Table 15.
Characteristics of the study of Kavaklı [21]
| Study | Type of study | Aim of the study | Patient recruitment | Inclusion criteria | Exclusion criteria | n | Therapeutic comparison |
| Kavaklı [21] | Randomized controlled trial | To compare the therapeutic efficacy of two different intraoral devices on the EMG activity of bruxers during sleep. | Self-presentation at the Hacettepe University Health Science Institute, Ankara (Turkey) | 1. Self-reported tooth clenching and tooth grinding for at least 6 month | 1. More than two missing molars | 20 (average age: 31 years; range: 14–52 years) | NTI-tss device (n = 11) vs. Michigan- type stabilization splint (SS) (n = 9) worn at night |
| 2. Grinding sounds during sleep for at least 3 nights per week as confirmed by bed-partner | 2. Removable prosthetic restoration | ||||||
| 3. Jaw muscle discomfort | 3. Gross malocclusion | ||||||
| 4. Abnormal tooth wear | 4. Constant use of sleep medication | ||||||
| 5. Masseter hypertrophy | 5. Abuse of alcohol and/or drugs | ||||||
| 6. Diagnosis of sleep bruxism in a sleep laboratory | 6. Neurological or psychological diseases | ||||||
| 7. Sleeping disorders | |||||||
| 8. Internal TMJ derangements as diagnosed with an MRI | |||||||
| Study | Study duration | Outcome parameters | Results | Authors' conclusions | |||
| Kavaklı [21] | 4 months | (A) Sleep variables: | Within-treatment-group pre- post differences | 1. Both splint designs do not stop sleep bruxism activity as shown by polysomnographic evaluation. | |||
| - sleep quality | |||||||
| - total sleep time | NTI-tss device: | 2. The SS does not reduce the frequency, duration or intensity of the sleep bruxism. | |||||
| - sleep efficiency | - no changes of other sleep parameters | 3. The NTI-tss device reduces the intensity of bruxism. | |||||
| - sleep latency | - no changes of respiratory parameters | 4. Due to its positive effect on sleep bruxism and its easy adapatability, the NTI-tss device is recommended if regular check-ups by a dentist are possible. | |||||
| - REM latency | - no changes in occlusion | ||||||
| - percentages of stage duration | - reduced intensity of masseter and temporalis muscles contraction activities compared to baseline | ||||||
| - number of awakenings during sleep | |||||||
| - number of movements during sleep | |||||||
| Stabilization splint: | |||||||
| (B) Respiratory variables: | - sleep stage 2 was shorter as compared to baseline | ||||||
| - apnea | |||||||
| - hypoapnea | - no changes of other sleep parameters | ||||||
| (C) Bruxism-related variables as derived from masseter and temporal muscle activity: | - no changes of respiratory parameters | ||||||
| - total bruxism duration | - no changes of sleep bruxism activity | ||||||
| - number of bruxism episodes/night | |||||||
| - number of bruxism episodes/h |
Between-groups post- treatment differences No changes |
||||||
| - number of bruxism burst/episode | |||||||
| - number of bruxism burst/h | |||||||
| - amplitude of bruxism episodes | |||||||