Histological comparison of different compressive forces on particulate grafts during alveolar ridge preservation: a prospective proof-of-concept study
이성조, 강대영, 조인우, 신현승, 신승일, Fischer Kai R., 박정철,
소속 상세정보
이성조 ( Lee Sung-Jo ) - Dankook University College of Dentistry Sejong Dental Hospital Department of Periodontology
강대영 ( Kang Dae-Young ) - Dankook University College of Dentistry Department of Periodontology
조인우 ( Cho In-Woo ) - Dankook University College of Dentistry Department of Periodontology
신현승 ( Shin Hyun-Seung ) - Dankook University College of Dentistry Department of Periodontology
신승일 ( Shin Seung-Il ) - Kyung Hee University School of Dentistry Department of Periodontology
( Fischer Kai R. ) - University of Zurich Division of Periodontology and Peri-implant Diseases
박정철 ( Park Jung-Chul ) - Dankook University College of Dentistry Department of Periodontology
Abstract
Purpose: The aim of this study was to determine the impact of different compressive forces on deproteinized bovine bone mineral (DBBM) particles covered by native bilayer collagen membrane (NBCM) during alveolar ridge preservation (ARP) in the molar area, and to identify any histomorphometric and clinical differences according to the compressive force applied.
Methods: Sockets were filled with DBBM after tooth extraction, and different compressive forces (30 N and 5 N, respectively) were applied to the graft material in the test (30 N) and control (5 N) groups. The DBBM in both groups was covered with NBCM in a double-layered fashion. A crossed horizontal mattress suture (hidden X) was then made. A core biopsy was performed using a trephine bur without flap elevation at the implant placement site for histomorphometric evaluations after 4 months. The change of the marginal bone level was measured using radiography.
Results: Twelve patients completed the study. The histomorphometric analysis demonstrated that the mean ratios of the areas of new bone, residual graft material, and soft tissue and the implant stability quotient did not differ significantly between the groups (P>0.05). However, the mean size of the residual graft material showed a significant intergroup difference (P<0.05).
Conclusions: The application of 2 compressive forces (5 N, 30 N) on particulate DBBM grafts during open-healing ARP in the posterior area led to comparable new bone formation, implant feasibility and peri-implant bone level.
키워드
Alveolar bone grafting; Alveolar ridge augmentation; Bone substitutes; Histology; Tooth extraction
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