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Effect of Age and Ordinal Number of the Dentures on Alveolar Bone Density around Abutment Teeth with Clasps
Daniela Kovačević
Zdravko Delić
Ivone Uhač
Nataša Blečić
Sažetak
The aim of this study was to determine the effect of the age of the patient and ordinal number of partial dentures (PD) on alveolar bone density around abutment teeth with clasps.
The study consisted of 50 subjects of both sexes, with PD. All examined teeth were radiographed twice by standard retroalveolar technique/recording within a period of three months. A copper calibrated peg, 0.1.0.5 mm thick, was stuck onto the X-ray film. Seven regions of interest (ROI) were chosen on each radiograph around the tooth root, 4 pixels in size. The method of intraoral microdensitometry according to Knezović-Zlatarić (1) was used to evaluate changes in alveolar bone density, by which the level of the grey regions of interest was converted into equivalent thickness of the copper pegs.
The density of the alveolar bone in the examined ROI was analysed. Difference between the two radiographs was not statistically significant (ANOVA: p > 0.05) regardless of the age of the patient and ordinal number of the PD. However, in all the examined ROI a positive trend was registered of reduction in alveolar bone density at the second recording, without statistical significance.
It can be concluded that neither age nor ordinal number of the dentures led to a significant reduction in alveolar bone density around the abutment teeth with clasps. However, because of the positive trend it is possible that during longitudinal monitoring of changes in alveolar bone density statistically significant difference may occur.
Ključne riječi
alveolar bone; intraoral microdensitometry; retroalveolar radiographs; partial dentures
Hrčak ID:
1490
URI
Datum izdavanja:
15.9.2004.
Posjeta: 1.941 *