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Author Spotlight: Enhancing Dental Pulp Research with Improved Mouse Models
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In Vivo Pulp Temperature Changes During Class V Cavity Preparation and Resin Composite Restoration in Premolars
Operative Dentistry
|August 9, 2021
Summary
The sequence of restorative steps in Class V cavities did not pose a thermal risk to the pulp. While some procedures slightly decreased pulp temperature (PT), none caused concerning heat increases during dental restoration.
Area of Science:
- Dental Materials Science
- Restorative Dentistry
- Biomaterials
Background:
- Pulp temperature (PT) changes during dental restorative procedures are critical for pulp vitality.
- Understanding the impact of restorative material sequencing and light-curing parameters on PT is essential for clinical practice.
Purpose of the Study:
- To evaluate the influence of restorative step sequencing in Class V preparations on pulp temperature in human premolars.
- To compare the pulp temperature rise associated with different resin composite materials and curing times.
Main Methods:
- In vivo study on human premolars using a Class V preparation model.
- Pulp temperature was monitored using a thermocouple probe inserted into the pulp chamber.
- Three resin composites (Filtek Z250, Filtek Z350 XT, Tetric N Ceram Bulk Fill) were evaluated with varying light-curing exposures.
Main Results:
- Cavity preparation and etch & rinse steps led to a decrease in pulp temperature.
- Filtek Z350 XT cured for 40 seconds resulted in the highest peak pulp temperature and temperature difference (ΔT).
- Tetric N Ceram Bulk Fill exhibited the lowest pulp temperature values.
Conclusions:
- None of the tested restorative procedures or materials caused a pulp temperature increase that posed a risk of thermal damage.
- The specific sequencing of restorative steps and material choice did not lead to clinically significant thermal insult to the pulp.
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