The overall objective of the clinical investigation is to evaluate whether the use of the AesyBite Active reduces the bruxism activity.

Inclusion Criteria:

• Age 18 to 70 years, in good general health.

• Presence of at least one of the following:

  • sleeping partner's report of tooth grinding sounds during sleep for at least three nights per week within the last 6 months,
  • hypertrophy of the masseter muscle upon digital palpation.

• Presence of at least one of the following:

  • signs of tooth attrition or shiny spots on dental restorations,
  • self-report of masticatory muscle fatigue or pain at awakening.

• Previous prescription of a night splint for bruxism.

• Able to understand and follow the protocol and complete the self-administered paper questionnaires.

• Able to provide written informed consent to study participation and storage and processing of study data

Exclusion Criteria:

• Allergic to Ethylene-Vinyl Acetate (EVA) copolymer.
• With more than two missing molars (excluding third molars).
• Ongoing orthodontic treatment (e.g. teeth alignment).
• With major neurological or psychiatric disorders including substance dependence.
• Using a removable dental prosthesis.
• Using a medication with known effects on sleep or motor behavior.
• Suffering from periodontal disease.
• With occlusal or jaw abnormalities that prevent the wearing of a normal dental splint.
• Participants with pacemakers.