Brito Manoel, Moreira Gil, Normanha João Américo, Faria-e-Silva André Luis, Camilo Carla Cristina, Savioli Ricardo Novak, Saquy Paulo César
Inter-institutional PhD Program, UNIMONTES - State University of Montes Claros, Montes ClarosMG, Brazil.
ItaúnaMG, Brazil.
Braz Dent J. 2013 Nov-Dec;24(6):575-9. doi: 10.1590/0103-6440201302358.
Maxillary molars present variable root canal and root morphologies. This report describes the endodontic management of two cases of midbuccal canals found in maxillary molars. Midbuccal canals were present in a maxillary first molar with a single buccal root (Case 1), and in a maxillary second molar with three buccal roots (Case 2). An assessment of the internal configuration of these teeth was performed using cone-beam computed tomography (CBCT). Magnification with a dental operating microscope, surgical loupes, and the use of an endodontic explorer enabled the identification of the midbuccal canal orifices. The root canals in both cases were chemomechanically prepared and filled. Postobturation radiographic images revealed four (one midbuccal, two mesiobuccal and one palatal) and five (one midbuccal, two mesiobuccal, one distobuccal and one palatal) root canals, which were filled in Cases 1 and 2, respectively. Complex canal configurations of maxillary molars including the presence of midbuccal canals were presented. CBCT was a valuable tool in this diagnosis, as it provided a precise description of these unusual anatomical variations.
上颌磨牙呈现出多样的根管和牙根形态。本报告描述了上颌磨牙中发现的两例颊侧中部根管的牙髓治疗情况。颊侧中部根管存在于一例有单个颊根的上颌第一磨牙（病例1）和一例有三个颊根的上颌第二磨牙（病例2）中。使用锥形束计算机断层扫描（CBCT）对这些牙齿的内部结构进行了评估。通过牙科手术显微镜、手术放大镜放大以及使用牙髓探查器，得以识别颊侧中部根管口。两例病例的根管均采用化学机械预备并充填。充填后影像学图像显示，病例1和病例2分别充填了四条根管（一条颊侧中部、两条近中颊侧和一条腭侧）和五条根管（一条颊侧中部、两条近中颊侧、一条远中颊侧和一条腭侧）。呈现了上颌磨牙复杂的根管形态，包括颊侧中部根管的存在情况。CBCT在该诊断中是一种有价值的工具，因为它能对这些不寻常的解剖变异进行精确描述。
