A Comparative Study on the Safety and Efficacy of Erbium Laser Therapy Versus Traditional Treatments in Managing Dentin Hypersensitivity: An Observational Study

TL;DR

This study found that Erbium laser therapy is more effective and safer than traditional treatments for reducing dentin hypersensitivity over time.

Contribution

The study provides observational evidence supporting Erbium laser therapy as a superior alternative to traditional desensitizing treatments for dentin hypersensitivity.

Findings

Laser therapy showed significantly lower VAS scores than traditional treatment at 3, 6, and 12 months.

Tactile hypersensitivity scores were consistently lower in the laser therapy group compared to traditional treatment.

Laser therapy demonstrated a favorable safety profile and long-term effectiveness in managing dentin hypersensitivity.

Abstract

Background

This study aimed to explore the potential efficacy and safety of laser therapy compared with traditional desensitizing treatments in the management of dentin hypersensitivity.

Methodology

A comprehensive observational study was conducted on 138 adult individuals aged 18-65 diagnosed with dentin hypersensitivity. Participants were allocated to either the laser therapy or traditional treatment group. The laser therapy group received treatment using the Fotona LightWalker® Erbium laser at 2,940 nm. The energy density was set at 20 J/cm² using continuous and contact modes, with the laser tip held perpendicularly to the irradiated site. Each session lasted five minutes, conducted bi-weekly for three months. Traditional treatment included the in-office application of 5% sodium fluoride varnish application once every 15 days for three months and the use of desensitizing toothpaste as part of regular oral hygiene routines. Follow-up assessments were conducted 6 and 12 months post-treatment to evaluate the longevity and stability of the treatment effects. Primary outcomes were assessed by dentin hypersensitivity reduction measured using Visual Analog Scale (VAS) scores and tactile hypersensitivity assessments.

Results

Laser therapy consistently surpassed traditional treatment in reducing dentin hypersensitivity, as reflected by the significantly lower VAS scores. Notably, at 3, 6, and 12 months, laser therapy demonstrated mean VAS scores of 2.5 (±1.5), 1.2 (±0.9), and 0.6 (±0.5), respectively, while the traditional treatment group exhibited higher scores (3.8 ± 1.2, 4.5 ± 1.0, and 4.0 ± 0.7, respectively). Statistical analysis revealed that these differences were highly significant (p < 0.001). Tactile hypersensitivity assessments echoed these findings, with laser therapy consistently maintaining lower scores (0.8 ± 0.7 at 6 months, 0.4 ± 0.3 at 12 months) compared to traditional treatment (3.5 ± 1.0 at 6 months, 4.0 ± 0.7 at 12 months) with statistical significance at all time points (p < 0.001).

Conclusions

Although this study lacks a randomized controlled design, the observed substantial reduction in VAS scores and tactile hypersensitivity assessments, along with the favorable safety profile of laser therapy, suggest its potential as an effective alternative for managing dentin hypersensitivity.