Evaluation of Dentin Tubule Occlusion Using Diode Laser and Shield Force Plus: A Comparative Study

Area of Science:

• Dentistry
• Biomaterials Science

Background:

• Dentin hypersensitivity involves sharp pain from exposed dentin tubules.
• Effective occlusion of dentinal tubules is crucial for managing hypersensitivity.

Purpose of the Study:

• To evaluate dentinal tubule occlusion using a diode laser, Shield Force Plus, and their combination.
• To compare the efficacy of these treatments in reducing dentinal tubule patency.

Main Methods:

• Forty-five human premolars were used, with dentin surfaces prepared.
• Teeth were divided into five groups: negative control, positive control, diode laser, Shield Force Plus, and combined treatment.
• Scanning electron microscopy at 2000x magnification analyzed dentinal tubule occlusion.

Main Results:

• The positive control group showed the highest percentage of open tubules (10.52%).
• The combined diode laser and Shield Force Plus group exhibited the lowest open tubule percentage (0.22%).
• Both diode laser and Shield Force Plus significantly reduced open tubules compared to the positive control (P<0.001).

Conclusions:

• Diode laser, Shield Force Plus, and their combination are effective in occluding dentinal tubules.
• No significant difference in tubule occlusion efficacy was observed among the three tested methods.