title: Healing of dehiscence defects at delayed-immediate implant sites primarily closed by a rotated palatal flap following extraction.
abstract: In 21 patients, 28 maxillary teeth were extracted because of periapical or periodontal infection, root fracture, or untreatable caries. A rotated palatal flap procedure was used to achieve primary soft tissue closure over extraction sites. At 5 to 7 weeks postextraction, 28 implants were placed. Buccal dehiscence-type defects were treated with guided bone regeneration procedures using bovine bone mineral and resorbable collagen membranes. Mean defect area at the time of implant placement (23.7 mm2, SD 11.49) was significantly reduced at uncovering (0.7 mm2, SD 0.99). The mean percentage of defect reduction (clinical bone fill) was 97% (SD 4.26). Implants placed in compromised sites shortly postextraction according to the presented 2-stage protocol gave good short-term clinical results.
authors.affiliation: Department of Periodontology, Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Israel.
authors.forename: C E
authors.initials: CE
authors.lastname: Nemcovsky
authors.forename: Z
authors.initials: Z
authors.lastname: Artzi
authors.forename: O
authors.initials: O
authors.lastname: Moses
authors.forename: I
authors.initials: I
authors.lastname: Gelernter
mesh_terms: D000328:Adult; D000368:Aged; D016301:Alveolar Bone Loss / Q000601:surgery; D000818:Animals; D001861:Bone Regeneration; D018786:Bone Substitutes; D002417:Cattle; D003758:Dental Implantation, Endosseous / Q000379:methods*; D016557:Guided Tissue Regeneration, Periodontal / Q000379:methods*; D006801:Humans; D008875:Middle Aged; D008903:Minerals; D009061:Mouth Mucosa / Q000601:surgery; D010159:Palate; D018709:Statistics, Nonparametric; D013524:Surgical Flaps; D013529:Surgical Wound Dehiscence / Q000209:etiology / Q000601:surgery*; D013997:Time Factors; D014081:Tooth Extraction / Q000009:adverse effects*; D020390:Tooth Socket / Q000601:surgery; D016896:Treatment Outcome
chemical_list: C077540:Bio-Oss; D018786:Bone Substitutes; D008903:Minerals