title: Alveolar ridge preservation with deproteinized bovine bone graft and collagen membrane and delayed implants.
abstract: To evaluate clinically and radiographically an alveolar ridge, preservation technique with deproteinized bovine bone graft and absorbable collagen membrane and then restoration with delayed implants were done. The study included 30 patients. The trial group's sockets were filled with deproteinized bovine bone graft (Bio-Oss) and covered with absorbable collagen membrane (Bio-Gide). The control group's sockets healed without any treatment. Panoramic radiograph and computed tomography were taken immediately after graft and 3 and 6 months later to evaluate the height, width, and volume change of the alveolar ridge bone. Dental implants were inserted in all sockets at 6 months, and osseointegration condition was evaluated in the following 12 months. All sockets healed uneventfully. In the trial group, the mean (SD) height reduction of the alveolar ridge bone was 1.05 (0.24) mm at 3 months and 1.54 (0.25) mm at 6 months. The width reduction was 1.11 (0.13) mm at 3 months and 1.84 (0.35) mm at 6 months. Bone volume reduction was 193.79 (21.47) mm at 3 months and 262.06 (33.08) mm at 6 months. At the same trend, in the control group, the bone height reduction was 2.12 (0.15) mm at 3 months and 3.26 (0.29) mm at 6 months. The width reduction was 2.72 (0.19) mm at 3 months and 3.56 (0.28) mm at 6 months. Bone volume reduction was 252.19 (37.21) mm at 3 months and 342.32 (36.41) mm at 6 months. There was a significant difference in alveolar ridge bone height, width, and volume reduction in the 2 groups. The osseointegration condition had no significant difference between the 2 groups. This study suggested that the deproteinized bovine bone graft and absorbable collagen membrane were beneficial to preserve the alveolar ridge bone and had no influence on the osseointegration of delayed implant.
authors.affiliation: From the Department of Stomatology, State Key Laboratory of Military Stomatology, School of Stomatology, Fourth Military Medical University, Xi'an, People's Republic of China.
authors.forename: Chaoyuan
authors.initials: C
authors.lastname: Pang
authors.forename: Yuxiang
authors.initials: Y
authors.lastname: Ding
authors.forename: Hongzhi
authors.initials: H
authors.lastname: Zhou
authors.forename: Ruifeng
authors.initials: R
authors.lastname: Qin
authors.forename: Rui
authors.initials: R
authors.lastname: Hou
authors.forename: Guoliang
authors.initials: G
authors.lastname: Zhang
authors.forename: Kaijin
authors.initials: K
authors.lastname: Hu
mesh_terms: D020341:Absorbable Implants; D000328:Adult; D016301:Alveolar Bone Loss / Q000145:classification; D000539:Alveolar Process / Q000000981:diagnostic imaging; D000540:Alveolar Ridge Augmentation / Q000379:methods*; D000818:Animals; D018786:Bone Substitutes / Q000627:therapeutic use*; D002417:Cattle; D003094:Collagen; D003758:Dental Implantation, Endosseous / Q000379:methods*; D015921:Dental Implants; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008567:Membranes, Artificial; D008875:Middle Aged; D008903:Minerals / Q000627:therapeutic use*; D016348:Osseointegration / Q000502:physiology; D011859:Radiography; D020390:Tooth Socket / Q000601:surgery; D055815:Young Adult
chemical_list: C106416:Bio-Gide; C077540:Bio-Oss; D018786:Bone Substitutes; D015921:Dental Implants; D008567:Membranes, Artificial; D008903:Minerals; D003094:Collagen