Abstract
2 p trisomy is a syndrome due to a recombination of chromosomes whereby a small amount of chromatin is attached onto the short arm of chromosome 2. It is said that the life expectancy of a patient suffering with this syndrome depends upon problems with the respiratory and circulation systems.
We attempted orthodontic treatment for a young girl with 2 p trsisomy syndrome whose chief complaint was difficulty in tooth brushing due to molar inclination. We designed a plan of treatment in two steps. For the first step we planned to fit a bite plate for uprighting the lower first molars and to assess the adaptability of the patient and her mother to orthodontic treatment. For the socend step we applied a 3D lingual arch for uprighting the lower first molars and spreading the lower dental arch. The result was comparatively satisfactory with respect to the upper and lower dental arch and tooth brushing. Upper bilateral incisors, however, erupted in a twisted fashion and dental caries were found to appear in some teeth.
