Pfc exam UPDATED ACTUAL Questions and CORRECT Answers

Pfc exam UPDATED ACTUAL Questions
and CORRECT Answers
What is an impression - CORRECT ANSWER -negative reproduction of oral tissues



Preliminary impressions are used for - CORRECT ANSWER -Diagnostic models,
custom trays,
provisional coverage,
orthodontic appliances,
pretreatment and post treatment records


Final impressions - CORRECT ANSWER -Taken by the dentist and are used to produce
the most accurate reproduction of the teeth and surrounding tissue


- dentures or implantsn


Bite registration - CORRECT ANSWER -an impression of the upper and lower teeth in
the patient's normal bite relation


impression trays used to hold - CORRECT ANSWER -Impression material in mouth



Two types of trays - CORRECT ANSWER -Stock
Custom


Stock trays are - CORRECT ANSWER -Metal or plastic
Material can go through holes
Locks material in place

, A quadrant trays covers - CORRECT ANSWER -half of a dental arch



section trays cover - CORRECT ANSWER -anterior portion of arch



Full arch trays cover... - CORRECT ANSWER -entire arch



Maxillary trays cover tuberosity of - CORRECT ANSWER -2-3mm


Anterior teeth =3-4mm ( palate)
4mm wider of alveolar process (molars)


Mandibular trays cover retromolar pad of - CORRECT ANSWER -2-3mm



How to improve trays - CORRECT ANSWER -Utility wax
Depth of tray coverage
Length of trays


Intra oral inspection for impression trays - CORRECT ANSWER -Height of palate
Soft tissue
Displaced teeth
Presence of 8s or appliances


What does a pre procedural mouth rinse do for impressions - CORRECT ANSWER -
Reduce microorganisms
Prevents bubbles


Positions to insert max impression tray - CORRECT ANSWER -From behind