They don’t make noise or need power and are portable and simple to use and clean.
In this case, you’ll get a custom-fit piece that goes over your braces.
ATMJ disordercan occur as a result of a problem with the actual joint or with the muscles surrounding it.

Ivan-balvan / Getty Images
Your dentist may recommend a mouth guard to help reduce TMJ jaw pain due to teeth grinding and clenching.
Is a Night Guard Covered by an Insurance?
If your dentist determines a night guard is necessary, your dental insurance may cover yours.
However, coverage varies so check with your provider.
Wear it as often as recommended (usually every night) to adjust as quickly as possible.
Stock-fit options may take longer to adjust to.
If this happens, discontinue use and find a better fit.
These changes are reversible if you stop using the product.
Mouth guards can be made of different types of plastic and some will be harder or softer than others.
Regardless, look for BPA-free night guards.
These impressions are sent to a lab for manufacture, which may take up to two weeks.
Is It Worth Getting a Night Guard From the Dentist?
Pharmacy options include:
Cleaning Your Night Guard
Be sure to clean your night guard thoroughly.
A gentle hand wash to remove bacteria after each use is ideal.
Options include custom-fit, stock fit, boil-and-bite, and adjustable devices.
Custom-fit options last longer and are more durable.
doi:10.1186/s13643-016-0397-z
Johns Hopkins Medicine.Bruxism.
Sleep Apnea.org.Sleep Apnea Mouth Guard.
National Institute of Dental and Craniofacial Research.TMD (temporomandibular disorders).
Rochester JR.Bisphenol A and human health: a review of the literature.Reprod Toxicol.
2013 Dec;42:132-155. doi:10.1016/j.reprotox.2013.08.008
HealthyChildren.org.Mouthguards: Information for parents.
123Dentist.Custom VS Off-The-Shelf Mouthguards.