ORAL AND MAXILLOFACIAL SURGERY
University Medical And Dental College
Practice Quiz Multiple Choice Questions (MCQs)
1. The direction of bevel of the chisel during bone cutting is:
– Away from bone to be sacrificed
– Towards the bone to be sacrificed
– Independent of the bone to be sacrificed
– Parallel to stress lines
✓ Away from bone to be sacrificed
2. After surgery of 3rd molar, patches of anesthesia on chin is due to damage of:
– Lingual nerve
– Inferior alveolar nerve
– Mental nerve
– Mylohyoid nerve
✓ Inferior alveolar nerve
3. The most common impacted teeth is:
– Mandibular 3rd molars
– Maxillary canine
– Maxillary central incisors
– Mandibular canine
✓ Mandibular 3rd molars
4. Most desirable incision while designing of a flap is:
– Horizontal
– Vertical
– Curved
– Elliptical
✓ Vertical
5. Longer the root the extraction is:
– More difficult
– More easy
,– Less difficult
– Less easy
✓ More difficult
6. Contributory factor to pericoronitis of an impacted mandibular 3 rd molar is:
– Trauma by opposing tooth
– Previous radiation therapy
– Systemic disease
– Infected follicular cyst
✓ Trauma by opposing tooth
7. Contributory factor to pericoronitis of an impacted mandibular 3 rd molar is:
– Streptococci and bacterial infection
– Previous radiation therapy
– Systemic disease
– Infected follicular cyst
✓ Streptococci and bacterial infection
8. Contributory factor to pericoronitis of an impacted mandibular 3 rd molar is:
– Low hygiene
– Previous radiation therapy
– Systemic disease
– Infected follicular cyst
✓ Low hygiene
9. 48 hrs after extraction of impacted mandibular 3rd molar patient returns to your
office complaining of moderate pain radiating to the ear. His temperature is 39
degree C. Swelling is minimal. The most probable diagnosis is:
– Trauma to inferior alveolar nerve during injection
– Postoperative infection of parotid space
– Postoperative infection of masticatory space
– Postextraction alveolitis
✓ Postextraction alveolitis
10. 5 days after extraction of an impacted mandibular 3rd molar, your patient
presents with hard, painful swelling after 12 hrs deviation near angle of mandible.
This is most likely due to:
– Angioneurotic oedema
– Haematoma
,– Infection
– Surgical trauma
✓ Infection
11. In extraction of mandibular 3rd molars the main reason why the posterior
incision should be placed more buccally is:
– To prevent damage to lingual nerve
– Incision should be on sound bone
– To prevent damage to retromolar artery
– All are correct
✓ All are correct
12. During extraction of a maxillary molar a root tip is displaced inside the
maxillary sinus, treatment is:
– Caldwell Luc Operation
– Hemi-maxillectomy
– Refer surgical exploration for 6 weeks till socket beals completely
– No treatment indicated
✓ Caldwell Luc Operation
13. In oro-antral communication most communication occurs during extraction of:
– Maxillary 1st premolar
– Maxillary 2nd premolar
– Maxillary 1st molar
– Maxillary 3rd molar
✓ Maxillary 1st molar
14. An oro-antral communication during extraction:
– Requires no treatment immediately
– Immediate prolapse of antral lining into mouth
– Reflux of fluids into nasal cavity while drinking
– Must be closed surgically immediately
✓ Must be closed surgically immediately
15. While extracting maxillary 1st molar root is displaced into maxillary sinus,
management is:
– Leave it
– Retrieve through socket
– Ask patient to blow nose
, – Raise a flap and create a window in canine fossa to remove the root
✓ Raise a flap and create a window in canine fossa to remove the
Root
16. Closure of large chronic oro-antral fistula is best accomplished by:
– Caldwell-Luc procedure
– Palatal flap
– Buccal flap
– Palatal flap and Buccal flap
✓ Palatal flap
17. Cyst commonly found between lateral upper incisor and canine is:
– Incisive canal cyst
– Ranula
– Globulomaxillary cyst
– Median palatal cyst
✓ Globulomaxillary cyst
18. Cyst formed ever an erupting tooth:
– Dentigerous or eruption cyst
– Primordial cyst
– OKC
– Periodontal cyst
✓ Dentigerous or eruption cyst
19. Creamy white suspension of keratin that appears like pus without an offensive
smell is found in:
– Dentigerous cyst
– Primordial cyst
– OKC
– Periapical cyst
✓ OKC
20. The bone cysts that are less than 2 cm in diameter can be treated by:
– Enucleation
– Marsupialization
– No-treatment
– None of All
✓ Enucleation
University Medical And Dental College
Practice Quiz Multiple Choice Questions (MCQs)
1. The direction of bevel of the chisel during bone cutting is:
– Away from bone to be sacrificed
– Towards the bone to be sacrificed
– Independent of the bone to be sacrificed
– Parallel to stress lines
✓ Away from bone to be sacrificed
2. After surgery of 3rd molar, patches of anesthesia on chin is due to damage of:
– Lingual nerve
– Inferior alveolar nerve
– Mental nerve
– Mylohyoid nerve
✓ Inferior alveolar nerve
3. The most common impacted teeth is:
– Mandibular 3rd molars
– Maxillary canine
– Maxillary central incisors
– Mandibular canine
✓ Mandibular 3rd molars
4. Most desirable incision while designing of a flap is:
– Horizontal
– Vertical
– Curved
– Elliptical
✓ Vertical
5. Longer the root the extraction is:
– More difficult
– More easy
,– Less difficult
– Less easy
✓ More difficult
6. Contributory factor to pericoronitis of an impacted mandibular 3 rd molar is:
– Trauma by opposing tooth
– Previous radiation therapy
– Systemic disease
– Infected follicular cyst
✓ Trauma by opposing tooth
7. Contributory factor to pericoronitis of an impacted mandibular 3 rd molar is:
– Streptococci and bacterial infection
– Previous radiation therapy
– Systemic disease
– Infected follicular cyst
✓ Streptococci and bacterial infection
8. Contributory factor to pericoronitis of an impacted mandibular 3 rd molar is:
– Low hygiene
– Previous radiation therapy
– Systemic disease
– Infected follicular cyst
✓ Low hygiene
9. 48 hrs after extraction of impacted mandibular 3rd molar patient returns to your
office complaining of moderate pain radiating to the ear. His temperature is 39
degree C. Swelling is minimal. The most probable diagnosis is:
– Trauma to inferior alveolar nerve during injection
– Postoperative infection of parotid space
– Postoperative infection of masticatory space
– Postextraction alveolitis
✓ Postextraction alveolitis
10. 5 days after extraction of an impacted mandibular 3rd molar, your patient
presents with hard, painful swelling after 12 hrs deviation near angle of mandible.
This is most likely due to:
– Angioneurotic oedema
– Haematoma
,– Infection
– Surgical trauma
✓ Infection
11. In extraction of mandibular 3rd molars the main reason why the posterior
incision should be placed more buccally is:
– To prevent damage to lingual nerve
– Incision should be on sound bone
– To prevent damage to retromolar artery
– All are correct
✓ All are correct
12. During extraction of a maxillary molar a root tip is displaced inside the
maxillary sinus, treatment is:
– Caldwell Luc Operation
– Hemi-maxillectomy
– Refer surgical exploration for 6 weeks till socket beals completely
– No treatment indicated
✓ Caldwell Luc Operation
13. In oro-antral communication most communication occurs during extraction of:
– Maxillary 1st premolar
– Maxillary 2nd premolar
– Maxillary 1st molar
– Maxillary 3rd molar
✓ Maxillary 1st molar
14. An oro-antral communication during extraction:
– Requires no treatment immediately
– Immediate prolapse of antral lining into mouth
– Reflux of fluids into nasal cavity while drinking
– Must be closed surgically immediately
✓ Must be closed surgically immediately
15. While extracting maxillary 1st molar root is displaced into maxillary sinus,
management is:
– Leave it
– Retrieve through socket
– Ask patient to blow nose
, – Raise a flap and create a window in canine fossa to remove the root
✓ Raise a flap and create a window in canine fossa to remove the
Root
16. Closure of large chronic oro-antral fistula is best accomplished by:
– Caldwell-Luc procedure
– Palatal flap
– Buccal flap
– Palatal flap and Buccal flap
✓ Palatal flap
17. Cyst commonly found between lateral upper incisor and canine is:
– Incisive canal cyst
– Ranula
– Globulomaxillary cyst
– Median palatal cyst
✓ Globulomaxillary cyst
18. Cyst formed ever an erupting tooth:
– Dentigerous or eruption cyst
– Primordial cyst
– OKC
– Periodontal cyst
✓ Dentigerous or eruption cyst
19. Creamy white suspension of keratin that appears like pus without an offensive
smell is found in:
– Dentigerous cyst
– Primordial cyst
– OKC
– Periapical cyst
✓ OKC
20. The bone cysts that are less than 2 cm in diameter can be treated by:
– Enucleation
– Marsupialization
– No-treatment
– None of All
✓ Enucleation
