A radiological evaluation of alveolar bone regeneration between the left and right mandibles and maxillae of the Chacma baboon

Authors

  • Marthinus J Kotze University of Pretoria
  • Kurt-W Bütow University of Pretoria
  • Steve A Olorunju Medical Research Council of South Africa
  • Harry F Kotze University of the Free State

Abstract

There is a lack of information in comparing the healing rate between the left and right sides of the maxilla and mandible. Osteogenesis of alveolar bone was evaluated with digital radiology by comparing differences in bone density (BD) at different time points within the left and right maxilla and mandible. Alveolar bone defects were created in five healthy Chacma baboons.
Standardised x-ray images were acquired over time and the densities of the selected trauma areas were measured pre-peratively, post-operatively and at 3 and 6 weeks post-operatively. Differences in densities were statistically tested. There was no significant difference when the grey scale averages of the combined first and fourth quadrants (right side) and combined second and third quadrants (left side) were compared pre-operatively (t = 0.70), immediately post-operatively (t = 0.34), 3 weeks post-operatively (t = 0.40) and 6 weeks post-operatively (t = 0.66). There was also no significant difference between the values for the first and second
quadrants (maxilla) pre-operatively (t = 0.37), immediately post-operatively (t = 0.30), 3 weeks post-operatively (t = 0.30) and 6 weeks post-operatively (t = 0.38); the third and fourth quadrants (mandible) were also not significantly different pre-operatively (t = 0.29), immediately post-operatively (t = 0.69), 3 weeks post-operatively (t = 0.07) and 6 weeks postoperatively (t = 0.06). However, the results showed an increased predisposition of the right side to regenerate faster than the left side and indicated sufficient information to investigate the effect of laterality and preferred side of mastication on the rate of healing and alveolar BD
in the maxilla and mandible.

Author Biographies

  • Marthinus J Kotze, University of Pretoria

    Department Maxillo-Facial and Oral Surgery, University of Pretoria, South Africa

  • Kurt-W Bütow, University of Pretoria

    Department Maxillo-Facial and Oral Surgery, University of Pretoria, South Africa and College of Health Sciences, University of KwaZulu-Natal, South Africa

  • Steve A Olorunju, Medical Research Council of South Africa

    Medical Research Council of South Africa, Pretoria, South Africa

  • Harry F Kotze, University of the Free State

    Department of Cardiothoracic Surgery, University of the Free State, South Africa

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Published

2021-12-09

Issue

Section

Original Research