Effect of mineralized dentin matrix on the prognosis of bone defect and retained root after coronectomy

Objective To investigate the impact of mineralized dentin matrix (MDM) on the prognosis on bone regeneration and migration of retained roots after coronectomy. Materials and methods Patients were divided into three groups based on the type of bone graft after coronectomy: Group C ( n = 20, collagen), Group T ( n = 20, tricalcium phosphate (TCP) + collagen), and Group D ( n = 20, MDM + collagen). CBCT scans, conducted immediately and 6 months after surgery, were analyzed using digital software. Primary outcomes, including changes in bone defect depth and retained root migration distance, were evaluated 6 months after surgery. Results After 6 months, both Groups D and T exhibited greater reduction of the bone defect and lesser retained root migration than Group C ( p