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In Vitro Handling Characteristics of a Particulate Bone Substitute for Ridge Preservation Procedures.

Samira Dahl1, Virgilia Klär-Quarz1, Annika Schulz1

  • 1Department of Prosthodontics, Saarland University, 66421 Homburg, Saar, Germany.

Materials (Basel, Switzerland)
|January 23, 2024
PubMed
Summary
This summary is machine-generated.

This study found that the packing of bone graft material significantly impacts its density and homogeneity in ridge preservation. Proper material packing is crucial for successful augmentation in non-standardized defects.

Keywords:
alveolar ridge augmentationbone substitute materialsridge preservation

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Area of Science:

  • Dental materials science
  • Oral surgery
  • Biomaterials engineering

Background:

  • Particulate bone substitutes are widely used in dental augmentation.
  • Preclinical testing often utilizes standardized defects, but clinical applications involve non-standardized sites.
  • Evaluating the properties of bone substitutes in realistic defect scenarios is essential.

Purpose of the Study:

  • To assess the density and homogeneity of a particulate bone substitute material used in ridge preservation procedures.
  • To investigate the relationship between defect volume, graft material mass, density, and homogeneity.
  • To determine the influence of defect location (apical, middle, cervical) on augmentation material properties.

Main Methods:

  • Extraction of premolars and molars from minipig cadavers to create non-standardized defects.
  • Measurement of extraction site volume using light body impression material.
  • Augmentation of defects with particulate bone substitute, with graft mass recorded.
  • Evaluation of material density and homogeneity using microradiography and histological analysis.
  • Statistical analysis including Shapiro-Wilk, Spearman's rho, and Wilcoxon tests with Bonferroni-Holm correction.

Main Results:

  • A significant correlation was found between defect volume, graft mass, density, and homogeneity (p < 0.020) in 103 evaluated alveoli.
  • Mean defect volume was 0.120 cm³, requiring a mean graft mass of 0.155 g.
  • Reduced density (p < 0.001) and homogeneity (p < 0.001) were observed in the apical portions of the alveoli compared to middle and cervical regions.

Conclusions:

  • The packing technique critically influences the density and homogeneity of particulate bone substitutes in non-standardized ridge preservation defects.
  • Apical regions of extraction sockets present challenges for achieving uniform bone graft material distribution and density.
  • Further research into optimized packing protocols for non-standardized defects is warranted.