Mandibular advancement device
Disclosed herein are mandibular advancement devices comprising an upper splint and a lower splint, where the upper splint comprises one or more upper fins, where each upper fin is located at a distance UD from back of the upper splint; the lower splints comprise one or more lower fins, where each lower fin is located at a distance LD from back of the lower splint; where the position of the upper and lower fins is unchangeable. Also disclosed are methods of reducing partial constriction of airway during sleep for a patient, the method comprising identifying a patient in need thereof; and administering to the patient the disclosed mandibular advancement device. Also disclosed are methods of manufacturing a mandibular advancement device, the method comprising obtaining measurements from a patient's dentition; digitally designing a mandibular advancement device; and milling the mandibular advancement device.
1. A mandibular advancement device (MAD) for a patient, comprising:
an upper splint comprising an imprint configured to fit onto the upper dentition of the patient at least one upper fin located at an unchangeable distance UD from a posterior end of the upper splint,
wherein the at least one upper fin is affixed to the upper splint buccal to the buccal surface of the maxillary teeth, and when the upper splint is fit onto the upper dentition the at least one upper fin protrudes downward below the occlusal plane of the upper splint;
a lower splint comprising an imprint configured to fit onto the lower dentition of the patient and at least one lower fin located at an unchangeable distance LD from a posterior end of the lower splint;
wherein the at least one lower fin is affixed to the lower splint buccal to the buccal surface of the mandibular teeth, and when the lower splint is fit onto the lower dentition the at least one lower fin protrudes upward above the occlusal plane of the lower splint;
wherein the at least one upper fin comprises an upper fin front surface and the at least one lower fin comprises a lower fin back surface, such that when the upper splint and the lower splint are worn together by the patient, the upper fin front surface contacts the lower fin hack surface thereby causing mandibular advancement of a lower jaw of the patient; wherein the contacting location between the upper fin front surface and the lower fin back surface is non-adjustable in mesial-distal direction;
the upper splint is configured to cooperate with the lower splint when worn together by the patient as a pair to achieve a mandibular advancement;
the unchangeable distances LD and UD are such that when the upper and lower splints are worn by the patient, the mandible is advanced from 0.5 mm to 6.0 mm;
and each of the upper splint and lower splint independently comprises an empty center, wherein the empty center adapted to accommodate the tongue of the patient when wearing the upper and lower splints.
2. The mandibular advancement device of claim 1 , wherein the upper splint or the lower splint is designed based on an impression of the teeth.
3. The mandibular advancement device of claim 1 , wherein a rake angle of the upper fin front surface or a rake angle of the lower fin back surface is selected from the group consisting of a neutral angle, a recline angle, and a procline angle.
4. The mandibular advancement device of claim 1 , wherein the upper splint and the lower splint contact each other along the patient's occlusal plane when the upper splint and the lower splint are fitted onto the upper dentition and the mandibular dentition, respectively, and the patient's mouth is closed.
5. The mandibular advancement device of claim 1 , wherein the upper splint and the lower splint contact each other along a plane, wherein the plane is at an angle with respect to the patient's occlusal plane.
6. The mandibular advancement device of claim 1 , wherein the upper splint or the lower splint are designed using a computer aided design (CAD) process for the digital design.
7. The mandibular advancement device of claim 1 , wherein the mandibular advancement is from between about 0.5 mm to 4.0 mm.
8. The mandibular advancement device of claim 1 , wherein the mandibular advancement is an advancement prescribed by a doctor.
9. The mandibular advancement device of claim 1 , wherein the imprint of the upper dentition a digital model of the upper dentition, and the imprint of the lower dentition embodies a digital model of the lower dentition, and each of the upper and lower splints is designed and manufactured according to a digital design.
10. The mandibular advancement device of claim 1 , wherein the upper splint or the lower splint are made of transparent material.
11. The mandibular advancement device of claim 1 , wherein the upper splint or the lower splint further comprise retention arms.
12. A set of mandibular advancement devices comprising at least one upper splint as set forth in claim 1 , and at least one lower splint as set forth in claim 1 , and wherein the total number of the at least one upper splint plus the total number of the at least one lower splint is at least three.
13. The set of mandibular advancement devices of claim 12 , comprising at least one upper splint and at least two lower splints, wherein the at least two lower splints result in a different amount of mandibular advancement when engaged with the at least one upper splint.