Because it is a removable tool. To control the slider teeth it will probably do not fully. Required partnership with the patient. If the patient is not wearing it will not take effect.
The tool is removable removable. The move to take control of the teeth. May not be a fully It relies on a partnership with the patient. If patients do not enter It will not be effective
Because the tool is on and off. In order to control the sliding teeth, may do not fully, also requires cooperation with the patient. If the patient doesn"t wear will not effect.