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Ridge Alterations following Socket Preservation Using a Collagen Membrane in Dogs
Chengqi Lyu1, Zhengwei Shao1, Derong Zou1
1Department of Stomatology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
Biomed Research International
|March 20, 2020
Summary
Collagen membranes alone effectively preserve alveolar bone after tooth extraction, promoting superior bone regeneration compared to combinations with calcium phosphate cement (CPC). This socket preservation technique enhances bone quality and quantity for future dental implant procedures.
Area of Science:
- Periodontology
- Dental Implantology
- Regenerative Medicine
Background:
- Tooth extraction often leads to alveolar ridge resorption, complicating dental implant placement.
- Socket preservation techniques aim to maintain ridge morphology for predictable implant outcomes.
- Absorbable collagen membranes and calcium phosphate cement (CPC) are investigated for socket preservation.
Purpose of the Study:
- To compare new bone regeneration quality and quantity using collagen membranes alone versus membranes with CPC particles in dog extraction sockets.
- To evaluate the efficacy of socket preservation in maintaining alveolar ridge dimensions.
Main Methods:
- Six dogs underwent mandibular premolar extraction.
- Extraction sites were treated with: collagen membrane alone, collagen membrane + CPC, or left empty (control).
- Evaluations included cone-beam computed tomography (CBCT), sequential labeling, and histological analysis over 6 months.
Main Results:
- Collagen membrane group showed significantly higher buccal bone height at 4 and 6 months compared to other groups.
- Higher mineral apposition rates and stained bone area were observed in the membrane group.
- Histological analysis confirmed greater newly formed bone in sockets treated with collagen membranes alone.
Conclusions:
- Collagen barrier membranes provide superior socket protection and preserve the buccal bone wall effectively.
- Absorbable membranes alone resulted in better quality and quantity of regenerated bone within the socket.
- Collagen membranes without CPC are recommended for socket preservation to enhance bone regeneration.
