Journal of Research in Dentistry最新文献

{"title":"Perception of the clinical endodontic practice of Dentistry graduates in their first years in the job market in southern Brazil","authors":"Vanessa Mallmann Weschenfelder, F. Montagner, Simone Bonato Luisi, Tiago André Fontoura de Melo","doi":"10.59306/jrd.v10e4202218-22","DOIUrl":"https://doi.org/10.59306/jrd.v10e4202218-22","url":null,"abstract":"Introduction: Knowledge about the clinical endodontic practices of dental school graduates in the first years of their professional life may contribute to the discussions about Dentistry teaching. Methods: An online questionnaire with seven open and closed questions hosted on the Google forms platform was applied to dentists trained in the first half of 2019 in a School of Dentistry in southern Brazil. The questionnaire is structured to analyze how clinical Endodontics has been practiced in the labor market. The data collected in the questionnaires were transferred to an Excel® spreadsheet and analyzed as absolute and relative frequencies for closed questions and descriptions for open questions. Results: Molars and two-rooted teeth are the dental groups most frequently treated endodontically (64.3% and 35.7%). Both retreatment and conservative treatment of the pulp corresponded to up to 25% of all procedures in the graduates’ clinical practice. The endodontic protocol learned in their dental school was used by 64.3% of the graduates who provided endodontic treatments, and 42.9% reported the occurrence of at least one accident. The difficulty in access reported by the participants suggests that more training should be provided for this operative stage. Conclusions: After two years in the job market and having faced the initial difficulties existing in any profession, more than half of the graduates still performed endodontics in their dental clinical practice and used the same protocols learned in dental school.","PeriodicalId":213881,"journal":{"name":"Journal of Research in Dentistry","volume":"02 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130939247","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}

{"title":"Bioactivity and biocompatibility of bioceramic sealers in endodontics: an integrative review.","authors":"Pedro Henrique Ferreira de Menezes, Magda de Sousa Reis, W. Krabbe, Marieli Chitolina Pradebon, Márcia Helena Wagner","doi":"10.59306/jrd.v10e4202212-17","DOIUrl":"https://doi.org/10.59306/jrd.v10e4202212-17","url":null,"abstract":"Introduction: Bioceramic sealers have been gaining prominence in endodontics, meaning a great advance for endodontic therapy, mainly due to their biocompatibility and bioactivity. Objectives: research and discuss the literature about the bioactivity and biocompatibility of bioceramic sealants. Materials and methods: An integrative review was performed. The systematic plan consisted of four steps. In the first stage, a bibliographic survey was carried out in the Capes Periódicos Portal database. The search criteria were articles published between 2017 and 2022, found in the “advanced search” mode, using cross-references with the following keywords: bioceramics sealers AND endodontology AND root canals AND endodontic sealer AND bioactivity AND biocompatibility. Only documents found and published in full were evaluated. In the second stage, the titles and abstracts of the articles were read. In the third stage, a selection was made of those containing 3 to 5 keywords and a wording equal to or close to the proposed keywords. The fourth step consisted of reading the texts in full, followed by checking for duplicity and building a table with the collected information. Results: In view of the research carried out, 23 articles were obtained in the first stage. After reading the titles and abstracts, 21 articles were obtained. After selecting those containing 3 to 5 keywords, 10 articles met the criteria. One article was deleted due to duplicates. 9 articles met the exclusion and inclusion criteria and were selected to be part of the integrative review. Discussion: The selected studies in this literature review showed that bioceramic endodontic sealants perform well in endodontic therapy. Conclusion: To advance in its clinical application, more in vivo and in vitro studies with precise methods are needed to obtain more reliable data about its properties.","PeriodicalId":213881,"journal":{"name":"Journal of Research in Dentistry","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115055633","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}

{"title":"CYCLIC AND TORSIONAL FATIGUE RESISTANCE OF THREE DIFFERENT THERMALLY TREATED NICKEL-TITANIUM ROTARY INSTRUMENTS","authors":"Rodrigo Ricci Vivan, Murilo Priori Alcalde, Thaine Oliveira Lima, Pedro Henrique De Souza Calefi, M. H. Hungaro Duarte","doi":"10.59306/jrd.v10e2202201-06","DOIUrl":"https://doi.org/10.59306/jrd.v10e2202201-06","url":null,"abstract":"\u0000 \u0000 \u0000Background: The aim of this study was to evaluate the cyclic fatigue and torsional fatigue resistance of three thermally treated rotary instruments, such as: Logic 2 25.05 (LOG 25.05), Edge Taper Platinum 25.06 (EDT 25.06) and ProTaper Gold 25.08 (PTG 25.08).Methods: A total of 60 rotary instruments of LOG 25.05, EDT 25.06 and PTG 25.08 were used (n=20). Cyclic fatigue tests were performed at 36°C using an artificial stainless steel canal with a 60o angle and a 5-mm radius of curvature. The time (in seconds) and number of cycles to fracture (NCF) was recorded. The torsional test evaluated the torque and angle of rotation to failure at 3 mm from the tip according to ISO 3630-1. The fractured surface of each fragment was observed by using scanning electron microscopy (SEM). Data were analyzed using one-way ANOVA and Holm-Sidak’s tests for multiple comparison, the level of significance was set at 5%. \u0000Results: EDT 25.06 had highest cyclic fatigue resistance (time and NFC), followed by LOG 25.05 and PTG 25.08 (P<0.05). There were no significantly difference between LOG 25.05 and ETP 25.06 regarding the NCF (P>0.05). In relation the torsional test, the LOG 25.05 and ETP 25.06 presented similar torque (P>0.05). The PTG presented greater torque than the other groups (P<0.05). The PTG 25.08 presented the lowest angular rotation to fracture than the other groups (P<0.05). The SEM images demonstrated typical features of cyclic and torsional fracture. \u0000 \u0000 \u0000","PeriodicalId":213881,"journal":{"name":"Journal of Research in Dentistry","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117188541","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}

{"title":"THE POST TRANSFIXED IN THE CORONAL CAVITY INCREASES THE FRACTURE RESISTANCE OF WEAKENED AND DIRECTLY RESTORED TEETH? A SYSTEMATIC REVIEW.","authors":"Bruna Neves Portugal, Vanessa Mallmann Weschenfelder, Luiz Henrique Burnett Junior, Tiago André Fontoura de Melo","doi":"10.59306/jrd.v10e2202207-15","DOIUrl":"https://doi.org/10.59306/jrd.v10e2202207-15","url":null,"abstract":"\u0000 \u0000 \u0000Introduction: The objective of this systematic review was to answer the question: Does the intraradicular post transfixed in the dental crown increases the fracture resistance of weakened and directly restored teeth? Methods: Electronic databases (MEDLINE/PubMed, LILACS, SCOPUS, EMBASE, Scientific Electronic Library Online - SCIELO, and Central Register of Controlled Trials - CENTRAL) were searched until March 2021, without language or year restriction. Grey literature was also searched through Google scholar and OpenGrey repository. Only in vitro stud-ies were included that evaluated the influence of the use of intraradicular post trans-fixed in the crown in the buccopalatal/lingual direction in the fracture resistance of the dental crown. Relevant results were summarized and evaluated. The risk of bias was also assessed in the studies. Results: Initial screening of databases resulted in 249 studies, of which 109 were excluded for being duplicates. Of 140 eligible pa-pers, fourteen studies met the inclusion criteria and were selected for full-text read-ing. Of these, two studies were excluded for not having access to the full article. All selected articles were classified as low risk of bias. Conclusion: Based on the studies, it is possible to conclude that the use of a transfixed post in the crown increases the fracture resistance of weakened and directly restored teeth. \u0000 \u0000 \u0000","PeriodicalId":213881,"journal":{"name":"Journal of Research in Dentistry","volume":"16 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113935118","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}

{"title":"An unusual repair of perforating internal inflammatory root resorption; a case report of endodontic treatment","authors":"Roberto Prescinotti, C. Bramante, A. Bramante, Lorena de Mello Alcântara Garrido, Victor Feliz Pedrinha, F. D. de Andrade","doi":"10.59306/jrd.v10e2202216-20","DOIUrl":"https://doi.org/10.59306/jrd.v10e2202216-20","url":null,"abstract":"Internal inflammatory root resorption (IIRR) can occur as a serious complication of dental trauma which leads to progressive loss of the root structure. An early diagnosis could influence the therapeutic approach, but endodontic treatment becomes a challenge with a doubtful prognosis. The present report described an unusual clinical presentation of an IIRR with perforation resulting from a trauma four years previous. A 15-year-old female patient was presented to our service with pain in the maxillary incisor region. Intraoral radiography revealed a large radioloucent area compatible with IIRR, communicating with the periodontium in the middle third on the distal root face of the right central incisor. The root canal of the right central incisor was chemo-mechanically prepared. The calcium hydroxide (CH) intracanal medication was used and renewed periodically four times. The root canal was filled only in the cervical region to the level of resorption by the inverted gutta-percha cone technique. Clinically and radiographically, all follow-up examinations revealed an asymptomatic tooth, evidencing periapical tissue repair and new bone formation. The tooth remained asymptomatic 3 years afterwards. The present case report supports the idea of executing satisfactory intracanal decontamination by chemo-mechanical preparation, thus creating a favourable environment for tissue repair.","PeriodicalId":213881,"journal":{"name":"Journal of Research in Dentistry","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121789264","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}

{"title":"EFFECT OF ENDODONTIC IRRIGATION CONTAMINATION ON DENTIN FOR ADHESIVE RESTORATIONS","authors":"Luan Gregori Teixeira, Wesley Misael Krabbe, Ricardo Abreu da Rosa, Marcus Vinicius Reis Só, Leandro Azambuja Reichert, Lucas M. Silveira","doi":"10.59306/jrd.v10e1202201-08","DOIUrl":"https://doi.org/10.59306/jrd.v10e1202201-08","url":null,"abstract":"This study aimed to evaluate if 2.5% sodium hypochlorite compromises the adhesion of bonding materials. The factors in the study were the irrigation solutions in two levels: 2.5% sodium hypochlorite and saline solution; and the adhesive systems used in three levels: three-step adhesive, universal adhesive, and two-step self-etch adhesive systems. The answer variable used was the microshear bond strength obtained through a universal testing machine and fracture mode. Six groups were obtained (n=10) : Etch-and-rinse/Saline (saline solution + 3-step adhesive system - Scotchbond Multipurpose, 3M ESPE); Universal/saline (saline solution + universal adhesive system – Prime&Bond,); Self-etch/saline (saline solution + 2-step self-etch adhesive systems - Clearfil SE Bond); Etch-and-rinse/Hypo (sodium hypochlorite 2,5% + 3-step adhesive system - Scotchbond Multiuso); Universal/Hypo (sodium hypochlorite 2,5% + universal adhesive system – Prime&Bond); Self-etch/Hypo (sodium hypochlorite 2,5% + 2-step self-etch adhesive system - Clearfil Se Bond). The specimens were obtained from 60 healthy bovine incisors. The crowns were separated from the roots, and the regularization of the buccal surface was performed. The groups received saline solution and 2.5% sodium hypochlorite for 30 minutes, respectively. A matrix of 1mm and 3mm oh height was stabilized by Scotch tape to obtain the resin sticks. Afterward, the bond strength test was performed in a universal testing machine at 1mm/min speed. The data were analyzed with normality Shapiro-Wilk, two-way ANOVA, and Tukey’s tests (p<0.001). Etch-and-rinse and Self-etch adhesives presented the highest bond strength values after irrigation with saline solution and 2.5% sodium hypochlorite, respectively (P < 0.01). The irrigation with 2.5% sodium hypochlorite decreased the bond strength values of Etch-and-rinse and Universal (P < 0.01). On the other hand, 2.5% sodium hypochlorite improved the bond strength values of Self-etch (P < 0.01). In conclusion, 2.5% sodium hypochlorite negatively impacted the bond strength of Etch-and-rinse and Universal but improved the adhesion of Self-etch.","PeriodicalId":213881,"journal":{"name":"Journal of Research in Dentistry","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124079754","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}

{"title":"EVALUATION OF THE DENTINAL TUBULE PENETRATION OF AN ENDODONTIC BIOCERAMIC SEALER AFTER THREE FINAL IRRIGATION PROTOCOLS","authors":"Angélica Fensterseifer Lemos, Gislene Cristina Vertuan, T. Weissheimer, C. Michel, Gabriel Barcelos Só, Ricardo Abreu da Rosa, M. H. Hungaro Duarte, Marcus Vinicius Reis Só","doi":"10.59306/jrd.v10e1202214-19","DOIUrl":"https://doi.org/10.59306/jrd.v10e1202214-19","url":null,"abstract":"Introduction: This study aimed to evaluate the dentinal tubule penetration of an endodontic bioceramic sealer, Sealer Plus BC, after three final irrigation protocols. Methods: Thirty distobuccal roots of maxillary molars were selected. Root canal preparation was performed up to an #40.06 instrument (X1 Blue) under 2.5% sodium hypochlorite irrigation. Specimens were randomly divided into three groups (n=10), according to the final irrigation protocol: G-NaOCl (2.5% sodium hypochlorite + PUI), G-SS (0.9% saline solution + PUI) and G-H20 (Deionized water + PUI). After final irrigation protocols, all specimens were irrigated with phosphate buffer solution. Root canal obturation was performed using the single cone technique and Sealer Plus BC, stained with a specific fluorophore. Specimens were transversely sectioned and each root third was evaluated in a confocal scanning laser microscopy. Images obtained were analyzed for sealer penetration in the dentinal tubules.\u0000Results: Dentinal tubule penetration of Sealer Plus BC was not observed in any root third, regardless of the final irrigation protocol investigated.\u0000Conclusions: Sealer Plus BC dentinal tubule penetration was not observed after none of the protocols tested. Dentinal tubule penetrability of Sealer Plus BC may be related to other factors rather than the final irrigation protocol.","PeriodicalId":213881,"journal":{"name":"Journal of Research in Dentistry","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128143959","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}

{"title":"A comparison of the physicochemical properties of AH Plus Jet with samples taken from the beginning, middle and final portions of the automix syringe system","authors":"Járcio Victorio Baldi, B. Cavalini Cavenago, Ana Flávia Almeida Barbosa, I. Gomes de Moraes, Emmanuel João Nogueira Leal Silva","doi":"10.59306/jrd.v10e1202209-13","DOIUrl":"https://doi.org/10.59306/jrd.v10e1202209-13","url":null,"abstract":"Aim To evaluate physicochemical properties and semi-quantitative elemental analysis of AH Plus Jet with samples from the beginning, middle and final portions of the automix syringe system.\u0000Methodology Three experimental groups based on the source of the material used (beginning, middle and final portion) were established for each of the evaluated properties. Setting time, flow and radiopacity were evaluate following ANSI/ADA n. 57 specification. Set specimens was used in the semi-quantitative elemental analysis in an energy-dispersive X ray spectroscopy and scanning-electron microscopy (EDS/SEM). Statistical analysis was performed using one-way ANOVA followed by Tukey test (P<0.05).\u0000Results Flow, setting time, solubility and EDS/SEM tests showed no significant differences among the three portions of the automix syringe (P>0.05). Radiopacity test showed significant differences in the beginning of the syringe comparing to the middle and final portions (P<0.05). EDS/SEM analysis identified the presence of C, O, Al, Ca, Zr and W. The element Al, however, was found only in the final portion of the syringe.\u0000Conclusions The results of AH Plus Jet suggested an adequate ratio of the components, without segregation between organic and inorganic components, since the results of setting time, flow, solubility and EDS/SEM analysis presented similar values regardless of the portion of the syringe from where the sealer was taken.","PeriodicalId":213881,"journal":{"name":"Journal of Research in Dentistry","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124735582","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}

{"title":"The effectiveness of rotary and reciprocating techniques in curved root canals retreatment: a micro-CT analysis.","authors":"Ana Paula Silva, Lilian Bottaro Purper, Carolina Bender Hoppe, Lucas Siqueira Pinheiro, Vânia Regina Camargo Fontanella, Fabiana Soares Grecca","doi":"10.19177/jrd.v9e5202115-19","DOIUrl":"https://doi.org/10.19177/jrd.v9e5202115-19","url":null,"abstract":"Introduction: Different NiTi rotary systems have been developed to improve efficiency and retreatment success rates. Aim: To evaluate the Protaper Universal retreatment system and WaveOne instrument in removing the filling material from curved canals during retreatment. Materials and Methods: Thirty mesial root canals of extracted human mandibular molar teeth were randomly allocated into 2 groups (n=15). In the PT group, retreatment was performed with ProTaper Universal Retreatment according to the manufacturer’s instructions. In the WO group, was used WaveOne Primary. ProTaper Universal F2 and F3 were used to achieve the apical diameter in both groups. The samples were scanned by microcomputed tomography pre and postoperatively to evaluate the filling material remaining. The percentage of material filling was compared between groups using Student’s T test and in the same group among thirds was compared using Kruskal-Wallis followed by Dunn’s post hoc test. Results: The filling material remaining was not statistically different between the groups (p≥0.05). The apical third presented a greater amount of remaining filling material when compared with the cervical third for both groups (p<0.05). Conclusion: Rotary and reciprocating techniques can effectively, but not completely, remove the filling materials from the root canal system. The apical third presented a more significant amount of remaining filling material.","PeriodicalId":213881,"journal":{"name":"Journal of Research in Dentistry","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133377066","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}

{"title":"O USO DO XILITOL NA PREVENÇÃO DA CÁRIE DENTÁRIA – REVISÃO DE LITERATURA","authors":"Hérica Adad Ricci-Donato, Patrícia Domingos, Julia Delicio Modesto de Paula, Letícia Franco Muñoz","doi":"10.19177/jrd.v9e520217-14","DOIUrl":"https://doi.org/10.19177/jrd.v9e520217-14","url":null,"abstract":"","PeriodicalId":213881,"journal":{"name":"Journal of Research in Dentistry","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123891144","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}