454.The mineral that is critical in the transformation of plaque into sulcus

a.Calcium

b.Phosphate

c.Potassium

d.Sodium

Ans-Phosphate

453.The lower lip gets sensory supply through the

a.Buccal branch of facial nerve

b.Buccal branch of mandibular nerve

c.Mandibular branch of facial nerve

d.Mental nerve

Ans-d.Mental nerve

452.Which cement has high solubility and disintegrates readily in oral fluids

a.Silicates

b.GIC

c.Zinc Polycarboxylate

d.Zinc phosphate cement

Ans-a.Silicates