Sharma Gaurav, Nagpal Archna
Department of Oral Medicine and Radiology, Sudha Rustagi College of Dental Science and Research, Faridabad, Haryana 121002, India.
Department of Oral Medicine and Radiology, PDM Dental College & Research Institute, Bahadurgarh, Haryana 124507, India.
Int Sch Res Notices. 2014 Nov 10;2014:756516. doi: 10.1155/2014/756516. eCollection 2014.
Aim. The purpose of this study was to investigate the prevalence of transmigrated canines in a north Indian population and association with gender, side, associated pathologies, and dental anomalies. Subjects and methods. The prospective study consisted of panoramic radiographs of 3000 patients from two dental colleges in north India. The panoramic radiographs were screened for radiographically identified position of the transmigrated tooth, retained canine, and other coexisting dental anomalies. Results. The overall prevalence of transmigrated canines (15 mandibular and 5 maxillary) was 0.66%. The prevalence of mandibular transmigrated canine was 0.5% and maxillary transmigrated canine was 0.16%. All the transmigrated canines were unilateral. The age range was 15-53 years (average age 24.1 years) and there were 12 males (60%) and 8 females (40%). Type 1 mandibular canine transmigration was the commonest type found in our study (10 cases), followed by types 2 and 4 (2 cases each) and 1 case of type 5 transmigration. Conclusion. The prevalence of transmigrated canines in the north Indian population was 0.66% and no gender predilection was evident. The transmigrated canines have a low complication rate (10.0%) and no correlation with other dental anomalies was found. Type 3 canine is the rarest form of mandibular canine transmigration.
目的。本研究旨在调查印度北部人群中移位尖牙的患病率及其与性别、侧别、相关病理情况和牙齿异常的关联。
对象与方法。这项前瞻性研究包括来自印度北部两所牙科学院的3000名患者的全景X线片。对全景X线片进行筛查,以确定移位牙、滞留尖牙的影像学位置以及其他并存的牙齿异常情况。
结果。移位尖牙的总体患病率为0.66%(下颌15颗,上颌5颗)。下颌移位尖牙的患病率为0.5%,上颌移位尖牙的患病率为0.16%。所有移位尖牙均为单侧。年龄范围为15 - 53岁(平均年龄24.1岁),其中男性12例(60%),女性8例(40%)。1型下颌尖牙移位是本研究中最常见的类型(10例),其次是2型和4型(各2例)以及1例5型移位。
结论。印度北部人群中移位尖牙的患病率为0.66%,未发现明显的性别倾向。移位尖牙的并发症发生率较低(10.0%),且未发现与其他牙齿异常存在相关性。3型尖牙是下颌尖牙移位最罕见的形式。