Efficacy of Nd:YAG and GaAlAs lasers in comparison to 2% fluoride gel for the treatment of dentinal hypersensitivity.
Lasers demonstrate excellent therapeutic action and are often employed in dentistry for the treatment of diverse clinical conditions. The aim of this study was to compare the efficacy of neodymium-doped yttrium-aluminum-garnet (Nd:YAG) laser, gallium-aluminum-arsenide (GaAlAs) laser, and 2% neutral fluoride gel in the treatment of dentinal hypersensitivity. Twenty-three patients were evaluated, involving a total of 48 quadrants with at least 1 tooth with dentinal hypersensitivity (89 teeth total). Pain intensity was recorded on a visual analog scale at the time of clinical examination (baseline), immediately after treatment, and 1 week posttreatment. Teeth were treated with 60 seconds of 2% neutral fluoride gel application or 60 seconds of laser treatment-Nd:YAG laser at a distance of 0.5 cm (unfocused; 1 W and 10 Hz for 60 seconds, perpendicular to the cervical surfaces) or GaAlAs laser in contact (40 mW; 4 J/cm²; spot: 0.028 cm²; 15 seconds per point on 4 points [mesial, medial, distal, and apical])-as well as sham treatments so that patients remained blind to their treatment group. All treatments provided adequate pain reduction immediately posttreatment, but laser treatments resulted in significantly greater reductions in pain intensity.
Marília De Lima
ML
Soares
Geane Bandeira
GB
Porciúncula
Mara Ilka Holanda Medeiros De
MI
Lucena
Luiz Alcino Monteiro
LA
Gueiros
Jair Carneiro
JC
Leão
Alessandra De Albuquerque Tavares
AA
Carvalho
D000328:Adult; D000368:Aged; D003807:Dentin Sensitivity / Q000188:drug therapy / Q000601:surgery*; D005260:Female; D005459:Fluorides / Q000008:administration & dosage / Q000627:therapeutic use; D005782:Gels; D006801:Humans; D054023:Lasers, Semiconductor / Q000627:therapeutic use*; D053844:Lasers, Solid-State / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement; D016037:Single-Blind Method; D016896:Treatment Outcome; D055815:Young Adult
D005782:Gels; D005459:Fluorides
GaAlAs laser; Nd:YAG laser; dentinal hypersensitivity