Journal of the Korean Academy of Pediatric Dentistry 2006;33(4):686-692.
Published online November 30, 2006.
PERIODONTAL EVALUATION OF IMPACTED TEETH AFTER ORTHODONTIC TRACTION
조선대학교 치과대학 소아치과학교실 
매복치의 교정적 견인 후 치주적 평가
김현진, 이난영, 이상호
조선대학교 치과대학 소아치과학교실
Correspondence:  , 
Abstract
The impacted teeth were surgically exposed by the closed-eruption technique and orthodontically retracted. The subject of this study are 24 patients(Mx. insiors; 10 Mx. canines; 14) who finished their treatment. The periodontal condition of the impacted teeth and the normally erupted proximal and opposed teeth were compared and analysed. The results are the followings ; 1. When the gingival index, plaque index, pocket depth and attached gingiva in periodontal evaluation were compared, there was no significant difference between the study group and the control group (P>0.05). 2. When the alveolar bone support of the mesial and the distal surface of the maxillary central incisors and proximal teeth was compared, there was no significant difference between the study group and the control group (P<0.05). 3. When the alveolar bone support of the maxillary canines was compared, there was no significant difference between the retracted teeth and the normally erupted teeth(P>0.05). The results above showed that the surgical exposure by closed-eruption technique followed by the orthodontic retraction of the impacted teeth has a positive influence on the regeneration of gingival tissue in clinical practice and is esthetically more stable. And it is considered that the clinicians should give attention to the direction of retraction power and the maintenance of normal shape of the alveolar bone in treatment of maxillary central incisors.
Key Words: Closed-eruption technique, Orthodontic traction, Periodontal evaluation, Bone support


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