Verificação da existência de diferença de fluxos pulpares entre dentes vitais anteriores e seus homólogos da arcada oposta em um mesmo indivíduo com o auxilio do fluxômetro laser doppler

Abstract

Vitality tests need to assess the blood supply of the dental pulp. The Laser Doppler Flowmeter (FLD) is a device capable of evaluating the blood flow of the dental pulp, by means of an infrared (780-820 nm) or red (632.8 nm) beam that is directed to the tissue by optical fibers. The aim of the present study was to verify the existence of differences in pulp flow between vital anterior teeth and their counterparts at the opposite arch in the same individual with the aid of a laser doppler flowmeter. In this in vivo study, the selected teeth were restricted to the maxillary anteriors and their counterpart from the opposite quadrant to perform the flow comparison in the same individual. To carry out this experiment, a Moor Instruments Laser Doppler Flowmeter was used with the flowmeter Doppler band set at 3.1kHz, 780nm. The probe used was the model MP13 (Moor Instruments Ltd., U.K.). A paired T test was established as a criterion for analysis in cases of comparison between the same tooth on the right and its opposite side; and the independent T test in cases of comparison between different groups, for example between canine and lateral. In order to correlate the data, Pearson's correlation coefficient was used. The significance level adopted was 0,05. There was no significant difference between the right and left sides in general (p=0,47); There was no significant difference in the comparison of the right and left sides between canines, laterals and centrals (p=0,78 , p=0,21 , p=0,93 , respectively); Correlating right and left sides of canines, laterals and centrals, there were no significant correlation coefficients: 79%, 27% and 32% respectively. However, in the comparison between canine and central on the left side of the female group, the value of p=7% was obtained, close to the significance of 5%. It can be concluded that the variation in pulpal blood flow is non-existent between vital anterior teeth and their counterparts in the opposite arcade.