Smooth surface caries is characterized by spread of caries in enamel and dentin as cones. This alignment in enamel and dentin is 1) Base to base 2) Apex to base 3) Apex to apex 4) None of the above
Oral PathologyAnswer: 2
A pathologic fracture of maxilla or mandible would not occur in 1. Bone cysts 2. Multiple myeloma 3. Myositis ossificans 4. Giant cell tumour of bone
Oral PathologyAnswer: 3
Which of the following is the most common lesion of the mandible? 1. Adamantinoma 2. Osteogenic sarcoma 3. Squamous cell carcinoma 4. Osteoclastoma
Oral PathologyAnswer: 1
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
False about anodontia 1) May involve both the deciduous and the permanent dentition 2) In false anodontia tooth does not undergo full development 3) May involve a single tooth 4) In total anodontia all teeth are missing
Oral PathologyAnswer: 2
Bacterial examination of the lesions necrotizing ulcerative gingivitis is likely to show
1 . Borrelia vincenti and fusiform bacilli
2. Mycobacterium bovis and acid fast bacilli
3. Actinobacillus and Treponena pallidum
4. Klebsiella species and A. naeslundi
Oral PathologyAnswer: 1
Carpet tack extensions are characteristic of 1) Psoriasis 2) Lupus erythematosus 3) Lichen planus 4) Bullous pemphigoid
Oral PathologyAnswer: 2
Intrinsic factor necessary for absorption of Vit. B12 is secreted in:
1.Duodenum
2.Small intestine
3.Large intestine
4.Stomach
