Mandibular molar with five root canals

Abstract

The purpose of this study was to demonstrate the importance of knowledge of the internal anatomy of root canals for the success of endodontic treatment. Lack of knowledge of anatomic variations and their characteristics in different teeth has been pointed out as one of the main causes of endodontic therapy failure. In this report, the authors describe the endodontic treatment of a mandibular first molar with five root canals, evaluate the rate of occurrence of this number of canals, and discuss the importance of their identification and treatment.

Maxillary Molars With Morphologic Variations of the Palatal Root Canals: A Report of Four Cases

“…Unusual root and root canal morphologies associated with molars have been recorded in several studies in the literature (2)(3)(4). Pécora et al (4) evaluated the anatomy of 370 maxillary molars and found that the maxillary first, second, and third molars showed three canals in 75%, 58%, and 68% of the teeth, respectively.…”

Management of a failed endodontic treatment for a maxillary second molar with two separate palatal roots

“…Extra root may also present in seldom conditions as fused or separate root. 1 Several studies 7-13 confirmed the morphological variations in the root canal system in the palatal root of the maxillary second molar. Christie et al 5 proposed a classification for four-rooted maxillary second molars into three types.…”

“…Distobuccal and palatal canal usually have one canal each, although on rare occasions, either may have an extra canal. Extra root may also present in seldom conditions as fused or separate root . Stone and Stroner reported approximately 2% of maxillary molars with more than one palatal canal when examined 500 extracted molars, while Libfeld and Rotstein found only 0.4% incidence of extra palatal canal in 200 upper second molars and 1000 radiographs.…”

Avaliação da presença do canal cavo inter-radicular em molares pelo método da microscopia eletrônica de varredura

“…Devido à complexidade da anatomia interna da cavidade pulpar e ao fracasso nos tratamentos, o estudo e a compreensão da mesma tornaram-se ferramentas essenciais para auxiliar o profissional a enfrentar os desafios rotineiros do tratamento endodôntico 7 .…”