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Volume 19 , Issue 1
January/February 2006

Pages 3739

Tubule-Occluding Effect of Desensitizing Laser Treatment on Prepared Dentin Surfaces: An Environmental SEM Study

Cumhur Sipahi, DDS, PhD / Nukhet Berk, DDS, PhD / Julide Ozen, DDS, PhD / Arzu Atay, DDS, PhD / Bedri Beydemir, DDS, PhD

PMID: 16479758

Purpose: The purpose of this in vitro study was to demonstrate the dentinal tubule-occluding effect of desensitizing laser treatment on dentin surfaces using environmental scanning electron microscopy (E-SEM). Materials and Methods: Ground dentin surfaces were divided into 5 areas. Each area received a different mode of laser irradiation (low potency [LP] versus high potency [HP] and short time [ST] versus long time [LT]). Lased dentin surfaces were viewed and graded under E-SEM at 35,000 magnification. Results: The tubule closure rates of 4 different irradiation modes were as follows: LP/LT (74%) > HP/ST (70%) > LP/ST (51%) > HP/LT (46%) > control (6%). Conclusion: It was demonstrated that desensitizing laser application was an efficient treatment option for the occlusion of dentinal tubule apertures.
Int J Prosthodont 2006;19:3739.

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