Study | Type of study | Aim of the study | Patient recruitment | Inclusion criteria | Exclusion criteria | n | Therapeutic comparison |
---|---|---|---|---|---|---|---|
Randomized controlled clinical trial | To evaluate the safety and effectiveness of the NTI-tss device for the reduction of frequency and severity of tension-type and migraine headaches. | Not reported | 1. Diagnosis of tension-type or migraine headaches | Presence of TMDs | 94 (average age and range: not reported) | NTI-tss device (n = 51) vs. full-coverage occlusal splint without cuspid rise and anterior guidance (similar to a bleaching tray) (n = 43) worn at night and during the day when perceiving stressful periodes | |
2. Intake of Sumatriptan as a rescue medication | |||||||
3. 3. Having experienced an average of two migraine episodes or 8 tension-type headaches per month | |||||||
4. Presence of natural or fixed prosthetic maxillary and natural mandibular incisors | |||||||
5. Overbite and overjet within normal limits | |||||||
6. Stable dentition with no current orthodontic treatment and fully erupted teeth | |||||||
7. No significant periodontal disease | |||||||
8. No TMD signs and/or symptoms | |||||||
9. At least 18 years of age | |||||||
Study | Study duration | Outcome parameters | Results | Authors' conclusions | |||
4 weeks baeline data + 8 weeks therapy | (A) Clinical objective outcomes: | Within-treatment-group pre-post differences | 1. "The NTI-tss appliance proved safe and efficacious in the reduction of medically diagnosed migraine and tension-type headache." | ||||
- Interocclusal record | NTI-tss group: | ||||||
- Tooth mobility of all anterior teeth | - 16% of the participants reported an 85% to 100% reduction of migraine headaches | ||||||
- Tooth sensibility of the anterior teeth (temperature, pressure) | Users reported an elimination of 46.9% of all headache pain as well as reduction of photophobia, phonophobia and nausea | ||||||
- Periodontal health of all teeth | Control group: | ||||||
- Periapical radiographs of the anterior teeth | - 7% of the subjects reported a 85% to 100% reduction of migraine headaches | ||||||
- Vitality of the anterior teeth | - 27% of the subjects reported an average 46% increase in migraine events | ||||||
- Tenderness of the head and neck muscles | - Increase of migraine frequency | ||||||
- Trigger points | Between-groups post-treatment differences | ||||||
- Range of mandibular motion | - In every category (headache episodes, dosages of rescue medicine (Imitrex®), phonophobia, photophobia, nausea), the percentage of reduction of all symptoms decreased for those in the NTI-tss group. | ||||||
- TMJ noises | |||||||
- TMJ tenderness | |||||||
- Tension-type headache | |||||||
- Migraine headache | |||||||
- Nausea | |||||||
- Photophobia | |||||||
- Phonophobia | |||||||
- Analgesics taken (and doses) | |||||||
- Use of rescue medicine (Sumatriptan®) | |||||||
(B) Clinical subjective outcomes (VAS): | |||||||
- Intensity of tension-type headache | |||||||
- Intensity of migraine |