44 - oral cavity surgery mcqs - part 1

1q: epulis arises from ?

 

1. enamel
2. root of teeth
3. gingiva
4. pulp

 

answer:  c. gingiva or gum .

 

2q: the commonest site of oral cancer among Indian population is ?

 

1. tongue
2. floor of the mouth
3. alveobuccal complex
4. lip

 

answer: c . alveobuccal complex . the most common type of oral cancer in India is buccal mucosa ( 38 % ) followed by anterior tongue secondly ( 16 %) and thirdly lower alveolus ( 15.7 % ) . so when the percentages of buccal mucosa and lower alveolus are combined it is alveobuccal complex ( 53.7 % ) that is the most common type of oral cancer in India .

                                                    worldwide the most common type of oral cancer is the carcinoma of the lip and secondly carcinoma of the tongue .

 

3q: a patient has small, oval  multiple ulcers in oral cavity with red erythematous margins . the diagnosis is ?

 

1. carcinoma
2. apthous ulcer
3. tubercular ulcer
4. syphilitic ulcer

 

answer: b . apthous ulcers .

 

4q: the premalignant condition with the highest probability of progression to malignancy ?

 

1. dysplasia
2. hyperplasia
3. leukoplakia
4. erythroplakia

 

answer: d . erythroplakia . the malignant potential of erythroplakia is 17 times higher than leukoplakia .

 

5q: in carcinoma cheek what is the best drug for single drug chemotherapy ?

 

1. vincristine
2. cyclophosphamide
3. cisplatin
4. daunorubicin

 

answer: c . cisplatin . CISPLATIN is the best drug for single drug chemotherapy in the treatment of carcinoma cheek .

 

6q: painless ulcer of the tongue is due to ?

 

1. dyspepsia
2. syphilis
3. tuberculosis
4. none

 

answer: b . syphilis .

 

7q: most common type of oral cancer ?

 

1. lip
2. cheek
3. tongue
4. palate

 

answer: a . lip . when it is not mentioned in the question about a specific country , assume that it is the most common occurrence in the world and so the answer here is the most common type of oral cancer in the world is lip .

 

8q: commonest cancer of the oral cavity ?

 

1. adenocarcinoma
2. melanoma
3. sarcoma
4. squamous cell carcinoma

 

answer: d . squamous cell carcinoma . most of the cancers of the head and neck are of the squamous cell type .

 

9q: what is ranula ?

 

1. retention cyst of sublingual gland
2. retention cyst of submandibular gland
3. extravasation cyst of sublingual gland
4. extravasation cyst of submandibular gland

 

answer: a . retention cyst of sublingual gland .

 

10q: the most frequent tooth to be impacted is ?

 

1. lower third molar
2. lower canine
3. upper third molar
4. upper premolar

 

answer: a . lower third molar . the second most common type of tooth to be impacted is upper third molar and thirdly the maxillary canine .