CAT	Clear aligner technique
NiTi	Nickel-Titanium superelastic alloy
CAM	Computer-aided manufacturing
SMP	Shape memory polymers
PET	Polyethene terephthalate
PETG	Polyethene terephthalate glycol-modified
TPU	Generic thermoplastic polyurethane
hTPU	High hardness thermoplastic polyurethane
mTPU	Middle hardness thermoplastic polyurethane
sTPU	Soft hardness thermoplastic polyurethane
PCTG	Poly cyclohexylenedimethylene terephthalate glycol-modified Copolyester
PVC	Polyvinyl chloride
EVA	Ethylene vinyl acetate resin
PP	Polypropylene
PC	Polycarbonate
Tg	Glass transition
Tm	Melting point
BPA	Bisphenol A
BPF	Bisphenol F
BPS	Bisphenol S
DMTA	Dynamic mechanical thermal analysis
DSC	Differential scanning calorimetry
3PB	Three-point bending
OMSS	Orthodontic measurement and simulation system
LDH	Lactate dehydrogenase
DIC	Digital image correlation
LCA	Life-cycle assessment
E	Elastic modulus