Dx and Tx Planning for RPDs

What are the sources of sensory input of the oral cavity?

Periodontal mechanoreceptorsGingivaMucosaPeriosteum/boneTMJLoss of teeth leads to loss of precision guidance

Patient Interview

Register CCMedical and dental HxPatient expectations

T/F: A thorough and complete oral prophylaxis is one of the first appointments that should be completed when planning for an RPD.


When giving the definitive oral exam, it is important to determine the height of what two landmarks?

Determine the height of the floor of the mouth (decides on lingual plate vs bar)Determine the length of the frenal attachment (decides on infrabulge or circumferential clasp)

A clasp is supposed to go ___________ the height of contour.

Below (lower 1/3 of tooth)

What are two ways to create an artificial HoC?

Survey crownComposite build up

T/F: During soft tissue examination, we want to see loose, non-keratinized mucosa on the alveolar ridges.

FALSEWe want to see firmly bound, keratinized mucosa on the alveolar ridges.

How tall must the floor of the mouth be to utilize a lingual bar?

8 mm or tallerIf it is shorter than 8 mm, must use a lingual plate

What are some important reasons to make diagnostic casts?

Assist in preliminary design - after analyzed on dental surveyorAid in determining sequence of txAnalysis of path of placement and removalShows tooth contours and interarch distanceDevelopment of rest seat preparations

T/F: Improvement to the natural occlusion must precede RPD fabrication.


What are some indications for a fixed partial denture?

Short tooth bound spaceAnterior modification spacesEsthetics

What are some indications for a RPD?

Distal extensionLong spanEconomicsBilateral stabilization