ORAL REHABILITATION OF UNSTABLE OCCLUSION DUE TO SEVERELY DESTRUCTED FIRST PERMANENT MOLARS

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Journal of the Korean Academy of Pediatric Dentistry 2003;30(2):204-209.
Published online May 31, 2003.

ORAL REHABILITATION OF UNSTABLE OCCLUSION DUE TO SEVERELY DESTRUCTED FIRST PERMANENT MOLARS

제1대구치의 광범위 치관파괴로 인한 불안정한 교합의 재건

백병주, 이선영, 김재곤, 전소희

전북대학교 치과대학 소아치과학교실 및 구강생체과학연구소

Abstract

A 9-year old boy visited Department of Pediatric dentistry, Chonbuk National University Hospital due to unstable occlusion. He had permanent 1st molars destructed severely by dental caries and lost vertical stop. He could not occlude in the same position on closing of the jaw since he could not find his centric occlusion. The treatment plan was made, which was oral rehabilitation with crown restorations on permanent 1st molars based on clinical and radiographic examinations and centric relation of the jaw. Treatment plan consisted of endodontic treatment, crown lengthening and restoration of the occlusal vertical dimension (OVD) with gold crown by 3mm-increase of OVD. After endodontic and periodontal treatments, temporary crowns made of acrylic resin were set for assessment of tolerance to an increased OVD. After a month for tolerance, final prosthetics were made and set temporarily. In a month, gold crowns were set finally. Immediately after setting, the patient showed anterior open bite, but at the appointment after 4 months, he showed normal overjet, overbite and stable occlusion.

Key Words: Occlusion, Oral rehabilitation, Centric relation, Occlusal vertical dimension, Crown