Ch 23 Mixing liners bases and cements Flashcards
1
Q
What is calcium hydroxide used for?
A
- pulp capping, base/liner in restorations with deep preparations
- protective barrier
- mixing should be completed within 10 seconds
- small equal amounts
- setting time 2-3 min
- precaution: humidity accelerates setting
2
Q
What is zinc phosphate used for?
A
- Lute inlays, crowns, bridges, orthodontic bands or base materials under restorations
- exotherimc reaction occure use glass slab
- precautions: condensation on glass slab affects mixture and setting time.
3
Q
What is Glass ionomer used for?
A
used as a base, luting agent or restorative material
4
Q
Glass ionomer as a luting agent is ?
A
- permanet cement crowns bridges ortho bands
5
Q
Glass ionomer as a base:
A
thermal insulating material in deep cavity preps
6
Q
Zinc oxide eugenol is ?
A
- one of the least irritating dental materials
- used as cement fro temp crowns base under permanent restorations
- Also used as a sedative or OBTUDENT (soothing agent) filling for sensitive teeth.
7
Q
What is temporary cement used for?
A
temp cemementing permanet restorations or i temp crowns, bridges or splints
8
Q
What are the properties for temporary cement?
A
high flow, allowing easy seating of restorations
