브릿지 형태의 상부보철물 및 상부보철물의 나사풀림에 따른 타진식 임플란트 안정성 측정기기의 수치비교
Study of the Differences in a Percussion-type Implant Stability Measuring Instrument according to Bridge prosthesis and screw loosening
권연우, 김철훈, 김복주, 강선우, 김정한, 성현미,
소속 상세정보
권연우 ( Kwon Yeon-Woo ) - Dong-A University College of Medicine Department of Prosthodontics
김철훈 ( Kim Chul-Hoon ) - Dong-A University College of Medicine Department of Oral and Maxillofacial Surgery
김복주 ( Kim Bok-Joo ) - Dong-A University College of Medicine Department of Oral and Maxillofacial Surgery
강선우 ( Kang Sun-Woo ) - Dong-A University College of Medicine Department of Prosthodontics
김정한 ( Kim Jung-Han ) - Dong-A University College of Medicine Department of Oral and Maxillofacial Surgery
성현미 ( Sung Hyun-Me ) - Dong-A University College of Medicine Department of Prosthodontics
Abstract
This study aimed to investigate the effect of different conditions on the implant stability test (IST) value of three-unit implant bridges. Fifteen pairs of specimens were prepared. Two internal conical-type implants were placed in artificial bone using a torque of 35 to 45 Ncm. Three-unit monolithic zirconia bridges (Perfit ZR) were fabricated using CAD-CAM. Implant Stability Quotient (ISQ) values were measured for each implant. IST value was measured under different conditions: healing abutment, without cementation, with cementation, one prosthesis unscrewed, and two prostheses unscrewed. The results showed statistically significant differences according to the conditions (p <0.05). The lowest IST level was observed in the groups tested on healing abutment and the prosthesis without cementation. The highest IST level was observed in the groups with cemented prostheses. There was no significant difference according to screw loosening. IST values for all groups measured above 79, indicating high stability with consistent tendency. The present study implied that IST values could be used as a reference restrictedly for assessing implant stability and conditions on bridge-type prostheses.
키워드
Implant stability; AnyCheck; Implant stability test (IST)
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