TY - JOUR
T1 - Long-Term Retrospective Evaluation of Dental Implants Placed in Resorbed Jaws Reconstructed With Appositional Fresh-Frozen Bone Allografts
AU - Maiorana, Carlo
AU - Poli, Pier Paolo
AU - Borgonovo, Andrea Enrico
AU - Rancitelli, Davide
AU - Frigo, Anna Chiara
AU - Pieroni, Stefano
AU - Santoro, Franco
PY - 2016
Y1 - 2016
N2 - INTRODUCTION:: The aim of this study was to evaluate the outcome of fresh-frozen bone allografts in preprosthetic surgery for implant placement purposes. MATERIALS AND METHODS:: The cohort comprised 45 patients treated with fresh-frozen bone block grafts and dental implants. Clinical and radiological evaluations were performed to evaluate the survival rate. The data were statistically analyzed with the Kaplan-Meier estimator to assess the influence of possible predictors of implant failure on survival. RESULTS:: Overall, 262 implants were retrospectively analyzed. The survival rate was 90.84% over a mean follow-up of 50 months. Comparing the donor site and the position of the implants, no statistically significant differences could be detected (P = 0.7194 and P = 0.2901, respectively), whereas sex resulted in a marginally statistically significant difference (P = 0.0581). When considering age categorized on the median value (≤55/>55 years), age resulted in a statistically significant difference (P = 0.0340), with higher failures found in older people. CONCLUSION:: Implant loss was strictly related to the lack of primary osseointegration. Female sex and old age were found to be risk factors, which could negatively influence implant survival.
AB - INTRODUCTION:: The aim of this study was to evaluate the outcome of fresh-frozen bone allografts in preprosthetic surgery for implant placement purposes. MATERIALS AND METHODS:: The cohort comprised 45 patients treated with fresh-frozen bone block grafts and dental implants. Clinical and radiological evaluations were performed to evaluate the survival rate. The data were statistically analyzed with the Kaplan-Meier estimator to assess the influence of possible predictors of implant failure on survival. RESULTS:: Overall, 262 implants were retrospectively analyzed. The survival rate was 90.84% over a mean follow-up of 50 months. Comparing the donor site and the position of the implants, no statistically significant differences could be detected (P = 0.7194 and P = 0.2901, respectively), whereas sex resulted in a marginally statistically significant difference (P = 0.0581). When considering age categorized on the median value (≤55/>55 years), age resulted in a statistically significant difference (P = 0.0340), with higher failures found in older people. CONCLUSION:: Implant loss was strictly related to the lack of primary osseointegration. Female sex and old age were found to be risk factors, which could negatively influence implant survival.
UR - http://www.scopus.com/inward/record.url?scp=84964659520&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84964659520&partnerID=8YFLogxK
U2 - 10.1097/ID.0000000000000412
DO - 10.1097/ID.0000000000000412
M3 - Article
AN - SCOPUS:84964659520
VL - 25
SP - 400
EP - 408
JO - Implant Dentistry
JF - Implant Dentistry
SN - 1056-6163
IS - 3
ER -