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Dentifrice abrasiveness on microfill composite resin and dentin: a comparative study
L Settembrini1, B Penugonda, E Fischer
1New York University College of Dentistry.
Summary
This study found Rembrandt Whitening Toothpaste to be the least abrasive option for dental surfaces. It showed significantly less wear on composite resins and dentin compared to other tested toothpastes.
Area of Science:
- Dental Materials Science
- Restorative Dentistry
Background:
- Dental restorative materials, such as microfill composite resins, are susceptible to surface abrasion.
- Dentin, a critical component of teeth, can also be adversely affected by abrasive agents in oral hygiene products.
Purpose of the Study:
- To evaluate and compare the abrasiveness of seven different dentifrices.
- To determine the impact of these dentifrices on microfill composite resin and dentin surfaces in vitro.
Main Methods:
- An in vitro experimental design was employed.
- Microfill composite resin discs and dentin specimens were subjected to 2400 brushing strokes using seven dentifrice slurries.
- Surface roughness was assessed using a mechanical profiler and scanning electron microscopy.
Main Results:
- Rembrandt Whitening Toothpaste demonstrated significantly lower abrasiveness compared to the other six dentifrices tested (p < .05, ANOVA).
- Quantitative and qualitative analyses confirmed minimal surface alteration with Rembrandt Whitening Toothpaste on both composite resin and dentin.
Conclusions:
- Rembrandt Whitening Toothpaste exhibits superior low-abrasivity properties for dental restorative materials and dentin.
- Further clinical investigations are recommended to validate these findings, particularly concerning long-term use of dentifrices.