Beta-tricalcium phosphate/type I collagen cones with or without a barrier membrane in human extraction socket healing: Clinical, histologic, histomorphometric, and immunohistochemical evaluation

Bozidar M.B. Brkovic, Hari S. Prasad, Michael D Rohrer, George Konandreas, George Agrogiannis, Dragana Antunovic, George K.B. Sándor

Research output: Contribution to journalArticle

60 Scopus citations

Abstract

The aim of this study was to investigate the healing of human extraction sockets filled with β-tricalcium phosphate and type I collagen (β-TCP/Clg) cones with or without a barrier membrane. Twenty patients were divided in two groups: (A) β-TCP/Clg non-membrane and (B) β-TCP/Clg + barrier membrane. Clinical examination and biopsies from the grafted sites were collected 9 months later. Bone samples were analyzed using histomorphometry and immunohistochemistry. The horizontal dimension of the alveolar ridge was significantly reduced 9 months after socket preservation in the non-membrane group. There was bone formation with no significant differences between the two groups in the areas occupied by new bone (A = 42.4%; B = 45.3%), marrow (A = 42.7%; B = 35.7%), or residual graft (A = 9.7%; B = 12.5%). Immunohistochemistry revealed osteonectin expression in both groups. Both groups demonstrated sufficient amounts of vital bone and socket morphology to support dental implant placement after the 9-month healing period. A future trial to evaluate the alveolar outcomes at an earlier 6-month time point rather than the 9 months used in this study would be of interest.

Original languageEnglish (US)
Pages (from-to)581-590
Number of pages10
JournalClinical oral investigations
Volume16
Issue number2
DOIs
StatePublished - Apr 1 2012

Keywords

  • Barrier membrane
  • Beta-tricalcium phosphate
  • Collagen type I
  • Histomorphometry
  • Immunohistochemistry
  • Socket preservation

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