Barbosa Daniel Almeida Ferreira, Maferano Eduardo Frederico Eduardo, Teixeira Renata Cordeiro, Kurita Lúcio Mitsuo, Pimenta Alynne Vieira de Menezes, Silva Paulo Goberlânio de Barros, Chaves Filipe Nobre, Gurgel Marcela Lima, Costa Fábio Wildson Gurgel
DDS, MSc, PhD, Department of Oral and Maxillofacial Radiology, Federal University of Ceará, Ceará, Fortaleza, Brazil.
DDS, MSc, PhD student, Postgraduate Program in Dentistry, School of Dentistry, Federal University of Ceará, Ceará, Fortaleza, Brazil.
J Clin Exp Dent. 2024 Nov 1;16(11):e1379-e1385. doi: 10.4317/jced.61607. eCollection 2024 Nov.
The accessory mental foramen is characterized by small foramina in the surrounding area of the mental foramen with communication with the mandibular canal. The aim of this research was to evaluate epidemiological and radiomorphometric aspects of the accessory mental foramen (AMF) using cone beam computed tomography (CBCT) in Brazilian individuals.
This was a cross-sectional, quantitative, retrospective descriptive study with 250 CBCT scans of dentate individuals in the anterior mandibular region, aged between 18 and 69 years. Presence/absence, linear measurements (length, height, and width), anatomical distances (to the vestibular, lingual, alveolar bone cortices, base of the mandible, and to the apex of the adjacent tooth) were evaluated concerning the accessory mental foramen.
Of the 250 scans, the mean age of the patients was 47.44±12.57 years, with 150 female and 100 male individuals. The total prevalence of AMF was 7.2% (n=18) of cases, with 5.2% (n=13) female individuals and 2% (n=5) male individuals. Bilateral presence of AMF was observed in one case (0.4%). Regarding laterality, AMF presence was observed in 10 cases (4.0%) on the right side and 8 (n=3.2%) on the left side. The mean distance from AMF to the mental foramen was 4.67 mm. The mean horizontal diameter was 1.06mm, and the mean vertical diameter was 0.95mm across the entire sample.
The prevalence of the AMF was 7.2% with 95% confidence intervals (95% CI), showing a slight inclination towards female individuals. Accessory mental foramen, mental foramen, cone beam computed tomography, anatomical variation.
副颏孔的特征是在颏孔周围区域有小孔，并与下颌管相通。本研究的目的是使用锥形束计算机断层扫描（CBCT）评估巴西人群中副颏孔（AMF）的流行病学和放射形态计量学特征。
这是一项横断面、定量、回顾性描述性研究，对250例年龄在18至69岁之间的下颌前部有牙个体的CBCT扫描进行分析。评估了副颏孔的存在与否、线性测量（长度、高度和宽度）、解剖学距离（到前庭、舌侧、牙槽骨皮质、下颌骨基部以及相邻牙齿根尖的距离）。
在250例扫描中，患者的平均年龄为47.44±12.57岁，其中女性150例，男性100例。AMF的总患病率为7.2%（n = 18），其中女性个体患病率为5.2%（n = 13），男性个体患病率为2%（n = 5）。在1例（0.4%）中观察到双侧存在AMF。关于侧别，右侧有10例（4.0%）存在AMF，左侧有8例（3.2%）。AMF到颏孔的平均距离为4.67mm。整个样本的平均水平直径为1.06mm，平均垂直直径为0.95mm。
AMF的患病率为7.2%，95%置信区间（95%CI）显示略倾向于女性个体。副颏孔、颏孔、锥形束计算机断层扫描、解剖变异。
