Denture base considerations/ orthodontics information


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Denture base considerations/ orthodontics information

  1. 1. INDIAN DENTAL ACADEMY Leader in continuing dental education
  2. 2. Denture Base Considerations • Denture base supports artificial teeth and effects the transfer of occlusal sulcus to supporting structures. – Primary purpose is masticatory function. – Cosmetic effect of the replacement – Stimulation of the underlying tissues of the residual ridge. – Tooth supported partial denture base that replaces anterior teeth must perform the following
  3. 3. 1. To provide desirable esthetics. 2. Support artificial teeth in such a way they provide masticatory efficiency and assist in transferring occlusal forces directly to abutment teeth through. 3. To prevent vertical and horizontal migration of remaining natural teeth. 4. Eliminating undesirable food traps. 5. Stimulate underlying tissues.
  4. 4. • Primary Retention. It is for the removable partial denture is accomplished mechanically by placing retaining elements on the abutment teeth. Secondary Retention. It is provided by the intimate relationship of denture bases and major connectors (Maxillary) with the underlying tissues. The latter is similar to the retention of complete dentures and is proportionate to the accuracy of the impression registration, the accuracy of the fit of the denture bases, and the total area of contact
  5. 5. Retention of denture bases has been described as the result of the following forces: 1. Adhesion, which is attraction of the saliva to the denture base and tissues. 2. Cohesion, which is the attraction of the molecules of the saliva for each other. 3. Atmospheric pressure, which is dependent on a border seal and results in a partial vaccum beneath the denture base when a dislodging force is applied. 4. The physiologic molding of the tissues around the polished surfaces of the denture 5. The effect of gravity on the mandibular denture.
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