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TYPES OF ORTHODONTIC APPLIANCES Dr. Fitri Octavianti 12 th June 2013.

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Presentation on theme: "TYPES OF ORTHODONTIC APPLIANCES Dr. Fitri Octavianti 12 th June 2013."— Presentation transcript:

1 TYPES OF ORTHODONTIC APPLIANCES Dr. Fitri Octavianti 12 th June 2013

2 Orthodontic Appliances Removable appliances Functional appliances Fixed appliances

3 REMOVABLE APPLIANCES Appliances can be inserted and removed from the mouth by the patient

4 Component of removable appliance Active component Retentive component Anchorage Baseplate

5 Active components

6 Active component of Removable Appliances Springs, bows Screws Elastics

7 Active component of Removable Appliances Z-Spring 0.5 mm diameter SS Function: proclination of 1 or 2 incisors

8 Active component of Removable Appliances T-Spring 0.5 mm diameter SS= incisors 0.6 mm diameter SS=premolars Function: proclination of incisors, premolars

9 Active component of Removable Appliances Finger /palatal spring 0.5 mm diameter SS= incisors 0.6 mm diameter SS= canine and premolars Function: mesial or distal movement

10 Active component of Removable Appliances Labial Bow 0.7 mm diameter SS Function: retraction of anterior teeth

11 Active component of Removable Appliances Split Labial Bow 0.7 mm diameter SS Function: Retraction of anterior teeth and close midline diastema

12 Active component of Removable Appliances Robert Retractor 0.5 mm diameter SS + sleeve Function: retraction of anterior teeth

13 Active component of Removable Appliances Buccal canine retractor 0.7 mm diameter SS Function: Palatal and distal movement of mesially angulated canines

14 Active component of Removable Appliances Coffin spring 1.25 mm diameter SS Function: transverse expansion, buccal crossbite correction

15 Active component of Removable Appliances Screw Function: Expansion and distalization Activation: 1 turn / week = 0.25mm (1/4 turn)

16 ELASTICS Rubber or Latex rings Used in: –Extra oral traction –Inter-intramaxillary traction Patient cooperation

17 Retentive components

18 Types of Clasps 1. Adams Clasps 2. Southend Clasps 5. Delta Clasps 4. Ball-ended Clasps 3. Labial bow

19 Retentive component of Removable Appliances 0.7 mm diameter SS on molars 0.6 mm SS on premolars, canine and deciduous molar Adams clasps

20 Retentive component of Removable Appliances 0.7 mm diameter SS Southend clasps Function: Useful when distal movement of canines required

21 Retentive component of Removable Appliances 0.7 mm diameter SS Labial bow Function: - Retention - important when mesial / distal movement is planned

22 Retentive component of Removable Appliances Labial bow Short labial bow Long labial bow

23 Ball- ended Clasps Undercut interproximally minimal retention 0.7 mm diameter SS

24 Delta Clasps 0.7 mm diameter SS Difficult to adjust

25 Anchorage Definition: the resistance to unwanted tooth movement equal in magnitude and opposite in direction

26 Types of intra oral Anchorage Simple Reciprocal Stationary Intermaxillary

27 Types of INTRA ORAL Anchorage Simple Anchorage Active movement of few teeth versus several anchor teeth

28 Types of intra oral Anchorage Resiprocal Anchorage When two teeth or two sets of teeth move to an equal extent in an opposite direction

29 Types of intra oral Anchorage Stationary Anchorage Bodily movement of one group of teeth against tipping of another

30 Types of intra oral Anchorage Intermaxillary Anchorage When the anchorage units situated in one jaw used to provide the force required to move teeth in the opposing jaw

31 Baseplate 1. Hold components 2. Clear acrylic : - heat cure - cold cure - autoresin 3. Comfortable 4. Good fit 5. Can be active - biteplanes

32 Baseplate Posterior biteplanesAnterior biteplanes

33 REMOVABLE OR FIXED ORTHODONTIC APPLIANCES WHICH USE FORCES GENERATED BY THE STRETCHING OF MUSCLES, FASCIA, AND /OR PERIODONTIUM TO ALTER SKELETAL AND DENTAL RELATIONSHIPS FUNCTIONAL APPLIANCES

34 TYPE OF CASE For correction of moderate to severe Class II div I and Class II div 2 Less for correction of Class III due to much lower success

35 INDICATIONS PATIENT 1.Growing patient 2.Motivated patient DENTAL 1.Classic case: uncrowded, well aligned 2.Functional appliance have non-mechanism for treating irregularities of alignment of teeth SKELETAL 1.Moderate to severe Class II skeletal base 2.Normal to low MMPA

36 CONTRA INDICATIONS Non-growing Non compliance Labial tipping of lower incisors Care needed with: High angle cases with backward mandibular growth rotation Cases with proclined lower incisors

37 TYPES OF FUNCTIONAL APPLIANCE TWIN BLOCK THE ANDRESEN ACTIVATOR THE HARVOLD ACTIVATOR HERBST APPLIANCE MEDIUM OPENING ACTIVATOR BIONATOR FRANKEL APPLIANCE Others

38 Twin block appliance The upper and lower parts fit together using posterior bite blocks with interlocking biteplanes which posture the mandible forward

39 The Andresen Activator

40 Herbst Appliance A fix-functional appliance.

41 Bionator Minimal bulk

42 The Frankle Appliance Is a functional regulator and uses shield. Complex, uncomfortable, rapid changes if worn properly. Three main variants: FR1: Class II div 1 FR2: Class II div2 FR3: Class III

43 WEAR hrs-Andresen, Harvold, Bionator Full-time- twin block, Herbst, Frankel (except for eating and sports)

44 APPLIANCE WHICH IS FIXED TO TEETH AND CANNOT BE REMOVED BY THE PATIENT FIXED APPLIANCES

45 2. Axillaries (attach arch wire to brackets and bands to move teeth such as tubes, hooks and elastics 3. Arch wires are attached to the brackets by bending the wire, it will give force and pressure that cause teeth to move in the desired direction. 1. Attachments include bands (especially on 1 st and 2 nd molars) & brackets bonded directly to the teeth (especially on anterior & premolar teeth). COMPONANTS OF FIXED APPLIANCE

46 A B C D E F G A. Bracket B. Arch wire C. Elastomeric modules D. Elastic E. Hook F. Tube G. Band

47 Full banding braces

48 Metal bracket

49 Plastic bracketsPlastic brackets with metal slot

50 Ceramic brackets

51 Self ligating bracket

52 Self ligating clear bracket

53 Lingual appliances

54

55 Clear plastic appliances

56 Fixed AppliancesRemovable appliances - Precise three dimensional control of tooth movement - Less precise control of tooth movement - Bodily tooth movement - Tipping movement - High anchorage requirement - Smaller anchorage requirement - Controlled space closure possible - Controlled space closure difficult - Simple to correct rotations - More difficult to correct rotations. - Long chairside time - Short chairside time - Not dependent on compliance to wear - Dependent on compliance to wear - Require extensive training to manage - Require less training to manage - Multiple tooth movement - Fewer tooth movement


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