Oral Appliance Fitting and Titration

This guide explains the professional fitting and titration process for oral appliance therapy. It describes what typically happens at each step so you can understand what to expect.

What this means: You can use this information to understand the clinical process and why professional supervision matters.

What this does not mean: This page does not provide instructions for self-adjusting an appliance, does not determine whether you are a candidate, and does not replace the individualized guidance of your dental and medical providers. For a broader patient-journey overview, see the oral appliance process.

Before an appliance is made, a qualified dental provider performs an examination to assess whether an oral appliance may be appropriate and what design may suit your anatomy. This examination typically evaluates:

• Teeth: Number, condition, stability, and any restorations that may affect appliance fit
• Gums and periodontal health: Supporting structures that help retain the appliance
• Bite (occlusion): How the upper and lower teeth come together
• Jaw range of motion: How far the jaw can comfortably move forward, backward, and side to side
• Jaw joints (TMJ): Any existing jaw joint symptoms or muscle tenderness
• Oral anatomy: Tongue size, soft palate, and airway-related structures

This evaluation helps the provider determine whether an oral appliance is appropriate and select a design suited to your individual circumstances. Learn more about candidacy in the candidacy guide.

The provider reviews your relevant medical and dental history, which may include:

• Sleep apnea diagnosis, severity, and sleep study results
• Physician's treatment plan or prescription
• Previous treatment experience (CPAP use, tolerance, alternatives tried)
• Current symptoms (snoring, daytime sleepiness, morning headaches)
• Dental history, including prior jaw issues or TMJ symptoms
• Medications and general health conditions

This information helps the provider tailor the appliance selection and titration approach to your specific situation.

To fabricate a custom appliance, the provider takes records of your teeth and bite. This may involve:

• Traditional impressions: A soft material in a tray captures a physical mold of your upper and lower teeth.
• Digital scans: A handheld scanner creates a precise digital model of your teeth without impression material.

These records are sent to a dental laboratory where the custom appliance is fabricated to your exact dental anatomy. The specific technology depends on the provider and the appliance selected. A custom appliance is not an off-the-shelf device — see custom vs. OTC mouthguards for why this matters.

Along with impressions or scans, the provider records your bite registration — the relationship between your upper and lower jaw in a specific position. This record tells the laboratory how the appliance should position your jaw relative to its natural resting position.

The bite registration is taken with the jaw in a starting advancement position determined by the provider based on your anatomy and the planned titration approach. This is not the final therapeutic position — it is the starting point for gradual adjustment.

When the custom appliance is ready, you return for a delivery appointment. At this visit, the provider:

• Checks the fit on the upper and lower teeth
• Verifies retention — that the appliance stays securely in place
• Sets the initial jaw advancement position
• Provides instructions for insertion, removal, daily cleaning, and storage
• Schedules the first follow-up or titration visit

You will typically be asked to begin wearing the appliance nightly and to note any comfort issues, side effects, or symptom changes before the next visit.

Titration is the gradual, provider-supervised adjustment of the appliance to find the jaw position that best balances airway support with comfort and tolerability. The process typically involves:

• Incremental advancement: The lower jaw is advanced slightly at each visit — often a fraction of a millimeter — based on your response.
• Comfort and symptom feedback: You report how the appliance feels, whether snoring has changed, and any side effects.
• Clinical assessment: The provider evaluates jaw position, bite, and any dental changes at each visit.
• Titration review: Once a stable, effective position is found, the frequency of adjustment visits decreases.

Titration is performed by a qualified provider. You should not self-adjust beyond your provider's instructions.

A common assumption is that more jaw advancement always means better treatment. This is not the case. The goal of titration is to find the minimum effective jaw position — the smallest advancement that adequately supports the airway while maximizing comfort and minimizing side effects.

Excessive advancement can increase jaw soreness, bite changes, tooth pressure, and TMJ symptoms without proportionally improving airway support. The correct setting depends on individual anatomy, OSA severity, comfort, and treatment response — all of which are assessed clinically by the provider.

For patients with diagnosed OSA, the dental provider typically coordinates with the prescribing or treating physician. This coordination may include:

• Sharing the sleep study results and diagnosis
• Discussing the treatment plan and appliance selection
• Arranging objective follow-up testing — such as a follow-up sleep study — when ordered or clinically indicated
• Reporting treatment response and any concerns

This coordination is part of standard dental sleep medicine care. Learn more about the follow-up process in the oral appliance follow-up guide, and about side-effect monitoring in the side effects guide.