TAP 3 - Thornton Adjustable Positioner® 3

Last updated: August 19th, 2023

Thornton Adjustable Positioner® 3


The TAP 3 (Thornton Adjustable Positioner® 3) is a highly effective custom-made, 2-piece mandibular advancement device designed to tackle snoring and obstructive sleep apnea (OSA).

With its unique interchangeable hooks, it accommodates Class I, II, and III bites, allowing for precise degree adjustment to ensure maximum comfort and effectiveness. The hardware size has been optimized, providing more tongue room and allowing the lips to close, further enhancing the user's experience.

Key Features

  • Custom-made 2-piece mandibular advancement device
  • Interchangeable hooks for Class I, II, and III bites
  • Precise degree adjustment for maximum comfort
  • Smaller hardware size for improved tongue room
  • Hex Key provided for easy adjustments

How It Works

The TAP 3 positions the lower jaw forward during sleep, effectively preventing the soft tissue of the throat from collapsing and obstructing the airway. This forward positioning maintains an open airway, reducing or eliminating snoring and sleep apnea episodes.

Important Note

Prior to construction, a bite should be taken with the mandible advanced to 65%-75% and a 4mm interincisal opening. This ensures the perfect fit and optimal results.

Materials and Lining Options

The TAP 3 is crafted from the dental casts of each individual patient. The outer layer is made of a durable polymer (polycarbonate), and it offers a choice of two unique linings: Triple Laminate (TL) and ThermAcryl®. The dual laminate polymer combined with the outer hard plastic shell creates a triple-laminated tray, providing the perfect balance of durability and comfort.


1. Is the TAP 3 effective for both snoring and sleep apnea?

Yes, the TAP 3 is designed to effectively address both snoring and obstructive sleep apnea, providing relief and improving sleep quality.

2. Can the TAP 3 be adjusted for individual comfort?

Absolutely! The TAP 3 comes with an Adjustment Key that allows patients to adjust the protrusion of their lower jaw to the most effective and comfortable position.

3. How is the TAP 3 different from other oral devices?

The TAP 3's unique design focuses on the tongue itself, offering an alternative approach to other devices that mainly advance the mandible. This design contributes to its comfort and effectiveness.

4. How long does the TAP 3 last?

The TAP 3 typically lasts between three to seven years, depending on patient wear and care. Regular follow-up visits with a healthcare professional are essential for maintaining its longevity and effectiveness.


Explore the most suitable mouthpieces by reading our snoring guard reviews for home testing.

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