Cytotoxicity evaluation of different clear aligner materials using MTT analysis

Figures & Tables

Clear aligner	n	Mean±SD (Min-Max)	Kruskal Wallis Test Statistic	** p^a	** p^b	*** p^c	** p^d	** p^e
Duran	6	92.625±26.345(53.15–124.59)	p=0.001*
Essix C+	6	94.947±8.543(81.29–103.82)		1.000
Smart Track	6	87.662±5.535(78.01–93.03)		1.000	1.000
Zendura	6	67.31±16.209(38.13–81.01)		0.397	0.456	1.000
Taglus	6	113.183±7.459(104.51–123.77)		0.937	0.827	0.085	0.001
Zendura Flx	6	106.922±12.765(83.75–120.35)		1.000	1.000	0.598	0.011	1.000

Brand	Material content	Supplier
Duran	Polyethylene terephalate glycol (PETG)	Scheu-Dental GmbH
Essix C+	Polypropylene/ethylene copolymer (>95%), stabilizers (<5%)	Raintree Essix, Inc.
Smart Track	Polyurethane from methylene diphenyl diisocyanate and 1,6-hexanedial, Additives	Align Technology, Inc.
Zendura	Polyurethane resin	Bay Materials LLC
Taglus	Polyethylene terephthalate glycol (PETG)	Laxmi Dental Export
Zendura Flx	Copolyester and Polyurethane resin	Bay Materials LLC