ADEX CSCE/OSCE 2026 — Latest -Question
Comprehensive Practice Exam with Answers & Rationales
Section 1 — Diagnosis, Treatment Planning & Patient Assessment
1. A patient presents with spontaneous, lingering pain to cold in a mandibular molar.
Which pulpal diagnosis is most likely?
A. Normal pulp
B. Reversible pulpitis
C. Irreversible pulpitis
D. Pulp necrosis
Rationale: Spontaneous pain and pain that lingers after removal of the thermal stimulus are
classic findings associated with symptomatic irreversible pulpitis.
2. A tooth is nonresponsive to cold and electric pulp testing and has a periapical
radiolucency. The most likely pulpal diagnosis is:
A. Normal pulp
B. Reversible pulpitis
C. Symptomatic irreversible pulpitis
D. Pulp necrosis
Rationale: Lack of response to appropriate vitality testing, especially with apical pathology,
strongly supports pulpal necrosis.
,3. Which clinical finding is most characteristic of symptomatic apical periodontitis?
A. No tenderness to percussion
B. Pain on biting or percussion
C. Generalized gingival enlargement
D. Positive cold response without pain
Rationale: Symptomatic apical periodontitis commonly produces tenderness to percussion
or biting because the periodontal ligament is inflamed.
4. A patient has a localized, fluctuant swelling associated with a nonvital tooth. The
most likely diagnosis is:
A. Chronic gingivitis
B. Periapical granuloma
C. Acute apical abscess
D. Fibroma
Rationale: A localized fluctuant swelling associated with a necrotic tooth is highly suggestive
of an acute apical abscess.
5. Which radiographic finding is most suggestive of chronic apical periodontitis?
A. Intact lamina dura
B. Periapical radiolucency associated with a nonvital tooth
C. Generalized horizontal bone loss only
D. Enlarged periodontal ligament throughout the dentition
Rationale: A well-defined periapical radiolucency associated with a necrotic tooth is
commonly associated with chronic apical inflammation.
,6. Before beginning elective dental treatment, which assessment is particularly
important?
A. Hair color
B. Medical history and current medications
C. Hand dominance only
D. Favorite food
Rationale: Medical conditions and medications can significantly alter dental treatment
planning, bleeding risk, infection risk, and drug selection.
7. A patient reports taking warfarin. What is the most appropriate initial response?
A. Tell the patient to discontinue it immediately
B. Refuse all dental treatment
C. Review the indication, medication history, and relevant coagulation information before
invasive treatment
D. Automatically prescribe aspirin
Rationale: Anticoagulants should not be discontinued independently. Treatment requires
appropriate medical and dental risk assessment.
8. Which medical condition is particularly important when assessing the risk of
hypoglycemia during dental treatment?
A. Osteoarthritis
B. Diabetes mellitus treated with glucose-lowering medications
C. Myopia
D. Seasonal allergies
, Rationale: Patients receiving glucose-lowering therapy may develop hypoglycemia,
particularly if meals and medication timing are disrupted.
9. Which radiograph is generally most useful for detecting interproximal caries?
A. Occlusal radiograph
B. Panoramic radiograph
C. Bitewing radiograph
D. Cephalometric radiograph
Rationale: Bitewings are particularly useful for detecting proximal caries and assessing
crestal alveolar bone levels.
10. A panoramic radiograph is particularly useful for:
A. Measuring exact proximal caries depth
B. Obtaining a broad overview of the jaws and dentition
C. Determining exact working length during endodontics
D. Measuring periodontal pocket depth
Rationale: Panoramic imaging provides a broad view of the maxillofacial structures, teeth,
and jaws.
Section 2 — Operative Dentistry
11. The primary goal of minimally invasive restorative dentistry is to:
A. Remove as much tooth structure as possible
B. Preserve healthy tooth structure while controlling disease
Comprehensive Practice Exam with Answers & Rationales
Section 1 — Diagnosis, Treatment Planning & Patient Assessment
1. A patient presents with spontaneous, lingering pain to cold in a mandibular molar.
Which pulpal diagnosis is most likely?
A. Normal pulp
B. Reversible pulpitis
C. Irreversible pulpitis
D. Pulp necrosis
Rationale: Spontaneous pain and pain that lingers after removal of the thermal stimulus are
classic findings associated with symptomatic irreversible pulpitis.
2. A tooth is nonresponsive to cold and electric pulp testing and has a periapical
radiolucency. The most likely pulpal diagnosis is:
A. Normal pulp
B. Reversible pulpitis
C. Symptomatic irreversible pulpitis
D. Pulp necrosis
Rationale: Lack of response to appropriate vitality testing, especially with apical pathology,
strongly supports pulpal necrosis.
,3. Which clinical finding is most characteristic of symptomatic apical periodontitis?
A. No tenderness to percussion
B. Pain on biting or percussion
C. Generalized gingival enlargement
D. Positive cold response without pain
Rationale: Symptomatic apical periodontitis commonly produces tenderness to percussion
or biting because the periodontal ligament is inflamed.
4. A patient has a localized, fluctuant swelling associated with a nonvital tooth. The
most likely diagnosis is:
A. Chronic gingivitis
B. Periapical granuloma
C. Acute apical abscess
D. Fibroma
Rationale: A localized fluctuant swelling associated with a necrotic tooth is highly suggestive
of an acute apical abscess.
5. Which radiographic finding is most suggestive of chronic apical periodontitis?
A. Intact lamina dura
B. Periapical radiolucency associated with a nonvital tooth
C. Generalized horizontal bone loss only
D. Enlarged periodontal ligament throughout the dentition
Rationale: A well-defined periapical radiolucency associated with a necrotic tooth is
commonly associated with chronic apical inflammation.
,6. Before beginning elective dental treatment, which assessment is particularly
important?
A. Hair color
B. Medical history and current medications
C. Hand dominance only
D. Favorite food
Rationale: Medical conditions and medications can significantly alter dental treatment
planning, bleeding risk, infection risk, and drug selection.
7. A patient reports taking warfarin. What is the most appropriate initial response?
A. Tell the patient to discontinue it immediately
B. Refuse all dental treatment
C. Review the indication, medication history, and relevant coagulation information before
invasive treatment
D. Automatically prescribe aspirin
Rationale: Anticoagulants should not be discontinued independently. Treatment requires
appropriate medical and dental risk assessment.
8. Which medical condition is particularly important when assessing the risk of
hypoglycemia during dental treatment?
A. Osteoarthritis
B. Diabetes mellitus treated with glucose-lowering medications
C. Myopia
D. Seasonal allergies
, Rationale: Patients receiving glucose-lowering therapy may develop hypoglycemia,
particularly if meals and medication timing are disrupted.
9. Which radiograph is generally most useful for detecting interproximal caries?
A. Occlusal radiograph
B. Panoramic radiograph
C. Bitewing radiograph
D. Cephalometric radiograph
Rationale: Bitewings are particularly useful for detecting proximal caries and assessing
crestal alveolar bone levels.
10. A panoramic radiograph is particularly useful for:
A. Measuring exact proximal caries depth
B. Obtaining a broad overview of the jaws and dentition
C. Determining exact working length during endodontics
D. Measuring periodontal pocket depth
Rationale: Panoramic imaging provides a broad view of the maxillofacial structures, teeth,
and jaws.
Section 2 — Operative Dentistry
11. The primary goal of minimally invasive restorative dentistry is to:
A. Remove as much tooth structure as possible
B. Preserve healthy tooth structure while controlling disease
