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Histologic wound healing in studies using different ridge preservation protocols: A review
Brian L Mealey1, Francis Keeling1, A Archontia Palaiologou1
1Department of Periodontics, University of Texas Health Science Center at San Antonio, School of Dentistry, San Antonio, Texas, USA.
Clinical Advances in Periodontics
|March 7, 2024
Summary
Alveolar ridge preservation (ARP) using demineralized bone allografts and longer healing times (4-5 months) promotes greater vital bone formation for dental implant osseointegration. Interindividual variability in bone healing is common.
Area of Science:
- Dental surgery
- Bone regeneration
- Implant dentistry
Background:
- Alveolar ridge preservation (ARP) aims to minimize bone loss after tooth extraction.
- Successful ARP is crucial for dental implant osseointegration.
- Wound healing involves new vital bone formation within the extraction socket.
Purpose of the Study:
- To evaluate factors influencing vital bone formation after ARP.
- To compare different graft materials and healing times.
- To understand histomorphometric outcomes of ARP procedures.
Main Methods:
- Histomorphometric examination of bone core biopsies.
- Analysis of vital bone, residual graft material, and connective tissue.
- Comparison of allografts (demineralized vs. mineralized) and xenografts.
- Evaluation of varying healing periods before implant placement.
Main Results:
- Demineralized bone allografts yield more vital bone than mineralized allografts alone.
- Longer healing times (4-5 months) increase vital bone and decrease residual graft.
- Xenografts (bovine, porcine) show comparable vital bone formation.
- Connective tissue percentage remains relatively stable across studies.
Conclusions:
- Graft material type and healing duration significantly impact vital bone and residual graft percentages.
- Interindividual variability in bone formation is substantial, regardless of protocol.
- Longer healing periods enhance outcomes, particularly with demineralized bone allografts.
