title: Preservation of ridges utilizing hydroxyapatite.
mesh_terms: D000540:Alveolar Ridge Augmentation; D000543:Alveoloplasty / Q000379:methods*; D001862:Bone Resorption / Q000517:prevention & control; D006801:Humans; D006882:Hydroxyapatites; D010510:Periodontal Diseases / Q000517:prevention & control; D019736:Prostheses and Implants; D014081:Tooth Extraction
chemical_list: D006882:Hydroxyapatites