Debonding에 의한 법랑질 Crack의 증가

• 영문명: THE INCREASE OF ENAMEL CRACK IN DEBONDING TEETH
• 발행기관: 대한치과교정학회
• 저자명: 염정배(Jeong-Bae Yeom) 이병태(Byung-Tae Rhee)
• 간행물 정보: 『The Korean Journal of Orthodontics』제17권 제1호, 85~91쪽, 전체 7쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1987.06.30

영문 초록

The aim of this study was to clarify whether bonding/debondmg procedure will affect the occurance of enamel crack. The frequency of enamel crack was compared between before-bonding and after-debonding on 200 human extracted teeth Each facial surface of the tooth was divided in 9 fragments A presence of crack, which was classified by its direction as vertical, horizontal and oblique crack, was surveyed in each fragment. Number of all cracks in facial surface was 1355 at before-bonding, and 1605 at after-debonding, so it revealed significant increase rate of 18.5%, but compared by fragment, cracks were significantly increased in OC, OD, CC and GC fragments. All kinds of cracks were significantly increased, especially increase rate of oblique crack reached 54.9%. The increase rate of cracks was not superior at any fragment or region, but some evidence was seen in CC fragment. Judging from the above, increase of crack is unavoidable with bonding/debonding procedures.