In general, there are 2 broad types of bruxism: sleep bruxism and awake bruxism. Nightguards or occlusal splints are worn to prevent sleep bruxism.
The table below show the general comparisons between the 2:
While asleep, usually during periods of sleep arousal
Pain usually worst on waking, and gradually gets better throughout the day
Pain worsens during the day, and may not be present on waking
Clenching and grinding
Usually clenching. If grinding, not usually heard
Relationship to Stress
Unclear, and little evidence of a relationship
Strong evidence for a relationship but still not conclusive
Prevalance (in general population)
9.7 – 15.9%
22.1 – 31%
Cited from following articles
Shetty S, Pitti V, Satish Babu CL, Surendra Kumar GP, Deepthi BC (September 2010).”Bruxism: a literature review“. Journal of Indian Prosthodontic Society 10 (3): 141–8.
Manfredini D, Winocur E, Guarda-Nardini L, Paesani D, Lobbezoo F (2013). “Epidemiology of bruxism in adults: a systematic review of the literature”. Journal of Orofacial Pain 27 (2): 99–110.
Macedo, Cristiane R; Machado MAC; Silva AB; Prado GF (21 January 2009). “Pharmacotherapy for sleep bruxism“. Cochrane Database of Systematic Reviews (John Wiley & Sons, Ltd).
Usual symptoms for sleep bruxism include jaw muscle pain felt in mornings and are usually accompanied with headache. Pressing the corner of lower jaw, and temple of head are common sore points.
Evidence of tooth wear is common and frequently display crack lines on teeth.
A nightguard or occlusal splint is usually required to prevent further destruction of teeth and to prevent pain from occurring.
Helps to alleviate pain from overuse of jaw muscles, leading to headaches.
Prevents further destruction to teeth and helps to protect crowns, implants etc from breaking or cracking. Long term bruxism effects on implants can lead to implant post failure or breaking of internal screws or posts.
Assessment will be done and xrays taken to determine extent of TMJ (Jaw Joint) wear (if any).
Impressions taken for fabrication of splint
Issue of splint and adjustment
Review. Initial review of 2 weeks, then 3 monthly up to a year.
Are they uncomfortable to wear?
Initially, there may be a short weaning period where you are not used to the device. This usually goes away, and you are able to sleep normally after the first few nights.
Will I swallow the device?
The types of splint LQ Dental uses are generally too large to be swallowed.
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