compare the effect of using calcium hydroxide (CH) loaded with nanochitosan and nanographene on radicular dentin fracture resistance.\u0000 \u0000 \u0000 \u0000 A total of 40 mandibular premolar root canals were instrumented with the ProTaper rotary system. The fracture resistance of radicular dentin was measured with the universal testing machine, following which intracanal medicament was placed for 10 days. CH alone and CH mixed with nanoparticles of chitosan and graphene were used. Not using any intracanal medicament was used as the control. A one-way ANOVA, followed by the post hoc Tukey’s test, was used to compare the results of different groups.\u0000 \u0000 \u0000 \u0000 The highest mean for the force at compressive stress was seen in the control group, and the least was recorded by CH. Intergroup comparison for Young’s modulus showed a statistically significant difference (P < 0.05) between the control group and CH (P = 0.002); CH and chitosan + CH (P = 0.003) on post hoc analysis.\u0000 \u0000 \u0000 \u0000 Incorporation of chitosan and graphene nanoparticles in CH when used as intracanal medicament improves the modulus of elasticity and compressive strength of radicular dentin, which in turn improves dentin elasticity and fracture toughness when compared to CH alone.\u0000","PeriodicalId":11607,"journal":{"name":"Endodontology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141105818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
To evaluate and compare the fracture resistance of endodontically treated maxillary teeth using the same material as indirect and direct composite onlays and their modes of fracture. Ninety maxillary premolars were divided into six groups (n = 15) out of which 15 teeth were kept intact (negative control, Group 1). In the remaining 75 teeth, endodontic treatment was done and standardized mesio-occlusal-distal cavities were prepared. Fifteen teeth were kept unrestored (positive control, Group 2). The rest of the teeth were divided according to the type of restorations and the restorative material; Group 3: Ceram X sphereTEC™ one direct composite onlay, Group 4: Ceram X sphereTEC™ one indirect composite onlay, Group 5: Filtek Z 350 XT direct composite onlay, and Group 6: Filtek Z 350 XT indirect composite onlay. All the specimens were subjected to thermocycling and cyclic loading. The fracture resistance test was performed with the help of a universal testing machine and their modes of fracture were evaluated. Mean fracture resistance values in the decreasing order are as: 1487.33N for Group 6, 1104.57N for Group 4, 933.87N for Group 1, 799.13N for Group 5, and 688.73N for Group 3, 265.23N for Group 2. Mean fracture resistance of Groups 6 and 4 was found to be significantly higher than Groups 1, 2, 3, and 5. Furthermore, there was a significant difference between Groups 1 and 3. Groups 1, 3, 4, 5, and 6 showed more number of favorable/restorable fractures, whereas Group 2 showed more unfavorable/unrestorable fracture. The indirect technique of fabrication of onlays improved the fracture resistance of endodontically treated maxillary premolars.
{"title":"Fracture resistance of endodontically treated maxillary premolars using indirect and direct composite onlays: A comparative study","authors":"Jyoti Lamba, Meenu Singla, Palak Wahi, Prashant Bhasin, Monika Tandan, H. Kumar","doi":"10.4103/endo.endo_114_23","DOIUrl":"https://doi.org/10.4103/endo.endo_114_23","url":null,"abstract":"\u0000 \u0000 \u0000 To evaluate and compare the fracture resistance of endodontically treated maxillary teeth using the same material as indirect and direct composite onlays and their modes of fracture.\u0000 \u0000 \u0000 \u0000 Ninety maxillary premolars were divided into six groups (n = 15) out of which 15 teeth were kept intact (negative control, Group 1). In the remaining 75 teeth, endodontic treatment was done and standardized mesio-occlusal-distal cavities were prepared. Fifteen teeth were kept unrestored (positive control, Group 2). The rest of the teeth were divided according to the type of restorations and the restorative material; Group 3: Ceram X sphereTEC™ one direct composite onlay, Group 4: Ceram X sphereTEC™ one indirect composite onlay, Group 5: Filtek Z 350 XT direct composite onlay, and Group 6: Filtek Z 350 XT indirect composite onlay. All the specimens were subjected to thermocycling and cyclic loading. The fracture resistance test was performed with the help of a universal testing machine and their modes of fracture were evaluated.\u0000 \u0000 \u0000 \u0000 Mean fracture resistance values in the decreasing order are as: 1487.33N for Group 6, 1104.57N for Group 4, 933.87N for Group 1, 799.13N for Group 5, and 688.73N for Group 3, 265.23N for Group 2. Mean fracture resistance of Groups 6 and 4 was found to be significantly higher than Groups 1, 2, 3, and 5. Furthermore, there was a significant difference between Groups 1 and 3. Groups 1, 3, 4, 5, and 6 showed more number of favorable/restorable fractures, whereas Group 2 showed more unfavorable/unrestorable fracture.\u0000 \u0000 \u0000 \u0000 The indirect technique of fabrication of onlays improved the fracture resistance of endodontically treated maxillary premolars.\u0000","PeriodicalId":11607,"journal":{"name":"Endodontology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140978723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-12DOI: 10.4103/endo.endo_130_23
Manish Sharma, Tony Mathew, Gurmeen Kaur
The present study examined the effect of bonding the pericervical dentin using resin-modified glass-ionomer cement (RMGIC), nanohybrid composite (Endure Nano), and Biodentine on the fracture resistance of root-filled mandibular premolars. Twenty-four human single-rooted mandibular premolars were decoronated, cleaned, and shaped with ProTaper Universal till size F3. The roots were obturated with gutta-percha using a single-cone technique. The teeth were randomly grouped into four groups of n = 6 each. After removing the 3 mm coronal gutta-percha in Groups I, II, and III, the intra-orifice barriers of RMGIC, nanohybrid composite (Endure Nano), and Biodentine were placed, respectively. Group IV served as the control. The fracture resistance of the specimens was analyzed using the universal testing machine. The derived data were statistically evaluated using one-way ANOVA and post hoc Tukey’s honestly significant difference test. A significantly high fracture strength was exhibited by specimens of Group I, followed by Groups II and III, respectively. The lowest fracture strength was shown by the control group. Within the limitation of the present study, the fracture resistance of an endodontically treated tooth was significantly influenced by the type of intra-orifice barrier.
{"title":"Effect of bonding pericervical dentin with reinforcing materials on strength of root-filled mandibular single-canal premolars: An in vitro study","authors":"Manish Sharma, Tony Mathew, Gurmeen Kaur","doi":"10.4103/endo.endo_130_23","DOIUrl":"https://doi.org/10.4103/endo.endo_130_23","url":null,"abstract":"\u0000 \u0000 \u0000 The present study examined the effect of bonding the pericervical dentin using resin-modified glass-ionomer cement (RMGIC), nanohybrid composite (Endure Nano), and Biodentine on the fracture resistance of root-filled mandibular premolars.\u0000 \u0000 \u0000 \u0000 Twenty-four human single-rooted mandibular premolars were decoronated, cleaned, and shaped with ProTaper Universal till size F3. The roots were obturated with gutta-percha using a single-cone technique. The teeth were randomly grouped into four groups of n = 6 each. After removing the 3 mm coronal gutta-percha in Groups I, II, and III, the intra-orifice barriers of RMGIC, nanohybrid composite (Endure Nano), and Biodentine were placed, respectively. Group IV served as the control. The fracture resistance of the specimens was analyzed using the universal testing machine. The derived data were statistically evaluated using one-way ANOVA and post hoc Tukey’s honestly significant difference test.\u0000 \u0000 \u0000 \u0000 A significantly high fracture strength was exhibited by specimens of Group I, followed by Groups II and III, respectively. The lowest fracture strength was shown by the control group.\u0000 \u0000 \u0000 \u0000 Within the limitation of the present study, the fracture resistance of an endodontically treated tooth was significantly influenced by the type of intra-orifice barrier.\u0000","PeriodicalId":11607,"journal":{"name":"Endodontology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140709736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-12DOI: 10.4103/endo.endo_231_22
Sowmya Mudunuri, K. Varma, G. Sajjan, R. Satish, Sai Dinesh Jetty, S. Indukuri
A new technique of fiber reinforcement (horizontal + base fiber [HBF]) in the restoration of endodontically treated teeth (ETT) with composite resin was proposed. This study aims to compare three different types of fiber orientation techniques on fracture resistance of ETT. Sixty intact extracted human maxillary premolars were assigned to five groups (n = 12). Group 1 intact teeth (control). The teeth in Groups 2–5 received endodontic treatment and a MOD cavity preparation and restored with composite resin with polyethylene fiber at different positions. Group 2: No fiber group (NF), Group 3: Occlusal fiber group (OF), Group 4: Horizontal fiber group (HF), and Group 5: HBF group. After thermocycling, the specimens were loaded using a universal testing machine until fracture and the fracture patterns were analyzed. The data were analyzed statistically using analysis of variance with Tukey’s post hoc test (fracture load) and Chi-square test (fracture patterns). Fiber-reinforced groups (OF, HF, HBF) showed significantly higher fracture resistance compared to NF group (P < 0.05). No significant differences in fracture resistance were observed between (a) fiber-reinforced groups (OF, HF, HBF) and intact teeth (P > 0.05) (b) amongst the fiber-reinforced groups (OF, HF, HBF) (P > 0.05). With regard to fracture patterns, no significant differences were observed between the study groups (P > 0.05). Restoring ETT with different techniques of fiber reinforcement resulted in the improvement of the fracture resistance comparable to that of intact teeth. The newly proposed technique of fiber insertion might be considered as an alternative to earlier techniques for the reinforcement of ETT.
在用复合树脂修复牙髓治疗过的牙齿（ETT）时，提出了一种新的纤维加固技术（水平+基底纤维 [HBF]）。 本研究旨在比较三种不同类型的纤维定向技术对 ETT 抗折性的影响。 将 60 颗完整拔出的人类上颌前臼齿分为五组（n = 12）。第 1 组牙齿完好无损（对照组）。第 2-5 组的牙齿接受了牙髓治疗和 MOD 牙洞预备，并用复合树脂修复了不同位置的聚乙烯纤维。第 2 组：无纤维组（NF），第 3 组：咬合纤维组（OF），第 4 组：水平纤维组（HF），第 5 组：HBF 组。热循环后，使用万能试验机加载试样直至断裂，并对断裂形态进行分析。 数据采用方差分析和 Tukey's post hoc 检验（断裂荷载）以及 Chi-square 检验（断裂形态）进行统计分析。 与 NF 组相比，纤维增强组（OF、HF、HBF）的抗断裂性明显更高（P < 0.05）。(a) 纤维增强组（OF、HF、HBF）与完整牙齿之间（P > 0.05）（b）纤维增强组（OF、HF、HBF）之间（P > 0.05）的抗折性无明显差异。在断裂模式方面，各研究组之间未发现明显差异（P > 0.05）。 使用不同的纤维加固技术修复 ETT 后，其抗折性的改善程度与完整牙齿相当。新提出的纤维插入技术可作为早期 ETT 加固技术的替代技术。
{"title":"Comparative evaluation of three types of fiber orientation techniques on fracture resistance of endodontically treated premolars restored with composite resin: An in vitro study","authors":"Sowmya Mudunuri, K. Varma, G. Sajjan, R. Satish, Sai Dinesh Jetty, S. Indukuri","doi":"10.4103/endo.endo_231_22","DOIUrl":"https://doi.org/10.4103/endo.endo_231_22","url":null,"abstract":"\u0000 \u0000 \u0000 A new technique of fiber reinforcement (horizontal + base fiber [HBF]) in the restoration of endodontically treated teeth (ETT) with composite resin was proposed.\u0000 \u0000 \u0000 \u0000 This study aims to compare three different types of fiber orientation techniques on fracture resistance of ETT.\u0000 \u0000 \u0000 \u0000 Sixty intact extracted human maxillary premolars were assigned to five groups (n = 12). Group 1 intact teeth (control). The teeth in Groups 2–5 received endodontic treatment and a MOD cavity preparation and restored with composite resin with polyethylene fiber at different positions. Group 2: No fiber group (NF), Group 3: Occlusal fiber group (OF), Group 4: Horizontal fiber group (HF), and Group 5: HBF group. After thermocycling, the specimens were loaded using a universal testing machine until fracture and the fracture patterns were analyzed.\u0000 \u0000 \u0000 \u0000 The data were analyzed statistically using analysis of variance with Tukey’s post hoc test (fracture load) and Chi-square test (fracture patterns).\u0000 \u0000 \u0000 \u0000 Fiber-reinforced groups (OF, HF, HBF) showed significantly higher fracture resistance compared to NF group (P < 0.05). No significant differences in fracture resistance were observed between (a) fiber-reinforced groups (OF, HF, HBF) and intact teeth (P > 0.05) (b) amongst the fiber-reinforced groups (OF, HF, HBF) (P > 0.05). With regard to fracture patterns, no significant differences were observed between the study groups (P > 0.05).\u0000 \u0000 \u0000 \u0000 Restoring ETT with different techniques of fiber reinforcement resulted in the improvement of the fracture resistance comparable to that of intact teeth. The newly proposed technique of fiber insertion might be considered as an alternative to earlier techniques for the reinforcement of ETT.\u0000","PeriodicalId":11607,"journal":{"name":"Endodontology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140710888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-05DOI: 10.4103/endo.endo_167_23
A. Palekar, Piyush Mantri, Minal Awinashe, B. Biradar, Mukund Singh
To assess and compare the impact of modified triple antibiotic paste (MTAP) and calcium hydroxide (CH) as intracanal medicament on microhardness (MH) of root dentin. Twenty single-rooted, noncarious, single-canaled permanent teeth were selected. They were decoronated and vertically sectioned into two equal parts to acquire 40 samples. These samples were submerged in acrylic blocks with their pulpal surfaces exposed. These samples were enclosed within acrylic blocks, with their pulp surfaces visible. They were then randomly allocated into four groups (n = 10). MH was measured at three steps: initial measurement of MH before irrigation with 3% sodium hypochlorite (NaOCl); after irrigation with 3% NaOCl; and after interaction with medications (MTAP or CH pastes at an interval of 7 days or 30 days). The degree of reduction in MH percentage was computed. The collected data underwent statistical examination at a significance threshold of P < 0.05. All procedures led to a noteworthy decline in MH values when compared to both prior and initial measurement. The highest reduction in MH was seen after irrigation with 3% NaOCl (P < 0.05). CH showed a greater reduction in MH as compared to MTAP (P < 0.05). More reduction in MH was seen after 30 days as compared to that after 7 days for both CH and MTAP (P < 0.05). Use of intracanal irrigants and medicaments reduces the MH of root dentin. Lesser reduction in MH was observed when utilization of MTAP as compared to CH.
{"title":"Comparative evaluation of effect of modified triple antibiotic paste and calcium hydroxide as intracanal medicament on microhardness of root dentin: An in vitro study","authors":"A. Palekar, Piyush Mantri, Minal Awinashe, B. Biradar, Mukund Singh","doi":"10.4103/endo.endo_167_23","DOIUrl":"https://doi.org/10.4103/endo.endo_167_23","url":null,"abstract":"\u0000 \u0000 \u0000 To assess and compare the impact of modified triple antibiotic paste (MTAP) and calcium hydroxide (CH) as intracanal medicament on microhardness (MH) of root dentin.\u0000 \u0000 \u0000 \u0000 Twenty single-rooted, noncarious, single-canaled permanent teeth were selected. They were decoronated and vertically sectioned into two equal parts to acquire 40 samples. These samples were submerged in acrylic blocks with their pulpal surfaces exposed. These samples were enclosed within acrylic blocks, with their pulp surfaces visible. They were then randomly allocated into four groups (n = 10). MH was measured at three steps: initial measurement of MH before irrigation with 3% sodium hypochlorite (NaOCl); after irrigation with 3% NaOCl; and after interaction with medications (MTAP or CH pastes at an interval of 7 days or 30 days). The degree of reduction in MH percentage was computed. The collected data underwent statistical examination at a significance threshold of P < 0.05.\u0000 \u0000 \u0000 \u0000 All procedures led to a noteworthy decline in MH values when compared to both prior and initial measurement. The highest reduction in MH was seen after irrigation with 3% NaOCl (P < 0.05). CH showed a greater reduction in MH as compared to MTAP (P < 0.05). More reduction in MH was seen after 30 days as compared to that after 7 days for both CH and MTAP (P < 0.05).\u0000 \u0000 \u0000 \u0000 Use of intracanal irrigants and medicaments reduces the MH of root dentin. Lesser reduction in MH was observed when utilization of MTAP as compared to CH.\u0000","PeriodicalId":11607,"journal":{"name":"Endodontology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140739518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Aashna Sunil Sahetia, Divya Rupesh Jain, Padmaja Panditrao Sirsat, M. Gulve, Swapnil Kolhe, Surbhi P. Patel
The aim of this in vitro study was to evaluate and compare the effect of preheating on microhardness and depth of cure of three bulk-fill composite resins. Three bulk-fill composite resins were used; Group I: Filtek Bulk Fill, Group II: Beautifil Bulk Restorative and Group III: Tetric N Ceram Bulk Fill. Further each group was divided into two subgroups, Sub Group A: Discs were prepared using nonheated composite, Sub Group B: Discs were prepared using preheated composite. A total of 60 disc shaped specimens were prepared and microhardness (Vickers Microhardness Number [VHN]) of the top and bottom surfaces of the disc specimens were measured by Vickers microhardness tester. The ratio of the bottom surface VHN to the top surface VHN was used to calculate the depth of cure. Preheated groups showed higher VHN values as compared to nonheated groups. Group II showed higher VHN value as compared to Group I in both subgroups. Group III showed the least VHN values in both subgroups. VHN values were maximum on top surfaces and minimum on the bottom surfaces for all the groups. It was found that the highest depth of cure was 0.71 while lowest depth of cure was 0.62. Preheating resulted in higher VHN values compared to nonheating. Top surface VHN values were better as compared to bottom surface VHN values for all groups. The depth of cure showed satisfactory results for all groups.
{"title":"Preheating effect on microhardness and depth of cure of three bulk-fill composite resins: An in vitro study","authors":"Aashna Sunil Sahetia, Divya Rupesh Jain, Padmaja Panditrao Sirsat, M. Gulve, Swapnil Kolhe, Surbhi P. Patel","doi":"10.4103/endo.endo_56_23","DOIUrl":"https://doi.org/10.4103/endo.endo_56_23","url":null,"abstract":"\u0000 \u0000 \u0000 The aim of this in vitro study was to evaluate and compare the effect of preheating on microhardness and depth of cure of three bulk-fill composite resins.\u0000 \u0000 \u0000 \u0000 Three bulk-fill composite resins were used; Group I: Filtek Bulk Fill, Group II: Beautifil Bulk Restorative and Group III: Tetric N Ceram Bulk Fill. Further each group was divided into two subgroups, Sub Group A: Discs were prepared using nonheated composite, Sub Group B: Discs were prepared using preheated composite. A total of 60 disc shaped specimens were prepared and microhardness (Vickers Microhardness Number [VHN]) of the top and bottom surfaces of the disc specimens were measured by Vickers microhardness tester. The ratio of the bottom surface VHN to the top surface VHN was used to calculate the depth of cure.\u0000 \u0000 \u0000 \u0000 Preheated groups showed higher VHN values as compared to nonheated groups. Group II showed higher VHN value as compared to Group I in both subgroups. Group III showed the least VHN values in both subgroups. VHN values were maximum on top surfaces and minimum on the bottom surfaces for all the groups. It was found that the highest depth of cure was 0.71 while lowest depth of cure was 0.62.\u0000 \u0000 \u0000 \u0000 Preheating resulted in higher VHN values compared to nonheating. Top surface VHN values were better as compared to bottom surface VHN values for all groups. The depth of cure showed satisfactory results for all groups.\u0000","PeriodicalId":11607,"journal":{"name":"Endodontology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140750087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-03DOI: 10.4103/endo.endo_142_23
Reetika Singh, Sachin Gupta, V. Nikhil, S. Jaiswal
This study aimed to investigate the selection of postendodontic restorative materials and techniques for both anterior and posterior teeth by Indian endodontists and nonendodontists, along with other influencing factors. A total of 700 dentists, including both endodontists and nonendodontists, participated in this survey. The survey consisted of 22 questions and was administered through Google Forms and various online platforms. Participants were required to provide informed consent before completing the questionnaire. The majority of endodontists (80.3%) and nonendodontists (72.6%) revealed a preference for resin composite as the primary restorative material for postendodontic restoration. Approximately half of the endodontists (50.0%) and 67.8% of nonendodontists typically waited for 1 week before proceeding with postendodontic restoration, with the presence of periapical lesions being the most common reason for this delay. Both endodontists (81.7%) and nonendodontists (73.4%) considered the amount of remaining tooth structure as the most crucial factor in guiding their choice of postendodontic restoration. The majority of both endodontists (75.3%) and nonendodontists (81.4%) preferred full-coverage crowns as the definitive postendodontic restoration. Furthermore, endodontists (95.4%) and nonendodontists (85.5%) reported that they only performed post and core restoration when necessary, and 84.7% of endodontists and 76.5% of nonendodontists believed that post and core restorations aided in supporting crowns. The outcomes of the survey imply that while endodontists in India demonstrate a more comprehensive comprehension of postendodontic restoration concepts, nonendodontists also exhibit a sufficient level of understanding essential for achieving clinical success.
{"title":"Exploring dentists’ preferences for post-endodontic restorations in India: A questionnaire based study","authors":"Reetika Singh, Sachin Gupta, V. Nikhil, S. Jaiswal","doi":"10.4103/endo.endo_142_23","DOIUrl":"https://doi.org/10.4103/endo.endo_142_23","url":null,"abstract":"\u0000 \u0000 \u0000 This study aimed to investigate the selection of postendodontic restorative materials and techniques for both anterior and posterior teeth by Indian endodontists and nonendodontists, along with other influencing factors.\u0000 \u0000 \u0000 \u0000 A total of 700 dentists, including both endodontists and nonendodontists, participated in this survey. The survey consisted of 22 questions and was administered through Google Forms and various online platforms. Participants were required to provide informed consent before completing the questionnaire.\u0000 \u0000 \u0000 \u0000 The majority of endodontists (80.3%) and nonendodontists (72.6%) revealed a preference for resin composite as the primary restorative material for postendodontic restoration. Approximately half of the endodontists (50.0%) and 67.8% of nonendodontists typically waited for 1 week before proceeding with postendodontic restoration, with the presence of periapical lesions being the most common reason for this delay. Both endodontists (81.7%) and nonendodontists (73.4%) considered the amount of remaining tooth structure as the most crucial factor in guiding their choice of postendodontic restoration. The majority of both endodontists (75.3%) and nonendodontists (81.4%) preferred full-coverage crowns as the definitive postendodontic restoration. Furthermore, endodontists (95.4%) and nonendodontists (85.5%) reported that they only performed post and core restoration when necessary, and 84.7% of endodontists and 76.5% of nonendodontists believed that post and core restorations aided in supporting crowns.\u0000 \u0000 \u0000 \u0000 The outcomes of the survey imply that while endodontists in India demonstrate a more comprehensive comprehension of postendodontic restoration concepts, nonendodontists also exhibit a sufficient level of understanding essential for achieving clinical success.\u0000","PeriodicalId":11607,"journal":{"name":"Endodontology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140750473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-03DOI: 10.4103/endo.endo_128_23
N. Al-Sabawi, Sawsan Al-jubori
Endodontic sealers with antimicrobial impact are considered relevant to prevent re-infection and ensure healing of damaged periapical tissue. Hence, this study aimed to assist the antimicrobial effect of newly developed nano-tricalcium silicate-58s bioactive glass (BG)-based endodontic sealer (C3S-BG-P), and compare its results with Nishika Canal Sealer BG and BioRoot™ root canal sealer (RCS). The antimicrobial impact of endodontic sealers was evaluated by both agar diffusion test (ADT) and direct contact test (DCT) against Enterococcus faecalis and Candida albicans. In ADT, the diameter of inhibition zones was measured after 1, 2, and 3 days of incubation using Digimizer software program. In DCT, the sealers were allowed to set for 1, 7, and 14 days and then exposed to the microbial suspension for 24 h. The colony-forming unit was counted using ImageJ software program. The data were analyzed with ANOVA and Tukey’s tests. In ADT, all the tested sealers showed antimicrobial effect after 3 days, with no significant difference after 1 day, but the impact of C3S-BG-P and Nishika significantly higher than that of BioRoot after 2 and 3 days. In DCT, C3S-BG-P and Nishika had an antimicrobial effect against both isolates even after 14 days of their setting, whereas BioRoot had an effect for 7 days of its setting and lost its impact after 14 days. C3S-BG-P explored antimicrobial impact superior to that of BioRoot and nearly comparable to that of Nishika against E. faecalis and C. albicans, which last even after 14 days of its setting.
{"title":"Antimicrobial efficacy of newly prepared nano-tricalcium silicate-58s bioactive glass-based endodontic sealer","authors":"N. Al-Sabawi, Sawsan Al-jubori","doi":"10.4103/endo.endo_128_23","DOIUrl":"https://doi.org/10.4103/endo.endo_128_23","url":null,"abstract":"\u0000 \u0000 \u0000 Endodontic sealers with antimicrobial impact are considered relevant to prevent re-infection and ensure healing of damaged periapical tissue. Hence, this study aimed to assist the antimicrobial effect of newly developed nano-tricalcium silicate-58s bioactive glass (BG)-based endodontic sealer (C3S-BG-P), and compare its results with Nishika Canal Sealer BG and BioRoot™ root canal sealer (RCS).\u0000 \u0000 \u0000 \u0000 The antimicrobial impact of endodontic sealers was evaluated by both agar diffusion test (ADT) and direct contact test (DCT) against Enterococcus faecalis and Candida albicans. In ADT, the diameter of inhibition zones was measured after 1, 2, and 3 days of incubation using Digimizer software program. In DCT, the sealers were allowed to set for 1, 7, and 14 days and then exposed to the microbial suspension for 24 h. The colony-forming unit was counted using ImageJ software program. The data were analyzed with ANOVA and Tukey’s tests.\u0000 \u0000 \u0000 \u0000 In ADT, all the tested sealers showed antimicrobial effect after 3 days, with no significant difference after 1 day, but the impact of C3S-BG-P and Nishika significantly higher than that of BioRoot after 2 and 3 days. In DCT, C3S-BG-P and Nishika had an antimicrobial effect against both isolates even after 14 days of their setting, whereas BioRoot had an effect for 7 days of its setting and lost its impact after 14 days.\u0000 \u0000 \u0000 \u0000 C3S-BG-P explored antimicrobial impact superior to that of BioRoot and nearly comparable to that of Nishika against E. faecalis and C. albicans, which last even after 14 days of its setting.\u0000","PeriodicalId":11607,"journal":{"name":"Endodontology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140748969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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