Evaluation of dog tooth enamel by scanning electron microscopy after different types of polishing
DOI:
https://doi.org/10.1590/1809-6891v24e-74619EAbstract
Polishing is an important procedure which takes part in the periodontal disease treatment, being commonly performed with the help of prophylactic paste and provides smoothing of the tooth surface, hindering the adhesion of new plaque. With this study we aimed to evaluate by means of scanning electron microscopy (SEM), the effects of dental polishing observing, qualitatively, the effectiveness and the damage, in three distinct treatments after calculus removal. Twenty (20) teeth were used (four of each dog), from which were obtained three samples each. The sixty samples were distributed into three groups (G0= tooth segmentation submitted to prophylaxis without polishing; G1= vestibular surface prophylaxis followed by polishing with the use of Defengy OC® and G2= vestibular surface prophylaxis followed by polishing with the use of pumice and fluorine gel). The samples were prepared and sent to images execution via SEM. These images, with enlargement of 100x and 500x, were evaluated and the classification averages were obtained. The statistical analysis of these averages was made through the Friedman nonparametric test using the software R. Statistical differences were observed (P<0,05) between groups 0 and 1 in the 100x magnification, whereas in the 500x magnification there was no difference (P>0,05) between the groups. The evaluation based on SEM images at two magnifications was essential, as it allowed the visualization of grooves and remaining calculi in a comprehensive way at 100x magnification and in more detail at 500x.
Keywords: tooth calculus; periodontal disease; veterinary dentistry; dental plaque; dental surface
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