MDS PREP
All of the following are radiolucent except
1. Silicate restorations
2. Conventional composites
3. Zinc oxide eugenol
4. Porcelian restorations
Radiology
Answer: 3
A patient who has geen given tumoricidal dose of radiotherapy recently reports to dental clinic with painful carious exposed mandibular first molar with periapical abscess. The treatment of choice should be
1) Extraction of the offending tooth
2) Root canal treatment if possible
3) No treatment should be given
4) Incision and drainage of abscess
Radiology
Answer: 2
The main purpose of intensifying screens in extraoral radiographic films is
1) To increase the contrast of film
2) To increase the exposure time
3) To decrease the speed of film
4) Decrease secondary radiation to patient
Radiology
Answer: 4
Zygoma fractures can be best viewed by
1) Occipitomental view
2) Lateral oblique
3) Towne"s view
4) True lateral
Radiology
Answer: 1
Loss of lamina dura and ground glass appearance indicates
1) Paget"s disease
2) Fibrous dysplasia
3) Caffey"s disease
4) Osteomalacia
Radiology
Answer: 2
The radiograph showing one of the best view of a fracture of
1) The orbital rim is the 30 degree occipitomental view
2) The orbital floor is the 10 degree occipitomental view
3) The orbital medial wall is the lateral skull view
4) The orbital roof is the lateral skull view
Radiology
Answer: 2
Radiographically, the normal horizontal plane of alveolar bone interdentally is related to
1. Cementoenamel junction of adjacent teeth
2. Epithelial attachement of adjacent teeth
3. Trabecular pattern of bone
4. All of the above