Prevalence and characteristics of impacted teeth in Korean orthodontic patients at ten university dental hospitals

• 발행기관: 대한치과교정학회
• 저자명: Youn-Kyung Choi Sung-Hun Kim Yong-Il Kim Seong-Sik Kim Soo-Byung Park Dong-Soon Choi Ho-Jin Kim Kyung-A Kim Mo-Hyeon Lee Sung-Hwan Choi Sung-Kwon Choi Kyungmin Clara Lee Young-Mi Jeon Sewoong Oh Seorin Jeong
• 간행물 정보: 『The Korean Journal of Orthodontics』제55권 제3호, 234~241쪽, 전체 8쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2025.05.25

국문 초록

Objective: This study aimed to investigate the prevalence and characteristics of impacted teeth (ITs) in orthodontic patients at university dental hospitals in Korea. Methods: This study included 14,774 patients who visited the Department of Orthodontics at 10 university dental hospitals in Korea between 2020 and 2022 and underwent orthodontic diagnosis. The prevalence and characteristics of ITs were investigated using orthodontic diagnostic records, radiographs, and diagnostic casts. Results: The prevalence of ITs, excluding third molar impaction, in Korean orthodontic patients was 13.6% (n = 2,014). The prevalence of ITs in pediatric orthodontic patients was 24.5% (n = 1,614). Of these patients, 68.2% had one IT, 27.5% had two ITs, 24.3% had bilateral IT, and 75.7% had unilateral IT. The most frequent IT was the maxillary canine (50.1%), followed by the mandibular second molar (11.7%), and maxillary second premolar (9.6%). An abnormal eruption path (46.5%) was the most frequent etiology. Orthodontic traction after surgical exposure (70.6%) was the most frequent treatment option. Among the patients with ITs, 29.8% had other dental anomalies, such as tooth agenesis (8.7%), microdontia (8.0%), and supernumerary teeth (5.1%). Furthermore, 50.8% had complications such as cystic lesions (18.3%), transposition (17.7%), and root resorption (14.8%). Among the patients with maxillary canine impaction, 62.2% had labial maxillary canine impaction and 21.1% had palatal maxillary canine impaction. Conclusions: The prevalence of ITs in Korean orthodontic patients at university dental hospitals was high, particularly in pediatric orthodontic patients.

목차

INTRODUCTION

MATERIALS AND METHODS

RESULTS

DISCUSSION

CONCLUSIONS

키워드

Prevalence Impacted tooth Orthodontic patient University dental hospital