MDS PREP
Loss of lamina dura and ground glass appearance indicates
1. Paget"s disease
2. Fibrous dysplasia
3. Caffey"s disease
4. Osteomalacia
Loss of lamina dura and ground glass appearance indicates fibrous dysplasia.
Asymptomatic mixed radiopaque and radiolucent lesions found at the lower incisor region of a middle aged women may be
1. Periapical cysts
2. Cementoblastoma
3. Cementoma
4. Odontogenic cysts
Radiology
Answer: 3
Asymptomatic mixed radiopaque and radiolucent lesions found at the lower incisor region of a middle-aged woman may be cementoma.
Sharpness of image on the film can be increased by
1. Large focal spot
2. Small focal spot
3. Decreased target-skin distance
4. Increased film-object distance
Radiology
Answer: 2
Sharpness of the image on the film can be increased by using a small focal spot.
Medially displaced condylar neck fracture is best visulised in
1. PA view
2. Lateral oblique view
3. Occipitomental view
4. Submentovertex
Radiology
Answer: 1
Medially displaced condylar neck fracture is best visualized in PA view.
Quality of x-ray beam is dependent on which component of dental unit
1. Autotransformer
2. Ammeter
3. Temperature of cathode filament
4. Step-down transformer
Radiology
Answer: 1
Quality of the x-ray beam is dependent on the temperature of the cathode filament.
Interproximal caries is best detected by
1. Bitewing radiography
2. Periapical
3. Occlusal
4. None of the above
Interproximal caries is best detected by bitewing radiography.
One advantage of digital radiography is
1. All the teeth can be in a single film
2. Highly economical
3. The radiographic images are obtained immediately
4. None of the above
Radiology
Answer: 3
One advantage of digital radiography is that the radiographic images are obtained immediately.
All of the following are radiolucent except
1. Osteomalacia
2. Osteopetrosis
3. Ameloblastoma
4. Central giant cell granuloma
Radiology
Answer: 2
All of the following are radiolucent except osteopetrosis.