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Removable Orthodontic Appliances
K Vijayalakshmi
1:
Introduction
DEFINITION
Mechanical Appliances
Attributes
Biologic
Mechanical
Aesthetic
Hygienic
CLASSIFICATION OF APPLIANCE
Advantages and Disadvantages of Removable Appliances
Advantages
Disadvantages
Development of Removable Appliance
Components of Removable Appliance
2:
Labial Wire
TYPES
Short Labial Bow
Long Labial Bow
Split Labial Bow
Mills' Retractor
Robert's Retractor
Reverse Loop Labial Bow
High Labial Bow
Fitted Labial Bow
Soldered Labial Bow
Begg's Retainer
Labial Bow for ‘J’ Hook Attachment
Labial Bow with Small Hook
Asymmetrical Labial Bow
LABIAL BOW VARIATIONS
3:
Clasp
DEFINITION
SIGNIFICANCE OF USING A CLASP
REQUISITES OF A CLASP
MATERIALS USED
Patient Instructions
SELECTION AND DESIGN OF CLASP
CLASSIFICATION OF CLASPS
DESCRIPTION OF INDIVIDUAL CLASPS WITH THEIR MODIFICATIONS AND APPLICATIONS
Evolution of Clasp
Circumferential Clasp (C clasp or ¾ clasp)
Jackson's Clasp
Crozat's Clasp
Arrowhead Clasp (AM Schwarz -1935)
Use
Disadvantage
Ball End Clasp
Advantage
Disadvantages
The Arrow Pin Clasp
Duyzing's Clasp
Lingual Extention Clasp
Advantage
Disadvantages
Triangular Clasp (Zimmer-1949)
Zimmer's- Triangular Clasp (Fig. 3.9B)
Eyelet Clasp
Groth Clasp
Southend Clasp
Uses
Adams' Clasp
Essential Features of Adams' Clasp
Precautions
Clinical Adjustments
Advantages of Adams' Clasp
Modifications of Adams' Clasp
Single Arrowhead Clasp
Incisor Clasp
Universal Clasp
Delta Clasp
AUXILIARY METHODS OF INCREASING RETENTION
4:
Springs
PHYSICAL PROPERTIES OF WIRE
CLASSIFICATION OF SPRINGS
Auxiliary Spring
Coffin Spring
Protrusion Springs
Open Protrusion Spring
Closed Protrusion Spring
Proximal Springs
Lingual Springs
Paddle Spring
Springs on the Labial Wire
Torque Spring
BOXING
Fabrication of Boxing
5:
Bite Planes
CLINICAL MANAGEMENT
USES OF ANTERIOR BITE PLANE
PROBLEMS WITH ANTERIOR BITE PLANE
FIXED ANTERIOR BITE PLANES
ANTERIOR INCLINED BITE PLANE
POSTERIOR BITE PLANES
FIXED POSTERIOR BITE PLANE
Base Plates
6:
Expansion Appliance
INDICATIONS
WAYS FOR EXPANSION
TYPES OF EXPANSION SCREW
Slow Type
Rapid Type
Anterior Expansion of Maxillary Incisors
Transverse Expansion
SIMULTANEOUS ANTERIOR AND POSTERIOR EXPANSION
The Sagittal Appliance
Sagittal I
Sagittal II
Sagittal III
To Conclude
Clinical Tips
W-arch Expander
Single Tooth Posterior Crossbite Correction by Semifixed or Removable Appliance
Memory Transverse Expansion Screw
7:
Clinical Adjustments
PRESSURE ADJUSTMENT WITH REMOVABLE ORTHODONTIC APPLIANCES
THE MODE OF FORCE APPLICATION
Interrupted Force
Intermittent Force
Continuous Force
INDEX
TOC
Index
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