上颌埋伏尖牙的发生频率及其与切牙牙根吸收和牙齿缺失的关系。

Frequency and association of maxillary ectopic canine with incisor root resorption and dental agenesis.

机构信息

Department of Orthodontics, DIKIOHS, Dow University of Health Sciences, Karachi, Pakistan.

Department of Orthodontics, Dr Irshat-ul-Ebad Khan Institute of Oral Health Sciences, DOW University, Karachi, Pakistan.

出版信息

J Pak Med Assoc. 2021 Jan;71(1(B)):277-280. doi: 10.47391/JPMA.782.

DOI:10.47391/JPMA.782

PMID:35157664

Abstract

OBJECTIVE

To assess the frequency of maxillary ectopic canine both buccally and palatally displaced with incisor root resorption and dental agenesis.

METHODS

The cross-sectional study was conducted from April 8 to June 29, 2019, at the Department of Orthodontics, Dr. Ishrat Ul Ebad Khan Institute of Oral Health Sciences, and Dow Dental College, Dow University Of Health Sciences, Karachi, and comprised orthodontic patients diagnosed with maxillary ectopic canine eruption. Root resorption and agenesis were diagnosed on panoramic films. Root resorption was further confirmed by periapical radiographs. Data was analysed using SPSS 21.

RESULTS

Of the 98 subjects, 86(87.8%) had buccally displaced canines of which 38(44.2%) were associated with root resorption, while 12(12.2%) patients had palatally displaced canines of which 10(83.3%) had root resorption (p=0.011). Overall, 30(30.6%) lateral incisors were resorbed, 7(7.1%) both central and lateral incisors, 5(5.1%) premolars, and 6(6.1%) both lateral incisors and premolars were resorbed. Agenesis was detected in 10 (10.2%) subjects (p=0.62).

CONCLUSIONS

There was found to be no association of maxillary ectopic canines with incisor root resorption and dental agenesis.

摘要

目的

评估伴有切牙牙根吸收和牙齿缺失的上颌异位尖牙颊向和腭向移位的频率。

方法

这是一项横断面研究，于 2019 年 4 月 8 日至 6 月 29 日在卡拉奇的 Dr. Ishrat Ul Ebad Khan 口腔健康科学研究所和 Dow 牙科学院的正畸科进行，研究对象为诊断为上颌异位尖牙萌出的正畸患者。根吸收和缺失在全景片上诊断。根吸收通过根尖片进一步确认。使用 SPSS 21 进行数据分析。

结果

在 98 名受试者中，86 名（87.8%）有颊向移位的尖牙，其中 38 名（44.2%）伴有牙根吸收，而 12 名（12.2%）患者有腭向移位的尖牙，其中 10 名（83.3%）有牙根吸收（p=0.011）。总体而言，30 颗（30.6%）侧切牙被吸收，7 颗（7.1%）中切牙和侧切牙，5 颗（5.1%）前磨牙，6 颗（6.1%）侧切牙和前磨牙被吸收。10 名（10.2%）受试者检测到缺失（p=0.62）。