구개측 매복된 상악 견치의 교정적 치험례
ORTHODONTIC TREATMENT OF THE PALATALLY IMPACTED MAXILLARY CANINE
감동훈, 김정욱, 한세현,
소속 상세정보
감동훈 ( ) - 서울대학교 치과대학 소아치과학교
김정욱 ( ) - 서울대학교 치과대학 소아치과학교
한세현 ( ) - 서울대학교 치과대학 소아치과학교
KMID : 0358919980250010127
Abstract
결론
저자는 서울대학교병원 소아치과에 내원한 환자중 상악 견치의 구개측 매복으로 진단된
증례에 대하여 외과적 치관 노출과 full fixed orthodontic appliance를 사용한 교정적 견인을
시행하여 양호한 결과를 얻었다.
#초록#
An impacted tooth is defined pathologically as a tooth that remains under the mucosa
of inside bone without eruption of the crown after a specific period of eruption.
Clinically. the term includes those teeth, even before eruption period, that are not
expected to erupt due to shape, position and alignment of tooth and lack of space.
Canine is prone to impaction more than other teeth because it has the longest time to
develop and a complex route from the place of formation to the site of eruption. The
impaction incidence of maxillary canine is reported 0.92∼3.3% (Ferguson, 1990) In 1995
Orton reported that the incidence was 0.92∼2.2% and palatal impaction was more
frequent than labial impaction(85%:15%). In 1969 Johnston presented it was more
common to woman than to man(3:1).
The etiology includes systemic discase such as endocrine disorder, cleidocranial
dysostosis, irradiation, Crouzon syndrome, ricketts, facial hemihypertrophy and hereditary
and to local problems such as ectopic position of the tooth, distance of tooth in the
dental arch and mucosal barrier due to gingival fibrosis.
The maxillary canine is especially important as it has the longest root, provides
guidance for lateral movement of the mandible and masticatory function and assumes an
important role esthetically as It is located at mouth angle. if left untreated, it may cause
migration and external, internal resorption of adjacent teeth, loss of arch length,
formation of dentigerous cyst or tumors, infection and referred pain as well as
malposition of the tooth. Therefore, periodic examination of the development and eruption
of the maxillary canine is especially important in a glowing child.
This case study presents the results of treatment of palatally impacted maxillary
canine utilizing surgical exposure and orthodontic tooth movement on patients visiting
SNUDH dept. of pediatric dentistry.
키워드
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