Dentures guide, photos of dental prosthesis, denture cost and prosthodontics info

Attachments for Removable Partial Dentures can be categorized into: intracoronal attachment or extracoronal attachment, rigid attachment or resilient attachment, and precision attachment or semi-precision attachment.

Let’s limit the discussion on the first 2 categories of attachments mentioned, the intracoronal attachment and extracoronal attachments. Intracoronal attachment for removable partial denture is either cast or attached totally within the natural contours of an abutment tooth or teeth. Typically, it is composed of prefabricated key and keyway with opposing parallel walls, which serve to limit movement and resist removal of removable partial denture through friction. The principle of internal attachment was formulated by Dr. Herman E.S. Chayes in 1906.

O-SO distal extension attachment male component on the proximal of the Fixed Partial Denture

A lower Unilateral Extension Fixed Partial Denture was fabricated with the purpose of restoring the center of occlusion, and create a premolar occlusion. The Cantilever Fixed Partial Denture design will also provide functional stability for the complete denture on the upper. It will also protect the anterior part of the maxillary ridge from excessive load or resorption.

Minimal occlusal preparation was done on both premolars. Selective grinding on maxillary denture was done to obtain balanced occlusion in the muscular contact position.

Unilateral Extension Fixed Partial Denture (abutments are 44 and 45, missing teeth are 46, 47 and 48 with only the first molar restored)

Cantilever Fixed Partial Denture

Screw Retained Denture

To overcome problems in Prosthodontics, dental screws can be used. Screws may permit combination of advantages of fixed partial dentures and removable partial dentures.

A Fixed Partial Denture is the restoration of choice where the edentulous area is small. But the problem of malaligned abutment results to too much tooth tissue to be removed to the extent that inadequate retention is achieved. Dental screws can be used where the restoration is made in two parts and secure these parts with Dental Screws.

Screw retained Dental Prosthesis allows damaged pontics be removed and modified. Screws facilitate routine maintenance as the area under the pontics can be examined by unscrewing them.

Metal Ceramic Dental Bridge was made for a 22 year old male patient. Missing teeth are 11 and 21 FDI Two-Digit Notation or upper right central incisor and upper left central incisor. Tooth numbers 12 and 22 FDI (upper right lateral incisor and upper left lateral incisor) were prepared as abutments for the 4-unit Porcelain Fused to Metal Fixed Partial Denture.

Palatal of 4-unit Porcelain Fused to Metal Restoration

Eight-year-old Porcelain Fused to Metal Crown and Bridge which exhibited marginal breakdown, asymmetric gingival form and ridge lap pontics.

5 Unit Porcelain Fused to Metal Fixed Partial Denture.