Autogenous Particulate Dentin in Socket Site Preservation Procedures: Histologic and Histomorphometric Observations

Area of Science:

• Dental bone grafting
• Biomaterials science
• Oral surgery

Background:

• Socket preservation is crucial for maintaining alveolar ridge dimensions after tooth extraction.
• Autogenous bone grafts are gold standard but have limitations.
• Alternative biomaterials are needed for predictable socket preservation.

Purpose of the Study:

• To evaluate autogenous particulate dentin as a bone substitute for human socket preservation.
• To assess its efficacy in maintaining dimensional volume for future implant placement.

Main Methods:

• Particulate dentin (250-1,200 μm) was used to fill extraction sockets.
• Histologic analysis of hard tissue biopsies was performed after 6 months.
• Histomorphometry quantified bone-to-dentin contact, new bone, and residual dentin.

Main Results:

• De novo bone formation filled the grafted area, integrating with dentin particles.
• Newly formed bone showed direct contact with 69.1% of dentin particles.
• New bone formation averaged 38.4%, residual dentin 29.9%, and connective tissue 31.7%.

Conclusions:

• Autogenous particulate dentin is biocompatible and osteoconductive.
• It effectively maintains socket dimensions for implant placement.
• Particulate dentin serves as a suitable grafting biomaterial.