Pooja Navin Sharma, S. Sabrish, G. Prashantha, Roshan M Sagarkar, S. Mathew, Sathyashree Krishnamurthy
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引用次数: 0
摘要
下颌后磨牙区域为正畸骨骼固定提供了一个新的部位。该区域存在后磨牙孔(RMF),对该区域进行手术干预可能会导致不良后果。本研究旨在使用锥束计算机断层扫描(CBCT)数据评估RMF的特征及其与咬合面(OP)的关系。这项横断面体外观察研究涉及对136个年龄在18-40岁之间的样本(68名男性和68名女性)的CBCT数据进行分析。研究的重点是 RMF 的存在与否、是单侧还是双侧、每侧椎孔的数量以及 RMF 与 OP 的距离等因素。数据分析采用社会科学统计软件包(Statistical Package for the Social Sciences)进行,在 95% 的置信水平下,P < 0.05 具有统计学意义。单侧 RMF 的发病率高于双侧。OP上方RMF的平均距离为5.99毫米,OP下方RMF的平均距离为3.82毫米。RMF的高患病率(39%)表明,在放置迷你钢板前应评估后磨牙窝区域。OP上方的RMF发生率明显高于OP下方。
Anatomic considerations during placement of mandibular retromolar miniplates for orthodontic anchorage – A study of the characteristics of retromolar fossa
The mandibular retromolar area offers a novel site for orthodontic skeletal anchorage. It houses the retromolar foramen (RMF), and surgical interventions in this area can lead to undesirable outcomes. This study aims to assess the characteristics of the RMF and its relation to the occlusal plane (OP) using cone-beam computed tomography (CBCT) data.
This cross-sectional observational in vitro study involved the analysis of CBCT data from 136 samples (68 males and 68 females) within the age range of 18–40 years. The study focused on factors such as the presence or absence of the RMF, whether it was unilateral or bilateral, the number of foramina on each side, and the distance of the RMF from the OP. Data analysis was conducted using the Statistical Package for the Social Sciences software, with P < 0.05 deemed statistically significant at a 95% confidence level.
About 39% of the sample showed the presence of RMF. The prevalence of unilateral RMF was higher than that of bilateral RMF. The mean distance of RMF above the OP was 5.99 mm, and that below the OP was 3.82 mm.
The high prevalence (39%) of RMF suggests that the retromolar fossa region should be evaluated before the placement of mini-plates. The prevalence of RMF above the OP was significantly higher than that below the OP.