Stopped: The study was terminated due to difficulties in the recruitment attributed to the Covid19 pandemic.
A deep bite is a bite where the upper front teeth cover almost all, if not all the lower front teeth. Currently there is no clarity which of the available treatment approaches is better when these patients still have some baby (deciduous) teeth in their mouths. This study will compare the results of four ways to manage this problem: 1. Delay treatment until all permanent teeth are erupted, 2. Temporary glue some brackets to the upper front teeth and correct the problem with orthodontic wires, 3. Temporary glue some dental material in the back of the front teeth to allow the back teeth to erupt. The amount of improvement (increased exposure of lower front teeth when biting) will be compared between the four treatment options. The reason there is a no treatment group is because a slight improvement of the deep bite happens naturally in some cases. In this case delay of treatment is not a major concern as this bite type can be managed later during permanent dentition.
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Elimination of the moderate to severe anterior deep bite
Timeframe: The success rate was assessed by comparing study models from before (T0) and after treatment (T1)(no more than 12 months).
Measurement of overjet and overbite
Timeframe: Before (T0) and after treatment (T1) (no more than 12 months).
Arch length to incised edge
Timeframe: Before (T0) and after treatment (T1) (no more than 12 months).
Maxillary dental arch length total
Timeframe: Before (T0) and after treatment (T1) (no more than 12 months).
Transverse maxillary molar distance
Timeframe: Before (T0) and after treatment (T1) (no more than 12 months).
Cephalometric analysis
Timeframe: Before (T0) and after treatment (T1) (no more than 12 months).