A retrospective clinical study on the evaluation of the survival rate and marginal bone resorption of implant placement immediately after tooth extraction
박상래, 문미리, 이슬기, 조혜현, 박혜인, 이용빈,
소속 상세정보
박상래 ( Park Sang-Rae ) - Hankook General Hospital Department of Oral and Maxillofacial Surgery
문미리 ( Moon Mi-Ri ) - Hankook General Hospital Department of Oral and Maxillofacial Surgery
이슬기 ( Lee Seul-Ki ) - Hankook General Hospital Department of Oral and Maxillofacial Surgery
조혜현 ( Jo Hye-Hyun ) - Hankook General Hospital Department of Oral and Maxillofacial Surgery
박혜인 ( Park Hye-In ) - Hankook General Hospital Department of Oral and Maxillofacial Surgery
이용빈 ( Lee Yong-Bin ) - Hankook General Hospital Department of Oral and Maxillofacial Surgery
KMID : 1034220210130010029
Abstract
Purpose: The purpose of this study was to analyze the clinical results of screw retained type and locking taper type implants immediately placed in the extraction site to determine the implant survival rate and to analyze the marginal bone resorption of both types of implants during the healing process.
Materials & Methods: From January 1, 2012 to December 31, 2016, 211 implants placed immediately after tooth extraction in 158 patients at Cheongju Hankook Hospital were followed up for up to 6 years for survival rate and mesiodistal marginal bone resorption. The implants used were 96 screw retained type (AF) implants and 115 locking taper type (SF) implants from SNUCONE®.
Results: 1) Two out of 211 implants in a total of 158 patients failed, resulting in a survival rate of 99.05%. The cause of the failed implant was the lack of initial fixation power due to lack of bone quality and bone mass. 2) The marginal bone resorption was 0.44 ± 0.59 mm in the mesial marginal bone and 0.39 ± 0.71 mm in the distal marginal bone for about 4 years after the prosthesis was installed, and very good results were obtained. In detail, in AF implants, mesial bone resorption was 0.41 ± 0.58 mm, distal marginal bone resorption was 0.38 ± 0.83 mm, and in SF implants, mesial marginal bone resorption was 0.46 ± 0.59 mm, and distal marginal bone resorption was 0.39 ± 0.58 mm, there was no statistically significant difference between the two groups (P > 0.05).
Conclusions: Previously, there were not many papers comparing the screw retained type implant and the locking taper type implant in implants placed immediately after tooth extraction, so this study was conducted. If the initial fixation with the alveolar bone is secured when the implant is placed immediately after tooth extraction, it is thought that a high predictive treatment result can be obtained not only for screw retained type implants but also for locking taper type implants.
키워드
Immediate implant placement; Marginal bone resorption; Survival rate
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