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Effect of Antimicrobial Agents on Root Surface Caries, Alveolar Bone Loss, and Microflora in Rice Rats

College of Dentistry, The Ohio State University, 305 W. 12th Avenue, Columbus, Ohio 43210

F.M. Beck

College of Dentistry, The Ohio State University, 305 W. 12th Avenue, Columbus, Ohio 43210

E.X. Beck

College of Dentistry, The Ohio State University, 305 W. 12th Avenue, Columbus, Ohio 43210

N. Flaxman

College of Dentistry, The Ohio State University, 305 W. 12th Avenue, Columbus, Ohio 43210

S. Rosen

Veterans Administration Medical Center, Dayton, Ohio 45428

Two antimicrobial agents, 9-aminoacridine (0.2%) and minocycline (0.2%), were evaluated for their efficacy in inhibiting root surface caries, bone loss, and microflora in rice rats. A solution of 5000 ppm fluoride was used as a positive control for the inhibition of root surface caries, and double-distilled water was used as a negative control group. Each rat was treated by having its molar teeth swabbed 2 x per day with the prescribed agent in its group for nine weeks. Root caries reduction in the minocycline and fluoride groups was not significantly different, but the reduction was significantly greater than in the 9-aminoacridine group, with the caries score in all three groups being significantly less than that in the water control. Bone loss reduction for the minocycline group was significantly greater than that for any other group.

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Journal of Dental Research, Vol. 65, No. 5, 695-697 (1986)
DOI: 10.1177/00220345860650051301


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