Oxygen Saturation in the Dental Pulp of Maxillary Premolars in Different Age Groups - Part 1
Braz. dent. j; 28 (5), 2017
Publication year: 2017
Abstract The aim of this study was to determine oxygen saturation levels in the dental pulp of maxillary premolars in different age groups.
A total of 120 human maxillary premolars with normal dental pulps were selected covering the following age groups:
20-24, 25-29, 30-34, 35-39 and 40-44 years (n=24 each group). Oxygen saturation was assessed using pulse oximetry. Analysis of variance was used to assess differences in oxygen saturation levels and Tukey's test was used to identify the age groups that differed from each other. Significance was set at 0.05. Mean oxygen saturation of 120 premolars was 86.20% considering all age groups.Significantly reduced levels were found in the oldest group compared to the other groups:
40 to 44 years - 80.00% vs. 89.71, 87.67, 88.71, and 84.80% for age groups 20-24, 25-29, 30-34, 35-39 years, respectively. The mean oxygen saturation levels were similar between 20 and 39 years of age (86.20%) in the whole sample, but reduced significantly in the 40-44-year age group, suggesting that older patients present lower oxygen saturation results even in the absence of pulp tissue injury.
Resumo Este estudo determinou os níveis de saturação de oxigênio (SaO2) em polpas dentárias de pré-molares superiores em diferentes faixas etárias. Foram selecionados 120 pré-molares superiores humanos com polpas dentárias normais, abrangendo os seguintes grupos etários: 20-24, 25-29, 30-34, 35-39 e 40-44 anos (n=24 para cada grupo). A saturação de oxigênio foi avaliada utilizando oximetria de pulso. A análise de variância foi utilizada para avaliar diferenças nos níveis de saturação de oxigênio, e o teste de Tukey foi utilizado para identificar os grupos etários que diferiam uns dos outros. A significância foi estabelecida em 0,05. A saturação média de oxigênio foi de 86,20% considerando todos os grupos etários.