{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T17:23:37Z","timestamp":1787765017667,"version":"build-2784847793"},"reference-count":14,"publisher":"Ovid Technologies (Wolters Kluwer Health)","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"abstract":"\n A\n BSTRACT<\/jats:sc>\n <\/jats:title>\n \n Introduction:<\/jats:title>\n \n In vitro<\/jats:italic>\n fracture resistance of extracted mandibular molars treated with various access cavity designs, including traditional endodontic cavity (TradAC), conservative\/contracted endodontic cavity (ConsAC), ninja endodontic cavity (UltraAC), truss endodontic cavity (TrussAC), caries-driven access cavity (CariesAC), and intact teeth, is the focus of this study.\n <\/jats:p>\n <\/jats:sec>\n \n Materials and Methods:<\/jats:title>\n Six groups of 20 mandibular molars, totaling 120, were used in the investigation. While the other five groups underwent various access cavity preparations, chemomechanical preparation, and obturation procedures before being repaired with composite resin, Group 1 was left unaltered (the control). A 6 mm round head tip was used to apply the fracture force, which was measured in newtons, at a crosshead speed of 1 mm\/min until fracture developed.<\/jats:p>\n <\/jats:sec>\n \n Results:<\/jats:title>\n According to the current study, the intact control group had the maximum fracture resistance. The access cavity groups\u2019 mean values were maximum in CariesAC followed by ConsAC, TrussAC, UltraAC, and TraditonalAC respectively.<\/jats:p>\n <\/jats:sec>\n \n Conclusion:<\/jats:title>\n While among the four minimally invasive designs, CariesAC showed a higher fracture resistance despite the results being statistically insignificant, TradAC had a significantly lower resistance than other conservative access cavity designs.<\/jats:p>\n <\/jats:sec>","DOI":"10.4103\/jpbs.jpbs_1038_23","type":"journal-article","created":{"date-parts":[[2023,12,22]],"date-time":"2023-12-22T08:01:25Z","timestamp":1703232085000},"update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":0,"title":["Comparative Evaluation of Different Endodontic Access Cavity Designs with Different Burs\u2014An in vitro Experimental Insight into the Aspect of Fracture Resistance"],"prefix":"10.4103","author":[{"given":"Akshayraj K.","family":"Langaliya","sequence":"first","affiliation":[{"name":"Department of Conservative Dentistry and Endodontics (Ph.D. Scholar,) Gujarat University, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Girish","family":"Parmar","sequence":"additional","affiliation":[{"name":"Department of Conservative Dentistry and Endodontics (Additional Director, Dean and Ph.D. Guide), Government Dental College and Hospital, Gujarat University, Ahmedabad, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Drashti","family":"Panchal","sequence":"additional","affiliation":[{"name":"Department of Conservative Dentistry and Endodontics (ex- intern), AMC Dental College and Hospital, Ahmedabad, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jainish","family":"Thakkar","sequence":"additional","affiliation":[{"name":"Department of Dentistry (undergraduate student), AMC Dental College and Hospital, Ahmedabad, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jinali","family":"Shah","sequence":"additional","affiliation":[{"name":"Department of Conservative Dentistry and Endodontics (ex- postgraduate student), AMC Dental College and Hospital, Ahmedabad, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rushvi","family":"Patel","sequence":"additional","affiliation":[{"name":"Department of Dentistry (ex- intern), AMC Dental College and Hospital, Ahmedabad, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","published-online":{"date-parts":[[2023,12,20]]},"reference":[{"key":"R1-20240829","doi-asserted-by":"crossref","first-page":"800","DOI":"10.1016\/j.joen.2018.01.020","article-title":"The effects of endodontic access cavity preparation design on the fracture strength of endodontically treated teeth:Traditional versus conservative preparation","volume":"44","author":"\u00d6zy\u00fcrek","year":"2018","journal-title":"J 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teeth","volume":"5","author":"Abu-Awwad","year":"2019","journal-title":"Clin Exp Dent Res"},{"key":"R11-20240829","doi-asserted-by":"crossref","first-page":"109","DOI":"10.1007\/s00784-017-2268-y","article-title":"Impact of contracted endodontic cavities on fracture resistance of endodontically treated teeth:A systematic review of in vitro studies","volume":"22","author":"Silva","year":"2018","journal-title":"Clin Oral Investig"},{"key":"R12-20240829","doi-asserted-by":"crossref","first-page":"1160","DOI":"10.1016\/j.joen.2013.12.012","article-title":"Impacts of conservative endodontic cavity on root canal instrumentation efficacy and resistance to fracture assessed in incisors, premolars, and molars","volume":"40","author":"Krishan","year":"2014","journal-title":"J Endod"},{"key":"R13-20240829","doi-asserted-by":"crossref","first-page":"1779","DOI":"10.1016\/j.joen.2016.08.028","article-title":"Impacts of contracted endodontic cavities on instrumentation efficacy and biomechanical 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