Abstract
In the case of old mobile denture wearers, one of the main problems is related to the dentures’ retention and insufficient stability. Our goal was to improve support and stability using a different type of final impression, with different types of impression materials. In this study we chose a number of three complete edentulous patients who presented for complete oral rehabilitation. They were wearing full acrylic dentures with poor support and stability. Complete examination revealed the presence of the flabby ridge. The impression methods for the prosthetic fields with a flabby ridge differ from the classical method by using techniques that involve the use of at least two impression materials with fluid consistency to record all the details of the prosthetic fields in the final impression, this being done in two steps; the impression of the flabby ridge areas must be done without pressure, in its resting position. The impression methods we applied led to the expected results, and the dentures succeeded in offering the patient the desired functional comfort. Using fluid impression material for the flabby ridge in a resting position, and a fenestrated custom tray, offered a good quality in adaptation, maintenance and stability of the final dentures.
Highlights
The restoration of the dento-maxillary system functions by total prostheses depends on the correct evaluation of the balance between the positive and negative elements of the support areas, the suction areas and the neutral ones of the totally edentulous prosthetic fields
Resorption and atrophy of the alveolar ridge are essential factors that contribute to compromising the retention and stability of mobile prostheses
The management of the negative elements of the prosthetic field extending the basic principles of making complete dentures, without resorting to invasive can be achieved by extending the basic principles of making complete dentures, without procedures
Summary
The restoration of the dento-maxillary system functions by total prostheses depends on the correct evaluation of the balance between the positive and negative elements of the support areas, the suction areas and the neutral ones of the totally edentulous prosthetic fields. The negative balance of the prosthetic fields represents for the dentist-technician team a moment of great responsibility in choosing the treatment plan. These negative parameters are given by complex interactions of multiple factors such as the intimate adaptation of the mucous-bone support at the base of the denture, its maximum extension, the presence of salivary film, a correct occlusion, the presence of natural tooth antagonists or other pore fitting dentures. Resorption and atrophy of the alveolar ridge are essential factors that contribute to compromising the retention and stability of mobile prostheses. Patients wearing mobile dentures require special attention due to compromised oral anatomy, reduced adaptive capacity, systemic disorders and their corresponding medication, a combination of factors that significantly diminish patients’
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