ced5a5f5e9 The metal clasp and rest immediately adjacent to the denture teeth is also a direct retainer.) Indirect Retainer (An example is the little metal piece coming off the "U" at a 90 degree angle near the top of the upper photo, which is a cingulum rest on a canine.) Physical Retainer (This is a mesh of metal that allows the pink base material to connect to the metal framework of the RPD. Thus if, for example, a maxillary arch is missing teeth #1, 3, 7-10 and 16, the RPD would be Kennedy Class III mod 1. Partially edentulous conditions[edit]. Clasp design[edit]. However, if the edentulous area described in the previous paragraph crosses the anterior midline (that is, at least both central incisors are missing), the RPD is classified as a Class IV RPD. stator winding insulation. Message: The specified method is not allowed against this resource.
Steffel. Method: POST. A removable partial denture (RPD) is a denture for a partially edentulous patient who desires to have replacement teeth for functional or aesthetic reasons and who cannot have a bridge (a fixed partial denture) for any number of reasons, such as a lack of required teeth to serve as support for a bridge (i.e. All seven parts of an RPD are visible on this example. Class I (bilateral free ended partially edentulous) Class II (unilateral free ended partially edentulous) Class III (unilateral bounded partially edentulous) Class IV (bilateral bounded anterior partially edentulous) . Unlike Class I and Class II RPDs which are both tooth-and-tissue-borne (meaning they both clasp onto teeth, as well as rest on the posterior edentulous area for support), Class III RPDs are strictly tooth-borne, which means they only clasp onto teeth and do not need to rest on the tissue for added support. Class I, II and III RPDs that have multiple edentulous areas in which replacement teeth are being placed are further classified with modification states that were defined by Oliver C.
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