DAT 113: Test 2 STUDY GUIDE

negative reproduction of oral structure?

positive reproduction of oral structure?

diagnostic cast?

working cast?

dies?

chemical nature of gypsum products?

physical nature of gypsum?

manufacturing process for gypsum products?

manufacturing process of gypsum affect physical characteristics?

strength gypsum?

dimensional accuracy gypsum?

solubility gypsum?

reproduction of detail gypsum?

american dental association recognized gypsum products?

procedure for mixing gypsum to create diagnostic casts?

procedure for handling gypsum to create diagnostic casts?

common components of dental wax

properties of wax?

melting range/flow/excess residue/thermal expansion

melting range?

range of temperature at which each component of wax will start to soften/then flow

flow?

movement of wax as molecules slip over each other

excess residue?

remains after wax is removed

thermal expansion?

expand when there is increase in temperature/contact when there is decrease

three classifications of wax?

pattern/processing/impression

pattern wax?

inlay/casting/baseplate

processing wax?

boxing/utility/sticky

impression wax?

bite registration/corrective impression wax

direct waxing?

indirect waxing?

inlay wax?

used to fabricate wax patterns for metal castings for crowns/bridges/base of dentures

casting wax?

form wax pattern for metal framework of partials/full dentures

baseplate wax?

used to build contours of denture/hold denture teeth in position/spacers/bite registrations

boxing wax?

boxes in impression tray to assist in model preparation

utility wax?

used to modify shape of impression tray/cushion braces to aid in patient comfort

sticky wax?

used to attach fractured parts of dentures/holding two pieces together of oral appliance until they can be repaired

prepare model plaster for pouring?

prepare stone for pouring?

purpose of impression?

basic types of impressions?

key properties of impression materials?

alginate is irreversible hydrocolloid?

supplies needed to make alginate impression

mixing alginate?

loading tray?

seating tray?

removing set impression?

methods of disinfecting alginate impressions?

troubleshoot problems experienced with alginate impressions?

physical properties of polyvinyl siloxane (PVS)

mechanical properties of polyvinyl siloxane (PVS)?

physical properties of polyether?

mechanical properties of polyether?

advantages of using polyether impression material for crown impression?

disadvantages of using polyether impression material for crown impression?

hydrophobic?

hydrophilic?

acceptability of cord placement/gingival retraction?

use of ferric sulfate astringent can control gingival bleeding before making impression?

steps to make registration of patient’s bite in centric occlusion?

digital impression?

advantages of digital impressions?

disadvantages of digital impressions?

proper disinfect of PVS impressions?

proper disinfect of polyether impressions?

types of shade guides?

vita classic/vita 3D

hue?

color of shape (rainbow)

chroma?

saturation/vividness of color (white-bright red)

value?

relative lightness/darkness of color (black/white)

hue groups in vita classic?

orange/yellow/yellow-gray/yellow-brown

computer-aided design (CAD)?

computer-aided manufacturing (CAM)?

steps in dental computer-aided procedures?

tooth preparation/intracoral scanning/restoration design/milling/sintering/polishing/cementation

acquisition phase?

optical scanner digitally capture tooth preparation/surrounding teeth to create 3D custom image

design phase?

uses CAD software to design final restoration

milling phase?

milling machine takes design/shapes crown/veneer/inlay/onlay/bridge from single block of ceramic

optical scanners?

records topographical characteristics of teeth/oral tissue

supplies needed for double-pour technique?