title: Histomorphometric evaluation of a threaded, sandblasted, acid-etched implant retrieved from a human lower jaw: a case report.
abstract: The purpose of this study was to histomorphometrically evaluate the bone-to-implant contact and bone area around a titanium implant retrieved from a human lower jaw. A screw-shaped titanium implant (sandblasted and acid-etched surface) was removed from a 68-year-old male after having been in function for 40 months because of a fracture of the abutment screw. Following the implant removal, an undecalcified section was obtained. The histomorphometric analysis showed a rate of 75.40% of bone-to-implant contact and 89.30% of bone area filling within the limits of the implant threads. The surrounding bone healed in a well-organized pattern and could not be differentiated from the original alveolus. The histologic evidence showed a high degree of osseointegration in a threaded, sandblasted, and acid-etched implant retrieved from a human lower jaw after functional loading for 40 months.
authors.affiliation: Department of Periodontology, Dental School of Araraquara, University of the State of São Paulo (UNESP) Araraquara, Brazil. celsosakakura@yahoo.com.br
authors.forename: Celso Eduardo
authors.initials: CE
authors.lastname: Sakakura
authors.forename: Francisco Humberto
authors.initials: FH
authors.lastname: Nociti
authors.forename: Guilherme Paulo Scarpel
authors.initials: GP
authors.lastname: Mello
authors.forename: Elaine Duarte Artuso
authors.initials: ED
authors.lastname: de Mello
authors.forename: Maria Lúcia Rubo
authors.initials: ML
authors.lastname: de Rezende
mesh_terms: D000134:Acid Etching, Dental; D000368:Aged; D020906:Air Abrasion, Dental; D000539:Alveolar Process / Q000473:pathology; D000044:Dental Abutments; D015921:Dental Implants; D017267:Dental Prosthesis Design; D019232:Dental Restoration Failure; D006801:Humans; D008297:Male; D008334:Mandible / Q000473:pathology* / Q000601:surgery; D016348:Osseointegration / Q000502:physiology*; D010012:Osteogenesis / Q000502:physiology; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry; D014945:Wound Healing / Q000502:physiology
chemical_list: D015921:Dental Implants; D014025:Titanium