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O'Brien Mandibular Positioning Appliance
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| Q: |
What type of bite registration is needed? |
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| A: | A protrusive bite made with wax, Jet Blue, or any standard bite material. |
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| Q: |
How far is the mandible advanced with the MPA? |
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| A: | 2-3 mm. |
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| Q: | How far is the bite opened with the MPA? |
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| A: | 4-5 mm. |
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| Q: | What are the indications for prescribing an MPA? |
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| A: | The MPA is indicated for people who are light to moderate snorers. |
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| Q: | What are the contra-indications for an MPA? |
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| A: | The MPA is contra-indicated for patients with sleep apnea. It is advisable to confer with a sleep specialist before prescribing a sleep appliance to anyone with a medical condition. It is also difficult (and sometimes impossible) to make an MPA for people with hyper-extended incisal edges on the central maxillary incisors. |
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| Q: | Will TMJ problems result from having the mouth open? |
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| A: | There is always a chance that a patient may experience initial muscle/joint soreness or dry throat. These symptoms normally subside within a few days of regular use. In extreme cases, teeth may shift slightly. |
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©2006 O’Brien Dental Lab, Inc. 4311 SW Research Way, Corvallis, OR 97333 (800) 445-5941 (541) 754-1238 fax (541) 754-7478