Operativ techniques in Dentistry: Paedodontics and ...
Transcript of Operativ techniques in Dentistry: Paedodontics and ...
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Operativ techniques in Dentistry:
Paedodontics and Orthodontics
• The purpose of orthodontics
• Grouping of the appliances
• Element of fixed appliances
• The types and parts of the removable appliances
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The aim of orthodontic treatments
To solve esthetic complains
To treat the functional problems (chewing,
speech, TMI)
Prevention (caries, parodontitis, TMJ
dysfunction)
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Sagittal anomalies - Angle classification
(based on:anteroposterior
relationship of the jaws)
Angle II. distocclusion
Angle III. mesiocclusion
Angle I: normocclusion)
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I. class
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Angle I.
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Angle II/1 Angle II/2
Angle II. - Distocclusion
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Functional jaw orthopaedics, bimaxillary, functional appliances
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Functional jaw orthopaedics,
bimaxillary, functional appliances
• Restructuring of TMJ
• Restructuring of dentoalveolar area
• New muscle balance
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AKTIVATOR
Bimaxillary appliances - Functional jaw orthopaedics
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Construction bite - set of anteroposterior and
vertical relationship
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Functional jaw orthopaedics
Set of vertical relationship
Grinding of appliance
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AKTIVATOR
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Fixed appliances for the treatment of
II. class anomalies
• Herbst-appliance
• Jusper Jumper
• Forsus spring stb.
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CLASS II MALOCCLUSION
FUNCTIONAL APPLIANCES
PERMANENT DENTITION
CLASS II DIVISION 1 HERBST APPLIANCE (FIXED)
MANDIBLE HELD IN
PROTRUSION +
OPEN VERTICALLY
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CLASS II MALOCCLUSION
FUNCTIONAL APPLIANCES
FIXED HERBST APPLIANCE
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II. Class rubbers
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Headger and fixed appliance
Extrakció nélkül normálokklúzió beállítása
If the maxilla is responsible for the
anomaly and in mild distalocclusion
Distalisation of upper molars
Prohibition of growing of upper jaw
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HEADGER
Headgear
Anchorage
Distalisation of molars
Treatment of vertical
anomalies
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Extraction of upper premolars
(compromised treatment)
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Profile !!!
Child aged 10 and 12; extractions and fixed braces
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Surgical solutions
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Műtéti előkészítés
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Angle III – progenie - mesiocclusion
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• Progenia
• 1.appliance: chin cap
• 2. Inclined plane
• (against frontal
crossbite)
Orthodontic treatment in primary dentition
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Angle III – progenie - mesiocclusion
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Angle III – progenie - mesiocclusion
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CLASS III MALOCCLUSION
FULL FIXED APPLIANCES
CLASS III ELASTICS
PROTRACTION of the maxilla
FACE MASK
(DENTAL + SKELETAL)
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Premolar extractions
III.class
Assimmetric anomaly
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Vertical anomalies
Deepbite Open bite
(sceletal or dentoalveolar ?)
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Bite raising plane
(on the upper appliance)
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Bite raising plane
PLANE
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Bimaxillary, functional appliances
Frankel- appliance
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Anti Spee (curve) wires
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Open bite • Consequences of thumb
sucking
• Open bite
• Protrusion of upper
incisors
• Retrusion of lower incisors
• - Distalocclusion
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DEGLUTITIO INFANTILIS
Tongue thrust swallow
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5- Intermaxillary rubbers, miniimplant Bite closure
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17/05/2013 41
• Hereditary sceletal open bite: surgery !!!
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Transversal problems
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Active acrylic plates
(in mixed dentition)
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Fixed expanders – Quad-helix
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Fixed expanders – Transpalatal bar
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Fixed expanders - Hyrax
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Fixed expanders - Hyrax
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Fixed expanders - Hyrax
Hibrid-hyrax
Dystractor
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SARME = Surgically assisted
rapid maxillary expansion,
dystractios osteogenesis
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fg magy ex. 1.dia
REMOVABLE APPLIANCES:
ACTIVE AND PASSIVE
PLATES
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Grouping the plates
Upper passive (retention) plate Upper typical active plate with a screw and
inclined plane
Passive Active
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The elements of the plates
Upper passiv (retention ) plates
• Acryl basic plate
• Labial bow
• Clasps
• Active elements
(Hawley) retenciós lemez
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The elements of the plates
Lower passiv (retention) plate
Acryl basic plate
Labial bow
Clasps
Active elements
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The elements of the plates
• Acryl basic plate
• Labial bow
• Clasps
• Active elements
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The elements of the plates
Adams clasp
Adams clasp
Adams clasp
Acryl basic plate
Labial bow
Clasps
Active elements
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The elements of the plates
Arrow clasp
Arrow clasp
Acryl basic plate
Labial bow
Clasps
Active elements
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The elements of the plates
Acryl basic plate
Labial bow
Clasps
Active elements-springs Free-ended or finger springs
closing opening
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The elements of the plates
Acryl basic plate
Labial bow
Clasps
Active elements •console-like springs
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Active plates The screws
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Activ plates
• Upper typical (symmetrical) activ plate
• Lower typical (symmetrical) activ plate
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Activ plates
Lower atypical active plate with
Upper atypical active plate
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Active plates
Y-plate
• Kiterjesztése
• Feladatai
elhorgonyzás
aktív fogelmozdítás
Lower Y-plate Upper Y-plate
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Bertoni screw
(instead of Y-plate)
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Activ plates
Upper frontally expanding active plate with a screw and
occlusal biteraiser plane
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Active plates
Upper atypical active plate with a screw and occlusal biteraiser
(lateral crossbite)
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The elements of the plates
Bite raising plane
thick acrylate behind the upper incisors
intrusion of lower incisrs
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The elements of the plates -
reversed incline plane
(II.class cases-to force the lower jaw
forward)
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The grouping of the
plates
Upper Y- plate
Upper passive plate
Lower typical active plate with
a screw
Upper atypical active plate
with a screw and occlusal
biteraiser
Upper typical active plate with
a screw and inclined plane
Lower atypical active plate
with a srew
Lower passive plate
Lower Y- plate
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17/05/2013 69
Oral screen
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Inclined plane
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Elements of fixed appliances
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Direkt bonding system
(multibond, multibracket appliance)
Archwire
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wings slot basis
dot
Dot is always on the distogingival wing of the bracket
Multiband
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METAL BRACKETS
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Metalbrackets
• Stainless steel brackets
• Titanbrackets
• Gold brackets
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Ceramic brackets
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Ceramic brackets
• Disadvantages:
- expensive
- fragile
- difficult to remove the brackets
- more difficult to apply ligatures
Advantages:
- esthetic
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Ligatures
Elastic ligatures (rubbers) Metal ligatures
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Thank you for your attention !