Sleep Apnea and Airway Health
Dental sleep medicine and airway dentistry in Vitacura: clinical evaluation, mandibular advancement devices, and integrated management of snoring and obstructive sleep apnea.
Obstructive sleep apnea (OSA) and sleep-disordered breathing are systemic conditions with serious downstream effects: hypertension, cardiovascular risk, cognitive decline, chronic fatigue, bruxism, temporomandibular pain, and in children, altered facial growth. Dentistry plays a central role in early diagnosis and in a meaningful share of treatment. At Atria Sampaio in Vitacura, airway evaluation is part of every patient's clinical workup, and we treat with evidence-based oral appliances in coordination with pulmonology and sleep medicine when the case requires it.
The first step is recognizing signals most patients don't know are dentally relevant: habitual snoring, waking with choking sensation, daytime sleepiness despite adequate sleep, jaw pain on waking, morning headaches, nocturnal bruxism, dry mouth on rising, or reflux. In consultation we evaluate orofacial anatomy (Mallampati score, tongue position, tonsil size), breathing pattern, bruxism signs, and bite. When indicated, we refer for a sleep study (polysomnography) to confirm diagnosis and grade severity.
Our primary tool in dental sleep medicine is the mandibular advancement device (MAD), an intraoral appliance custom-fitted to advance the mandible slightly during sleep, opening the upper airway. Modern MADs are fabricated with intraoral scanning and digital design: precise fit, comfortable thermoplastic materials, titratable advancement mechanisms. Clinical evidence supports their use in mild to moderate apnea, in severe apnea patients who cannot tolerate CPAP, and as an adjunct in selected cases.
In severe apnea or with clear clinical indication, CPAP remains the gold standard. But CPAP adherence is notoriously low: many patients abandon it within months. That's where MAD becomes the most-used alternative, with significantly higher adherence rates and documented clinical efficacy. The decision between CPAP, MAD, or combined therapy is made clinically, considering the apnea-hypopnea index (AHI), individual anatomy, and patient preference.
Primary snoring without apnea is also treated with MAD when the patient's or partner's sleep quality is affected. While less serious than OSA, habitual snoring can be the first sign of an evolving respiratory disorder and always justifies a complete airway evaluation.
In pediatric dentistry, the dentist's role in airway is even more critical. A child who breathes through the mouth or snores chronically may be developing an altered facial pattern: narrow palate, crossbite, malposed tongue, retrognathia. Detecting it early enables intervention with maxillary expansion, functional orthopedics, and when appropriate, referral to ENT for adenoid or tonsillar hypertrophy. The window of opportunity is narrow: what can be corrected at age 6 to 9 is much harder to reverse in adolescence or adulthood.
Sleep bruxism and obstructive sleep apnea are clinically connected. Nocturnal masticatory muscle hyperactivity can be a response to microarousals caused by apneic episodes. So when we see severe bruxism, we evaluate the airway systematically. Treating bruxism alone with a conventional splint, without investigating the underlying cause, can leave the central problem unaddressed.
Our approach integrates dental sleep medicine with digital dentistry and sleep medicine itself. We use cone-beam CT (CBCT) for three-dimensional upper airway analysis, intraoral scanning for digital appliance design, and coordinated referral with pulmonologists and ENT specialists when the case demands a multidisciplinary approach. Airway evaluation is part of the academic standard we apply as NYU College of Dentistry faculty: a mouth cannot be understood without understanding breathing.
Benefits
- ✓Complete clinical airway evaluation: Mallampati, orofacial anatomy, systemic signs
- ✓Digitally designed mandibular advancement device (MAD) using intraoral scanning
- ✓Three-dimensional airway analysis with cone-beam CT (CBCT) when indicated
- ✓Coordinated care with pulmonology and sleep medicine specialists
- ✓Pediatric airway evaluation: early detection in mouth-breathing children
- ✓Integrated management of sleep bruxism associated with obstructive apnea
- ✓Comfortable thermoplastic materials with titratable advancement mechanisms
- ✓Evidence-based protocol following AASM and AADSM international references
Our Approach
The process starts with detailed clinical evaluation: sleep history, Epworth sleepiness scale, orofacial exam, occlusal and joint assessment, photographic record, and when needed, cone-beam CT to visualize the upper airway in three dimensions. If clinical signs suggest apnea, we refer for polysomnography or respiratory polygraphy with a sleep medicine team. With confirmed diagnosis, we decide together with the patient on the best therapeutic option: MAD for mild to moderate cases or as a CPAP alternative, combined therapy in selected cases, or upfront referral if CPAP is the indicated start point. We design the MAD with digital intraoral scanning and fabricate it with personalized fit, titratable advancement mechanism, and comfortable thermoplastic material. Follow-up includes clinical titration, efficacy verification with control polysomnography when appropriate, and periodic occlusal adjustment to minimize side effects. In pediatric patients, the evaluation focuses on breathing pattern, palate, bite, and tongue position, with ENT referral when adenoid-tonsillar obstruction is suspected, and early orthopedic intervention when indicated.
Frequently Asked Questions
What is a mandibular advancement device and how does it work?
It's an intraoral device, similar to a splint, worn at night, that slightly advances the mandible. That movement enlarges the upper airway space and reduces the obstruction that causes snoring and obstructive apnea. It's custom-designed with intraoral scanning and has a titratable mechanism to fine-tune the advancement.
Does the MAD replace CPAP?
It depends on the case. In mild to moderate apnea, the MAD is a first-line alternative. In severe apnea, CPAP remains the gold standard, but the MAD is a valid alternative when the patient cannot tolerate CPAP, or as combined therapy. The decision is clinical and, when appropriate, made in coordination with pulmonology.
How do I know if I have sleep apnea?
The most frequent signals are habitual snoring, waking with choking, daytime sleepiness despite adequate sleep, jaw pain or headache on waking, dry mouth, and bruxism. Definitive diagnosis requires a sleep study (polysomnography or respiratory polygraphy). In consultation we assess clinical signs and, if indicated, coordinate the referral.
Why does a dentist treat apnea?
Because the upper airway passes through anatomical structures the dentist evaluates and manages: mandible, tongue, palate, occlusion. The mandibular advancement device is a dental appliance, and its design and fit require specific training in dental sleep medicine. We always work in coordination with pulmonologists and ENT specialists when the case requires it.
My child breathes through the mouth, should I do something?
Yes. Chronic mouth breathing in children can alter palate development, tooth position, bite, and facial growth. Early evaluation identifies the cause (adenoid or tonsil hypertrophy, nasal obstruction, habits) and allows intervention before the pattern consolidates. The window between ages 4 and 9 is the most critical.
Does the MAD cause discomfort or bite changes?
Mild muscle or joint sensitivity is possible during the first weeks, resolving with gradual titration. Minor occlusal changes are possible long-term, which is why we do periodic follow-up and morning repositioning exercises. With proper management, effects are manageable and most patients adapt well.
Is bruxism related to apnea?
Yes. Nocturnal masticatory hyperactivity can be a response to microarousals caused by apneic episodes. When we see severe bruxism, we systematically evaluate the airway. Treating bruxism alone with a splint, without investigating whether sleep-disordered breathing is behind it, can leave the real cause unaddressed.
How long does it take to adapt to the MAD?
Most patients adapt in two to four weeks. We titrate advancement gradually to minimize muscle discomfort. After titration, follow-up polysomnography when appropriate verifies clinical efficacy and allows fine-tuning if needed.