title: Saving periodontally "hopeless teeth" using calcium sulfate and demineralized freeze-dried bone allograft.
abstract: As the techniques of guided tissue regeneration (GTR) and implant placement evolve, the decision of when a tooth should be saved using GTR, or extracted and an implant placed, becomes much more complicated. This article discusses treating teeth with GTR that have traditionally had hopeless prognoses.
authors.forename: D
authors.initials: D
authors.lastname: Anson
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016301:Alveolar Bone Loss / Q000000981:diagnostic imaging / Q000601:surgery*; D016025:Bone Transplantation / Q000379:methods*; D002133:Calcium Sulfate / Q000627:therapeutic use*; D003764:Dental Materials / Q000627:therapeutic use*; D005260:Female; D005612:Freeze Drying; D016557:Guided Tissue Regeneration, Periodontal / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D018579:Patient Selection; D011379:Prognosis; D011859:Radiography
chemical_list: D003764:Dental Materials; D002133:Calcium Sulfate