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Restorative Materials,

Dental Dam, Matrix and Wedge

2

Amalgam Restorative Materials

• Composition

• Types of dental amalgam

• Mercury

• Forms of dental alloy

• Properties

3

Amalgam Restorative Materials

• Manipulation– Trituration– Amalgamation– Amalgamators or triturators

• Amalgam bonding

• Complete amalgam procedure

4

Composite Restorative Materials

• Composition

• Properties of composites

• Manipulation considerations

• Modifications

5

Glass Ionomer Restorations

• Used as an aesthetic restoration

• Not suitable for areas that require strength or where aesthetics are critical

• Resin ionomers

6

Compomers

• Mostly used on Class III and V on permanent teeth and all types of restorations on primary teeth

7

Dental Dam

• Isolation of teeth for restoration procedures

• Allow greater visibility and accessibility

• Control moisture

• Protective barrier

8

Dental Dam Materials and Equipment

• Dental dam material

• Dental dam napkin

• Dental floss and tape

9

Dental Dam Materials and Equipment

• Dental dam clamps

• Forceps

• Frame

• Punching guide

• Punch

10

Preparation Before Placement of the Dental Dam

• Educating the patient

• Determining the area to be isolated

• Dividing the dental dam

• Punching the dental dam– Common errors when punching the dental

dam

11

Placement and Removal Procedures for the Dental Dam• Many techniques for placement of the

dental dam

• Through practice, the operator will find what works best

12

Placement and Removal Procedures for the Dental Dam• Dental assistant will either assist dentist

with placement or place it themselves– Depending on whether it is legal in the

state in which the assistant practices

13

Dental Dam for the Child Patient

• Basic technique is the same for both child and adult

• Parts of the dental dam and procedure should be explained using terminology appropriate to maturity of the child

14

Dental Dam for the Child Patient

• Child should be taught how to swallow and breathe with the dental dam in place

15

Alternatives for Full Dental Dam Placement

• Quickdam is an alternative to the full dental dam placement

• It is an oval piece of dental dam that has a border of flexible plastic

16

Wedges

• Hold the matrix band securely– Prevents excess filling material from

escaping between the tooth and band

• Come in different sizes – Natural, clear, or colored

• Only used when preparation includes a proximal surface(s)

17

Tofflemire Matrix• Most common matrix used for amalgam

restorations

Diagonal slot

Guide channels

Frame Inner knob

Vise Spindle Outer knob

18

Plastic Strip Matrix

• Thin, transparent strip matrix– Used with composite, glass ionomer, or

compomer restorative materials on anterior teeth

19

Sectional Matrix Systems

• Used most often on Class II restorations to restore anatomical contacts