Evaluating and comparing the short term effects of different palatal expanders on the amount of palatal expansion and buccal tipping of posterior teeth. Hypothesis: H0: There is no difference in the short term effects between the different palatal expanders. H1: There is a significant difference in the short term effects between the different palatal expanders.
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Amount of skeletal and dental expansion
Timeframe: 3 months
Amount of dental inclination
Timeframe: 3 months