Clasps for tooth-borne partial dentures (Class III, IV) have one function (to prevent dislodgment of the prosthesis without damage to the abutment teeth). These clasps can also be used in modification spaces for tooth - tissue supported removable partial dentures (Class I, II).
Six basic types of maxillary major connectors are considered: Single palatal strap. Combination anterior and posterior palatal strap-type connector. Palatal plate-type connector. U-shaped palatal connector. Anterior-posterior palatal bars. Single palatal bar
The unit of a removable partial denture that connects the various parts of the denture. Its principal functions are to provide unification and rigidity to the denture.
Rest: A rigid component of a removable partial denture which rests in a recessed preparation on the occlusal, lingual or incisal surface of a tooth to provide vertical support for the denture. Although a rest is a component of a direct retainer (retentive unit, clasp assembly), the rest itself is classified as a supporting element due to the nature of its function.
This objective is achieved by a careful evaluation of a patient’s study casts. The instrument used to aid the examination of the study casts is called a dental surveyor and the procedure is known as surveying.
In its simplest form, a lever is a rigid bar supported somewhere along its length. It may rest on the support or may be supported from above. The support point of the lever is called the fulcrum, and the lever can move around the fulcrum.
Prosthodontics is the branch of dentistry pertaining to the restoration and maintenance of oral function, comfort, appearance, and health of the patient by the restoration of the natural teeth and/or replacement of missing teeth and contiguous oral and maxillofacial tissues with artificial substitutes Prosthodontics has four major divisions: 1-Removable prosthodontics 2-Fixed prosthodontics 3-Maxillofacial prosthodontics 4-Implant prosthodontics
Various types of Classification Cummer’s Classification. 1920 Kennedy’s Classification. 1925 Applegate Classification. 1960 ACP Classification. 2002
A part of a removable partial denture that prevents rotational displacement of the denture about the rests of the principal abutment teeth. Indirect retainers usually take the form of rests, on the opposite side of a fulcrum line.
Prosthodontics is the branch of dentistry pertaining to the restoration and maintenance of oral function, comfort, appearance, and health of the patient by the restoration of the natural teeth and/or replacement of missing teeth and contiguous oral and maxillofacial tissues with artificial substitutes Pr