[The effect of measuring the curvature of soft palate to determine the position of posterior peripheral seal].

This study was undertaken to determine the feasibility of the surveyor of curvature in fabricating a full upper denture. 48 cases were investigated to determine the position of the posterior peripheral seal with the instrument. The results showed that the retention of the full upper denture was greater than that of the control-team. This method is more suitable for the patients with lower flat or higher palatal vault.