Journal of Restorative Dentistry最新文献_第4页

A comparison of different irrigation/agitation methods for the removal of calcium hydroxide medicament from the root canal walls 不同冲洗/搅拌方法去除根管壁上氢氧化钙药物的比较

Journal of Restorative Dentistry Pub Date : 2015-05-01 DOI: 10.4103/2321-4619.156644

Erhan Tahan, Buket Tug Kilkis, M. Tanrıver, M. Akdağ

{"title":"A comparison of different irrigation/agitation methods for the removal of calcium hydroxide medicament from the root canal walls","authors":"Erhan Tahan, Buket Tug Kilkis, M. Tanrıver, M. Akdağ","doi":"10.4103/2321-4619.156644","DOIUrl":"https://doi.org/10.4103/2321-4619.156644","url":null,"abstract":"Aim: To compare the removal efficiency of calcium hydroxide (CH) medicament from the root canal walls with different irrigation/agitation methods. Materials and Methods: Forty human mandibular premolars were selected. Root canals of these teeth were prepared up to F4 file using ProTaper rotary system and then filled with CH. All root specimens were stored at 37΀C and 100% relative humidity for 7 days. Teeth were randomly divided into four different groups (n = 10). For the removal of the medicaments from the canal walls, roots were subjected to the final irrigation/agitation methods used as follows: Conventional syringe irrigation with side-vented needle (Group 1), passive ultrasonic irrigation (PUI; Group 2), manual dynamic agitation (Group 3), and apical negative pressure irrigation (Group 4). The negative control did not receive CH placement. The positive control received the intracanal medication, but no subsequent removal. Roots were split longitudinally into two halves. Digital images of the root canal walls were acquired by a digital camera and assessed for residual amount of medicament. Cervical, middle, and apical third of each canal was assessed by using a scoring system. Data were analyzed using one-way analysis of variance (ANOVA) and Tukey′s multiple comparison tests, at 95% confidence interval (P < 0.05). Results: There were no statistically significant differences between all experimental groups and the negative group in each canal third (P > 0.05). However, there were statistically significant differences between the experimental groups and the positive control (P < 0.05). None of the experimental groups totally removed CH medicaments from root canal walls. Conclusions: In the limitations of this in vitro study, all experimental groups produced similar removal efficiency in terms of canal cleanliness.","PeriodicalId":17076,"journal":{"name":"Journal of Restorative Dentistry","volume":"4 1","pages":"44 - 48"},"PeriodicalIF":0.0,"publicationDate":"2015-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85932532","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: 2

Status of self-etch adhesives for bonding to pulp chamber dentin 牙本质自蚀刻胶粘剂的研究现状

Journal of Restorative Dentistry Pub Date : 2015-05-01 DOI: 10.4103/2321-4619.156646

M. Ayar

引用次数: 3

Conservative ideology of tooth preservation by means of the repair of defective restorations 通过修复有缺陷的修复体来保存牙齿的保守思想

Journal of Restorative Dentistry Pub Date : 2015-05-01 DOI: 10.4103/2321-4619.156641

H. Çolak

引用次数: 0

Effect of new laser type on shear bond strenght of acrylic teeth to denture base 新型激光对丙烯酸牙与义齿基托剪切结合强度的影响

Journal of Restorative Dentistry Pub Date : 2015-01-01 DOI: 10.4103/2321-4619.150028

M. Malkoç, N. Demir, Ayşe Tuba Öğreten, A. Ozturk, H. Kılıç

{"title":"Effect of new laser type on shear bond strenght of acrylic teeth to denture base","authors":"M. Malkoç, N. Demir, Ayşe Tuba Öğreten, A. Ozturk, H. Kılıç","doi":"10.4103/2321-4619.150028","DOIUrl":"https://doi.org/10.4103/2321-4619.150028","url":null,"abstract":"Background: The aim of this study is to examine the Shear Bond Strength (SBS) to repairing acrylic or acrylic artificial teeth which applied to four different surface treatments. Materials and Methods: Fourty molar acrylic denture teeth were ground on the ridge lap area with a water sand paper to provide a uniform surface for bonding. Acrylic teeth embedded in cold cured acrylic resin and specimens were randomly seperated into four roups (n = 10), according to the urface treatments applied; 1-Control, 2-Air abrasion, 3-Er-YAG laser and 4-Femtosecond laser. The cold cured acrylic resin (Vertex self curing) was then mixed according to the manufacturer′s instructions and injected into the Teflon tubes with an internal diameter and height of 4 and 3 mm, respectively. The SBS of the acrylic denture teeth was evaluated using a universal testing machine. Acrylic denture teeth bonding areas were observed with a stereomicroscope to identify the mode of fracture. Results: The data were evaluated statistically Kruskal Wallis one-way analysis of variance (ANOVA) and Mann Whitney U-tests with bonferronni correction. There were no statistically significant difference of mean bond strengths for shear tests among control, Er-YAG and Femtosecond laser application groups. But the highest SBS values were found for air abrasion groups. Conclusion: A quick and simple air abrasion surface treatment technique could be an effective option for denture repair.","PeriodicalId":17076,"journal":{"name":"Journal of Restorative Dentistry","volume":"100 18 1","pages":"26 - 30"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88090374","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: 7

Histopathological evaluation of human pulp response to two self-etching resins 两种自腐蚀树脂对人牙髓反应的组织病理学评价

Journal of Restorative Dentistry Pub Date : 2015-01-01 DOI: 10.4103/2321-4619.150013

N. Çobanoğlu, F. Ozer, M. Demirci, O. Ozdemir, S. Imazato

{"title":"Histopathological evaluation of human pulp response to two self-etching resins","authors":"N. Çobanoğlu, F. Ozer, M. Demirci, O. Ozdemir, S. Imazato","doi":"10.4103/2321-4619.150013","DOIUrl":"https://doi.org/10.4103/2321-4619.150013","url":null,"abstract":"Objective: The aim of this study was to evaluate the human pulp response following the application of two proprietary self-etch adhesive systems (Clearfil Protect Bond and Clearfil SE Bond). Materials and Methods: Deep Class V cavities were prepared on the teeth scheduled to be extracted. Cavities were covered with a composite resin (Clearfil APX) following the application of the bonding agents. The teeth were extracted after 7 or 90 days and prepared for histological investigation. The pulp response was categorized. Two cavities were restored with calcium hydroxide used as the control in the 7-day period. The data were submitted to two-way analysis of variance (ANOVA), Mann-Whitney U tests and Wilcoxon signed-rank test. Results: Inflammatory cell infiltration was not shown in most of the teeth. No significant statistical difference concerning all the histological evaluation criteria was observed among the groups of adhesive systems or between the control group and the groups of adhesive systems. (P > 0.05). Conclusion: Both bonding systems were found biologically compatible with pulp tissues in non-exposed cavities.","PeriodicalId":17076,"journal":{"name":"Journal of Restorative Dentistry","volume":"257 1","pages":"1 - 7"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76203467","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: 1

Radicular dentinal defects incidence after using EDTA gel with different root canal instrumentation techniques EDTA凝胶在不同根管预备技术下的根状牙本质缺损发生率

Journal of Restorative Dentistry Pub Date : 2015-01-01 DOI: 10.4103/2321-4619.150027

Mohamed El Sayed, Maryam Al amoud, Malak Rashid M'gharfaoui

{"title":"Radicular dentinal defects incidence after using EDTA gel with different root canal instrumentation techniques","authors":"Mohamed El Sayed, Maryam Al amoud, Malak Rashid M'gharfaoui","doi":"10.4103/2321-4619.150027","DOIUrl":"https://doi.org/10.4103/2321-4619.150027","url":null,"abstract":"Objectives: The purpose of this study was to compare the incidence of dentinal defect formation after using EDTA gel during root canal preparations by three different instrumentation techniques. Materials and Methods: One hundred and forty maxillary central incisors were decoronated and roots were embedded in resin blocks. Twenty samples were left unprepared (Control group), and the remaining 120 samples were divided into three groups. Each group was divided equally into two subgroups according to the use of EDTA gel during root canal instrumentation. Roots were prepared with hand file (Group 1), ProTaper Universal (Group 2) and WaveOne (Group 3). Roots were sectioned 3, 6, and 9 mm from the apex, and the cut surface was observed microscopically and the presence of dentinal defects was checked. The differences between groups were analyzed using Fisher′s exact test. Results: Unprepared roots did not show any dentinal defects. Dentinal defects were observed in all prepared roots. The difference between experimental groups and subgroups regarding the incidence of dentinal defects was not statistically significant. Conclusion: Canal preparation using hand or rotary files created radicular dentinal defects. The use of EDTA gel during root canal preparation did not reduce the incidence of dentinal defects.","PeriodicalId":17076,"journal":{"name":"Journal of Restorative Dentistry","volume":"44 1","pages":"21 - 25"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86847445","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: 4

Effect of coronal cement base and its thickness on the fracture resistance of endodontically treated teeth 冠状骨水泥基托及其厚度对根管治疗牙体抗折性的影响

Journal of Restorative Dentistry Pub Date : 2015-01-01 DOI: 10.4103/2321-4619.150015

C. Yıldırım, Uğur Aydın, A. Ozsevik, F. Aksoy, Samet Tosun

{"title":"Effect of coronal cement base and its thickness on the fracture resistance of endodontically treated teeth","authors":"C. Yıldırım, Uğur Aydın, A. Ozsevik, F. Aksoy, Samet Tosun","doi":"10.4103/2321-4619.150015","DOIUrl":"https://doi.org/10.4103/2321-4619.150015","url":null,"abstract":"Objective: To compare the fracture resistance of endodontically treated teeth with mesiodistocclusal (MOD) cavities restored with only composite resin, 3 mm glass-ionomer cement (GIC) base + composite resin, and 5 mm GIC base + composite resin. Materials and Methods: Fifty extracted intact mandibular molars were randomly divided into five groups each including 10 teeth. Group 1: No cavity preparation or endodontic treatment was applied (intact teeth). Group 2-5: Root canals were prepared with step-back technique and filled lateral condensation of gutta-percha and sealer. Group 2: No coronal restoration was achieved. Group 3: Teeth were coronally restored with only composite resin. Group 4: Coronal restorations were performed with composite resin following 3 mm GIC base placement. Group 5: Composite resin placed over 5 mm GIC base. After finishing and polishing, all specimens were kept in an incubator at 37°C in 100% humidity for 24 h and fracture resistance was tested with a Universal Testing Machine. Mean force load for each sample was recorded in Newtons (N). Results were statistically analyzed with one-way analysis of variance (ANOVA) and post-hoc Tukey′s tests. Results: The mean force required to fracture each sample was as follows: Group 1: 2,745.3; Group 2: 325.9; Group 3: 1,958.1; Group 4: 1,756.3; and Group 5: 1,889.1. Fracture resistance of intact teeth (Group 1) was significantly higher than all other groups. Fracture resistance of teeth in Group 2 (not coronally restored) was significantly lower than all other groups. Fracture resistance values of other three experimental groups (Groups 3, 4, and 5) were not significantly different from each other. Conclusion: Placing a GIC base and its thickness did not significantly affect the fracture resistance compared with composite resin alone.","PeriodicalId":17076,"journal":{"name":"Journal of Restorative Dentistry","volume":"44 1","pages":"8 - 13"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88366950","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: 1

Survival times of restorative parameters vis-à-vis material combinations 修复参数相对-à-vis材料组合的存活时间

Journal of Restorative Dentistry Pub Date : 2015-01-01 DOI: 10.4103/2321-4619.150026

S. Sampath

{"title":"Survival times of restorative parameters vis-à-vis material combinations","authors":"S. Sampath","doi":"10.4103/2321-4619.150026","DOIUrl":"https://doi.org/10.4103/2321-4619.150026","url":null,"abstract":"Context: Two types of composite restorative modalities are compared: All-universal composite restoration (single) versus restorations done using flowable-universal composite combination (dual). Aims: To assess survival probabilities of three restorative parameters: Intactness,color match and marginal integrity. Whether the survival probabilities are influenced by restoration modality and cavity types, and if so, to what extent Clinically relevant deductions with respect to materials and clinical technique. Settings and Design: A retrospective, case-control analytical study based on secondary data derived from documentation of evaluations of restorations placed in patients attending a primary dental care. Subjects and Methods: Data from the records of as many restorations that were routinely evaluated in the clinic, at different points in time for up to 5 years, were drawn up (2008 − 2013). The dual modality restorations were considered as ′cases′ and the single modality restorations were deemed ′controls′. Statistical Analysis Used: The life-table method was applied for the survival analysis of each of the three clinical parameters. Qualitative analysis of these same parameters was also carried out using the Chi-square test with P < 0.05. Results: Survival probabilities of restoration retention (intactness) and color match were not influenced by the restorative modality, though marginal integrity′s survival probability was; being slightly lower for flowable-universal combination. The subset of posterior load-bearing cavities performed similarly on all clinical parameters (survival as well as qualitatively), uninfluenced by the restorative modality. Conclusions: Overall, the lower survival of marginal integrity may necessitate sooner replacements for restorations done using flowable-universal combinations. However, in the specific case of classes I, II and built-ups i.e. posterior load bearing cavities, these might as well be restored with a combination of flowable-universal material.","PeriodicalId":17076,"journal":{"name":"Journal of Restorative Dentistry","volume":"12 1","pages":"14 - 20"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74183746","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: 1

Clinical management of a traumatized maxillary central incisor restored with the original fragment using fiber-reinforced post system 纤维增强桩系统修复创伤上颌中切牙的临床处理

Journal of Restorative Dentistry Pub Date : 2015-01-01 DOI: 10.4103/2321-4619.150029

Erhan Tahan, M. Akdağ, O. Kose, M. Tanrıver

引用次数: 0

Comparison of the effect of three different post systems on root fracture 三种不同桩制对根断效果的比较

Journal of Restorative Dentistry Pub Date : 2014-09-01 DOI: 10.4103/2321-4619.143595

E. Ok, Erhan Dilber, Mustafa Altunsoy, Abdüssamed Kalkan, N. Demir

{"title":"Comparison of the effect of three different post systems on root fracture","authors":"E. Ok, Erhan Dilber, Mustafa Altunsoy, Abdüssamed Kalkan, N. Demir","doi":"10.4103/2321-4619.143595","DOIUrl":"https://doi.org/10.4103/2321-4619.143595","url":null,"abstract":"Aim: The aim of this in vitro study was to compare the effect of three different post systems cemented with different systems on root fracture. Materials and Methods: Seventy-five extracted human maxillary canines with single and straight roots were used in this study. After the crowns were removed, root canals were prepared with Reciproc R50 files. Smear layer of roots were removed using 17% Ethylenediaminetetraacetic acid (EDTA) followed by 5.25% NaOCl and distilled water. All the root canals were filled with cold lateral compaction technique using AH Plus root canal sealer and gutta-percha. Samples were stored at 37°C and 100% humidity for 1 week and then post space was prepared using fiber post drills. The roots were then randomly divided into five groups according to the luting cements and post systems: negative control, positive control, glass fiber post [Unicore® (Ultradent, Salt Lake City UT, USA)] + composite core [Grandio SO (Voco GmbH, Cuxhave, Germany)], glass fiber post [Unicore® ] + Rebilda® post-core system, individual cast post core. A load was applied on the crowns of all teeth at 135° to their long axis until fracture occurred. Data were analyzed using one-way analysis of variance (ANOVA) and post-hoc Tukey tests. Results: There was statistically significant difference between the groups. According to the post-hoc Tukey test, cast post core (1949.35 + 316 N) showed statistically significantly higher fracture resistance than all the groups except Unicore® + Rebilda® post-core systems (1722.48 + 144.0 N). Conclusion: Fiber post core system which is an alternative to cast post core systems increased the fracture resistance of the canines with root canal treatment. While irrepairable catastrophic fractures might be seen in cast post-core systems, separations between composite resin core, and root interfaces might be seen in teeth restored with fiber post-core systems.","PeriodicalId":17076,"journal":{"name":"Journal of Restorative Dentistry","volume":"10 1","pages":"125 - 129"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78909318","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: 2