title: Human histologic evaluation of a six-year-old threaded implant retrieved from a subject with osteoporosis.
abstract: OBJECTIVE
  The aim of this case report was to present the evaluation of the bone-to-implant contact in an implant retrieved from a subject with osteoporosis after six years of load.
  
  
  BACKGROUND
  Systemic conditions associated with osteoporosis have been postulated to contribute to the severity of alveolar bone loss. The increase in human life expectancy, the increased number of elderly subjects who are partially or totally edentulous, and the use of dental implants for oral habilitation in subjects with osteoporosis has raised several questions.
  
  
  METHODS
  A 68-year-old woman with postmenopausal osteoporosis received a prosthetic evaluation of an implant-supported restoration. Histologically, the peri-implant bone appeared healthy. The peri-implant bone appeared in close contact with the implant surface, whereas marrow spaces could be detected in other areas along with prominently stained cement lines. The mean of bone-to-implant contact was 62.51+1.96.
  
  
  CONCLUSIONS
  The results of the evaluation of the dental implant reported here suggest the presence of osteoporosis may not be a contra-indication for implant placement at least after osseointegration has already been established.
authors.affiliation: Department of Periodontology, Dental Research Division at Guarulhos University in Guarulhos, SP, Brazil. leandrodemelo@ig.com.br
authors.forename: Leandro
authors.initials: L
authors.lastname: de Melo
authors.forename: Adriano
authors.initials: A
authors.lastname: Piattelli
authors.forename: Giovanna
authors.initials: G
authors.lastname: Lezzi
authors.forename: Susana
authors.initials: S
authors.lastname: d'Avila
authors.forename: Elton Golçalves
authors.initials: EG
authors.lastname: Zenóbio
authors.forename: Jamil Awad
authors.initials: JA
authors.lastname: Shibli
mesh_terms: D000368:Aged; D000075202:Contraindications; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D019094:Dental Prosthesis, Implant-Supported; D020878:Device Removal; D005260:Female; D006801:Humans; D007576:Jaw, Edentulous, Partially / Q000150:complications / Q000628:therapy; D016348:Osseointegration; D015663:Osteoporosis, Postmenopausal / Q000150:complications
chemical_list: D015921:Dental Implants