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계승치가 존재하는 유구치의 다발성 저위교합 : 증례 보고

Multiple infroccluded primary molars with permanent successors : a case report

대한치과의사협회지 2020년 58권 4호 p.206 ~ 212
윤수미 ( Yun Soo-Mi ) - Wonkwang University College of Dentistry Department of Pediatric Dentistry

 ( Lee Je-Woo ) - Wonkwang University College of Dentistry Department of Pediatric Dentistry
 ( Ra Ji-Young ) - Wonkwang University College of Dentistry Department of Pediatric Dentistry

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.

키워드

Tooth ankylosis; Infraocclusion; primary molars; extraction
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