CDT 4 Flashcards
1
Q
4 functions of dental pulp?
A
- formative: produces dentine that surrounds it
- nutritive: nourishes dentine
- protective: carries nerves for sensitivity
- reparative: produces new dentine in relation to wear and insult
2
Q
pulp protection: protect from?
A
- chemical attack: from constituents in restorative materials
- thermal shock: heat from cavity prep
- galvanic effects: metal corrosion
3
Q
properties of ideal pulp protector?
A
- radiopaque
- compatible with wide range of restorative materials
- obtundant; reduce pain
4
Q
general methods of pulp protection?
A
- varnishes
- cavity bases
5
Q
name the 5 types of cavity bases used in pulp protection
A
- calcium hydroxide: dycal
- polycaboxylate cements: poly F
- zinc oxide eugenol: kalzinol
- zinc phosphate
- glass polyalkanoate: vitrebond
6
Q
bonded restorations: what is used in resin composite restorations?
A
- acid etch for enamel
- dentine bonding agent
7
Q
bonded restorations: what is used in dental amalgam?
A
- vitrebond
- acid etch
- scotchbond
- rely-x ARC (resin cement)
8
Q
techniques of cavity lining in bonded restorations: what do these methods help with?
A
- prevent ingress of fluids and bacteria
- protects pulp
9
Q
what to use: if cavity is of ideal depth?
A
no lining
10
Q
what to use: if cavity is slightly deeper?
A
- dycal
- acid etch
- dentine bonding agent (if composite) OR vitrebond (if amalgam)
11
Q
what to use: if cavity is grossly deep?
A
dycal
vitrebond
* do not extend lining to cavity periphery, only dentine on overlying pulp should be covered
