Extractions in orthodontic treatment.
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Extraction of teeth is required to provide space for either relief of crowding and/or to camouflage a class II or class III skeletal discrepancy. In general to preserve symmetry.
The decision to extract teeth: general factors like incisor relationship, profile considerations, appliance to be used, anchorage requirements
local factors:condition of teeth, site of crowding, degree of crowding, position of individual teeth
Extractions in buccal segment First premolars are commonly extracted to relieve moderate/severe crowding Second premolars extracted in mild/moderatr crowding, when teeth are hypo plastic, when the premolar in other quadrants are missing (to give balanced extraction) First permanent molars- never advised unless gross decay second permanent molars- for slight premolar crowding or if upper second molar is already extracted
Extractions in labial segment
