Periotest를 이용한 임프란트지지 보철물의 적합도 평가에 관한 연구
AN EVALUATION OF PRECIS10N FIT OF IMPLANT-SUPPORTED PROSTHESIS USING THE PER10TEST
김영민, 배정식,
소속 상세정보
김영민 ( Kim Young-Min ) - 전남대학교 치과대학 치과보철학교실
배정식 ( Bae Jeong-Sik ) - 전남대학교 치과대학 치과보철학교실
KMID : 0362419980360040587
Abstract
In this study, the Periotest value was measured with Periotest to evaluate precision fit of the 2-unit and 3-unit implant-supported prosthesis by modifying the size and location of ill-fitted conditions. The 2-unit prosthesis was fabricated with the right implant fitted incorrectly and the 3-unit prosthesis with the right and center implant fitted incorrectly. To evaluate the effects of the ill-fitted sizes, 4 groups were divided.:The control group being the accurately fabricated sample group fitted properly. Group 1 was constructed with 40micrometer ill-fitted conditions, group 2 with 70micrometer and group 3 with 100micrometer ill-fitted conditions. The Periotest value was measured at each implant site after tightening 10Ncm. The result was follows: 1. The PTV on the ill-fitted area in the 2-unit implant-supported prosthesis increased as the ill-fitted conditions increased. There was a statistically significant difference among groups(p<0.05). In the same ill-fitted sample, the PTV depending on the measured location demonstrated a statistically significant difference (p<0.05). 2. The PTV on the ill-fitted area of the 3-unit implant-supported with an ill-fitted condition in the right implant increased as the ill-fitted conditions increased. There was a significant difference among groups (p<0.05). In the same ill-fitted sample, the PTV depending on the measured location demonstrated a statistically significant difference (p<0.05). 3. In the 3-unit implant-supported prosthesis with ill fitting conditions in the center implant, the PTV on the ill-fitted area demonstrated a statistically significant difference between the control group, group 1 and group 2 (p<0.05). In the same ill-fitted sample, the PTV depending on the measured location demonstrated significant difference between the gap side and the adjacent side with over 70micrometer ill-fitted conditions (p<0.05). The results suggest that Periotest is a valuable objective method for evaluating the precision fit of an implant superstructure.
키워드
Periotest; Periotest value; Precision fit
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