不知道谁了解mouthguard这块应用？
看了维基的介绍，EVA好像用得很多：A thermo-plastic material manufactured in a
pre-formed shape in various sizes that can be adapted to fit more closely
to an individual's teeth and gums by heating and molding such as boiling
then placing in the mouth. Some are now available that incorporate special
fins within the fitting zones which increase retention and give an improved
fit over tradition boil and bite mouth types. Guards are usually made of
Ethylene-vinyl acetate[1][2]. This is the most popular mouthguard used by
amateur and semi-professional sportsmen, providing adequate protection but
relatively low comfort in comparison to the custom-made guard.[18]
但是，EVA是酯，在唾液中容易降解。如果我有个材料不会降解，是不是可以更好被市
场接受？那么这个产业链中谁是主导者，可以联系讨论？
请指教讨论。
