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compare the chairside time and the accuracy of transferring attachments between single and double sheets vacuum tray techniques during indirect bonding of orthodontic attachments using superimposition on computer software
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| single transfer tray | Active Comparator |
| |
| double transfer trays | Experimental |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| double transfer trays | Device | double trays one soft and one hard |
| |
| Measure | Description | Time Frame |
|---|---|---|
| Chairside time of brackets bonding | using Stop watch | an average of 30 minutes |
| Measure | Description | Time Frame |
|---|---|---|
| Accuracy of orthodontic attachments transfer | linear (mm) scale using geomagic software | one day after bonding |
| Accuracy of orthodontic attachments transfer | angular (degrees) scale using geomagic software |
| Measure | Description | Time Frame |
|---|---|---|
| immediate Bond failure | number of debonded attachments using hand instrument pressure | immediately after bonding |
Inclusion Criteria:
Exclusion Criteria:
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| single transfer tray |
| Device |
single soft tray |
|
| one day after bonding |