Preventive Dentistry

Nightguards

Introduction

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:

Sleep Bruxism Awake Bruxism
Occurrence While asleep, usually during periods of sleep arousal While awake
Time-Intensity Relationship Pain usually worst on waking, and gradually gets better throughout the day Pain worsens during the day, and may not be present on waking
Noises Commonly heard Rarely heard
Activity 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%
Gender Distribution Equal distribution Mostly females
Heritability Some evidence inconclusive

Cited from following articles

  1. 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.
  2. 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.
  3. 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).
services - night grinding

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.

Benefits

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.

Treatment Process

  1. Assessment will be done and xrays taken to determine extent of TMJ (Jaw Joint) wear (if any).
  2. Impressions taken for fabrication of splint
  3. Issue of splint and adjustment
  4. Review. Initial review of 2 weeks, then 3 monthly up to a year.

FAQs

  1. 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.
  2. Will I swallow the device?
    The types of splint LQ Dental uses are generally too large to be swallowed.

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