Implant Placement Using the Bone Ring Technique With and Without Membrane Placement: A Preclinical 12-Month Study in Dogs

Haga-Tsujimura, Maiko; Nakahara, Ken; Igarashi, Kensuke; Kobayashi, Eizaburo; Katagiri, Hiroki; Saulacic, Nikola (2023). Implant Placement Using the Bone Ring Technique With and Without Membrane Placement: A Preclinical 12-Month Study in Dogs. The journal of oral implantology, 49(2), pp. 187-196. American Association of Implant Dentistry 10.1563/aaid-joi-D-21-00220

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The bone ring technique is applied for vertical augmentation, in which the dental implant and autogenous block bone graft are simultaneously inserted. We investigated the healing of bone around implants placed simultaneously using the bone ring technique with and without membrane placement after a 12-month healing period. Vertical bone defects were created on both sides of the mandible of Beagle dogs. Implants were inserted into the defects through bone rings and fixed with membrane screws as healing caps. The augmented sites on one side of the mandible were covered with a collagen membrane. Samples were harvested 12 months after implantation and assessed histologically and by microcomputed tomography analysis. All implants remained throughout the healing period; however, except for 1 implant, they showed lost caps and/or exposure to the oral cavity. The implants had contact with newly formed bone despite frequent bone resorption. The surrounding bone appeared mature. The medians of bone volume and percentages of total bone area and bone-to-implant contact within the bone ring were slightly higher in the group with membrane placement than in that without membrane placement. Nevertheless, none of the evaluated parameters were significantly affected by the membrane placement. In the present model, soft tissue complication was frequent, and the membrane application did not reveal the effect at 12 months after implant placement using the bone ring technique. Sustained osseointegration and maturation of surrounding bone were observed in both groups after a 12-month healing period.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Craniomaxillofacial Surgery

UniBE Contributor:

Saulacic, Nikola

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0160-6972

Publisher:

American Association of Implant Dentistry

Language:

English

Submitter:

Claudine Howald

Date Deposited:

11 Apr 2024 08:43

Last Modified:

11 Apr 2024 08:43

Publisher DOI:

10.1563/aaid-joi-D-21-00220

PubMed ID:

36796077

Additional Information:

animal experimentation; bone graft; bone ring technique; collagen membrane; dental implants

URI:

https://boris.unibe.ch/id/eprint/195735

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