Introduction to dental cements dental material

1. DENTAL CEMENTS
Dental cements, lecture 1

2. Generally cement is a substance used to glue two solid
bodies
(e.g. Contracting Cement is used to glue building bricks to
each other)
Introduction to Dental cements
In Dentistry,,,, There are many
different applications of cements

3. APPLICATIONS OF DENTAL CEMENTS
1. Cementation (Luting) of indirect restorations such
as crowns, bridges, inlays and onlays
e.g. ( Zinc phosphate, polycarboxylate, glass ionomer, and
resin cements)
2. Cavity Bases under metallic restorations to protect the
pulp against thermal shock
e.g. (Zinc phosphate, polycarboxylate, glass ionomer,
modified ZOE)
3. Cavity Liners protecting the pulp against chemicals
leaching from restorative materials or even cement
bases
e.g. (ZOE,and Calcium hydroxide)
Introduction to Dental cements

4. 4. Pulp capping material isolating and protecting the pulp from
the surrounding media
e.g. (Calcium hydroxide)
5. Interim filling material restoring tooth cavities temporally
e.g. (ZOE,modified ZOE, and zinc phosphate)
6. Esthetic restoratives restoring tooth cavities with material
having the same color shade especially in anterior region
e.g. (Silicate, Glass ionomer, Resin modified glass ionomer
cements)
7. Cementing root canal posts and core build-up
e.g. (Zic phosphate, Glass ionomer,and Resin cements)
Introduction to Dental cements
APPLICATIONS OF DENTAL CEMENTS (Cont.d)

5. 8. Root Canal Sealer, Seals spaces between root
canal filling material and canal wall or even between the
filling cones themselves.
e.g. (ZOE, and Glass Ionomer cements)
9. Cementation of orthodontic bands and bracket
bonding
e.g. (Zinc phosphate, polycarboxylate and resin cements)
10. Surgical and periodontal packs
e.g. (ZOE)
APPLICATIONS OF DENTAL CEMENTS (Cont.d)
Introduction to Dental cements

6. CLASSIFICATION OF DENTAL CEMENTS
ACCORDING TO THE SETTING MECHANISM
I. Cements set via acid- base reaction
e.g. ZOE, zinc phosphate, polycarboxylate,…
II. Cements set via polymerization reaction
e.g. Resin-based cements
III. Cements set via both mechanisms (Dual-cured)
e.g. Resin-modified G.I.
Introduction to Dental cements

7. ACID-BASE REACTION CEMENTS
Zinc Oxide
Alumino silicate glass
Phosphoric acid Polyacrylic acid
Eugenol
ZOE & Ca(oH)2
Zinc
polycarboxylate
Glass ionomerSilicate
Zinc phosphate