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Abaloparatide Enhances Bone Regeneration in Extraction Socket Dental Implant Defects: An Experimental In Vivo Study
Jessica Latimer1, Birtan Yilmaz1, Balazs Feher1,2,3
1Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, USA.
Clinical Oral Implants Research
|January 10, 2025
Summary
Abaloparatide (ABL) treatment improved bone regeneration in extraction sockets and accelerated bone formation around dental implants in rats. This anabolic drug shows promise for enhancing alveolar bone healing and osseointegration.
Area of Science:
- Biomedical Engineering
- Oral and Maxillofacial Surgery
- Endocrinology
Background:
- Abaloparatide (ABL) is a synthetic parathyroid hormone-related protein analog used to treat osteoporosis by increasing bone mineral density.
- The effect of ABL on alveolar bone regeneration and dental implant osseointegration is not well understood.
Purpose of the Study:
- To evaluate the impact of systemic ABL administration on tooth extraction socket healing.
- To assess the influence of ABL on dental implant osseointegration in a preclinical rodent model.
Main Methods:
- Sprague-Dawley rats received daily subcutaneous injections of ABL or vehicle.
- Animals underwent tooth extraction and/or dental implant placement with standardized bone defects.
- Micro-computed tomography and histomorphometry were used for analysis at various time points.
Main Results:
- ABL significantly increased bone volume fraction and bone mineral density in regenerated extraction sockets.
- Systemic ABL treatment led to greater trabecular bone mineral density in the femur.
- Histomorphometry confirmed increased mineralized bone area in extraction sockets and around implants with ABL treatment.
Conclusions:
- Systemic ABL administration enhances osteogenesis in extraction sockets before implant placement.
- ABL accelerates peri-implant bone formation during the early stages of healing in this rodent model.
