한국인의 상악 전치부 순측골 두께와 치은 생체형(gingival biotype)의 상관관계
Relationship between the facial bone thickness and gingival biotype of the anterior maxilla in Koreans
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목적: 한국인의 상악 전치부 순측골 두께와 치은 생체형(gingival biotype)의 분포 및 상관관계를 평가하는 것이다. 연구 재료 및 방법: 본 연구는 부산대학교치과병원에 내원한 57명의 환자, 335개의 치아를 대상으로 시행되었다. Cone Beam Computed Tomography (CBCT)를 이용하여 백악법랑경계로부터 4 mm, 6 mm, 8 mm 지점의 순측골 두께를 측정하였고, 치은 생체형은 치주탐침자를 이용하여 평가하였다. 결과: 대부분의 대상치아에서 1 mm 이하의 얇은 순측골(4 mm 지점 87%, 6 mm 지점 88%, 8 mm 지점 90%)이 우세하게 관찰되었고, 전체 대상자의 21%에서 얇은 치은 생체형이 확인되었다. 치은 생체형과 순측골 두께 사이의 유의한 상관관계는 존재하지 않았다. 결론: 성공적인 전치부 심미 임플란트 치료를 위해서는 치은 생체형 검사 같은 임상적 검사 이외에 순측골 평가를 위한 추가적 CBCT 등의 방사선 검사가 필수적이다.
Abstract
Purpose: The objects of this study were to examine the thickness of labial plate of anterior maxillary teeth and the gingival biotype in Koreans and to evaluate whether there is a correlation between the gingival biotype and the thickness of labial plate. Materials and Methods: This study was performed on 335 teeth of 57 subjects at the Pusan National University Dental Hospital. Cone Beam Computed Tomography (CBCT) was used to measure the thickness of labial plate at 4 mm, 6 mm, 8 mm from the cementoenamel junction and the gingival biotype was determined by the visibility of periodontal probe. Results: Thin facial bone less than 1 mm was observed in 87% at 4 mm, 88% at 6 mm and 90% at 8 mm. In 21% of total objects, thin gingival biotype was observed. There is no correlation between the thickness of labial plate and gingival biotype. Conclusion: Additional thorough radiographic examination such as CBCT was mandatory for aesthetic dental implant in the anterior dentition besides clinical oral examination.
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