Occurrence of different forms of Carabelli's trait on the maxillary first permanent molar was studied in 489 Hindu children from Gujarat. The trait was absent in 35.4% of the teeth studied. Groove form was observed most commonly. Slight tubercles were found more often than pronounced tubercles, and more tubercles were found in boys than in girls; conversely, absence of this trait was observed more often in girls than boys.

Angle Class I bimaxillary proclination case with midline discrepancy and crowding in upper and lower anterior teeth was treated with upper and lower first premolars extrac• tion usingO .018" Roth prescription .To simplify the treatment combination technology of Roth , Alexander and M8 T was used .

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