This is a randomized controlled trial with a crossover design, which intends to enroll 20 adult patients aged between 20 and 55 years with confirmed or probable sleep bruxism. Participants will be randomized to receive either a conventional stabilization splint or a CAD/CAM splint. Each patient will use one type of splint for 30 days, followed by a 15-day wash-out period, after which they will switch to the other type of splint. The study aims to compare the quality, precision, and comfort of the two types of occlusal splints. Outcomes will include manufacturing time, amount of in-mouth adjustments, adaptation, occlusal contacts, and participant satisfaction.

Inclusion Criteria:

• Adult patients aged between 20 and 55 years.
• Probable or confirmed diagnosis of sleep bruxism.
• No previous treatment with occlusal splints.
• Absence of periodontal diseases and/or dental fractures.
• Patients must have a minimum of 28 teeth.

Exclusion Criteria:

• Patients with systemic diseases affecting the temporomandibular joint, such as rheumatoid arthritis, osteoarthritis, and osteoporosis.
• Chronic users of medications that may interfere with the study results, including analgesics, anti-inflammatory drugs, anxiolytics, antidepressants, and anticonvulsants.
• Patients with a history of temporomandibular joint surgery.
• Pregnant or breastfeeding women.
• Patients with severe dental misalignment or malocclusion that would affect splint fitting and evaluation.

Not planned. Sharing of anonymized data may be considered under exceptional circumstances through direct contact with investigators.

Participant Masking:

Patients will not be informed whether they are receiving the conventional stabilization splint or the CAD/CAM splint. The splints will be marked with small, inconspicuous letters (A for Group A and B for Group B) during the fabrication process to minimize the possibility of the patients identifying which type of splint they are using. Additionally, both splints will be polished similarly to ensure no noticeable differences in appearance or texture.

Researcher Masking:

The primary researcher conducting patient evaluations and data analysis will be blinded to the group assignments. This researcher will not be involved in the fabrication or fitting of the splints, thereby maintaining an objective perspective during assessments.