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. 2007 Jun;11(2):175-80.
doi: 10.1007/s00784-007-0100-9. Epub 2007 Feb 2.

Dental erosion in chronic renal failure

Pervin Imirzalioglu  1 , Emel Olga Onay, Erhan Agca, Ersin Ogus
Affiliations

Dental erosion in chronic renal failure

Pervin Imirzalioglu et al. Clin Oral Investig. 2007 Jun.

Abstract

Dental erosion is a common oral finding in chronic renal failure and may develop due to extrinsic and/or intrinsic causes. The aim of this study was to compare the salivary calcium and phosphorus levels, salivary flow rate, salivary buffer capacity, salivary pH, serum calcium and phosphorus levels and parathyroid hormone levels in chronic renal failure patients with and without dental erosion. Twenty-four men and 19 women who had had chronic renal failure for at least 2 years were studied. Twenty-two subjects displayed erosion-like patterns on their teeth and the other 21 patients showed no signs of erosion. Two closely age- and sex-matched control groups (control groups 1 and 2) were enrolled in this study because of the age disparity between the erosion and non-erosion groups. The data were analyzed by Mann-Whitney U test, Student t test, Pearson's and Spearman's correlation tests. None of the comparisons were statistically different between the erosion and non-erosion groups. There were statistically significant differences in salivary calcium (P < 0.01) and phosphorus (P < 0.01) levels, serum phosphorus level (P < 0.01) and serum PTH level (P < 0.01) for the erosion group and control group 1 and also for the non-erosion group and control group 2. There was also a significant difference in salivary flow rate (P < 0.05) for the erosion group and control group 1. There was a positive significant correlation between saliva buffer capacity and salivary phosphorus level (r = 0.454, P < 0.05) in the erosion group.

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