Sol – gel transformation is seen in________________?

Related Mcqs:

1. In reversible hydrocolloid the property by which the transformation from sol to gel and gel to sol is a function of the_____________?

   A. Concentration of filler and plasticizer
   B. Percentage composition by weight of water
   C. Concentration of potassium sulphate
   D. Temperature

2. Syneresis seen in hydrocolloid gel is______________?

   A. Seen as water loss
   B. Water absorption
   C. Shrinkage
   D. Gelation

3. Neoplastic transformation in leucoplakia is seen most commonly in _____________?

   A. Buccal mucosa
   B. Floor of mouth
   C. Lateral border of tongue
   D. Palate

4. Transformation into osteosarcoma is seen with________________?

   A. pagets disease and polyostotic fibrous dysplasia
   B. pagets disease and osteopetrosis
   C. Cherubism and Polyostotic fibrous dysplasia
   D. Cherubism and pagets disease

5. Hysteresis in a hydrocolloid gel is______________?

   A. Moisture absorption
   B. Temperature lag between gelation and liquefaction temperature
   C. Phenomenon of conversion of gel into sol
   D. All of the above

6. Etchant preferred in gel from than in liquid form________________?

   A. Better control over placement
   B. Enhance and concentrate the action of acid
   C. Helps in visualization while placement
   D. None of the above

7. A 9 year old child’s mother comes to dental clinic with the complaint of oral ulceration, fever and shedding of skin of palms and soles: she is giving history of premature shedding of teeth and increased sweating she is also giving one month history of using any new teething gel available in market. The child is suffering form____________?

   A. Acrodynia
   B. Pemphigus vulgaris
   C. Epidermolysis Bullosa
   D. Erosive lichen planus

8. Shape memory is seen in________________?

   A. Stainless steel wire
   B. NITTINOL wire
   C. TMA wire
   D. Aluminium

9. Somatic mutation of PTEN is seen in________________?

   A. Retinoblastoma
   B. Osteosarcoma
   C. Carcinoma breast
   D. Endometrial Carcinoma

10. Leucocytopenia is seen in________________?

    A. influenza
    B. agranulocytosis
    C. liver cirrhosis
    D. All of the above