Grinding and clenching your teeth wears down teeth and damages restorations. If you have a night guard, you protect your teeth and save thousands in future repairs. Here's what you need to know about bite force and protection.

Normal vs. Excessive Bite Force

Key Takeaway: Grinding and clenching your teeth wears down teeth and damages restorations. If you have a night guard, you protect your teeth and save thousands in future repairs. Here's what you need to know about bite force and protection.
Normal chewing: 200-400 pounds of force (front teeth), 600-1,200 pounds (back teeth) Grinding/clenching: 900-1,200 pounds continuously Result: 2-4 fold greater force than normal

Normal chewing is fine. Grinding and clenching cause damage.

Signs You Grind or Clench

  • Worn-down, flat chewing surfaces
  • Chipped or broken teeth
  • Jaw pain or tension
  • Morning headaches (especially temples)
  • Sensitive teeth
  • Dental restorations that keep breaking
  • Tight jaw muscles
  • Tooth mobility (teeth feel loose)
If you have 3+ of these signs, you likely grind or clench.

What Grinding Does

To natural teeth:
  • Wears down enamel (1-3mm per year in heavy grinders vs. 0.1mm in non-grinders)
  • Exposes dentin (yellowish layer under enamel), causing sensitivity
  • Cracks enamel and dentin
  • Increases cavity risk from exposed dentin
To restorations:
  • Composite fillings wear 3-4 times faster than in non-grinders
  • Porcelain crowns chip or fracture in 15-25% of grinders
  • Bonded veneers fail more frequently
  • Bridges and implants experience stress failures

Cost Impact

Without night guard protection:
  • Composite filling replacement every 5-8 years ($200-$400 per replacement)
  • Crown replacement every 5-10 years ($800-$1,500 replacement)
  • Implant problems: implants last 10-15 years instead of 20+ years ($4,000-$8,000 to replace) You may also want to read about Hydrodynamic Theory Sensitivity Explanation.
Example: A grinder with 6 fillings might replace them 2-3 times over 20 years = $1,200-$2,400 in replacement costs With night guard ($200-$600):
  • Protects teeth from wearing
  • Extends restoration life 30-50%
  • Prevents grinding damage and associated costs
Return on investment: A $400 night guard preventing $1,000-$2,000 in replacement costs pays for itself in reduced future expenses.

Night Guards (Occlusal Splints)

Custom-Made Night Guard

Cost: $200-$600 How it works: Your dentist takes an impression. Learning more about Cavity Formation Process Complete Guide can help you understand this better. A lab fabricates a custom guard fitting your teeth perfectly. You wear it every night. Material options:
  • Soft thermoplastic: $150-$300 (most comfortable, less durable)
  • Hard acrylic: $200-$400 (more durable, takes adjustment to get comfortable)
  • Hybrid: $300-$500 (soft on inside for comfort, hard on outside for durability)
Timeline: 1-2 weeks from impression to delivery Effectiveness:
  • 60-80% reduction in grinding episodes
  • 50-70% reduction in tooth wear
  • 60-80% reduction in jaw pain
Lifespan: 3-5 years before replacement needed

Over-the-Counter Night Guard

Cost: $20-$50 How it works: Thermoplastic material you heat and mold to your teeth at home Effectiveness: 30-50% (not as good as custom-made because fit is poor) Lifespan: 6-12 months (degrades faster due to poor fit and material quality) Bottom line: Custom is worth the extra $150-$550 for comfort, durability, and effectiveness.

Complementary Treatments

Muscle relaxants (medication):
  • Cost: $10-$30 monthly
  • Reduces muscle tension and grinding 30-40%
  • Not permanent solution
Stress reduction:
  • Cost: $0-$100+ per session with counselor
  • Stress is the #1 cause of grinding
  • Meditation, yoga, counseling help
  • Reduces grinding 30-50%
Botox injections (muscle relaxant):
  • Cost: $300-$600 per treatment
  • Temporarily weakens masseter muscle
  • Results last 3-4 months
  • May reduce grinding 60-80%
  • Reserved for severe cases despite night guard
Occlusal adjustment:
  • Cost: $100-$300
  • Your dentist identifies high spots on teeth
  • Selectively grinds them to improve bite balance
  • Reduces stress on jaw joint 20-50%
  • Complements night guard use

Protecting Restorations

If you're getting costly restorations (veneers, crowns, implants), protecting them is essential:

Tell your dentist you grind: They'll recommend:
  • Stronger materials (zirconia instead of porcelain = $1,500-$3,000 vs. $800-$1,500)
  • Thicker restorations for durability
  • Reinforced designs
  • Night guard (essential!)
Cost trade-off:
  • Premium materials + night guard = $1,500-$3,000 restoration + $400 guard = $1,900-$3,400
  • Standard materials alone = $800-$1,500, but likely needs replacement in 5-10 years ($400-$1,500 again)
  • Total 20-year cost: Premium + guard usually cheaper because it lasts longer

Insurance Coverage

Night guard: Usually 50% coverage (considered surgical/specialty item)
  • Your cost: $100-$300 after insurance
Occlusal adjustment: Usually covered as preventive
  • Your cost: $0-$50
Premium restorations (for grinders): Usually covered same as standard restorations

Questions for Your Dentist

  • Do I show signs of grinding?
  • Will a night guard help my specific situation?
  • What type of guard do you recommend (soft vs. hard)?
  • How long will it last?
  • Is it covered by insurance?
  • What happens if it breaks?
  • Should I get premium restorations instead of standard?
  • What can I do to reduce stress-related grinding?

Home Care

Night guard care extends its life:

Daily cleaning: Brush guard with soft toothbrush and toothpaste or hand soap Storage: Keep in ventilated case to allow drying Temperature: Don't expose to high heat (don't leave in hot car) Replacement: Every 3-5 years

Protecting Your Results Long-Term

Once you've addressed bite force and teeth, maintaining your results requires ongoing care. Good daily habits like brushing twice a day with fluoride toothpaste, flossing regularly, and keeping up with professional cleanings make a big difference. Avoid habits that could undo your progress, such as skipping dental visits or ignoring early warning signs of problems. Staying proactive about your oral health saves you time, money, and discomfort in the long run. Your mouth is an investment worth protecting.

Conclusion

Grinding and clenching wear teeth and damage restorations at 2-4 fold faster rate than normal use. A custom night guard costs $200-$600 and reduces grinding damage by 50-70%, protecting your teeth and extending restoration life. For patients with expensive restorations (veneers, crowns, implants), a night guard is essential protection. Combined with stress reduction and possibly occlusal adjustment, night guard protection prevents thousands in future replacement costs. If you grind or clench, talk to your dentist about protecting your teeth with a night guard.

> Key Takeaway: Grinding and clenching damage teeth and restorations. A custom night guard ($200-$600) reduces damage by 50-70% and extends restoration life 30-50%, paying for itself through prevented replacement costs. If you grind or clench, ask your dentist about a night guard and other protection strategies.