- More Than Teeth
- Posts
- When Teeth Keep Breaking: The Airway Story We Can’t Afford to Miss
When Teeth Keep Breaking: The Airway Story We Can’t Afford to Miss
Where Dentistry Meets Whole-Body Health Michael Bennett, DDS, PhD & Cathy Bennett, MS, NBCHWC
This is More Than Teeth. The newsletter that helps dental sleep professionals get 1% better every week.

Good Morning.
Good Morning,
A patient in his late 60s came into our office recently with a frustration many of us have heard before:
“My front teeth keep breaking… and I’m tired of fixing them one by one.”
At first glance, this might look like a restorative problem.
It wasn’t.
5-minute read👇
🔑 Key Takeaways (60 seconds)
• Repeated dental breakdown is often not a materials problem; it’s a movement problem
• Nocturnal parafunction is frequently airway-driven, not stress-driven
• If you don’t address the airway, you’re restoring into instability
• Stable joints and stable breathing must precede definitive occlusion
• Dentistry is uniquely positioned to intercept systemic disease early
The Clinical Story
The Pattern Behind the Problem
This patient had a long restorative history:
Every tooth has been crowned for over ~45 years
Multiple re-treatments
Recent fracture of maxillary centrals within weeks
Significant wear across PFM restorations (see 3D scans)
But the real story was not in the teeth.
It was in the airway.
The Airway & Systemic Context
His medical and airway history included:
Prior stroke
Diagnosed with severe obstructive sleep apnea
Intermittent CPAP intolerance
History of UPPP with residual soft tissue bulk
CBCT findings revealed:
Compromised nasal valves
Inferior turbinate hypertrophy
Septal deviation (possible turbinate contact)
Maxillary hypoplasia
Mandibular retronathia
Deep overbite
This is a classic presentation of structural airway compromise paired with chronic sympathetic activation.
And the teeth?
They were collateral damage.
Why Teeth Break in These Cases
What we’re seeing is not a random fracture.
It’s the downstream effect of:
Sleep fragmentation
Micro-arousals
Protective neuromuscular reflexes (bruxism)
As highlighted in the literature, sleep bruxism is frequently associated with sleep-disordered breathing and may represent a compensatory airway response rather than a primary disorder.
In other words:
The body is trying to survive—not destroy teeth.
Phase-Based Treatment Approach
Phase 1: Stabilize Airway + Neuromuscular System
3D printed PMA for airway support
Lower TMD orthotic
Trial bite development using phonetic positioning
Outcome:
Shimbashi increased from ~8 mm → ~16 mm
Improved mandibular posture
Reduced strain on the system
This aligns with principles that bite registration and mandibular positioning directly influence airway patency and treatment success.
Phase 2: Restore Into Stability
Bite registration transferred at tested position
Virtual wax-up for full-arch rehabilitation
Interim EMA appliance during temporization
Key principle:
We don’t guess the bite—we test it physiologically first.
Phase 3: Long-Term Airway Control
EMA sleep appliance for ongoing support
Nasal optimization protocol:
Intake breathing strips
“Three-blow method” (Xlear + clearance + support)
ENT collaboration for structural nasal concerns
Pre/post objective sleep tracking (SleepImage)
Why This Case Matters
This isn't just about one patient; it's about changing how we think. Dentists often notice early signs like worn teeth, fractures, failed dental work, and muscle or joint strain. However, many dentists hesitate to screen for these issues because of limited time, unclear roles, and a lack of confidence. While these challenges are known, there are also solutions: better education, integrating screening into daily routines, and having clear referral processes.
A Clinical Reframe
Instead of asking:
“Why do this patient’s teeth keep breaking?”
Ask:
“What is the body trying to accomplish during sleep?”
When you answer that question…
Everything changes.
(Hosted externally for optimal viewing across devices)
Selected References
American Dental Association. (2017). Policy on SRBD screening
Sjöholm et al. (2000). Sleep bruxism in SDB
Oksenberg & Arons (2002). Bruxism and OSA relationship
Yeghiazarians et al. (2021). OSA and cardiovascular disease
Huynh et al. (2011). Craniofacial morphology and airway
Bennett CM. (2024). Dentist experiences with SRBD screening
Coach Cathy’s Corner (Functional Nutrition Lens)
Supporting the Airway Through Nutrition
Excess digestive acid and reflux can contribute to nasal congestion and airway resistance, especially at night. A simple starting point is reducing common triggers like late meals, alcohol, caffeine, chocolate, and highly processed foods.

Focus instead on whole, low-inflammatory foods that support digestion and reduce upper airway irritation:
Lean proteins (fish, poultry)
Cooked vegetables (zucchini, carrots, leafy greens)
Low-acid fruits (melon, berries)
Healthy fats (olive oil, avocado)
To minimize allergic load and mucus production, consider reducing dairy, refined sugar, and ultra-processed foods. These can increase inflammation and contribute to airway reactivity.
Hydration, mindful eating, and finishing meals 2–3 hours before sleep can also improve nighttime breathing.
When the airway is calmer, the body has less need to compensate, helping reduce parafunctional activity such as bruxism.
Selected Peer-Reviewed References with Links
Thurtell MJ, Wall M. Idiopathic intracranial hypertension. Neurology, 2013.
Sugita Y et al. Sleep apnea and intracranial pressure. Chest, 1985.
Pirelli P et al. Rapid maxillary expansion in children with sleep apnea. AJODO, 2004.
Villa MP et al. Orthodontic expansion and pediatric sleep-disordered breathing. Sleep Medicine Reviews, 2015.
Van Cauter E et al. Sleep and growth hormone regulation. Endocrine Reviews, 2000.
Russo MA, Santarelli DM, O’Rourke D. The physiological effects of slow breathing in the healthy human. Breathe (ERS). 2017.

Final Thought
You can replace a crown, but you can't fix a broken system quickly. Airway-focused dentistry is about understanding better, not doing more. For your health and development, focus on the airway. Let sleep work its magic, and growth will come.
If you found this helpful, forward it to a colleague or sleep physician partner. Let’s grow the movement, one documented, approved, and healed patient at a time.
Until next week,
Dr. Michael & Cathy Bennett
More Than Teeth | A Mission for Generational Health
Reply