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There are three types of mouthguards/ nightguards:
1. Stock nightguards- the cheapest of the three. You can normally find these at sporting stores or drug stores. These guards have set sizes which means they may not fit very well.
2. Boil and Bite nightguards- these are guards that you make yourselves. As the name describes it, you boil a block of thermoplastic material in hot water and bite into it, creating a fitted appliance for your teeth. There are risks to these; as biting the wrong way could create tension and soreness to the jaw, which with prolong use, can cause jaw misalignment.
3. Custom nightguards- the most expensive but the most customized. These can vary from $100-$800. They are generally done at the dentist where impressions of your teeth are taken, and a professional mouthguard is fabricated. These guards are very accurate and carefully made.
So onto the main question Is there BPA in mouthguards?
Yes and No. Depending on the material of the mouthguard, it may or may not contain Bisphenol A (BPA). BPA is said to interrupt hormone levels which lead to health problems. Retailers have been removing products with BPA since 2008 but some mouthguards still do contain BPA. You can check by asking your dentist or checking the classification of the plastic used. Certain types of Type 3 and Type 7 plastics are made from BPA.
Normally, BPA is most dangerous (most exposed) when making the mouthguard (boiled in very hot water or melted at the dental office when being fabricated).