Osteopromotion Capacity of Bovine Cortical Membranes in Critical Defects of Rat Calvaria: Histological and Immunohistochemical Analysis

Author(s)

Danieletto-Zanna, Carolina Ferrairo ^[1] ; Bizelli, Vinicius Ferreira ^[2] ; Ramires, Guilherme Andre Del Arco ^[2] ; Francatti, Tamires Melo ^[2] ; Carvalho, Paulo Sergio Perri de ^[3] ; Bassi, Ana Paula Farnezi ^[2]

Affiliation

^[1] Univ Sao Paulo, PhD Student Bauru Sch Dent, Unicesumar, Dept Dent, Sao Paulo - Brazil

^[2] UNESP Sao Paulo State Univ, Aracatuba Dent Sch, Dept Surg & Integrated Clin, Aracatuba, SP - Brazil

^[3] Univ Sao Paulo, Bauru Dent Sch, Dept Stomatol & Oral Biol, Bauru, SP - Brazil

• Document type: Journal article
• Source: INTERNATIONAL JOURNAL OF BIOMATERIALS; v. 2020, FEB 18 2020.
• Web of Science Citations: 2

Abstract

Membranes that aid the guided bone regeneration (GBR) process have been the subject of studies of compatible biomaterials that contribute to this repair process. The present study compared different membranes used in critical-size defects of rat calvaria by assessing GBR as well as histological, histomorphometric, and immunohistochemical reactions. Forty-eight male albino Wistar rats were randomly allocated into four groups (n = 12 each), namely, C: membrane-free control group (only blood clot, negative control group); BG: porcine collagen membrane group (Bio-Gide (R), positive control group); GD: bovine cortical membrane group (first experimental group); and GDF: thicker bovine cortical membrane group (second experimental group). Rats were euthanized at 30 and 60 days postoperatively. Quantitative data from the histometric analysis were submitted to two-way ANOVA and Tukey's posttest when p<0.05. Histomorphometric results of the thicker bovine cortical membrane at 30 and 60 days were promising, showing improved new bone formation values (p<0.05), and the CD group presented similar results in both analysis periods, being surpassed only by the GDF group (p<0.05). The immunohistochemical results were associated with the histomorphometric data. A less-thick membrane also assisted in GBR. All membranes promoted GBR, especially the positive control and experimental groups. (AU)

• FAPESP's process: 16/12053-0 - Evaluation of repair process in calvarial defects in rats using two bovine cortical membranes with different thickness and porcine collagen membrane: histological analysis, histometric and immunohistochemistry
• Grantee: Tamires Melo Francati
• Support type: Scholarships in Brazil - Scientific Initiation