A modified Kapur scale for evaluating denture retention and stability: methodology study

This study described a modification of a standard method for evaluating the retention and stability of complete denture prostheses. The upper ranges of the Kapur Scale for retention and stability were expanded to improve the sensitivity of this procedure. The standard and modified Kapur scales were also compared with a model using two denture adhesives that have demonstrated varying efficacies when evaluated by more refined laboratory instrumentation. This study verified that the modified Kapur scale was more capable of discriminating the effectiveness between the two denture adhesives, confirming the elevated sensitivity of the modified scale. This improvement of the Kapur scale could be valuable in conducting clinical efficacy trials of denture adhesives when more advanced methodologies present logistic problems.