Comparative evaluation of Nd:YAG laser and fluoride varnish for the treatment of dentinal hypersensitivity.
BACKGROUND
Various methods and materials are used in the treatment of dentin hypersensitivity. The aim of this randomized prospective controlled clinical trial was to evaluate and compare the desensitizing effects of the neodymium-doped yttrium aluminium garnet (Nd:YAG) laser and fluoride varnish by considering the degree of pre- and posttreatment pain, discomfort, and functional complications.


METHODS
Twenty patients with clinically diagnosed cervical dentin hypersensitive teeth were included and randomly allocated to either the application of fluoride varnish (group fluoride) or Nd:YAG laser (100 mJ, 20 Hz; group Nd:YAG). The assessment of pain and discomfort was performed by a visual analog scale after an air blast at baseline, immediately after treatment, and at patient visits on weeks 1, 2, 3, and 4.


RESULTS
Laser treatment resulted in significant improvements of discomfort immediately after treatment and after 1 week. At the 2-, 3-, and 4-week examination, the discomfort in group fluoride decreased up to nearly 75% to 85% of baseline scores, whereas the effect of the laser stayed nearly unchanged. The visual analog scale scores for pain at 4 weeks examination were significantly lower in the fluoride group compared with those in the laser group (p < 0.05).


CONCLUSIONS
Nd:YAG laser is a suitable tool for the immediately successful reduction of dentinal hypersensitivity and has better patient satisfaction and shorter treatment time.
Kara
Cankat
C
Department of Periodontology, Faculty of Dentistry, Atatürk University, Erzurum, Turkey. mcankat@hotmail.com
Orbak
Recep
R
D000328:Adult; D002124:Calcium Fluoride / Q000627:therapeutic use*; D003807:Dentin Sensitivity / Q000628:therapy*; D005260:Female; D005460:Fluorides, Topical / Q000627:therapeutic use*; D006801:Humans; D053844:Lasers, Solid-State / Q000627:therapeutic use*; D008297:Male; D010147:Pain Measurement; D017060:Patient Satisfaction; D011446:Prospective Studies; D012969:Sodium Fluoride / Q000627:therapeutic use*; D016896:Treatment Outcome
C094502:Bifluorid 12; D005460:Fluorides, Topical; D012969:Sodium Fluoride; D002124:Calcium Fluoride