title: [Filling of apical bone defects after tooth root resection with collagen--a comparative clinical study].
mesh_terms: D001047:Apicoectomy; D002986:Clinical Trials as Topic; D003094:Collagen / Q000627:therapeutic use*; D005500:Follow-Up Studies; D006801:Humans; D012387:Root Canal Filling Materials / Q000627:therapeutic use*; D012389:Root Canal Obturation / Q000379:methods*
chemical_list: D012387:Root Canal Filling Materials; D003094:Collagen
vernacular_title: Auffüllung des apikalen Knochendefektes nach Wurzelspitzenresektion mit Kollagen--eine vergleichende klinische Studie.