Survival analysis and clinical evaluation of implant-retained prostheses in oral cancer resection patients over a mean follow-up period of 10 years

Survival analysis of dental implants and implant-retained prostheses in oral cancer patients up to 20 years

“…2 Kaplan-Meier survival analysis for implants placed in patients with and without additional radiochemotherapy ablative surgery. However, results for patients who received radiation/radiochemotherapy are contradictory [5][6][7][8][9]. The aim of this study was therefore to evaluate the long-term survival rate and potential influencing factors of dental implants and implant-retained prostheses in oral cancer patients who had undergone surgical tumor resection without or in combination with additional radiochemotherapy.…”

“…Numerous studies reveal information on implant survival rates and clinical factors influencing these in oral cancer patients who had undergone surgical tumor resection [1,4]; however, only a few long-term studies exist [5][6][7][8][9]. Potential influencing factors such as gender or implant localization seem to have no influence on the implant survival in oral cancer patients.…”

“…Potential influencing factors such as gender or implant localization seem to have no influence on the implant survival in oral cancer patients. Results for patients who received radiation/ radiochemotherapy are contradictory [5][6][7][8][9].…”

An implant-retained obturator – a case study

“…10,11 However, compromised blood supply and potentially impaired osseointegration 12 in irradiated bone can increase early failure-rates, 13 although implant in irradiated bone still show high success rates, 14 chemotherapy for oral cancer does not seem to increase implant failure. 15 Rigid fixation of the prosthesis is essential to minimise technical and biological complications, 11 provide increased stability, as well as retention, can give superior results for an implantsupported removable prosthesis. However, for the patient described in this case, these alternative designs were rejected either because of their inability to change the implant angulation, or the demand for greater space within the prostheses which was not available.…”

A national survey of oral and maxillofacial surgeons' attitudes towards the treatment and dental rehabilitation of oral cancer patients

“…Of note is the fact that the cumulative survival rate for fi xtures in the maxilla was 72% in comparison to 92% in the mandible, and all implants were placed at least six months post-radiotherapy. 45 It seems that the best options in these situations will invariably require a team approach to the time, type and also the position of implant placement.…”