title: Effects of implant anchorage on midface prostheses.
abstract: BACKGROUND
  Acquired midface defects may produce functional and psychologic impairments that adversely effects a patient's quality of life. Conventional prostheses may lack adequate retention and stability, diminishing the patient's confidence that the prosthesis will remain in place during routine activities.
  
  
  OBJECTIVE
  The experience with and patient response to endosseous implants in prosthetic restoration of midface defects is presented in this study.
  
  
  METHODS
  Five patients in age from 36 to 88 years were treated with 19 titanium endosseous root-form implants to provide retention and stability for prostheses. Patients responded to a questionnaire rating overall use, effectiveness, and satisfaction of their prosthesis, before and after the use of implants.
  
  
  RESULTS
  All 19 implants were judged to be osseointegrated at abutment connection. Of the 17 implants used prosthetically, 14 (82%) remained osseointegrated and 3 (18%) failed. Analysis of the questionnaire tends to indicate an improvement of the quality of life for the patients with an implant-retained prosthesis.
authors.affiliation: Department of Otolaryngology, University of Iowa Hospital and Clinics, Iowa City, USA.
authors.forename: M R
authors.initials: MR
authors.lastname: Arcuri
authors.forename: W E
authors.initials: WE
authors.lastname: LaVelle
authors.forename: A
authors.initials: A
authors.lastname: Fyler
authors.forename: G
authors.initials: G
authors.lastname: Funk
mesh_terms: D000203:Activities of Daily Living; D000223:Adaptation, Psychological; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001294:Attitude to Health; D003758:Dental Implantation, Endosseous; D005145:Face / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008437:Maxilla / Q000601:surgery; D008447:Maxillofacial Prosthesis; D019931:Maxillofacial Prosthesis Implantation; D008875:Middle Aged; D009666:Nose / Q000601:surgery; D016348:Osseointegration; D010158:Palatal Obturators; D017060:Patient Satisfaction; D019736:Prostheses and Implants; D011474:Prosthesis Design; D011475:Prosthesis Failure; D019919:Prosthesis Implantation; D011788:Quality of Life; D013499:Surface Properties; D014025:Titanium
chemical_list: D014025:Titanium