TMJ Night Guards vs. Splint Therapy - Which Approach Fits Your Symptoms?

Three categories - what each does

• Protective night guards are flat, usually full-coverage on one arch. They protect teeth and restorations from grinding wear. Best for patients who grind but have minimal joint or muscle pain.

• Anterior deprogrammer splints (e.g. NTI) are small splints that contact only the front teeth. By preventing the back teeth from making contact, they short-circuit the muscle activation pattern that triggers grinding. Best for patients with significant muscle pain and clenching.

• Stabilization splints (Michigan splints) are full-coverage splints designed to position the jaw in a specific therapeutic position. They unload the joint and let muscles rest. Best for active TMJ flare-ups or chronic disc displacement.

A dentist trained in occlusion picks the type based on your symptoms, bite, and joint findings - not all patients should be wearing the same appliance.

When a protective guard is enough

A simple protective night guard may be sufficient if:

• You grind but don't have significant joint or muscle pain.
• Your goal is preventing wear on natural teeth or restorations.
• You have stable bite and no joint clicking/locking.
• Costly cosmetic dentistry (veneers, crowns) needs protection.

A properly fitted protective guard runs $400-$700 at our office. They typically last 3-7 years.

When a splint is appropriate

A therapeutic splint is appropriate when symptoms include:

• Persistent muscle soreness, particularly in the morning.
• Chronic headaches or facial pain.
• Joint clicking or popping with discomfort.
• A history of jaw locking.
• Symptoms not improving with at-home care after 4-6 weeks.

Splints aim to alter how the jaw closes, often putting the joint in a more neutral, unloaded position. This requires custom fabrication and follow-up adjustment visits - typically a 4-8 week titration during which we fine-tune the bite contacts and watch symptom changes.

Why OTC guards usually disappoint

Drugstore boil-and-bite guards cost $25-$80 but have several issues:

• Poor fit - they shift during sleep, sometimes worse for the joint than no guard.
• No occlusion design - they create random tooth contacts.
• Material wears quickly - can break down within months.
• No follow-up adjustment.

For mild grinders without TMJ symptoms, OTC may be acceptable as a stopgap. For anyone with TMJ symptoms, OTC is often counterproductive - a few weeks of wearing a poorly-occluded guard can shift the bite enough to flare symptoms.

How we fit a custom splint

The process at our office:

1. Comprehensive evaluation - joint exam, muscle palpation, bite analysis, sometimes CBCT imaging.
2. Digital impressions with our intraoral scanner.
3. Bite registration in the position we want the splint to hold.
4. Lab fabrication - usually 1-2 weeks.
5. Delivery and refinement - we adjust contacts using articulating paper at delivery.
6. Follow-up at 1 week and 1 month to verify symptom improvement and refine.
7. Periodic re-checks at recall visits.

Many splint patients are wearing one for 6-18 months until symptoms stabilize, then transition to a simple protective night guard for long-term maintenance.