pediatric dentistry

1. Make your
teeth Healthy
and
Make it Glitter

2. The university of Georgia
PediatricDentistryIII
Atheer Ahmed 1330129
Amalgam restorations

3. Dental amalgam
is a metal like restorative material composed of a mixture
of silver/tin/copper alloy and mercury.

4. Dental Amalgam: Alloy of mercury, silver, tin,
and copper, it may also contain palladium, zinc ,
gold to improve the handling characteristics
composition of amalgam

5. INDICATIONS OF AMALGM
Dental Amalgam:
• Restoration of posterior teeth(ClassI&II) (Moderate to large
preparations).
• Class V preparations (when esthetics is not the prime
concern).
• Core build up for badly broken down teeth in the posterior
teeth.
• Sometimes in distal surface of canines.
• For moderate caries control.

6. CONTAINDICATIONS OF AMALGM
 1-Esthetics.
2- Extensive loss of tooth structure
3- Small class I and class II cavities.

7. ADVANTAGES OF AMALGM
 1-Ease of use.
2- High compressive strength.
3-Excellent wear resistance.
4- long-term clinical results.
5- Economic
6-Can be bonded to tooth structure.
7-Self-sealing ability

8. DISADVANTAGES OF AMALGM
 1-Lack of esthetics
2- Less conservative
3- Non-insulating
4- Corrosion and galvanism
5- Lack of reinforcement of
weakened tooth structure

9. MANIPULAION OF AMALGM
 1. Selection of alloy and mercury
2. Mercury alloy ratio (Proportioning)
3. Trituration (Mechanical and hand)
4. Mulling
5. Condensation (Hand and mechanical)
6. Pre-carve burnishing
7. Carving.
8. Post-carve burnishing.
9. Polishing .

10. Cavity preparation of amalgam
 1. 90 degree .
2. The walls must be parallel or perpendicular to occlusal loads.
3. A definite gingival seat of 1.5-2 mm. in depth for compound
cavities.
4. Rounded internal line angles.
5. Sufficient bulk at the isthmus area
6. Each portion must have its own independent retention and
resistance

11. Thank you appledent
Than you so much dr. Megi Sharashenidze
your student Atheer Ahmed

12. Reference
 WWW.GOOGLE.COM
American Association of Endodontists