{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2022,4,4]],"date-time":"2022-04-04T14:59:49Z","timestamp":1649084389889},"reference-count":20,"publisher":"FapUNIFESP (SciELO)","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Braz. Dent. J."],"published-print":{"date-parts":[[2014,12]]},"abstract":"<jats:p>This case report describes root canal filling performed over a large S1 ProTaper file fragment in a second mandibular molar with irreversible pulpitis. An S1 ProTaper file was fractured during the instrumentation of the mesiobuccal canal. Approximately 10 mm of file fragment remained in the apical and middle thirds of the canal. The obturation was performed over this fragment using thermomechanically compacted gutta-percha and sealer. Radiographic findings and the absence of clinical signs and symptoms at 3-year follow up indicated successful treatment. Cone-beam computed tomography images revealed absence of periapical lesion and details of intracanal file fragment related to root fillings and apex morphology. In this case, the presence of a large intracanal fractured instrument did not have a negative impact on the endodontic prognosis during the follow up evaluation period.<\/jats:p>","DOI":"10.1590\/0103-6440201302436","type":"journal-article","created":{"date-parts":[[2015,1,7]],"date-time":"2015-01-07T19:50:35Z","timestamp":1420660235000},"page":"571-575","source":"Crossref","is-referenced-by-count":1,"title":["Obturation Over an S1 ProTaper Instrument Fragment in a Mandibular Molar with Three Years of Follow-up"],"prefix":"10.1590","volume":"25","author":[{"given":"Manoel","family":"Brito-J\u00fanior","sequence":"first","affiliation":[{"name":"UNIMONTES - State University of Montes Claros,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yara Teresinha Correa","family":"Silva-Sousa","sequence":"additional","affiliation":[{"name":"UNIMONTES - State University of Montes Claros,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jo\u00e3o Felipe Bonatto","family":"Bruniera","sequence":"additional","affiliation":[{"name":"UNIMONTES - State University of Montes Claros,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carla Cristina","family":"Camilo","sequence":"additional","affiliation":[{"name":"UNIMONTES - State University of Montes Claros,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andr\u00e9 Luis","family":"Faria-e-Silva","sequence":"additional","affiliation":[{"name":"UFS - Federal University of Sergipe,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Paulo C\u00e9sar","family":"Saquy","sequence":"additional","affiliation":[{"name":"UNIMONTES - State University of Montes Claros,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"530","reference":[{"key":"ref1","doi-asserted-by":"crossref","first-page":"1057","DOI":"10.1111\/j.1365-2591.2009.01626.x","article-title":"A micro-computed tomographic evaluation of apical root canal preparation using three instrumentation techniques","volume":"42","author":"Moore J","year":"2009","journal-title":"Int Endod J"},{"key":"ref2","doi-asserted-by":"crossref","first-page":"708","DOI":"10.1016\/j.joen.2010.01.003","article-title":"Micro-computed tomographic comparison of nickel-titanium rotary versus traditional instruments in C-shaped root canal system","volume":"36","author":"Yin X","year":"2010","journal-title":"J Endod"},{"key":"ref3","doi-asserted-by":"crossref","first-page":"1031","DOI":"10.1016\/j.joen.2006.06.008","article-title":"NiTi instrument fracture and its consequences","volume":"32","author":"Parashos P","year":"2006","journal-title":"J Endod"},{"key":"ref4","doi-asserted-by":"crossref","first-page":"758","DOI":"10.1016\/j.joen.2011.02.021","article-title":"Instrument separation analysis of multi-used ProTaper Universal rotary system during root canal therapy","volume":"37","author":"Wu J","year":"2011","journal-title":"J Endod"},{"key":"ref5","doi-asserted-by":"crossref","first-page":"722","DOI":"10.1097\/01.DON.0000129963.42882.C9","article-title":"Factors influencing defects of rotary nickel-titanium endodontic instruments after clinical use","volume":"30","author":"Parashos P","year":"2004","journal-title":"J Endod"},{"key":"ref6","doi-asserted-by":"crossref","first-page":"276","DOI":"10.1016\/j.joen.2006.10.012","article-title":"Modes of failure of ProTaper nickel-titanium rotary instruments after clinical use","volume":"33","author":"Wei X","year":"2007","journal-title":"J Endod"},{"key":"ref7","doi-asserted-by":"crossref","first-page":"133","DOI":"10.1016\/j.joen.2008.10.013","article-title":"Defects in nickel-titanium instruments after clinical use. 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