Effect of chewing rawhide and cereal biscuit on removal of dental calculus in dogs
Lage, A.; Lausen, N.; Tracy, R.; Allred, E.
Journal of the American Veterinary Medical Association 197(2): 213-219
1990
ISSN/ISBN: 0003-1488 PMID: 2384322 Document Number: 134
The effect of chewing rawhide and cereal biscuit on removal of dental calculus was studied in 67 dogs. Two methods were used to measure supragingival calculus and calculus removal as a function of time and acceptability. Trial 1 used a quantitative method based on actual measurement of the area of calculus on a tooth, and trial 2 used a quantitative method based on an arbitrary grading system to established a supragingival calculus index. Analysis was performed, used 2-factor (trial 1) and a 3-factor (trial 2) analysis of variance. Results indicated that dogs removed calculus from their teeth by chewing rawhide; some teeth were cleaned better than others. The optimal amount or frequency of rawhide treatment was not necessarily determined. It was determined that regular consumption of up to 3 rawhide strips/d for 3 weeks was safe. Processed biscuits were sometimes effective in removing calculus from dog's teeth; however, biscuits were not as effective as the rawhide in removing supragingival calculus.
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