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Class I Malocclusion (MEDIAN DIASTEMA (Mgx (PA Radiograph- exclude…

- - - - canines are allowed to erupt mesially first, then moved distally.
      - class III incisor
      - Retain space for 3-6 months before definitive prosthetic replacement.
    - - removal of any deciduous teeth to allow mesial drift of buccal segment teeth
      - Masking procedures prior to orthodontic tooth movement.
      - Definitive restorations are deferred until orthodontic treatment is complete.
    - - 1.Skeletal relationship.
        2.Number and site of missing incisors.
        3.Presence of spacing or crowding.
        4.Colour and form of adjacent teeth
        5.Patient’s cooperation.
    - - better evaluation of amount and nature of ortho/restorative tx
      - better description of tx outcome
      - Using a duplicate model, teeth to be moved are cut off the model and repositioned in the desired place using wax.
    - - Cons
        
        Reduced long-term prognosis compared to teeth aligned orthodontically.
        
        Depends on the skill of the operator.
        
        Susceptible to ankylosis and external root resorption.
      - requirememts
        
        •Sufficient space.
        
        Root development of tooth to be transplanted- 2/3 to 3/4 complete.
        
        Lower PM or 3rd molars
        
        sutured into position below the occlusal plane.
        
        Careful orthodontic and surgical preparations.
      - Pros
        
        •Creates alveolar bone.
        
        Natural periodontal membrane.
        
        •Biological replacement.
        
        Can erupt in synchrony with adjacent teeth.
        
        •Higher success rates recently ( 85- 90%
        
        •Can be moved orthodontically once healing is complete
- - - - Mild
        
        Non-xtn
        
        2nd PM
      - Moderate
        
        1st OR 2nd PM
      - Severe
        
        1st PM