Before teeth grinding can be prevented it is important to determine the cause. Many people that show evidence of teeth grinding or bruxism are given bite guards. When bruxism has correctly diagnosed a custom fitted occlusal bite guard is an excellent option. Unfortunately, there are many times when a bite guard may not be the proper treatment.
That is why it is important to see a dentist that thoroughly understands your problem as well as possible factors that are causing the grinding. Properly restoring the teeth to the correct bite or treatment for sleep apnea are just two of the many examples that could stop grinding.