Some clinical studies have provided evidence that Cone Beam computed tomography (CBCT) scanning is an important resource in assessment of root canal systems notably to identify MB2 canals in maxillary molars as CBCT scans allow in vivo dental investigation in axial, sagittal and coronal planes simultaneously. The current study was undertaken to ...

美亚全新一代口腔cbct，能够在冠状位、矢状位、轴位以及3d影像上清晰、立体、直观地显示出mb2的形态及走向，可以更好地在临床中发现mb2，满足口腔临床诊疗的需要。

The objectives of this study were to assess the prevalence and configuration of a second mesiobuccal canal in the MB root of permanent maxillary first molars in the western Saudi sub-population using CBCT, to determine the location where MB2 joins MB at different root levels and to measure the mean distance between both MB and MB2 canal orifice ...

Aim: To compare detection of the second mesiobuccal (MB2) canal in maxillary molar teeth using cone-beam computed tomography (CBCT) with different voxel sizes against conventional radiographic examination when the MB1 was unprepared, prepared and filled.

The aim of this study was to develop a deep learning model to automatically detect and segment unobturated mesial buccal 2 (MB2) canals on endodontically obturated maxillary molars depicted in CBCT studies.

2017年4月21日 · CBCT provides better results than other methods such as intraoral radiography, microscopy and visual observation. It is an effective and non-destructive tool to study the presence and location of the MB2 canal in vivo, preoperative planning of its access, unlike ultrasound microscopy, where locating the MB2 is random after gaining access ...

To detect the MB2 canal, the observation and measurements were done 1 mm apically to the pulpal floor to standardize the methodology. The central point of the MB1, MB2 and P canals were located geometrically. Then straight lines were projected, connecting different points: line MB1-P and line MB1-MB2.

这篇研究的目的是通过体内锥形束CT（CBCT）评估世界范围内MB2的发生率，并了解它可能与性别、年龄、侧面和根管结构的相关性。 观察者从21个不同地域标定以获得相似的CBCT观察方法，并从250颗之前就已进行检查的上颌第一磨牙处收集数据。 对测试者之间以及之内进行评估。 样本量为5250颗磨牙，并通过初审来界定。 所收集的数据包括：MB2的存在与否、性别、年龄、侧面、每颗牙齿牙根的数量和近中颊根的结构。 使用z检验评估各独立组百分比，以此来分析各 …

6 天之前 · Overall, CBCT scans provided consistent assessments of dentin. Clinical relevance: Selecting appropriate NiTi systems minimizes dentin removal in MB1 and MB2 danger zones, reducing the risk of perforation in the furcation area. CBCT reliably assesses dentin thickness, aiding clinical decisions and improving endodontic retreatment outcomes.

2013年2月2日 · To compare detection of the second mesiobuccal (MB2) canal in maxillary molar teeth using cone-beam computed tomography (CBCT) with different voxel sizes against conventional radiographic examination when the MB1 was unprepared, prepared and filled.