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Related Experiment Videos

Postoperative sensitivity: a comparison of two bonding agents.

W D Browning¹, J S Blalock, R S Callan

¹Department of Oral Rehabilitation, School of Dentistry, Medical College of Georgia, Augusta, GA, USA. wbrownin@mail.mcg.edu

Operative Dentistry

|April 13, 2007

Summary

This study found that both self-etching and separate-etching dental bonding agents significantly reduced tooth sensitivity to cold stimuli after 13 weeks. No significant difference in pain reduction was observed between the two types of agents.

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Area of Science:

Dental Materials Science
Pain Management
Restorative Dentistry

Background:

Postoperative tooth sensitivity to temperature has evolved from a thermal conduction theory to pulpal hydrodynamics.
Dentin bonding agents with acidic primers are thought to improve dentinal tubule seal compared to those requiring a separate etching step.

Purpose of the Study:

To compare postoperative pain associated with a cold stimulus between two types of dentin bonding agents.
To evaluate the efficacy of a self-etching, self-priming agent versus a self-priming agent requiring a separate etch step in reducing tooth sensitivity.

Main Methods:

A community-based, randomized, double-blind clinical trial involving 76 participants and 209 restorations.
Participants received restorations using either a self-priming resin with a separate etch step or a self-etching, self-priming dentin bonding agent.

Related Experiment Videos

Pain was assessed using a Visual Analog Scale (VAS) immediately after a cold stimulus and compared at 13 weeks post-procedure.

Main Results:

Both groups of restorations showed a significant reduction in median Visual Analog Scale scores at 13 weeks compared to preoperative scores.
The reduction in sensitivity at 13 weeks was below preoperative levels for both restoration types.
No statistically significant difference was found between the two groups regarding the change in tooth sensitivity at 13 weeks.

Conclusions:

Both tested dentin bonding agent systems effectively reduce postoperative tooth sensitivity to cold stimuli.
The choice between a self-etching, self-priming agent and a separate-etching agent does not significantly impact the reduction in tooth sensitivity at 13 weeks.