|Frequently Asked Questions
Restrictions | Durability
What does "NTI" stand for?
Nociceptive (relating to the perception of things that could be
harmful); Trigeminal (the nerve that controls the major muscle of
Doesn't the NTI-tss cause posterior
supra-eruptions of the teeth or anterior intrusion?
No. Since the patient cannot wear the NTI-tss device while
chewing food, the posterior alveolar structures receive regular
stimulation every day, therefore, there is no opportunity for a
functional adaptation of the occlusal scheme, that is supra-eruption of
the teeth.. Research shows that alveolar bone requires at least 8 days
of lack of stimulation before bone growth at the apex
(supra-eruption) can initiate. As for anterior intrusion, the lack
of continuous apical force does not provide adequate opportunity to
intrude an incisor. However, Changes in the jaw
relationship can be observed within 8 days (which is identified as an
change in the occlusal scheme), and is a result of the normalization of
Isn't it too small and easily dislodged?
No, the NTI device is retro-fitted over un-prepared teeth with
cold-cure acrylic. The practitioner must relieve the internals to
provide for a snap-in fit, without strain or pressure on the teeth. The
patient must make a dedicated effort to remove the device. If the
patient is able to remove the device without using their hands, then it
should be re-lined or/and made to fit additional lateral teeth for added
Isn't the NTI-tss only indicated for
No. The NTI-tss is indicated for all types of TMDs. The only way
*any* musculature of the head and neck can contract with significant
intensity is to have either canine or posterior teeth (or both) in
occlusion. It is the occluding of these teeth which allows
the musculature to exert strain on the alveolar structures, TM joint(s),
and sphenoid bone (pterygoid plates). Without the occluding of
these teeth (i.e., "rest position"), these structures stand the best
chance for healing and remodeling. Therefore, the NTI-tss is ideal
for all types of TMDs and MPDs.
Is there a patient with whom the NTI-tss clearly would not be
Assuming the patient has the adequate dentition to support the NTI-tss
matrix, the NTI-tss will be effective in the presence of muscular
parafunction. A lack of effect can be used as a diagnostic rule-out
method (assuming protocol was followed with no oversights)
Are there age restrictions for treatment
While every dentist has certainly heard parents complain of a very
young child who grinds their teeth while sleeping, the Standard NTI-tss
device is best suited for permanent teeth. However, for children
without permanent teeth who are symptomatic resulting from muscular
parafunction, a custom NTI-tss type device can be fabricated.
How long should a patient expect the NTI-tss
device to last?
The duration of the NTI-tss device is dependent on the intensity of the
patient's grinding, not clenching. If a patient is an intense grinder,
over time they may develop a divot in the Discluding Element of the
NTI-tss. This situation would simply require periodic filling and
smoothing of the divot.
Does insurance cover the cost?
Usually dental or medical insurance plans will help pay for the
service, but all plans are different. The same dental insurance codes for
mouthpieces, splints, and TMD devices all apply to the NTI-tss. FDA 510(k)
approval for the prevention of medically diagnosed migraine pain has
qualified the NTI as being reimbursable by most medical insurances.
Coverage should be discussed with your dentist.
How soon should the patient expect to see the presenting symptoms
Subsiding symptoms are directly related to the degree and longevity of
each individual's condition. However, it is not unusual for some patients
to report significant relief overnight; others usually within two to four
Most Frequently Asked Patient
I'll swallow it.
- Made properly, the NTI device cannot be removed without using your
My teeth will supra-erupt . . . because they do not touch in the
- The device can not be worn while eating;
- Teeth can not supra-erupt since the teeth are stimulated by eating
(the NTI-tss matrix is NOT worn during/while eating)
- Periodontal ligament that surrounds the root and holds the tooth in
place - if this ligament is stimulated (exercised) it will
continue holding the teeth in correct position.