WelcomeDental Assistants

ORTHODONTICS FOR THE DENTAL ASSISTANT

DR JEAN MARC RETROUVEYJan 31 2013

• Bracketing review1

• Familiarize yourself with orthodontic wires technology2

• When to use wires effectively3

Today’s Overview

BRACKETING REVIEW

Company Logo

Learning Objectives

• Wire Technology • Wire insertion and removal• Indications for a type of wire

WIRES

What should an assistant know?

Different types of wires…….1: Shape ( main types)

- round- rectangular

Different types

• Nickel Titanium– Non Bendale– Super elastic– Very flexible– Come back to original

shape

• Stainless steel– Bendable– Fairly rigid

Nickel Titanium wires

Use of Nickel Titanium

• Initial Alignment• Correction of rotations• Torque control

Most popular sizes for NiTi

Size Contact informationO.014 round Initial alignment

0.016-0.018 round Completion of alignmentRotations

0.016x0.022 Complete alignmentTorque initiation

0.018x0.025 Completion of torque

Pre expansion

TORQUE?

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Torque control• You need a

rectangular wire in a bracket.

Torque: only with rectangular wires

Torque

Torque correcion and arch form development

6 to 7 appointments

Niti

Wire

size

0.014

0.016x0,025

Sequence ( normal for the MGH)

0.016

Stainless steel wires

• Working wire• Set up arch shape• Slide teeth on wire

( railroad track)• Coordination of arches

Most popular sizes for SS

Size Contact information0.016-0.018 round Bends to accommodate tooth anatomy

0.016x0.022 Sliding mechanicsArch formCoordination

0.018x0.025 Same but stiffer

Arch coordination with SS wires

5 years post ortho

How do we tie wires to brackets

What do we use to insert a wire into the brackets• Mathieu plier

What do we use to insert a wire into the brackets• Weingart or Howe

What do we use to cut a wire?

• Wire cutter• Distal end cutter

Conclusions

• 2 main types of wires• Come in different sizes• Different purposes• Different ways to tie wires to brackets• Weingart is used to insert and remove wires• Distal end cutter is used to cut a wire

Resources

• www.retrouvey.com

• www.dentalpedia.ca

• www.discoverorotho.com

QUESTIONS?

THANK YOU