MDS PREP
Le Fort III fracture is the same as
1. Craniofacial disjunction
2. Guerrin"s fracture
3. Pyramidal fracture
4. None of the above
Oral Surgery
Answer: 1
What are teh indications for fitting a cast restoration?
1) Casting feels (to the patient) tight on the tooth
2) All castings should be fitted
3) Casting does not seat properly on the die or the tooth
4) None of the above
Conservative Dentistry
Answer: 2
Excisional biopsy is characterized by the excision of
1. most of the lesion including some nor mal tissue
2. soft tissue lesions only
3. precancerous and cancerous lesions only
4. all of the lesion and some normal tissue
Oral Surgery
Answer: 4
Which of the following benign tumours histologically resembles a squamous cell carcinoma
1. Keratoacanthoma
2. Papilloma
3. Lipoma
4. Fibroma
Most susceptible to radiations are
1. Nucleic acids
2. Nerve cells
3. Muscle cells
4. Epithelial cells
Radiology
Answer: 1
Psychosomatic factors play an important role in the etiology of
1. acute necrotizing ulcerative gingivitis
2. acute herpetic gingivostomatitis
3. juvenile periodontitis
4. acquired immunodeficiency syndrome
Periodontics
Answer: 1
Psychological stressors can contribute significantly to the onset and
exacerbation of acute necrotizing ulcerative gingivitis, which often occurs in
individuals under stress or with compromised immunity.
Which of the following area of root fracture is least conducive to a favourable prognosis?
1. Apical third
2. Middle third
3. Cervical third
4. Prognosis is equal in all cases provided the tooth remains vital
Endodontics
Answer: 3
Resin penetrates collagen network of dentin but does not penetrate completely a small gap between mineralized matrix of dentin and collagen-resin hybrid layer is called nanoleakage is about
1) > 0.1
2) < 0.1
3) > 0.2
4) < 0.2
Dental Materials Answer: 1