Volumetric analysis of implanted biphasic calcium phosphate/collagen composite by three-dimensional cone beam computed tomography head model superimposition

Simonas Grybauskas, Janis Locs, Ilze Šalma, Ģirts Šalms, Liga Berzina-Cimdina

Research output: Contribution to journalArticlepeer-review

Abstract

Facial onlay augmentation is often performed as an ancillary procedure simultaneously with orthognathic surgery to improve facial appearance, with hydroxyapatite (HAp) and HAp-based composites often used as the materials of choice. The ability to apply HAp in a granular rather than solid shape form may be responsible for its comparatively reduced rate of complications. However, a known complication of HAp and HAp composites is reduction of implant volume over time associated with resorption of the material. Evaluation of the volumetric changes of implanted biphasic calcium phosphate (HAp/β-TCP)/collagen composite in the malar areas from baseline to 4 months, 9–12 months, and 18–24 months after surgery using cone beam computed tomography (CBCT) surface superimposition and volumetric subtraction was done. The average decrease of volume of implanted HAp/β-TCP 4 months after surgery was 18.6%. Further volumetric decreases were negligible and a mean total volume loss of 21.65% was found at 18–24 months postoperatively.
Original languageEnglish
Pages (from-to)167-174
JournalEuropean Journal of Cranio-Maxillofacial Surgery
Volume43
Issue number1
DOIs
Publication statusPublished - Jan 2015

Keywords

  • Bioresorption
  • Superimposition
  • Bone graft
  • Facial onlay augmentation
  • Volume analysis

Field of Science

  • 3.4 Medical biotechnology
  • 3.2 Clinical medicine

Publication Type

  • 1.1. Scientific article indexed in Web of Science and/or Scopus database

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