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Variation in tooth wear in young adults over a two-year period
M R Pintado1, G C Anderson, R DeLong
1School of Dentistry, University of Minnesota, Minneapolis, USA.
Statement Of Problem:
Although all the processes of loss of hard tissue are important, attrition on the occlusal surfaces commands our attention.
Purpose Of Study:
The enamel wear rate of 18 young adults over 2 consecutive years was measured independently by volume loss and mean depth loss. Any significant differences in tooth wear resulting from gender and a clinical diagnosis of bruxism were identified.
Material And Methods:
A strict protocol for dental impressions provided epoxy models, which were digitized with a null point contact stylus. AnSur software provided a complete morphologic description of changes in the wear facets.
Results:
The mean loss for all teeth measured was 0.04 mm3 by volume and 10.7 microns by depth for the first year.
Conclusions:
These numbers were approximately doubled at 2 years of cumulative wear.