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Factors Affecting Primary Stability on Sites of Alveolar Ridge Preservation Using Porcine-derived Bone Minerals
Journal of Korean Dental Science ; : 1-11, 2021.
Article in English | WPRIM | ID: wpr-915365
ABSTRACT
Purpose@#The alveolar ridge preservation (ARP) is widely conducted for implant placement. However, experimental results using deproteinized porcine bone mineral (DPBM) have been scarce. This retrospective study evaluated factors affecting the primary stability of implants in an area where ARP was performed using DPBM. @*Materials and Methods@#Thirty-eight patients were divided into two groups based on the primary stability, with torque value of 30 Ncm as borderline. To determine the factors that affect the primary stability of implants, we collected data from patientsmedical records including age, sex, reentry time, socket location, remaining bone wall at the time of extraction, and type of collagen membrane, as well as from radiographs and histomorphometric analysis.

Result:

The results showed statistically significant difference for the remaining extraction socket wall (P=0.014), residual graft (P=0.029), and fibrovascular tissue (P=0.02) between the two groups. There was an insignificant tendency toward the time of reentry surgery (P=0.052) and location (P=0.077). All implants placed in sites using DPBM functioned well up to 3 years. @*Conclusion@#Within the limitations of the present study, extraction socket wall, residual graft, and fibrovascular tissue can affect the primary stability at the time of implant placement on grafted sites using DPBM and collagen membranes. In addition, reentry time and locations can be considered. In future studies, comparative experiments in quantified models will be required to supporting the findings.
Full text: Available Index: WPRIM (Western Pacific) Type of study: Observational study / Prognostic study Language: English Journal: Journal of Korean Dental Science Year: 2021 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Type of study: Observational study / Prognostic study Language: English Journal: Journal of Korean Dental Science Year: 2021 Type: Article