Maxillary first molar with two distobuccal root canals: a case report / 华西口腔医学杂志

The root and canal anatomy of maxillary first molar is very complicated. The incidence of having two canals in the mesiobuccal root of maxillary first molar is higher than that in its distobuccal root. This article described a maxillary first molar with five root canals, including two canals in mesiobuccal and distobuccal roots.

Dos conductos en la raíz distovestibular del primer molar maxilar: revisión bibliográfica y reporte de caso clínico / Maxillary first molar with two canals in the distobuccal root: a review of the literature and report of a clinical case

La incidencia de dos conductos en la raíz distovestibular en un primer molar maxilar es una variación anatómica poco frecuente del sistema de conductos. Los investigadores han demostrado múltiples forámenes, conductos adicionales, furcaciones, deltas, conexiones entre conductos, conductos en forma de C y conductos accesorios. Este reporte de caso clínico presenta el tratamiento de un primer molar maxilar con dos conductos en la raíz ovestibular. Se muestra clínicamente la presencia dedos conductos distovestibulares tipo 2-1, los cuales se instrumentaron manualmente con técnica corono- apical con limas K-Flexofi le de 25 mm y se obturaron con la técnica de condensación lateral, con conos de gutapercha, conos accesorios número FF, F y cemento Sealapex. Después del tratamiento se selló el diente con cemento temporal y se refirió para realizar la restauración defi nitiva...

The presence of two canals in the distobuccal root of a maxillary fi rst molar is a rare anatomical variation of the canal systems. Investigators have shown multiple foramina, additional canals, furcations, deltas, intercanal connections, C-shaped canals, and accessory canals. This clinical case reports the clinical treatment of a maxillary fi rst molar with two canals in the distobuccal root. We present a clinical case involving the presence of the two 2-1-type distobuccal canals. Manual instrumentation was performed using the crown-down technique with the aid of 25 mm K-fl exofi le fi les. The canals were fi lled using the lateral condensation technique and gutta-percha cones, FF and F accessory cones, and Sealapex cement. Following the treatment, the tooth was sealed with temporary cement and the patient was referred for fi nal restoration. The aim of this paper is to examine the anatomical variations that can occur in the root canal system and the technologies that can be used to correctly identify the location of additional canals.

Endodontic Management of Maxillary Molar With Six Root Canals - A Case Report.

The aim of the present case report is to describe the unusual root canal anatomy of maxillary first molar with six canals, three in mesiobuccal root, two in distobuccal root and one in palatal root. This article highlights the importance of modifying the access opening and magnification in location of the additional canal orifices.

A study of the distobuccal root canal orifice of the maxillary second molars in Chinese individuals evaluated by cone-beam computed tomography

As is commonly understood, the root canal morphology of the maxillary molars is usually complex and variable. It is sometimes difficult to detect the distobuccal root canal orifice of a maxillary second molar with root canal treatment. No literature related to the distobuccal root canals of the maxillary second molars has been published. Objective: To investigate the position of the distobuccal root canal orifice of the maxillary second molars in a Chinese population using cone-beam computed tomography (CBCT). Material and methods: In total, 816 maxillary second molars from 408 patients were selected from a Chinese population and scanned using CBCT. The following information was recorded: (1) the number of root canals per tooth, (2) the distance between the mesiobuccal and distobuccal root canal orifice (DM), (3) the distance between the palatal and distobuccal root canal orifice (DP), (4) the angle formed by the mesiobuccal, distobuccal and palatal root canal orifices (∠PDM). DM, DP and ∠PDM of the teeth with three or four root canals were analyzed and evaluated. Results: In total, 763 (93.51%) of 816 maxillary second molars had three or four root canals. The distance between the mesiobuccal and distobuccal orifice was 0.7 to 4.8 mm. 621 (81.39%) of 763 teeth were distributed within 1.5-3.0 mm. The distance between the palatal and distobuccal orifice ranged from 0.8 mm to 6.7 mm; 585 (76.67%) and were distributed within 3.0-5.0 mm. The angle (∠PDM) ranged from 69. 4º to 174.7º in 708 samples (92.80%), the angle ranged from 90º to 140º. Conclusions: The position of the distobuccal root canal orifice of the maxillary second molars with 3 or 4 root canals in a Chinese population was complex and variable. Clinicians should have a thorough knowledge of the anatomy of the maxillary second molars.