Histometric analysis of alveolar bone regeneration with expanded polytetrafluoroethylene (e-PTFE) and latex membranes

• Published in: Brazilian journal of oral sciences Vol. 12; no. 3; pp. 184 - 188
• Main Authors: Molina, Gustavo Otoboni, Oliveira, Marcelo Tomás de, Buss, Leonardo, Peruchi, João Davi Faraco, Pereira, Jefferson Ricardo, Ghizoni, Janaina Salomon
• Format: Journal Article
• Language: English
• Published: Faculdade de Odontologia de Piracicaba - UNICAMP 01.09.2013
• Subjects: DENTISTRY, ORAL SURGERY & MEDICINE; membranes; bone regeneration; oral surgery; tooth extraction
• ISSN: 1677-3225; 1677-3225
• DOI: 10.1590/S1677-32252013000300007

AIM: To investigate the amount of connective tissue migrated into the extraction socket using EPTFE and latex membranes. METHODS: Seventeen rats were selected and randomly divided into 3 groups: e-PTFE membrane (n = 6), Latex membrane (n = 6) and Control (no membrane, n=5). After extraction of the maxillary right incisor, the animals of the test groups were subjected to alveolar guided bone regeneration (GBR) surgery and received an expanded polytetrafluoroethylene (e-PTFE) and a latex membrane, respectively. Thirty days after surgery, the animals were killed and histometric analysis was done to evaluate the migration of connective tissue. Data were analyzed statistically by one-way ANOVA and multiple-comparison Tukey's test at 5% significance level. RESULTS: There was statistically significant difference between groups e-PTFE and Latex (p=0.001), and between groups e-PTFE and Control (p=0.012), but no significant difference was found between groups Latex and Control (p=0.416). CONCLUSIONS: The e-PTFE membrane showed better results and appeared more adequate for GBR therapy, forming a barrier to prevent the migration of connective tissue into the extraction socket. The latex membrane, on the other hand, did not show benefits over the control group.