Interferência de resinas compostas no resultado da saturação de oxigênio do oxímetro de pulso
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2020-02-28
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Universidade Federal de Goiás
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To evaluate the interference of different thicknesses of composite resins in the result of oxygen saturation on the finger, by means of the pulse oximeter, in the presence and absence of ambient light. Method: To obtain the sample of this study, silicone matrices were made in dimensions 17mm x 7.5mm in thicknesses of 2.0mm, 3.0mm and 4.0mm. Ten samples of each thickness were produced with the following materials: G1. Harmonize® Dentin A2 composite resin; G2. Herculite® Classic Dentin A2 composite resin. The sample was positioned in a device specially developed for the alignment between the pulse oximeter sensors and maintaining the sensor-sample-pinky position. The measurement of oxygen saturation and beats was performed in a voluntary participant with the aid of the portable pediatric pulse oximeter BCI model 3301, in the presence and absence of ambient light. The positive control consisted of the measurement of the oxygen saturation level of the little finger, and the negative, of the measurement with the interposition of a silver amalgam sample. The variables were described by means and standard deviations and the non-parametric Mann-Whitney test was used for comparisons between experimental groups and positive control. The level of significance was 5% for the established comparisons. Results: The average
rate of oxygen saturation and pulse on the volunteer's finger was 97% and 67 bpm, respectively. There was no significant difference between the means of oxygen saturation in the Harnonize® resin group in thicknesses of 2mm (98.10%), 3mm (97.55%) and 4mm (97.80%) and that of the positive control of this group (97.40%), as well as between the averages of Herculite® resin in 2mm (97.90%), 3mm (97.15%) and 4mm (97.00%) and that of the positive control of the group (96, 70%), in the presence of ambient light. As for the presence and absence of ambient light, there was no statistically significant difference between the means of oxygen saturation both when comparing the two groups of composite resin evaluated separately (n = 30) and when comparing the total sample (n = 60). In the negative control group, no oxygen and pulse saturation results were obtained. Conclusion: The Herculite® and Harmonize® composite resins, in different thicknesses, did not interfere with the reading of oxygen saturation and pulse rates of the pulse oximeter apparatus, both in the presence and in the absence of ambient light
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BARBOSA, H. A. Interferência de resinas compostas no resultado da saturação de oxigênio do oxímetro de pulso. 2020. 45 f. Dissertação (Mestrado em Odontologia) - Universidade Federal de Goiás, Goiânia, 2020.