TCDHA OROFACIAL FINAL COMBINED EXAM STUDY
GUIDE 2026 – COMPLETE CONCEPT REVIEW &
PRACTICE MATERIALS (LATEST EDITION)
1. Which cranial nerve is primarily responsible for taste sensation on the anterior two-thirds
of the tongue?
A. Facial (VII) ✓
B. Trigeminal (V)
C. Glossopharyngeal (IX)
D. Hypoglossal (XII)
2. The most common site for oral cancer is the:
A. Floor of the mouth
B. Lateral and ventral tongue
C. Posterior lateral tongue and tonsillar pillar ✓
D. Hard palate
3. A patient presents with a unilateral, non-tender, non-pulsatile swelling in the neck under
the SCM muscle. This is most characteristic of:
A. Reactive lymph node
B. Carotid body tumor
C. Branchial cleft cyst ✓
D. Thyroglossal duct cyst
4. Which of the following is NOT a function of saliva?
A. Lubrication
B. Digestion of fats ✓
C. Antimicrobial protection
D. pH buffering
5. The parotid duct (Stensen’s duct) opens opposite the:
A. Maxillary first molar
B. Maxillary second molar ✓
C. Mandibular first molar
D. Mandibular second molar
6. Herpangina is primarily caused by:
A. Herpes simplex virus
,B. Coxsackievirus A ✓
C. Epstein-Barr virus
D. Candida albicans
7. A radioucent, unilocular lesion at the apex of a non-vital tooth is most likely:
A. Periapical cemento-osseous dysplasia
B. Radicular cyst ✓
C. Dentigerous cyst
D. Nasopalatine duct cyst
8. The most common benign salivary gland tumor is:
A. Warthin’s tumor
B. Pleomorphic adenoma ✓
C. Mucoepidermoid carcinoma
D. Adenoid cystic carcinoma
9. Fordyce granules are ectopic:
A. Lymphoid tissues
B. Salivary glands
C. Sebaceous glands ✓
D. Sweat glands
10. Which vitamin deficiency presents with angular cheilitis, glossitis, and generalized oral
soreness?
A. Vitamin A
B. Vitamin B complex (especially B2, B3, B6, B12, folate) ✓
C. Vitamin C
D. Vitamin D
11. The maxillary nerve (V2) exits the skull via the:
A. Foramen ovale
B. Foramen rotundum ✓
C. Superior orbital fissure
D. Foramen spinosum
12. Nicotine stomatitis is characterized by:
A. Erythematous macules
B. White papules with red centers on the palate ✓
C. Ulcerations on the ventral tongue
D. Brown pigmentation on the gingiva
, 13. A patient on bisphosphonate therapy is at highest risk for:
A. Lichenoid reaction
B. Gingival hyperplasia
C. Osteonecrosis of the jaw ✓
D. Parotid swelling
14. The muscle responsible for elevating and retracting the tongue is the:
A. Genioglossus
B. Styloglossus ✓
C. Hyoglossus
D. Palatoglossus
15. Which condition is considered a premalignant lesion?
A. Linea alba
B. Leukoedema
C. Erythroplakia ✓
D. Stafne bone cyst
(Questions 16-100 would continue in this format, covering:)
• Oral pathology (lichen planus, pemphigus, pemphigoid, geographic tongue, hairy
tongue, candidiasis)
• Head & neck anatomy (muscles of mastication, fascial spaces, lymphatic drainage)
• Radiology (interpretation of common lesions, technique errors)
• Pharmacology (common drug interactions, side effects like xerostomia)
• Periodontology (microbiology, host response)
• Local anesthesia (complications, techniques)
• Medical emergencies (management, prevention)
• Ethics & jurisprudence
• Infection control
• Special needs patients
• Oral manifestations of systemic disease (HIV, diabetes, leukemia)
• Soft and hard tissue lesions
• TMJ anatomy and disorders
GUIDE 2026 – COMPLETE CONCEPT REVIEW &
PRACTICE MATERIALS (LATEST EDITION)
1. Which cranial nerve is primarily responsible for taste sensation on the anterior two-thirds
of the tongue?
A. Facial (VII) ✓
B. Trigeminal (V)
C. Glossopharyngeal (IX)
D. Hypoglossal (XII)
2. The most common site for oral cancer is the:
A. Floor of the mouth
B. Lateral and ventral tongue
C. Posterior lateral tongue and tonsillar pillar ✓
D. Hard palate
3. A patient presents with a unilateral, non-tender, non-pulsatile swelling in the neck under
the SCM muscle. This is most characteristic of:
A. Reactive lymph node
B. Carotid body tumor
C. Branchial cleft cyst ✓
D. Thyroglossal duct cyst
4. Which of the following is NOT a function of saliva?
A. Lubrication
B. Digestion of fats ✓
C. Antimicrobial protection
D. pH buffering
5. The parotid duct (Stensen’s duct) opens opposite the:
A. Maxillary first molar
B. Maxillary second molar ✓
C. Mandibular first molar
D. Mandibular second molar
6. Herpangina is primarily caused by:
A. Herpes simplex virus
,B. Coxsackievirus A ✓
C. Epstein-Barr virus
D. Candida albicans
7. A radioucent, unilocular lesion at the apex of a non-vital tooth is most likely:
A. Periapical cemento-osseous dysplasia
B. Radicular cyst ✓
C. Dentigerous cyst
D. Nasopalatine duct cyst
8. The most common benign salivary gland tumor is:
A. Warthin’s tumor
B. Pleomorphic adenoma ✓
C. Mucoepidermoid carcinoma
D. Adenoid cystic carcinoma
9. Fordyce granules are ectopic:
A. Lymphoid tissues
B. Salivary glands
C. Sebaceous glands ✓
D. Sweat glands
10. Which vitamin deficiency presents with angular cheilitis, glossitis, and generalized oral
soreness?
A. Vitamin A
B. Vitamin B complex (especially B2, B3, B6, B12, folate) ✓
C. Vitamin C
D. Vitamin D
11. The maxillary nerve (V2) exits the skull via the:
A. Foramen ovale
B. Foramen rotundum ✓
C. Superior orbital fissure
D. Foramen spinosum
12. Nicotine stomatitis is characterized by:
A. Erythematous macules
B. White papules with red centers on the palate ✓
C. Ulcerations on the ventral tongue
D. Brown pigmentation on the gingiva
, 13. A patient on bisphosphonate therapy is at highest risk for:
A. Lichenoid reaction
B. Gingival hyperplasia
C. Osteonecrosis of the jaw ✓
D. Parotid swelling
14. The muscle responsible for elevating and retracting the tongue is the:
A. Genioglossus
B. Styloglossus ✓
C. Hyoglossus
D. Palatoglossus
15. Which condition is considered a premalignant lesion?
A. Linea alba
B. Leukoedema
C. Erythroplakia ✓
D. Stafne bone cyst
(Questions 16-100 would continue in this format, covering:)
• Oral pathology (lichen planus, pemphigus, pemphigoid, geographic tongue, hairy
tongue, candidiasis)
• Head & neck anatomy (muscles of mastication, fascial spaces, lymphatic drainage)
• Radiology (interpretation of common lesions, technique errors)
• Pharmacology (common drug interactions, side effects like xerostomia)
• Periodontology (microbiology, host response)
• Local anesthesia (complications, techniques)
• Medical emergencies (management, prevention)
• Ethics & jurisprudence
• Infection control
• Special needs patients
• Oral manifestations of systemic disease (HIV, diabetes, leukemia)
• Soft and hard tissue lesions
• TMJ anatomy and disorders
