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class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
class1 malocclusion ppt
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class1 malocclusion ppt

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  • The diagnosis and treatment of this presentation make it too simple:
    how about the balance of the face ??? Steep mandibular angular--- still Class I ?????
    If all it concerns is about alleviating the crowding , then the clinician of this treatment is ' a teeth alignment specialist '
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  • gentle.thanks
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  • 1. RUBAB HAIDER D-606
  • 2.
    • >>Angle’s class I malocclusion is also known as neutrocclusion where the molars are in normal class I relationship ( Mesiobuccal cusp of the upper first permanent molar lies in the mid buccal groove of the lower first permanent molar)
    • leaving the other teeth in malocclusion.
    • >>Harmonious relationship of the underlying skeletal structures and malocclusion component is restricted to the dental malrelations only..
  • 3.  
  • 4.
    • 1) Class I malocclusion.
    • 2) Bimaxillary protrusion
  • 5.  
  • 6.
    • SKELETAL FEATURES:
    • Prognathic jaws
    • Increased ANB angle
    • Convex profile
    • Everted lips
    • Smaller upper and posterior facial height with divergent facial planes
  • 7.  
  • 8.
    • Bimaxillary proclination
    • Increased incisal angle
    • Spacing between teeth
    • Normal molar and canine relationship
    • Steep mandibular plane angles
  • 9.  
  • 10.  
  • 11.
    • SKELETAL FEATURES:
    • Harmonious face
    • Straight to convex profile
    • Nothing really abnormal
  • 12.  
  • 13.
    • Class I molar relationship
    • Individual tooth malocclusion with varying degree of severity
    • Malocclusion may be in vertical and transverse planes.
    • Lip competence is dependant on degree of anterior proclination
  • 14.  
  • 15.  
  • 16.  
  • 17.
      • Spacing
      • Crowding
      • Crossbite
      • Openbite (anterior)
      • Rotations
      • Deepbite (anterior)
      • Bimaxillary protrusion
  • 18.
    • History
    • Clinical examination
    • Study models
    • Radiography
    • OPG
    • Periapical
    • Lateral ceph
  • 19.  
  • 20.
    • Generalized:
      • Eliminate cause
    • Microdontia
      • Eliminate spaces between anteriors,leaving a space between canine and 1 st premolar
      • Prosthesis
    • Spacing with proclination:
      • Labial bow
      • Elastics with fixed or removable appliance
  • 21.
    • Labial bow with finger spring
  • 22.
      • Eliminate cause i.e. high labial frenum attachment
      • Removable appliances :
        • Finger spring
        • Finger spring with labial bow
        • Split labial bow
      • Fixed appliances:
        • Pin and tube appliance .
  • 23.  
  • 24.
    • Analyze space discrepancy using model analysis.
    • Treatment is planned on the amount of space required.
    • Mild Crowding:
    • If the space discrepancy is up to 4mm:
      • usually resolves without extraction.
      • Proximal stripping
      • Alignment of teeth by labial bow, finger spring.
  • 25.
    • Moderate crowding:
    • If space discrepancy is in the range of 5-9mm, treated without extractions by :
      • Arch expansion
      • Molar anchorage or
      • Enamel reduction.
  • 26.
    • Severe crowding :
    • Patients with space discrepancy of 10 mm or more:
      • Extract all 1 st premolars
      • Retract canine by canine retractor
      • Align anteriors by labial bow
      • Retention by Hawley’s retainer.
  • 27.  
  • 28.  
  • 29.
    • ANTERIOR
        • Z-spring with posterior bite plane
        • Expansion screw with posterior bite plane
  • 30.
    • POSTERIOR
      • Single tooth:
        • Cross-elastics
      • Unilateral:
        • Unilateral expansion screw
        • Functional appliance
      • Bilateral:
      • Maxillary expansion is done to relieve cross bite by:
        • Coffin spring
  • 31.
      • Quad Helix Appliance
  • 32.
    • Hyrax screw for rapid maxillary expansion
  • 33.  
  • 34.
    • ANTERIOR:
      • Eliminate habit
        • Thumb sucking
        • Tongue thrust
        • Mouth breathing
      • Skeletal openbite
      • during mixed dentition:
        • Frankel IV or chin cap with high pull headgear
      • In permanent dentition,before puberty
        • Fixed appliance with box elastics
      • In permanent dentition after puberty:
        • Surgery
      • If due to supra-erupted posteriors:
        • Posterior segmental osteotomy
  • 35.  
  • 36.
    • Single Tooth:
      • Removable Appliance:
        • Couple force by flapper spring/ double cantilever spring and labial bow
      • Semi-fixed Appliance:
        • Whip spring
        • High labial bow with soldered ‘T’ spring
    • Multiple rotations:
      • Treated by fixed appliance
      • Overcorrection is done and retention is given for atleast 1 year….
  • 37.
    • High Labial bow
    • T spring
  • 38.  
  • 39.
    • Growing age:
      • With less low facial height :
        • Anterior bite planes
  • 40.
      • Anterior bite planes are contraindicated if patient already has more lower facial height.
        • Intrude anteriors by:
        • Fixed appliance
        • J hooks of vertical pull headgear
  • 41.  
  • 42.
    • Extract all 1 st premolars, or 1 st molars.
    • Treatment depends on angulation of canine:
      • Distally inclined canine :
        • Retract canine and align incisors using retainers
      • Mesially inclined canine:
        • Fixed appliance
  • 43.
    • Use of anterior subapical osteotomy in conjunction with extraction of a tooth in each quadrant, usually the 1 st premolars .
    • Bone apical to upper 6 anteriors is cut, and the whole segment is pushed back, in conjunction with surgical splints and rigid osteosynthesis (plating).
    • Box and vertical elastics and retainers are used postsurgically to prevent relapse of teeth.
  • 44.  
  • 45. YOU !!
  • 46.
    • Lecture notes
    • Contemporary orthodontics by William R Proffit
    • www.wikipedia.org
    • www.Library.thinkquest.org

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