Multiple infroccluded primary molars with permanent successors : a case report

Yun,  Soo-mi; Lee,  Je-woo; Ra,  Ji-young

J Korean Dent Assoc > Volume 58(4); 2020 > Article

The Journal of The Korean Dental Association 2020;58(4):206-212.
Published online April 30, 2020.

계승치가 존재하는 유구치의 다발성 저위교합 : 증례 보고

윤수미¹, 이제우², 라지영³

^¹원광대학교 치과대학 소아치과학교실
^²원광대학교 치과대학 소아치과학교실
^³원광대학교 치과대학 소아치과학교실

Multiple infroccluded primary molars with permanent successors : a case report

Soo-mi Yun¹, Je-woo Lee², Ji-young Ra³

¹Wonkwang University, College of Dentistry, Department of Pediatric Dentistry
²Wonkwang University, College of Dentistry, Department of Pediatric Dentistry and Dental Research Institute
³Wonkwang University, College of Dentistry, Department of Pediatric Dentistry and Dental Research Institute

Abstract

The infraocclusion is defined as a condition, in which teeth are present with their occlusal surface below the neighboring teeth, and long after, they reach occlusion. The most common cause of infra-occlusion is thought to be ankylosis. The treatment options for patient with infraocclusion of primary molars are observation, restoration and surgical removal of the affected teeth. We report a case of 8 - year - old boy who visited our clinic for consultation of orthodontic treatment. The patient was diagnosed by multiple infraoccluded primary molars with permanent successors. Surgical extraction were performed on primary molars. After follow-up of 7 months period, #44, 45 were erupted and the degree of posterior open bite was decreased.

Key Words: Tooth ankylosis;Infraocclusion;primary molars;extraction;