ADEX Prosthodontic Examination
Practice Exam 2026 | 100 Advanced
Questions & Answers with Detailed
Rationales | ADEX Dental Licensing
Exam Prep & Study Guide
1. A patient presents with a severely resorbed mandibular ridge and a
complete denture that repeatedly dislodges during speech and mastication.
Which impression philosophy is most appropriate?
A. Mucostatic impression with minimal pressure
B. Selective-pressure impression technique
C. Heavy-body impression with uncontrolled pressure
D. Alginate preliminary impression used as the definitive impression
Answer: Selective-pressure impression technique
Rationale: The selective-pressure technique directs functional pressure toward
stress-bearing areas while relieving vulnerable tissues. This is particularly
advantageous in severely resorbed ridges where preservation of the residual
ridge and denture stability are major concerns.
, 2. During fabrication of a complete denture, the occlusal vertical dimension is
increased excessively. Which clinical finding is most likely?
A. Increased freeway space
B. Decreased facial height
C. Muscle fatigue, soreness, and difficulty with speech
D. Increased mandibular rest position
Answer: Muscle fatigue, soreness, and difficulty with speech
Rationale: Excessive occlusal vertical dimension reduces interocclusal rest space
and may produce muscle fatigue, discomfort, clicking during speech, strained
facial appearance, and difficulty pronouncing certain sounds.
3. A patient has a highly displaceable fibrous mandibular ridge. Which
impression approach is most appropriate?
A. Maximum-pressure impression
B. Controlled impression technique that minimizes displacement of the mobile
tissue
C. Deep border molding with rigid pressure
D. Unmodified stock-tray impression
Answer: Controlled impression technique that minimizes displacement of the
mobile tissue
Rationale: Mobile fibrous tissue can be displaced during impression making and
rebound after insertion, creating an unstable denture. The tissue should be
recorded in a relatively undisplaced state with appropriate relief and controlled
pressure.
4. Which factor has the greatest influence on the stability of a complete
denture?
A. Shade of the artificial teeth
B. Posterior tooth anatomy alone
C. Proper extension and adaptation of the denture base within the functional
,limits of the tissues
D. Thickness of the polished surface only
Answer: Proper extension and adaptation of the denture base within the
functional limits of the tissues
Rationale: Denture stability depends heavily on accurate adaptation,
appropriate border extension, tissue support, and control of horizontal forces.
5. In a patient with a pronounced Class II jaw relationship, which posterior
tooth arrangement may help minimize unfavorable horizontal forces?
A. Extremely steep cusps
B. Reduced cusp inclinations with an appropriate occlusal scheme
C. Maximum posterior overjet
D. Completely random tooth positioning
Answer: Reduced cusp inclinations with an appropriate occlusal scheme
Rationale: Reduced cusp inclinations can decrease lateral forces, particularly
when ridge anatomy and jaw relationships make horizontal forces difficult to
control.
6. A complete denture patient reports that the mandibular denture lifts
during chewing on one side. What is the most likely cause?
A. Excessive denture-polishing smoothness
B. Occlusal imbalance producing tipping forces
C. Excessive saliva
D. Correctly balanced centric contacts
Answer: Occlusal imbalance producing tipping forces
Rationale: Premature or unbalanced occlusal contacts can generate tipping and
rotational forces that destabilize a mandibular denture during function.
7. Which landmark is considered a primary support area for the mandibular
complete denture?
, A. Mylohyoid ridge
B. Mental foramen
C. Buccal shelf
D. Lingual frenum
Answer: Buccal shelf
Rationale: The mandibular buccal shelf is a favorable primary stress-bearing
area because its underlying cortical bone is relatively dense and oriented to
receive functional occlusal forces.
8. A patient demonstrates a low, flat mandibular residual ridge. Which
occlusal concept is generally most appropriate?
A. Extremely steep cusps
B. An occlusal scheme that minimizes destabilizing lateral forces
C. Maximum incisal guidance
D. Posterior teeth positioned far outside the ridge
Answer: An occlusal scheme that minimizes destabilizing lateral forces
Rationale: Flat ridges provide reduced resistance to horizontal displacement.
Occlusal designs should therefore minimize lateral forces and enhance denture
stability.
9. Which impression material is commonly used for definitive impressions of
edentulous arches because it can provide accurate detail and appropriate
working time when properly manipulated?
A. Modeling compound alone for all tissues
B. Elastomeric impression material
C. Irreversible hydrocolloid exclusively
D. Zinc phosphate cement
Answer: Elastomeric impression material
Practice Exam 2026 | 100 Advanced
Questions & Answers with Detailed
Rationales | ADEX Dental Licensing
Exam Prep & Study Guide
1. A patient presents with a severely resorbed mandibular ridge and a
complete denture that repeatedly dislodges during speech and mastication.
Which impression philosophy is most appropriate?
A. Mucostatic impression with minimal pressure
B. Selective-pressure impression technique
C. Heavy-body impression with uncontrolled pressure
D. Alginate preliminary impression used as the definitive impression
Answer: Selective-pressure impression technique
Rationale: The selective-pressure technique directs functional pressure toward
stress-bearing areas while relieving vulnerable tissues. This is particularly
advantageous in severely resorbed ridges where preservation of the residual
ridge and denture stability are major concerns.
, 2. During fabrication of a complete denture, the occlusal vertical dimension is
increased excessively. Which clinical finding is most likely?
A. Increased freeway space
B. Decreased facial height
C. Muscle fatigue, soreness, and difficulty with speech
D. Increased mandibular rest position
Answer: Muscle fatigue, soreness, and difficulty with speech
Rationale: Excessive occlusal vertical dimension reduces interocclusal rest space
and may produce muscle fatigue, discomfort, clicking during speech, strained
facial appearance, and difficulty pronouncing certain sounds.
3. A patient has a highly displaceable fibrous mandibular ridge. Which
impression approach is most appropriate?
A. Maximum-pressure impression
B. Controlled impression technique that minimizes displacement of the mobile
tissue
C. Deep border molding with rigid pressure
D. Unmodified stock-tray impression
Answer: Controlled impression technique that minimizes displacement of the
mobile tissue
Rationale: Mobile fibrous tissue can be displaced during impression making and
rebound after insertion, creating an unstable denture. The tissue should be
recorded in a relatively undisplaced state with appropriate relief and controlled
pressure.
4. Which factor has the greatest influence on the stability of a complete
denture?
A. Shade of the artificial teeth
B. Posterior tooth anatomy alone
C. Proper extension and adaptation of the denture base within the functional
,limits of the tissues
D. Thickness of the polished surface only
Answer: Proper extension and adaptation of the denture base within the
functional limits of the tissues
Rationale: Denture stability depends heavily on accurate adaptation,
appropriate border extension, tissue support, and control of horizontal forces.
5. In a patient with a pronounced Class II jaw relationship, which posterior
tooth arrangement may help minimize unfavorable horizontal forces?
A. Extremely steep cusps
B. Reduced cusp inclinations with an appropriate occlusal scheme
C. Maximum posterior overjet
D. Completely random tooth positioning
Answer: Reduced cusp inclinations with an appropriate occlusal scheme
Rationale: Reduced cusp inclinations can decrease lateral forces, particularly
when ridge anatomy and jaw relationships make horizontal forces difficult to
control.
6. A complete denture patient reports that the mandibular denture lifts
during chewing on one side. What is the most likely cause?
A. Excessive denture-polishing smoothness
B. Occlusal imbalance producing tipping forces
C. Excessive saliva
D. Correctly balanced centric contacts
Answer: Occlusal imbalance producing tipping forces
Rationale: Premature or unbalanced occlusal contacts can generate tipping and
rotational forces that destabilize a mandibular denture during function.
7. Which landmark is considered a primary support area for the mandibular
complete denture?
, A. Mylohyoid ridge
B. Mental foramen
C. Buccal shelf
D. Lingual frenum
Answer: Buccal shelf
Rationale: The mandibular buccal shelf is a favorable primary stress-bearing
area because its underlying cortical bone is relatively dense and oriented to
receive functional occlusal forces.
8. A patient demonstrates a low, flat mandibular residual ridge. Which
occlusal concept is generally most appropriate?
A. Extremely steep cusps
B. An occlusal scheme that minimizes destabilizing lateral forces
C. Maximum incisal guidance
D. Posterior teeth positioned far outside the ridge
Answer: An occlusal scheme that minimizes destabilizing lateral forces
Rationale: Flat ridges provide reduced resistance to horizontal displacement.
Occlusal designs should therefore minimize lateral forces and enhance denture
stability.
9. Which impression material is commonly used for definitive impressions of
edentulous arches because it can provide accurate detail and appropriate
working time when properly manipulated?
A. Modeling compound alone for all tissues
B. Elastomeric impression material
C. Irreversible hydrocolloid exclusively
D. Zinc phosphate cement
Answer: Elastomeric impression material
