Dental devices and appliances for teeth correction, alignment and positional maintenance; orthodontic and dental devices and apparatuses for straightening teeth; moulded appliances for correcting bite and alignment of the bite and teeth; mouth guards; appliances to prevent bruxism; sequential aligner seating devices and appliances for aligning mouth braces; devices and appliances to aid in seating of sequential plastic orthodontic appliances; silicone or rubberised devices for applying pressure against plastic aligners to allow aligners to grip around the teeth more effectively; permanently fixed and removable dental devices and appliances; dental devices and appliances including dental braces; dental prostheses and implants; teeth protectors for dental purposes; plates for dental use; dental retainers for teeth adjustment and correction; dental instruments;