Factors affecting survival and usefulness of implants placed in vascularized free composite grafts used in post-head and neck cancer reconstruction.
Clin Implant Dent Relat Res
; 14(2): 266-72, 2012 Apr.
Article
in En
| MEDLINE
| ID: mdl-19843102
ABSTRACT
BACKGROUND:
Bone-containing vascularized grafts have been used successfully to reconstruct post-cancer surgical defects. Dental implants can be placed in these bone-containing grafts to allow implant-supported prosthodontic reconstruction of these patients.PURPOSE:
The aim of this study was to evaluate the survival of dental implants used in the rehabilitation of subjects treated with bone-containing vascularized grafts to compare usability of implants placed at the time of reconstruction and after healing. MATERIALS ANDMETHODS:
A cross-sectional study was undertaken to examine survival rates of implants placed in vascularized bone-containing grafts either immediately at the time of surgical reconstruction or after 3 months healing. Other factors such as graft type, whether radiation therapy was given, and implant type were recorded.RESULTS:
A total of 41 patients had 145 implants placed in 47 vascularized bone-containing flaps. Increased failure rate of implants was seen in immediately placed implants. There was also a significant increase in the number of osseointegrated implants that were prosthodontically unusable or sub-optimally placed in the immediate placement group. Radiation therapy was associated with a significant increase in failure rate. Modern implant surfaces appeared to perform better than machined/turned surfaces. Graft donor site did not influence implant survival.CONCLUSION:
This study demonstrated the difficulties encountered with immediate placement of dental implants at the time of post-cancer reconstructive surgery.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Dental Implants
/
Bone Transplantation
/
Plastic Surgery Procedures
/
Dental Implantation, Endosseous
/
Head and Neck Neoplasms
Type of study:
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Limits:
Humans
Language:
En
Journal:
Clin Implant Dent Relat Res
Journal subject:
ODONTOLOGIA
Year:
2012
Document type:
Article
Affiliation country:
United kingdom