Table 1.

The thickness of the tested mouthguards at the incisor impression, before and after modification

Manufacturer	Material	Thickness
		Before	After
Dita	One layer of injected EVA	3.5 mm	2.5 mm
Elysee Dentala	Two layers of pressed EVA		2.5 mm
Shock Doctor Gel Max	Three layers: the first layer comprised EVA with copolymer polyurethane (PU), the second layer EVA, and the third layer is an impact shield on the outside from vulcanized rubber	5.5 mm	4.0 mm
SISU NextGen Aero Guard	One layer (perforated sheet) comprised EVA with copolymer polycaprolactone (PCL)	1.6 mm	1.3 mm
Stag	One layer of injected EVA	3.5 mm	3.0 mm

^aThis is a custom‐made mouthguard, which is not modified. The thickness at the incisor impression is referred to as “after”.