Clinical evaluation of the zygoma implant: 3-year follow-up at 16 clinics.
OBJECTIVE
The purpose of this clinical investigation was to evaluate the treatment outcome with zygoma implants with regard to implant survival, patient satisfaction, and function of prosthesis replacement after 3 years.


METHODS
The treatment outcome of 76 patients treated with 145 zygoma fixtures at 16 centers was evaluated with regard to implant survival. Status of peri-implant mucosa and amount of plaque were registered annually. Patients' and dentists' evaluations of the functional and esthetic outcome of the treatment were assessed at delivery of prosthesis and thereafter at each follow-up visit.


RESULTS
Sixty of 76 patients were followed for 3 years after prosthetic delivery. Five of 145 placed zygoma implants failed during the course of the study resulting in an overall implant survival rate of 96.3%. At the 3-year follow-up, 75% of the implants sites were registered with normal peri-implant mucosa and 68% with no visible plaque. The patients were fully satisfied with the esthetic and functional outcome of the treatment in 86% and 71%, respectively, at the 3-year follow-up visit. All reported data from dentists scored from acceptable to excellent.


CONCLUSIONS
The multicenter study showed a high predictability of the zygoma implant-supported rehabilitation.
Kahnberg
Karl-Erik
KE
Department of Oral and Maxillofacial Surgery, Faculty of Odontology, The Sahlgrenska Academy, Göteborg University, Göteborg, Sweden.
Henry
Patric J
PJ
Hirsch
Jan-Mikael
JM
Ohrnell
Lars-Olov
LO
Andreasson
Lars
L
Brånemark
Per-Ingvar
PI
Chiapasco
Matteus
M
Gynther
Göran
G
Finne
Kaj
K
Higuchi
Kenji W
KW
Isaksson
Sten
S
Malevez
Chantal
C
Neukam
Friedrich W
FW
Sevetz
Edward
E
Urgell
Juan P
JP
Widmark
Göran
G
Bolind
Pia
P
D000328:Adult; D000368:Aged; D016301:Alveolar Bone Loss / Q000150:complications / Q000473:pathology / Q000601:surgery*; D003758:Dental Implantation, Endosseous / Q000379:methods*; D015921:Dental Implants; D019094:Dental Prosthesis, Implant-Supported; D003824:Denture, Complete; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007575:Jaw, Edentulous / Q000534:rehabilitation* / Q000601:surgery; D008297:Male; D008437:Maxilla / Q000473:pathology / Q000601:surgery; D008439:Maxillary Diseases / Q000150:complications / Q000473:pathology / Q000601:surgery*; D008443:Maxillary Sinus / Q000601:surgery; D019931:Maxillofacial Prosthesis Implantation / Q000379:methods*; D008875:Middle Aged; D017060:Patient Satisfaction; D012720:Severity of Illness Index; D016896:Treatment Outcome; D015050:Zygoma / Q000601:surgery
D015921:Dental Implants