Related Experiment Videos
The surface effect of dentifrices.
I A Meyers1, M J McQueen, D Harbrow
1Department of Dentistry, University of Queensland.
Australian Dental Journal
|August 5, 2000
Summary
This study found no significant clinical differences in tooth or gingival health when using three commercial toothpastes compared to water alone over four weeks. All tested dentifrices were found to be safe for oral tissues.
Area of Science:
- Dental Science
- Oral Hygiene Research
- Materials Science in Dentistry
Background:
- Commercially available dentifrices are widely used for oral hygiene.
- Evaluating the clinical safety and surface effects of dentifrices on teeth and gingiva is crucial.
- Existing research may not fully address the comparative effects of different whitening and peroxide-containing formulations.
Purpose of the Study:
- To clinically evaluate three commercial dentifrices for their effects on tooth and gingival surfaces.
- To compare the outcomes of using specific dentifrices against brushing with water alone.
- To assess patient perceptions and subjective responses to the tested dentifrices.
Main Methods:
- A randomized controlled trial involving 64 participants over four weeks.
- Participants were assigned to four groups: water, Colgate (Baking Soda and Peroxide), Macleans (Whitening), or Colgate (Sensation Whitening).
- Clinical examinations, gingival index scoring, and polyvinyl siloxane impressions of anterior teeth were performed pre- and post-trial. Surface analysis utilized light and electron microscopy.
Main Results:
- No significant clinical differences were observed in gingival index scores or overall oral tissue condition across all groups.
- Microscopic analysis revealed no significant differences in tooth or gingival surface changes between dentifrice users and the water-only group.
- Patient responses to dentifrices were subjective and varied, with no consistent findings related to efficacy or preference.
Conclusions:
- None of the tested dentifrices demonstrated harmful effects on teeth or soft tissues.
- The clinical and surface effects of the evaluated dentifrices were comparable to brushing with water alone.
- Individual patient preferences, rather than objective clinical outcomes, influenced subjective responses to the dentifrices.