Long-Term Retrospective Evaluation of Dental Implants Placed in Resorbed Jaws Reconstructed With Appositional Fresh-Frozen Bone Allografts.

Abstract:

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.

journal_name

Implant Dent

journal_title

Implant dentistry

authors

Maiorana C,Poli PP,Borgonovo AE,Rancitelli D,Frigo AC,Pieroni S,Santoro F

doi

10.1097/ID.0000000000000412

subject

Has Abstract

pub_date

2016-06-01 00:00:00

pages

400-8

issue

3

eissn

1056-6163

issn

1538-2982

journal_volume

25

pub_type

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