Abstract
Purpose: We investigated diagnosis of the ridge contour and ridge mucosa for treatment of the denture patient, to discuss the need for examination, examination methods, and diagnosis (treatment planning) based on examination results.
Selection of study: Necessity of examination was discussed by presenting that buccolingual ridge contour and interridge relationship between maxilla and mandible, anteroposterior inclination of edentulous ridge, and tissue displacement influence on the stability or movement of denture, and furthermore the ridge contour and the property of ridge mucosa are affected by the bone resorption. As the examination method of the ridge contour, proposing to classify stress bearing area to vertical stress bearing area and horizontal stress bearing area, a method for analyzing the vertical stress bearing area and the buccolingual center of them related to artificial tooth arrangement, and anteroposterior inclination of ridge were shown. As examination method of ridge mucosa, measuring device for hardness (elastic modulus), vibration, and tissue activity were shown.
Results: It was shown that the above-mentioned examination methods were useful in diagnosing the ridge contour and mucosa property, and the legion of mucosal disease induced by denture. It is possible to make a diagnosis (treatment planning) for the ridge contour and properties and lesion of mucosa based on objective examination results.
