Introduction to Removable Partial Dentures Flashcards
what are dental prosthesis
artifical replacement of 1 or more teeth and/or associated structures
what are fixed partial dentures
prosthesis replacing teeth in partially dentate arches
- not designed to be removed by the patient
what are removable partial dentures
prosthesis replacing teeth in partially dentate arch
- designed to be removed by the patient
what is an abutment
tooth used to support prosthesis
what is a tooth supported RPD
RPD that depends entirely on natural teeth for support
what is a tooth tissue supported RPD
extension base RPD
- RPD supported and retained by teeth at only one end
- denture based is supported by teeth and the residual ridge
what are the indications for RPDs
- edentulous area too long or numerous for a fixed pros
- need to restore lost soft and hard alveolar tissue especially in anterior ergion
- reduced periodontal support of remaining teeth
- need to distribute masticatory stresses across the dental arch: cross arch stabilization
- no posterior abutment tooth
- immediate replacement of teeth
- attitiude and desires of patient
what are the disadvantages of RPDs
- removable not considered part of patient
- may be lost or borken
- clasps may be visible
- may dislodge during function
- may trap food while eating
what is the suprabuldge area
portion of tooth above the height of contour
what are prosthetics
art or science of replacing absent body parts
what are prosthesis
any artifical part
what is prosthodontics
branch of dentistry that pertains to the replacement of missing teeth and oral tissues
what are the divisions of prosthodontics
- fixed prosthodontics
-removable prosthodontics - maxillofacial prosthetics
what is a residual ridge
-residual bone and soft tissue covering that remains after tooth loss
what is CR
maxillomandibular relationship in which the condyles articulate with the thinnest avascular portion of their respective disks with the complex in the anterior- superior position against the slope of the articular eminence
- position independent of tooth contact
- position restricted to purely rotational motion
what is MIP
- maximal intercuspal position
- position with complete intercuspation of opposing teeth
- independent of condylar position
- previously called centric (habitual) occlusion
what is a model
reproduction for demonstration, accuracy not implied
what is a cast
an accurate positive reproduction of the maxillary or mandibular arch
what is a diagnostic cast
cast for the purpose of diagnosis and treatment planning
what is a master cast
replica of teeth, residual ridges, and other parts of the dental arch used to fabricate dental restorations and prosthesis
what is the height of contour/survey line
- line encircling a tooth that designates its greatest diameter at a selected position determined by a dental surveyor
height of contour will be changed if:
the axial inclincation is changed
what is the infrabuldge area and what might it also be referred to as
-portion of tooth below height of contour
- may also be referred to as undercut
what is an undercut
surface of object below the height of contour in relation to the path of placement
