Influence of Periodontal Biotype on Buccal Bone Remodeling after Tooth Extraction Using the Flapless Approach with a Xenograft: A Histomorphometric and Fluorescence Study in Small Dogs

Author(s)

Maia, Luciana Prado ; Reino, Danilo Maeda ; Novaes, Arthur Belem, Jr. ; Muglia, Valdir Antonio ; Taba, Mario, Jr. ; de Morais Grisi, Marcio Fernando ; Scombatti de Souza, Sergio Luis ; Palioto, Daniela Bazan

• Document type: Journal article
• Source: CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH; v. 17, p. 15-pg., 2015-01-01.

Abstract

BackgroundSeveral approaches have been used to counteract alveolar bone resorption after tooth extraction. PurposeThe aim of the present study was to evaluate the influence of gingival thickness and bone grafting on buccal bone remodeling in extraction sockets with thin buccal bone, using a flapless approach. Materials and MethodsThe gingiva of 8 dogs was thinned at one side of the mandible and mandibular premolars were extracted without flaps. The sockets were randomly assigned to the test group (thin gingiva) (TG), the test group with grafting material TG + GM, the control group (normal gingiva) (CG), or the control group with grafting material CG + GM. Ground sections were prepared from 12-week healing biopsies, and histomorphometry and fluorescence analysis were performed. ResultsIn the groups with thin gingiva, numerically greater buccal bone loss was observed, while there were no differences between grafted and nongrafted sites. A numerically higher rate of mineralization was observed for the grafted sites, as compared with the nongrafted sites, at 12 weeks. ConclusionsA thin buccal bone plate leads to higher bone loss in extraction sockets, even with flapless surgery. The gingival thickness or the use of a graft material did not prevent buccal bone resorption in a naturally thin biotype, but modified the mineralization process. (AU)

• FAPESP's process: 11/00674-6 - Importance of gingival thickness in maintaining the health of peri-implant tissue and preservation of facial and lingual bone around immediate implants installed with flapless surgery: and histomorphometric and clinical study in dogs
• Grantee: Daniela Bazan Palioto Bulle
• Support Opportunities: Regular Research Grants