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

Abstract

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.

bone regeneration; membranes; oral surgery; tooth extraction


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Publication Dates

  • Publication in this collection
    28 Oct 2013
  • Date of issue
    Sept 2013

History

  • Received
    20 May 2013
  • Accepted
    16 Aug 2013
Faculdade de Odontologia de Piracicaba - UNICAMP Avenida Limeira, 901, 13414-903 - Piracicaba - SP, Tel.: 55 19 2106 5706, Fax: 55 19 2106 5218 - Piracicaba - SP - Brazil
E-mail: brjorals@fop.unicamp.br