A Comparative Study of Pain Reduction during Scaling between Lidocaine Hydrochloride, Benzydamine Hydrochloride Mouthrinses and Benzocaine with Tetracaine Hydrochloride Topical Gel
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Abstract
Pain generated by scaling and rooting was commonly compliant by almost all of the patients in a variable degree. The purpose of this study was to evaluate and compare the efficacy of lidocaine hydrochloride (Xylocaine viscous), benzydamine hydrochloride (Difflam) mouthrinses and benzocaine/tetracaine hydrochloride topical gel (ZAP) in pain reduction during scaling. In a single center, randomized, split-mouth design and controlled clinical trial was carried out on 60 patients. In each patient, one maxillary dental quadrant was randomly received Xylocaine viscous (n = 20) or Difflam (n = 20) or ZAP (n = 20), contralateral was control, recorded pain on a 100 millimeter visual analog scale (VAS). T- test revealed that the difference between mean VAS values of intervention and control quadrants was significant in Xylocaine viscous group (p = 0.017) and ZAP group (p <0.001), but not in Difflam group (p = 0.126). Comparing pain reduction in terms of a ratio, analyzed by ANOVA and Bonferroni, mean percentage in Xylocaine viscous group (62.4) and ZAP group (69.1) were significantly higher than Difflam group (23.2) (p <0.001). Pleasantness, patient preferred to use mouthrinses 80 percent, topical gel 90 percent.
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