Streptococcus mutans is considered to be a principal aetiological agent of caries because it produces organic acids and it 1) Forms a gelatinous matrix 2) Metabolizes substrate from saliva 3) Derives energy from enamel constituents 4) Lives symbiotically with Lactobacillus
Oral PathologyAnswer: 1
The patient may be mentally retarded, if suffering from
1. generalized cortical hyperostosis
2. craniofacial dystosis
3. Marfan's syndrome
4. Achondroplasia
Oral PathologyAnswer: 2
Miller"s liquefaction foci are present in 1. Lichen planus 2. Dental caries 3. Erythroplakia 4. Bullous pemphigoid
Oral PathologyAnswer: 2
A patient on warfarin sodium following myocardial infarction reports for an oral surgical procedure. Which one of the following laboratory tests should be preferred to ascertain the fitness 1) Prothrombin time 2) Tourniquet time 3) Clotting time 4) Bleeding time
Oral PathologyAnswer: 1
Which of the following is the most likely to turn malignant? 1. Intradermal nevus 2. Junctional nevus 3. Lichen planus 4. Papilloma
Oral PathologyAnswer: 2
Which of the following nevus is a true mesodermal structure and common intraoral nevi 1. Blue nevus 2. Compound nevus 3. Intradermal nevus 4. Junctional nevus
Oral PathologyAnswer: 1
The aetiology of Mikulicz"s disease is 1) Genetic 2) Autoimmune 3) Viral 4) Bacterial
Oral PathologyAnswer: 2
Leukoplakia with the worst prognosis is seen on 1) Dorsum of tongue 2) Floor of mouth 3) Buccal mucosa 4) Palate
