title: Clinical application of zygomatic implants for rehabilitation of the severely resorbed maxilla: a clinical report.
abstract: OBJECTIVE
  A zygomatic implant can be an effective device for rehabilitation of the severely resorbed maxilla. If zygomatic implants are used, onlay bone grafting or sinus augmentation would likely not be necessary. Where an anterior onlay bone graft is required, extension of the graft in the posterior region could be reduced. The results of the application of zygomatic implants in 9 patients and clinical evaluation of this therapy are reported.
  
  
  METHODS
  Nine patients received a total of 15 zygomatic implants. Six to 8 months elapsed for healing before second-stage surgery was performed. Six months after prosthetic treatment, patients' opinions were solicited by means of a questionnaire.
  
  
  RESULTS
  No implant was removed at the time of abutment connection surgery or during the follow-up period. In many cases, the zygomatic implant platform was located palatal to the alveolar ridge. However, no patients complained of any continuing speech impediment following superstructure fabrication. Computed tomograms taken before implant placement and 6 months after implant placement showed no sign of sinusitis in any patient.
  
  
  CONCLUSIONS
  The zygomatic implant allows shorter treatment time and hospitalization. However, there can be some problems in the application of zygomatic implants.
  
  
  CONCLUSIONS
  It is necessary to investigate long-term clinical prognosis.
authors.affiliation: Division of Oral Surgery, Fukurol Municipal Hospital, Fukuroi, Japan. hidenakai@livedoor.com
authors.forename: Hidetaka
authors.initials: H
authors.lastname: Nakai
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Okazaki
authors.forename: Minoru
authors.initials: M
authors.lastname: Ueda
mesh_terms: D000328:Adult; D000368:Aged; D001862:Bone Resorption / Q000601:surgery*; D000044:Dental Abutments; D015921:Dental Implants; D019094:Dental Prosthesis, Implant-Supported; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007575:Jaw, Edentulous / Q000534:rehabilitation / Q000601:surgery; D008297:Male; D008439:Maxillary Diseases / Q000601:surgery*; D008875:Middle Aged; D017060:Patient Satisfaction; D011379:Prognosis; D016896:Treatment Outcome; D014945:Wound Healing / Q000502:physiology; D015050:Zygoma / Q000601:surgery*
chemical_list: D015921:Dental Implants