2010م - 1444هـ
Removable

Orthodontic

Appliances



Dedicated to

My parents SR Kuppuswamy and

K Krishnaveny

My husband G Ravindran

My children Arun Jai Kumar and

Pradeep Kumar



PREFACE

Removable appliances are fabricated in the laboratory rather than

directly in the patient’s mouth, reducing the dentist chair time and

they can be made almost invisible if fabricated from clear plastic

materials. This makes them more acceptable to especially adult

patients. These advantages for both the patient and the dentist have

ensured a continuing interest in removable appliance. With a few

limitations, removable appliances are most useful for the first 2

phases of treatment and contemporary comprehensive treatment is

dominated by fixed appliance. However, removable appliances

remain to stay as retention appliance.

Major part of malocclusion need either removable appliances or

with combination of semi-fixed removable appliance. Moreover,

the most of simple removable appliances are delivered by general

clinicians than orthodontic specialists. One, who is handling with

an understanding of how appliances function, is able to rationally

design, select and use orthodontic appliances in an efficient manner

for the patient.

In view of this, I present this book useful for the undergraduates

and clinicians in designing and construction of the removable

appliances. I have listed the various designs and modifications of

components of appliances.

K Vijayalakshmi



CONTENTS

1. Introduction ............................................................................. 1

2. Labial Wire .............................................................................. 7

3. Clasp ....................................................................................... 23

4. Springs ................................................................................... 47

5. Bite Planes ............................................................................. 65

6. Expansion Appliance ........................................................... 73

7. Clinical Adjustments ........................................................... 87

Index ........................................................................................ 93





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Removable appliances are capable of simple tipping movements and allow differential eruption of teeth using biteplanes



The use of removable appliances are considerably more limited than in the past



This paper explains the indications for use of removable appliances in contemporary orthodontics