Dental erosion in chronic renal failure

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.

Alterações bucais e o manejo odontológico dos pacientes com doença renal crônica

“…O uso de balas duras estimula a produção de saliva o que pode contribuir para a diminuição da erosão 43 .…”

Approximal Plaque Index, parameters of calcium-phosphate and iron metabolism and the quality of life of hemodialysis patients

“…A major problem for the condition of the dental organ is the occurrence of renal osteodystrophy [4]. Furthermore, previous studies have shown that in patients with chronic renal failure, increase in serum phosphorus level, serum PTH level and salivary phosphorus level induces the formation of dental cavities [5]. Latest reports also analyze the relationship between the level of urea in the serum and the quality of the oral environment [6].…”

Avaliação das manifestações bucais nos pacientes com insuficiência renal

“…As alterações da saliva compreendem alterações na sua composição e diminuição do fluxo salivar. A xerostomia poderia também aumentar o risco de cáries cervicais (BOTS et al, 2007;CASTILLO et al, 2007;IMIRZALIOGLU et al, 2007;ROBERTS, 2005;MARTINS et al, 2006;PROCTOR et al, 2005;SHARMA;PRADEEP, 2007 O hiperparatireoidismo secundário também poderia estar relacionado com alterações periodontais ao destruir tecido ósseo produzindo um alargamento do ligamento, muitas vezes com severa destruição periodontal e mobilidade dentária (PROCTOR et al, 2005).…”

“…O hiperparatireoidismo secundário afeta 92% dos pacientes que recebem tratamento de hemodiálise (PROCTOR et al, 2005;IMIRZALIOGLU et al, 2007).…”

“…Com este tipo de dieta (aliado a pobre higiene oral) seria plausível esperar uma maior prevalência de cáries (DAVIDOVICH et al, 2005a;FERGUSON;WHYMAN, 1998). Outro fator que poderia contribuir em teoria para o aumento da incidência de cárie (notadamente cárie cervical) seria a xerostomia que alguns pacientes com IRC podem apresentar, aliada às náuseas e regurgitações frequentes (IMIRZALIOGLU et al, 2007). …”