Simple preservation of a maxillary extraction socket using beta-tricalcium phosphate with type I collagen: preliminary clinical and histomorphometric observations

J Can Dent Assoc. 2008 Jul-Aug;74(6):523-8.

Abstract

Alveolar atrophy following tooth extraction remains a challenge for future dental implant placement. Immediate implant placement and postextraction alveolar preservation are 2 methods that are used to prevent significant postextraction bone loss. In this article, we report the management of a maxillary tooth extraction socket using an alveolar preservation technique involving placement of a cone of beta-tricalcium phosphate (beta -TCP) combined with type I collagen without the use of barrier membranes or flap surgery. Clinical examination revealed solid new bone formation 9 months after the procedure. At the time of implant placement, histomorphometric analysis of the biopsied bone showed that it contained 62.6% mineralized bone, 21.1% bone marrow and 16.3% residual beta -TCP graft. The healed bone was able to support subsequent dental implant placement and loading.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Alveolar Bone Loss / prevention & control
  • Alveoloplasty
  • Bicuspid / surgery
  • Biocompatible Materials / therapeutic use*
  • Bone Marrow / pathology
  • Bone Substitutes / therapeutic use*
  • Calcification, Physiologic / physiology
  • Calcium Phosphates / therapeutic use*
  • Collagen Type I / therapeutic use*
  • Dental Implantation, Endosseous
  • Follow-Up Studies
  • Humans
  • Male
  • Maxilla / surgery*
  • Osteogenesis / physiology
  • Tooth Extraction
  • Tooth Socket / surgery*

Substances

  • Biocompatible Materials
  • Bone Substitutes
  • Calcium Phosphates
  • Collagen Type I
  • beta-tricalcium phosphate