Healing of post-extraction sockets filled with anorganic bovine bone and covered with a xenogeneic collagen matrix. Radiological 2D and 3D results of a pilot study to assess dimensional stability

Tiziano Testori, Matteo Antonio Deflorian, Federico Mandelli, Giulia Attardo, Carlo Maiorana, Massimo Del Fabbro, Raffaele Vinci

Research output: Contribution to journalArticlepeer-review

Abstract

Analysis of short-term results regarding dimensional stability of post-extraction sockets managed via a preservation protocol using deproteinized bovine bone matrix and a xenogeneic collagen matrix. Materials and methods Fifteen patients needing extraction of one single-rooted premolar tooth were treated in a pilot study. Five patients were treated in each centre. After tooth extraction, sockets were filled with anorganic bovine bone matrix and covered with a xenogeneic collagen matrix. Six months later, implants were placed. Dimensional changes in the treated sites were digitally evaluated using the best-fit superimposition of pre-and post-socket preservation models. Results After six months of healing, the vertical reduction of the grafted sites was 0.31 ± 0.24 mm (p < 0.001). Volumetric analysis of superimposed models showed an average palatal-lingual contraction of 0.33 ± 0.51 mm3 (p = 0.02). At the vestibular level, the average contraction was found to be 0.8 ± 0.3 mm3 (p < 0.001). Finally, the analysis of linear variations in the treated sites on a single sagittal section at the crystal level, and at 3 and 7 mm apically respect to the crest, both towards the vestibule and palate, generally showed more marked resorption at the crestal level compared to apical measurements. Conclusion: The clinical protocol herein employed for socket preservation showed a positive effect in preventing the physiological post-extraction remodeling.

Original languageEnglish
Article number2473
JournalMaterials
Volume14
Issue number10
DOIs
Publication statusPublished - May 2021

Keywords

  • 3D evaluation
  • Extraction socket
  • Implantology
  • Ridge preservation
  • Socket seal

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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