Publications of Faculty of Medicine:THE EFFECTS OF COBLATION TECHNOLOGY ON THE SOFT PALATE OF RABBITS. AN EXPERIMENTAL STUDY: Abstract

Title:
THE EFFECTS OF COBLATION TECHNOLOGY ON THE SOFT PALATE OF RABBITS. AN EXPERIMENTAL STUDY
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Abstract:

This study was designed to evaluate the volumetric reduction and the histologic changes of the soft palate after coblation (cold ablation) technology in experimental animals. Sixty male rabbits were included in the study divided into 3 groups : group (A). group(B) and group(C). Each group included 10 control and 10 study animals. Exposure of the soft palate to coblation was done in study animals of the 3 groups submucosaly at 3 sites, one at midportion and 2 at lateral sides of the soft palate for one minute duration in each site. The control animals of the 3 groups were left without any interference. The animals of group A. B and C were studied 1 month., 2 months and 3 months respectively. The soft palate of each rabbit was dissected and volume was calculated. Specimens of soft palate of both control and study animals were examined by electron microscopic study. Died animals were excluded from this study. The comparison of the mean volume of soft palate in the study groups showed gradual increased reduction with time as it was more after 3 months (group C) than 2 months (group Bland 1 month (group A). This result was confirmed by electron microscopic study as there was an increase in the amount of collagen fibers in the subepithelial layer gradually in study groups which was mild, moderate and marked in group A. B and C respectively. Cytoplasmic vacuoles were detected more in the epithelial layer of study group (A) than group (13) this means degenerative changes which is reversible as it was decreased by time and disappeared in group (C). There is no effect on the tnucosal glands of the epithelium or