Questions And Answers 2025 Updated
What is the crown that attaches to the abutment? CORRECT ANSWERS Retainer
When will Bridge have poor prognosis? CORRECT ANSWERS 1. HALF OR LESS
Supporting Bone
2. Single Retainer CANTILEVER
3. Multiple-Splinted Abutment Teeth
4. NON-RIGID Connector
5. Intermediate Abutments - Pier
Intermediate Abutment -Pier CORRECT ANSWERS Tooth that is adjacent to
EDENTULOUS of Bridge that acts as support
Which teeth should not be used as Bridge Abutments? CORRECT ANSWERS 1.
Compromised Endodontically-Treated Teeth
2. Periodontally Compromised Teeth
Crown-to-Root Ratio CORRECT ANSWERS 1. 1:2 is IDEAL
2. 2:3 is REALISTIC
3. 1:1 is MINIMUM
4. 2:1 is POOR
Ante's Law CORRECT ANSWERS PDL Surface Area of Abutment Teeth should be
EQUAL TO OR GREATER than PDL Surface Area of Missing Teeth
Splinting CORRECT ANSWERS 1. DISTRIBUTES Occlusal Forces
2. Recommended when Ante's Law FAILS
Which teeth need to be splinted when replacing a canine with a bridge? CORRECT
ANSWERS Central and Lateral Incisors to PREVENT LATERAL drifting of bridge
What is the preferred root shape for abutment teeth? CORRECT ANSWERS 1.
Divergent
2. Multiple
3. Curved
4. Broad
When are Partial Dentures indicated? CORRECT ANSWERS 1. Distal Extension
2. Long Span
3. Bone Loss around Abutment Teeth
4. Cost
,Combination Syndrome CORRECT ANSWERS 1. Occurs when MX CD is opposing
ONLY MD ANTERIORS
2. OVERGROWTH of Tuberosities
3. Papillary Hyperplasia on PALATE
4. EXTRUSION of MD Anterior Teeth
5. Bone Loss under Partial Denture Base
Cement-Retained Implant CORRECT ANSWERS 1. More-Economical
2. Allows MINOR Angle Correction
3. EASIER to use for SMALLER TEETH
4. Requires MORE CHAIR TIME and can LOOSEN
5. EXCESS Cement can lead to Peri-Implantitis
Screw-Retained Implant CORRECT ANSWERS 1. Retrievability allows for good
maintenance
2. Access hole is through OCCLUSAL for POSTERIOR and LINGUAL for ANTERIOR
3. Screw may LOOSEN over time
Alginate CORRECT ANSWERS 1. Material of choice for Diagnostic Casts
2. TRISODIUM PHOSPHATE controls Setting Rate
Alginate Impressions should be poured up within how many minutes? CORRECT
ANSWERS 15
Centric Relation CORRECT ANSWERS 1. When Condyles are articulating with
THINNEST AVASCULAR portion of Disk is the MOST ANTERIOR-SUPERIOR portion
of Articular Eminence
2. INDEPENDENT of Teeth
Maximum Intercuspation CORRECT ANSWERS 1. Complete interdigitation of teeth
2. INDEPENDENT of Condyles
How often do MI and CR coincide? CORRECT ANSWERS 10%
When to mount in MI CORRECT ANSWERS When MI is repeatable and stable
When to mount in CR CORRECT ANSWERS When MI is NOT repeatable or stable
What is the most reliable and reproducible position of the mouth? CORRECT
ANSWERS CR
What is most accurate way to get CR? CORRECT ANSWERS Bimanual Manipulation
Facebow Record CORRECT ANSWERS 1. Transfer MX Arch Relation with Skull
2. Transfer MD Arch Relation with Rotational Center of TMJs
, Arbitrary Facebow CORRECT ANSWERS Orients MX Cast to Skull via External
Auditory Meatus to stabilize the bow
Kinematic Facebow CORRECT ANSWERS Placed on Hinge Axis of Mandible
Nonadjustable Articular CORRECT ANSWERS 1. Does NOT reproduce full range of
MD Movement
2. Distance between Hinge and Teeth is SHORTER than IRL
3. May result in PREMATURE Contact and INCORRECT Ridge and Groove Direction
Semiadjustable Articular CORRECT ANSWERS 1. Allows you to set Bennett Angle (15)
and Horizontal Condylar Inclination (30)
2. Arcon
3. Non-Arcon
Arcon Semiadjustable Articulator CORRECT ANSWERS 1. Condyles are part of
LOWER
2. Fossa are part of UPPER
Non-Arcon Semiadjustable Articulator CORRECT ANSWERS Upper and Lower are
RIGIDLY attached
Casts made from alginate are more correctly mounted using what records? CORRECT
ANSWERS Wax Records
Casts made from elastomeric materials are more correctly mounted using what
records? CORRECT ANSWERS Elastomeric Materials
Condylar Guidance CORRECT ANSWERS 1. Slope of Articular Eminence
2. Represented by Horizontal Condylar Inclination on Articular
3. Posterior Determinant of Occlusion
Incisal Guidance CORRECT ANSWERS 1. Represented by Pin and Guide Table on
Articular
2. Anterior Determinant of Occlusion
Anterior Guidance CORRECT ANSWERS 1. Refers to both Incisal and Canine
Guidance
2. Ensures Posterior disarticulate during protrusive and lateral movements to avoid
interferences
Posterior Guidance CORRECT ANSWERS During occlusion, Posterior Teeth take the
brunt of the force, sparing the Anterior Teeth
Guide Table CORRECT ANSWERS 1. Can be used to preserve Anterior Guidance
2. Mechanical vs. Custom