Gypsum

Question 1

use of gypsum

Answer 1

study models/casts
positive replica of dentition

Question 2

name 3 types of gypsum

Answer 2

plaster
dental stone
densite

Question 3

describe plaster

Answer 3

large, porous, irregular crystals

Question 4

describe dental stone

Answer 4

non-porous, regular crystals, requires less water

Question 5

describe densite

Answer 5

improved stone
heated with ca+mg chloride
compact, smoother particles