An important reason for elective extractions in orthodontics is the relief of crowding. First premolar teeth provide up to 14 mm of space for the relief crowding. Second molar teeth can provide some 18 – 22 mm of space, of which is made available to the relief of crowding in the lower labial segment where crowding most often occurs.
The advantages extracting second molar include, Less detrimental to facial profile, Facilitates the eruption of third molars, Spontaneous relief of crowding in the premolar region, Prevents crowding in a well aligned lower arch, Aids distal movement of the buccal segments with extra oral traction, Shorter treatment time, Finctional occlusion is better.
The ideal time for extracting second molars is when the third molar crown is fully formed and other claim should be extracted as soon as they erupt into the mouth.Several consideration need to be taken before extracting second molar, include radiological evaluation of third molar, should be present, have good size, shape and position.
The advantages extracting second molar include, Less detrimental to facial profile, Facilitates the eruption of third molars, Spontaneous relief of crowding in the premolar region, Prevents crowding in a well aligned lower arch, Aids distal movement of the buccal segments with extra oral traction, Shorter treatment time, Finctional occlusion is better.
The ideal time for extracting second molars is when the third molar crown is fully formed and other claim should be extracted as soon as they erupt into the mouth.Several consideration need to be taken before extracting second molar, include radiological evaluation of third molar, should be present, have good size, shape and position.
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