Ridge Architecture Preservation Following Minimally Traumatic Exodontia Techniques and Guided Tissue Regeneration

Paula Gabriela Faciola Pessôa De Oliveira, Edmara Tatiely Pedroso Bergamo, Dimorvan Bordin, Leticia Arbex, Danielle Konrad, Luiz Fernando Gil, Rodrigo Neiva, Nick Tovar, Lukasz Witek, Paulo Guilherme Coelho

Research output: Contribution to journalArticle


Objective:To compare hard-tissue healing after 3 exodontia approaches.Materials and Methods:Premolars of dogs were extracted: (1) flapless, (2) flap, and (3) flap + socket coverage with polytetrafluoroethylene (dPTFE) nonresorbable membrane (flap + dPTFE). Animals were euthanized at 1 and 4 weeks. Amount of bone formation within socket and socket total area were measured.Results:Amount of bone formation revealed significant difference between 1 and 4 weeks; however, there was no differences among groups. Socket total area decreased after 4 weeks, and the flap + dPTFE group showed significantly higher socket total area. As a function of time and group, flap + dPTFE 4 weeks presented similar socket total area values relative to flap + dPTFE at 1 week, and significantly higher socket total area than flapless and flap. The histological sections revealed almost no bone formation within socket after 1 week, which increased for all groups at 4 weeks.Conclusion:Socket coverage with polytetrafluoroethylene (dPTFE) membrane showed to effectively preserve bone architecture. Bone formation within sockets was not influenced by tooth extraction technique.

Original languageEnglish (US)
Pages (from-to)319-328
Number of pages10
JournalImplant dentistry
Issue number4
StatePublished - Aug 1 2019



  • guided bone regeneration
  • ridge preservation
  • tooth extraction

ASJC Scopus subject areas

  • Oral Surgery

Cite this

Faciola Pessôa De Oliveira, P. G., Pedroso Bergamo, E. T., Bordin, D., Arbex, L., Konrad, D., Gil, L. F., Neiva, R., Tovar, N., Witek, L., & Coelho, P. G. (2019). Ridge Architecture Preservation Following Minimally Traumatic Exodontia Techniques and Guided Tissue Regeneration. Implant dentistry, 28(4), 319-328. https://doi.org/10.1097/ID.0000000000000886