Laser Therapy for Dentin Hypersensitivity

This split-mouth randomized controlled clinical trial compared the effectiveness of Er,Cr:YSGG laser irradiation, a hydroxyapatite- and fluoride-containing agent (Remin Pro), and their combined application in the treatment of dentin hypersensitivity over 3 months, and evaluated changes in oral health-related quality of life using the OHIP-14 questionnaire.

Inclusion Criteria: * Age between 18 and 70 years * Voluntary agreement to participate in the study and written informed consent * Not receiving any analgesic therapy * No systemic disease that could interfere with the treatment outcomes * Not pregnant or breastfeeding * At least three teeth with a Visual Analog Scale (VAS) score of 4 or higher * No tooth substance loss of sufficient depth to require restorative treatment * No extensive or defective restorations or caries in the sensitive teeth * No pulpitis * No hypersensitivity associated with periodontal procedures Exclusion Criteria: * Age younger than 18 years or older than 70 years * Unwillingness to participate in the study voluntarily * Receiving any analgesic therapy * Systemic disease that could interfere with the treatment outcomes * Pregnancy or breastfeeding * Tooth substance loss of sufficient depth to require restorative treatment, or enamel fracture * Extensive or defective restorations or caries in the sensitive teeth * Pulpitis * Periodontal treatment within the previous 3 months with persistent hypersensitivity related to that treatment * Use of a desensitizing dentifrice or mouthrinse within the previous 3 months