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The Effect of a High-sucrose Diet on Dentin Formation and Dental Caries in Hyperinsulinemic Rats

¹ Institute of Dentistry, PO Box 5281, FIN-90014 University of Oulu, Finland;
² Oulu University Hospital, Oulu, Finland;
³ Laboratory, Oulu University Hospital;
⁴ Oulu Municipal Health Centre, Oulu, Finland; and
⁵ Department of Endodontics, Faculty of Dentistry, University of Toronto, ON, Canada;

View larger version (15K): [in this window] [in a new window]   Figure 1. Dentin formation (µm2) during the experiment in the first and second molars. In the groups fed a high-sucrose diet, a significant (*p < 0.001, ANOVA with Tukey’s HSD) reduction in dentin formation was observed in both the first (A) and second (B) molars. Within both diet groups, exogenous insulin did not affect dentin formation. N=7 in sucrose and 8 in other groups.

View larger version (12K): [in this window] [in a new window]   Figure 2. Dentinal caries lesions (µm2) (A) in the first and (B) in the second molars. Dentinal caries was significantly (p < 0.05) increased in the high-sucrose diet groups in the second molars, when compared with the control-diet group (*) or with the control-diet-with-insulin groups (). The box reveals the first and third quartiles with median inside, and the "whiskers" show the highest and lowest values. Statistical analyses were performed by the Kruskal-Wallis ANOVA with the Mann-Whitney U test. N=7 in sucrose and 8 in other groups.

Journal of Dental Research, Vol. 81, No. 8, 536-540 (2002)
DOI: 10.1177/154405910208100807


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