Journal of International Clinical Dental Research Organization最新文献

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Retrospective evaluation of fissure sealants applied by dentistry students 牙科学生应用牙缝封闭剂的回顾性评价
IF 0.1
Journal of International Clinical Dental Research Organization Pub Date : 2022-11-01 DOI: 10.5577/intdentres.451
Merve Abaklı İnci, Hazal Özer, Merve Koç
{"title":"Retrospective evaluation of fissure sealants applied by dentistry students","authors":"Merve Abaklı İnci, Hazal Özer, Merve Koç","doi":"10.5577/intdentres.451","DOIUrl":"https://doi.org/10.5577/intdentres.451","url":null,"abstract":"Aim: The purpose of this study was to assess the adequacy and success of meeting protective expectations with increasing time of fissure sealants with resin content made by dentistry students in our clinic.\u0000Methodology: The 6-month controls of the resin-based pit and fissure sealants applied by the 5th-grade dentistry students to the patients who applied to the Necmettin Erbakan University Faculty of Dentistry Pedodontics Clinic between January 2022 and February 2022 were checked, and their survival was checked. SPSS 26 statistical program was used in the analysis of the data. The statistical significance level in the study was determined as p<0.05. A total of 85 patients and a total of 516 teeth, including premolars and molars, were included in the study.\u0000Results: A total of 128 teeth were processed in the right maxilla, and total retention was observed in 102 teeth. Right maxilla; When the left maxilla (p=0.001), left mandible (p=0.011), and right mandible (p=0.001) were compared in terms of total retention, a statistically significant difference was found. When the teeth are compared among themselves, the highest rate of a total loss of 50% is in teeth 26 and 47. When the teeth are evaluated according to age, teeth numbered 14 (p=0.001) and 24 (p=0.001) are 9 years old, teeth 35 (p=0.001) and 45 (p=0.001) are 9-10 years old, and teeth number 44 (0.012) At the age of 10, the percentage of total loss was higher than the other age groups, and a statistically significant difference was found. This suggests that the ideal isolation of the permanent premolars may not have been achieved since they do not fully erupt at the age of 9-10. \u0000Conclusion: When all the results were evaluated, it was seen that the retention of fissure sealants depended on multiple factors, and their indications should be carefully examined.","PeriodicalId":31322,"journal":{"name":"Journal of International Clinical Dental Research Organization","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79351120","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}
引用次数: 0
The effect of occlusal reduction and different CAD/CAM materials on stress distribution in endocrown restorations: A 3D finite element analysis 咬合复位和不同CAD/CAM材料对内冠修复体应力分布的影响:三维有限元分析
IF 0.1
Journal of International Clinical Dental Research Organization Pub Date : 2022-11-01 DOI: 10.5577/intdentres.461
Gökçen İrem Tolu, Neslihan Güntekin, R. Mohammadi, Mehmet Gökberkkaan Demirel
{"title":"The effect of occlusal reduction and different CAD/CAM materials on stress distribution in endocrown restorations: A 3D finite element analysis","authors":"Gökçen İrem Tolu, Neslihan Güntekin, R. Mohammadi, Mehmet Gökberkkaan Demirel","doi":"10.5577/intdentres.461","DOIUrl":"https://doi.org/10.5577/intdentres.461","url":null,"abstract":"Aim: The aim of this study was to examine the effects of different preparation types and restorative materials on the endocrown restoration applied to endodontically treated maxillary first molar and the stress distribution on the related tissues.\u0000Methodology: A 3-dimensional (3D) image of a previously extracted intact tooth was obtained with CBCT. The resulting .dicom files were imported into the Mimics. Enamel, dentine and pulp were separated and extracted as an STL file. 4 different groups were determined and prepared in SolidWorks. The 3D images were imported into the relevant finite element analysis software (ABAQUS), and a load of 600 N was applied at the occlusal area of each model in the axial direction. Models are divided into 3 groups according to material type: Vita Suprinity (VS; VITA Zahnfabrik), Cerasmart (CS; GC Corp.), and Shofu Block HC (SB; Shofu). There is also a type of cement is used: RelyX ARC (3M ESPE).\u0000Results: Regardless of the results, any stresses on any tissue or restoration were not above the strength limits. In models with cusp preparation, the stress on the dental tissues was lower. In addition, higher stress was generally observed in groups where the lingual area was healthy. On the other hand, the stress occurring in zirconia-reinforced glass ceramics (VS) is higher compared to ceramic materials with a resin matrix (CS, SB). It has been determined that the stress transmitted to the supporting tissues is lower.\u0000Conclusion: As a result, endocrown restorations can be used in the restoration of endodontically treated first molars. In addition, when endocrown restoration is applied to molars with only one healthy area and excessive loss of coronal structure, reducing the cusp will be beneficial in terms of the distribution of stress on the healthy tissues. ","PeriodicalId":31322,"journal":{"name":"Journal of International Clinical Dental Research Organization","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75350091","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}
引用次数: 0
Influence of different crown heights on shorter implants with different lengths, diameters, and designs at atrophic posterior mandible: A finite element analysis 不同冠高对不同长度、直径和设计的短种植体在萎缩后下颌的影响:有限元分析
IF 0.1
Journal of International Clinical Dental Research Organization Pub Date : 2022-10-26 DOI: 10.5577/intdentres.430
Elif İrem Mahmutoğlu, S. Agüloğlu
{"title":"Influence of different crown heights on shorter implants with different lengths, diameters, and designs at atrophic posterior mandible: A finite element analysis","authors":"Elif İrem Mahmutoğlu, S. Agüloğlu","doi":"10.5577/intdentres.430","DOIUrl":"https://doi.org/10.5577/intdentres.430","url":null,"abstract":"Aim: The aim of the study is to compare the stresses cause of different crown heights on short implants with different lengths, diameters and designs under axial and oblique loads on the cortical bone and implant system using finite element analysis. \u0000Methodology: In the atrophic posterior mandible, 4 different implants of different sizes and designs were placed in the first molar region. Metal supported porcelain crowns with three different heights (10 mm, 12.5 mm, 15 mm) were designed on computer. Total of 12 study models were created. Axial and oblique loads were applied and by finite element analysis method Von Mises values in implant and abutment; maximum and minimum principal stress values in cortical bone were evaluated. \u0000Results \u0000Compared to axial load, significantly higher stress values were found at implant and cortical bone in obliquelly loaded models. As the length and diameter of the implant increased, the stresses on the cortical bone decreased. Compared to the threaded implant, the plateau design implant caused less stress on the bone under vertical loads, while causing more stress on the oblique. \u0000Unlike to the literature, it was observed that the stresses on the implant was higher in the larger diameter implant compared to the narrower. \u0000Conclusions \u0000As a result of the stress values obtained within the limits of the analysis, when the lengths of the crowns restored on short implants were compared, it was determined that the axial forces were at an acceptable level under all conditions.","PeriodicalId":31322,"journal":{"name":"Journal of International Clinical Dental Research Organization","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85224167","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}
引用次数: 0
Evaluating the color stability of two esthetic ceramic materials after different surface treatments and accelerated aging procedures 评价两种美学陶瓷材料经过不同表面处理和加速老化后的颜色稳定性
IF 0.1
Journal of International Clinical Dental Research Organization Pub Date : 2022-10-26 DOI: 10.5577/intdentres.426
Özge Gül, S. Agüloğlu
{"title":"Evaluating the color stability of two esthetic ceramic materials after different surface treatments and accelerated aging procedures","authors":"Özge Gül, S. Agüloğlu","doi":"10.5577/intdentres.426","DOIUrl":"https://doi.org/10.5577/intdentres.426","url":null,"abstract":"Aim: Observing and evaluating the long/short-term discoloration tendency of the esthetic prosthetic materials of lithium disilicate-based glass-ceramics (IPS e.max CAD LT) and leucite-based feldspathic glass-ceramics (VITA Mark II) materials, which are esthetically very close to each other at first glance. \u0000Methodology: 80 samples of A2 colored lithium disilicate and feldspathic blocks samples were overglazed and polished separately to evaluate the surface treatment procedures according to CIELAB color coordinates. For accelerated aging purposes, half of the examples were treated to red wine, and the other half were treated to coffee. Color changes were calculated using the ΔE formula. The results were put into record as ΔE-1, ΔE-2, and ΔE-3. Records of the results were evaluated using IBM SPSS Statistics Standard Concurrent User V 25 statistics package program. Data distribution regarding numerical variety and changes were evaluated using the Shapiro Wilk normality test and Q-Q graphics.  \u0000Results: The data was evaluated using O'Brien clinical color tolerance scales. None of the samples has shown a perfect (ΔE=0-0.5) color match after 4 weeks of accelerated aging. Every group has shown results of significant statistical changes at various rates and percentages and divided into 4 subgroups as excellent, good, clinically acceptable and incompatible categories. \u0000Conclusion: Since aging procedures affect ceramic systems' ΔE values in a variety of ways, the aging protocol utilizing in vitro aging techniques for color changing should be evaluated alongside ceramic type and surface finishing procedures. ","PeriodicalId":31322,"journal":{"name":"Journal of International Clinical Dental Research Organization","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87525330","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}
引用次数: 0
Retention in Orthodontics: A review 正畸固位:综述
IF 0.1
Journal of International Clinical Dental Research Organization Pub Date : 2022-08-31 DOI: 10.5577/intdentres.2022.vol12.no2.7
Melis Seki Yurdakul, Pamir Meriç
{"title":"Retention in Orthodontics: A review","authors":"Melis Seki Yurdakul, Pamir Meriç","doi":"10.5577/intdentres.2022.vol12.no2.7","DOIUrl":"https://doi.org/10.5577/intdentres.2022.vol12.no2.7","url":null,"abstract":"Skeletal and dental correction obtained by orthodontic treatment may tend to return to the pre-treatment state. This condition is defined as relapse.  The retention phase applied after treatment is important to obtain stable results.  Periodontium, soft tissue pressures, growth and occlusion are among the factors affecting stability. In the last decade, interest in retention procedures has increased and it has been found that retention regimes differ from country to country. Although retention affects nearly every patient, there is minimal agreement on the most appropriate approach to be taken in an individual case. The many variations of the retention procedure, the introduction of different materials for retention, or individual patient factors are among the reasons that lead to difficulties in selecting retention protocols. Basic retention protocol is provided with removable and fixed retention appliances. For removable retention, hawley, wraparound, vacuum formed retention appliance and positioners are used. For fixed retention, rigid steel retention wire bonded to terminal teeth or flexible retention wires bonded to all teeth between 3-3 can be preferred. NiTi retention wires produced with CAD / CAM technology are also among the current materials. While fixed retention appliances do not require patient cooperation, periodontal follow-up is recommended. Patient cooperation is needed for the use of removable retention appliances, but easy cleaning of removable appliances is an advantage. ‘Adjunct’ procedures may also be applied to the teeth or surrounding periodontium to assist the retention process. For example, it involves reshaping teeth such as interproximal reduction or circumferential supracrestal fiberotomy. In this review, information about retention is discussed in the light of current literature.\u0000 \u0000How to cite this article: \u0000Seki Yurdakul M, Meriç P. Retention in Orthodontics: A review. Int Dent Res 2022;12(2):88-96. https://doi.org/10.5577/intdentres.2022.vol12.no2.7\u0000 \u0000Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.","PeriodicalId":31322,"journal":{"name":"Journal of International Clinical Dental Research Organization","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80788509","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}
引用次数: 0
Effects of different surface treatments on the compression-shear strength of CAD-CAM zirconia posts 不同表面处理对CAD-CAM氧化锆桩抗压抗剪强度的影响
IF 0.1
Journal of International Clinical Dental Research Organization Pub Date : 2022-08-31 DOI: 10.5577/intdentres.2022.vol12.no2.a3
M. Eskitaşçıoğlu, Derya Toprak Gündüz, Zelal Seyfioğlu Polat, Emine Göncü Başaran, Emrah Ayna
{"title":"Effects of different surface treatments on the compression-shear strength of CAD-CAM zirconia posts","authors":"M. Eskitaşçıoğlu, Derya Toprak Gündüz, Zelal Seyfioğlu Polat, Emine Göncü Başaran, Emrah Ayna","doi":"10.5577/intdentres.2022.vol12.no2.a3","DOIUrl":"https://doi.org/10.5577/intdentres.2022.vol12.no2.a3","url":null,"abstract":"Aim: Post systems are crucial for the treatment of endodontically treated teeth with excessive crown destruction. Currently, increase in esthetic demands has increased the use of tooth-colored post systems. The aim of this study was to evaluate compression-shear strength after the application of different resin cements and different surface treatments to zirconia post-cores produced by the CAD-CAM milling technique.\u0000Methodology: One hundred twenty crown parts of maxillary central incisors were cut using a 2-mm enamel–cement joint using a water-cooled diamond bur in an air turbine handpiece at 300,000 rpm. Root canals with the same diameter were prepared using Gates-Glidden drills and Snowpost system drills. According to the enlarged canal, zirconia posts were prepared by the CAD-CAM copy-milling technique, and the zirconia post surfaces were roughened by different techniques (hydrofluoric acid, Al2O3 partial abrasion, CoJet silica coating). The roughened posts were cemented to the tooth canal using three resin cements: 10-Methacryloyloxydecyl dihydrogen phosphate (MDP)-containing cement, Bis-GMA-based resin, and resin-based adhesive. As the control group, the zirconia post surfaces with no application were fixed using three resin cements. The specimens were set down into 25x25x25 mm fabricated blocks with acrylic resin materials. Compression-shear strength tests of the prepared samples were conducted on the Instron Testing Machine by using appropriate equipment.\u0000Results: In summary, the combination of roughening techniques such as Al2O3 partial etching and CoJet silica coating using cement-containing MDP rendered the highest compression-shear strength.\u0000Conclusion: This in vitro study proposes the cementation of zirconia post-cores etched by Cojet silica coating and Al2O3 particles using MDP-containing resin cement.\u0000 \u0000How to cite this article: \u0000Eskitaşçıoğlu M, Toprak Gündüz D, Seyfioğlu Polat Z, Göncü Başaran E, Ayna E. Effects of different surface treatments on the compression-shear strength of CAD-CAM zirconia posts. Int Dent Res 2022;12(2):55-61. https://doi.org/10.5577/intdentres.2022.vol12.no2.a3\u0000 \u0000Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.","PeriodicalId":31322,"journal":{"name":"Journal of International Clinical Dental Research Organization","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82973328","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}
引用次数: 0
Evaluation of two different imaging software programs in planning orthognathic surgery cases 两种不同成像软件程序在计划正颌手术病例中的评价
IF 0.1
Journal of International Clinical Dental Research Organization Pub Date : 2022-08-31 DOI: 10.5577/intdentres.2022.vol12.no2.5
M. Balki, Mehmet Doğru
{"title":"Evaluation of two different imaging software programs in planning orthognathic surgery cases","authors":"M. Balki, Mehmet Doğru","doi":"10.5577/intdentres.2022.vol12.no2.5","DOIUrl":"https://doi.org/10.5577/intdentres.2022.vol12.no2.5","url":null,"abstract":"Aim: In this study, we aimed to compare the two-dimensional predictions made by two computer software packages with the postoperative values, and thus to evaluate the clinical reliability of digital orthognathic surgery planning.\u0000Methodology: Orthodontic treatment was performed before orthognathic surgery, and the same surgical team performed double-jaw orthognathic surgeries. We included 20 individuals (10 females, 10 males) with skeletal Class III malocclusion. The average age of the individuals was 21.5 years. In our study, the amount of movement was determined using reference lines on lateral cephalometric radiographs obtained from the preoperative and postoperative Cone-Beam Computed Tomography (CBCT) records of 20 individuals. Prediction profiles were formed using Dolphin Imaging (Dolphin Imaging & Management Solutions, Chatsworth, CA, USA) and NemoFAB 2D (Software Nemotec, S.L, Spain) computer softwares. In this way, the reliability and consistency of two-dimensional prediction software were examined.\u0000Results: The prediction profiles obtained from the computer software were compared with lateral cephalometric radiographs of the postoperative surgery results for 37 cephalometric parameters. There were no significant differences between software predictions and postoperative results in any cephalometric parameters.\u0000Conclusion: The plans and predictions made with the two computer software packages were reliable and can be used clinically.\u0000 \u0000How to cite this article: \u0000Balkı M, Doğru M. Evaluation of two different imaging software programs in planning orthognathic surgery cases. Int Dent Res 2022;12(2):70-81. https://doi.org/10.5577/intdentres.2022.vol12.no2.5\u0000 \u0000Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.","PeriodicalId":31322,"journal":{"name":"Journal of International Clinical Dental Research Organization","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87178338","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}
引用次数: 0
A comparison of the effect of different forms of Graphene and Polyvinylpyrrolidone on physically strengthening PMMA 不同形式的石墨烯和聚乙烯吡咯烷酮对PMMA物理强化效果的比较
IF 0.1
Journal of International Clinical Dental Research Organization Pub Date : 2022-08-31 DOI: 10.5577/intdentres.2022.vol12.no2.4
Server Mutluay Ünal
{"title":"A comparison of the effect of different forms of Graphene and Polyvinylpyrrolidone on physically strengthening PMMA","authors":"Server Mutluay Ünal","doi":"10.5577/intdentres.2022.vol12.no2.4","DOIUrl":"https://doi.org/10.5577/intdentres.2022.vol12.no2.4","url":null,"abstract":"Aim: The aim of this study was to compare the effects of powder, mat, and sheet forms of graphene and polyvinylpyrrolidone (PVP) on the bending strength of polymethyl methacrylate (PMMA).\u0000Methodology: A total of 75 PMMA samples (64 x 13 x 3 mm) were obtained and separated into five groups of 15, one of which was the control group. No strengthening material was added to the control group samples. In the PMMA+Polyvinylpyrrolidone powder (PVPP) (Group B) and PMMA+Graphene powder (GP) groups (Group D), PVP (0.5%) and graphene (0.01%) powders, respectively were added to the PMMA. In the PMMA+Polyvinylpryrolidone fiber mat (PVPM) (Group C) and PMMA+Graphene sheet (GS) groups (Group E), a PVP mat and graphene sheet, respectively were placed in the center of a square PMMA resin mold. To measure the samples’ resistance to bending, the three-point bending test (ISO 1567) was applied. Fracture lines were examined under a scanning electron microscope (SEM), and bending strength was analyzed using one-way analysis of variance (ANOVA).\u0000Results: A statistically significant difference was determined between the GS (118.5093 ± 11.94859 Mpa) and PVPP (105.5267 ± 6.80595 Mpa) groups. The mean bending resistance values were numerically higher in the PVPM (115.8487 ± 17.15440), GS (118.5093 ± 11.94859), and GP (116.2680 ± 16.03207) groups compared to the control group (108.2407 ± 24.23104). The graphene sheets and PVP mats showed higher resistance to bending than the powder form of either material.\u0000Conclusion: In clinical dental prosthesis use, PVP mats and graphene sheets are preferable with respect to both PMMA strengthening and color.\u0000 \u0000How to cite this article: \u0000Mutluay Ünal S. A comparison of the effect of different forms of Graphene and Polyvinylpyrrolidone on physically strengthening PMMA. Int Dent Res 2022;12(2):62-9. https://doi.org/10.5577/intdentres.2022.vol12.no2.4\u0000 \u0000Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.","PeriodicalId":31322,"journal":{"name":"Journal of International Clinical Dental Research Organization","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76979990","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}
引用次数: 0
Evaluation of apical extrusion of debris during retreatment: R-Endo rotary instruments versus hand files 再治疗过程中对碎片根尖挤压的评价:R-Endo旋转器械与手锉
IF 0.1
Journal of International Clinical Dental Research Organization Pub Date : 2022-08-31 DOI: 10.5577/intdentres.2022.vol12.no2.6
Nazan Yırgın Akgül, F. Haznedaroğlu, Çagla Vardar
{"title":"Evaluation of apical extrusion of debris during retreatment: R-Endo rotary instruments versus hand files","authors":"Nazan Yırgın Akgül, F. Haznedaroğlu, Çagla Vardar","doi":"10.5577/intdentres.2022.vol12.no2.6","DOIUrl":"https://doi.org/10.5577/intdentres.2022.vol12.no2.6","url":null,"abstract":"Aim: The aim of this ex vivo study was to compare the amount of debris extruded during retreatment using stainless steel hand files (Hedstroem files) and R-Endo Nickel Titanium rotary instruments.\u0000Methodology: Eighty single-rooted freshly extracted human mandibular premolars were divided into two groups consisting of 40 teeth each. Retreatment was performed with R-Endo (Micro-Mega, Besançon, France) and Hedstroem files (Dentsply, Maillefer, Ballaigeus, Switzerland). The experimental teeth were obturated with lateral condensation technique. Then, 1.5-mL Eppendorf tubes were used to collecting the material that was extruded during preparation by subtracting post-instrumentation weight from pre-instrumentation weight.\u0000Results: There were significant differences in the amount of debris extruded between the groups (p<0.001). The amount of apical extrusion in the R-Endo group was determined to be less than in the hand instrumentation group.\u0000Conclusion: Within the limitations of this study, it might be concluded that all tested instruments resulted in apical extrusion of debris. During endodontic retreatment procedures, the hand files extruded a significantly higher amount of debris than the R-Endo.\u0000 \u0000How to cite this article: \u0000Yırgın Akgül N, Haznedaroğlu F, Vardar Ç. Evaluation of apical extrusion of debris during retreatment: R-Endo rotary instruments versus hand files. Int Dent Res 2022;12(2):82-7. https://doi.org/10.5577/intdentres.2022.vol12.no2.6\u0000 \u0000Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.","PeriodicalId":31322,"journal":{"name":"Journal of International Clinical Dental Research Organization","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81140135","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}
引用次数: 0
Indexes for periapical health evaluation - A review 根尖周健康评价指标综述
IF 0.1
Journal of International Clinical Dental Research Organization Pub Date : 2022-08-31 DOI: 10.5577/intdentres.2022.vol12.no2.8
R. Rajasekhar, Sooraj Soman, V. Sebastian, Sabir Muliyar, Nileena Mary Cherian
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