Prosthodontics
Principles
Prosthodontic questions test occlusal principles, retention and stability, and the choice between fixed, removable, and implant-supported options. Know the differences between complete denture retention (physical forces, adaptation, saliva) and stability (resistance to horizontal forces). Understand the rationale for balanced occlusion, the importance of the neutral zone, and the role of the vertical dimension of occlusion. For fixed prosthodontics, know preparation design, margin placement, and the value of a ferrule.
Traps in question stems
A frequent trap is choosing the most complex prosthesis when a simpler one meets the patient's needs. Questions may test whether a patient is a candidate for implants given bone volume, systemic health, or parafunction. Another trap is confusing esthetic preference with functional requirement. Watch for questions about when a removable partial denture is preferable to a fixed bridge, especially where abutment teeth are compromised.
Rule of thumb
Use the "simplest prosthesis that satisfies function, esthetics, and prognosis" rule. If the patient cannot maintain it or the abutments are compromised, reconsider the design. For dentures, verify that retention and stability are both addressed, not just one.
Worked example
A patient with a shortened dental arch and healthy remaining teeth requests replacement of missing molars. The examinable answer may be no treatment if function and esthetics are acceptable, rather than a complex implant reconstruction.