J. Orthod.
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British Journal of Orthodontics, Vol 19, 299-304, Copyright © 1992 by British Orthodontic Society


ARTICLES

Second molar extraction in the treatment of lower premolar crowding

ME Richardson and DJ Burden
Clinical Department of Orthodontics, School of Clinical Dentistry, Royal Victoria Hospital, Belfast.

Thirty-four children with lower premolar crowding were treated by extraction of second molars. Thirteen cases had mechanical lower arch treatment started not less than 6 months after extractions. The remainder had no treatment in the lower arch. The change in premolar crowding was measured, and the reasons why spontaneous alignment occurred in some cases and not in others were examined.





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Copyright © 1992 British Orthodontic Society.