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Dental health care providers: CLICK HERE to go to the ordering page.
Lower Device |
The Lower device is the most commonly used device. The Discluding Element of the Lower device is tapered to the lateral borders of the device. Primarily intended for the mandible (although not exclusively), the design most efficiently prevents canine occluding contact.
(formally referred to as the "IG", or Incisal Guidance device)
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If a patient is has a Class III occlusion, and whose parafunction includes extreme protrusive clenching/grinding, two opposing "Lower" devices can be used. The lingual extension of the upper DE can be reduced/removed as well as the labial extension of the lower DE.
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Upper device  |
The Discluding Element has been reduced in vertical dimension when compared to the Standard Device (see below), as well as shortened labially. The labial wall has also been reduced in thickness. Primarily intended for the maxilla. The Upper device is most commonly used when incisal overlap is more than ideal, making the Lower device contraindicated (the Lower device would cause for an excessive condylar rotation during occluding on the device). The DE can be ramped "up" towards the palate to ensure minimal VDO during occluding (thereby minimizing condylar rotation).
(formally referred to as the "RV", or Reduced Vertical device)
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Lower-Wide |
The Lower-Wide device has a thicker (and therefore, stronger) DE. The Lower-Wide was originally designed for the patients whose extremely intense clenching could fracture the original Lower device (the thickness of the Lower device's DE has since been increased, now making the Lower-Wide device less frequently necessary). The width of the Lower-Wide allows for increased retention for those cases where added retention is desired.
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Auxiliary "Slider" |
The Auxiliary "slider" is commonly used with a "deep bite" incisal overlap, where the DE is considerably ramped or "stepped" to maintain minimal opening. It can also be used over the incisors that oppose an NTI device (typically the Lower device) to prevent the Lower device from fracture and/or to facilitate gliding movements when the incisors opposing the NTI device are irregular. Also commonly used on both arches simultaneously for the patient with normal incisal overlap, making for an extremely simple and effective therapeutic effect. Also for the migraine patient who requires reduction of daytime activity. See: Protocol for Migraine Therapy
(formally referred to as the "Daytime" device.
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Standard |
For general nighttime use, the Standard must typically be considerably altered by the practitioner for proper vertical dimension and horizontal orientation. Upon final modification, the Standard device will closely resemble the Upper or Lower device (see above). The Standard device was the original design of an NTI, but is no longer the treatment method of choice, due the increased likelyhood of undesired outcome from lack of proper modification. The Standard device will be discontinued in 2010 and will be available only while the existing inventory lasts.
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