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Animal caries models for evaluating fluoride dentifrices

G K Stookey1, J M Warrick, L L Miller

  • 1Indiana University School of Dentistry, Oral Health Research Institute, Indianapolis 46202-2876, USA.

Advances in Dental Research
|November 1, 1995
PubMed
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Animal caries models effectively evaluate fluoride dentifrices, detecting cariostatic benefits and fluoride concentration responses. These models also show potential for predicting non-fluoride systems and preventing root-surface caries.

Area of Science:

  • Dental research
  • Cariology
  • Preclinical models

Background:

  • Fluoride dentifrices are crucial for dental caries prevention.
  • Evaluating the efficacy of new anti-caries agents requires reliable models.
  • Animal models are essential tools in dental research for preclinical evaluations.

Purpose of the Study:

  • To assess the efficacy of four distinct rat coronal caries models.
  • To determine if these models can evaluate the cariostatic potential of fluoride dentifrices.
  • To explore the predictive capabilities of animal models for non-fluoride anti-caries systems and root-surface caries prevention.

Main Methods:

  • Evaluation of four established rat coronal caries models: Francis' hypomineralized area model, Gaffar's CARA rat model, the Connecticut model, and the Indiana model.

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  • Analysis of existing data on the performance of these models in detecting cariostatic effects.
  • Assessment of model responses to varying concentrations and forms of fluoride (ionic vs. complexed).

    • Main Results:

    • All four evaluated rat caries models successfully detected significant cariostatic benefits from clinically proven fluoride dentifrices.
    • The models generally demonstrated a dose-response relationship with increasing fluoride concentrations, especially for ionic fluoride.
    • Data suggested the potential utility of these animal models for predicting the clinical efficacy of non-fluoride anti-caries systems and for evaluating fluoride's role in preventing root-surface caries.

    Conclusions:

    • Animal caries models play a vital role in the development and evaluation of anti-caries agents, including fluoride dentifrices.
    • These models are capable of assessing cariostatic potential and predicting clinical benefits.
    • The use of animal models is recommended for the comprehensive evaluation of dental caries prevention strategies.