Desensitizing treatments for dentin hypersensitivity: a randomized, split-mouth clinical trial

Area of Science:

• Dentistry
• Dental Materials Science

Background:

• Cervical dentin hypersensitivity (CDH) is a common clinical condition.
• Effective management of CDH requires understanding the efficacy of various desensitizing agents.

Purpose of the Study:

• To compare the clinical effectiveness of different desensitizing agents for treating cervical dentin hypersensitivity (CDH).
• To evaluate the efficacy of fluoride varnishes, sodium fluoride, and potassium oxalate in reducing tooth sensitivity.

Main Methods:

• A randomized, controlled, split-mouth clinical study involving 252 teeth from 42 patients.
• Seven groups were established, including placebo, various fluoride varnishes, sodium fluoride, and potassium oxalate.
• Three applications were administered weekly, with sensitivity assessed using a three-score system after each application and at 30 days.

Main Results:

• All tested materials, except placebo and sodium fluoride, showed statistically significant reductions in CDH after the second week compared to baseline.
• Potassium oxalate (G7) demonstrated a significant, gradual reduction in sensitivity over the evaluated time intervals.
• Fluoride varnishes also proved effective in managing dentin hypersensitivity.

Conclusions:

• Potassium oxalate and fluoride varnishes are effective desensitizing agents for cervical dentin hypersensitivity.
• Placebo and sodium fluoride showed limited efficacy in reducing dentin hypersensitivity symptoms.
• Clinical qualification of desensitizing agents is crucial for effective CDH treatment.