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Clinical and Histomorphometric Evaluation of Fresh Frozen Bone Allograft in Sinus Lift Surgery

Authors :
Maria Teresa de Seixas Alves
Michel Eli Lipiec Ximenez
Tatiana Regina Ramos Nantes de Castilho
Pedro Tortamano
José Carlos S Andrade
Juliana Marotti
Israel Chilvarquer
Source :
Clinical Implant Dentistry and Related Research. 18:40-50
Publication Year :
2014
Publisher :
Wiley, 2014.

Abstract

Purpose The aim of this prospective clinical study was to evaluate the clinical and histomorphometric data of newly formed bone tissue from fresh frozen human allograft in sinus lift surgery. Patients and Methods Thirty-three sinus lift procedures were performed in 20 patients, divided into two groups. The control group (n = 8) received autogenous bone from the mandibular ramus, and the experimental group (n = 12) received fresh frozen bone (FFB) allograft in chips. After 6 months, 52 implants were placed and 50 biopsies were collected for histomorphometric analysis. Cone beam computed tomography scans were performed at preoperative, immediate postoperative, and delayed postoperative time intervals to assess the degree of graft volume loss. Results There was no statistically significant difference between groups as regards degree of graft volume loss (p = .983), total bone area (p = .191), remaining particles (p = .348), and proportion of active osteoblasts (p = .867). There was a statistically significant difference in the vitality rate between the groups (p = .043). In both groups, all implants were clinically osseointegrated after 4 months. Conclusion FFB allograft was shown to be a feasible substitute for autogenous bone graft in sinus lift surgery.

Details

ISSN :
15230899
Volume :
18
Database :
OpenAIRE
Journal :
Clinical Implant Dentistry and Related Research
Accession number :
edsair.doi...........8e978b3747e22b1a2cec2d6ab7ccdc1f
Full Text :
https://doi.org/10.1111/cid.12234