Effects of prolonged chewing upon the functional symptoms of internal derangements of the temporomandibular joint

Effects of prolonged chewing upon the functional symptoms of internal derangements of the temporomandibular joint - Effects of prolonged chewing upon TMJ internal derangements

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

NL-OMON

Registry ID

NL-OMON31483

Enrollment

Registered

2008-02-11

Start date

2008-01-01

Completion date

Unknown

Last updated

2024-05-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

anterior disc displacement clicking jaw TMJ hypermobilty

Interventions

Prolonged, bilateral gum chewing at a constant, controlled natural chewing pace for a period of maximum 60min.

Eligibility

Age

18 Years to 99 Years

Inclusion criteria

Inclusion criteria: Diagnosis of a TMJ internal derangement (anterior disc dispalcement or hypermobility)

Exclusion criteria

Exclusion criteria: - Intense pain from the masticatory system; - Impaired general health or complicated dental situation, that can limit the performance of the experiment for practical reasons; - Younger than 18 years.

Design outcomes

Primary

Measure	Time frame
Study parameters are measured with a so-called mandibular movement recording. Study parameter for TMJ anterior disc displacement is a change in the relative distance (in %) on which joint clicking (i.e. disc reduction) during mouth opening occurs, measured on sagittal condylar traces. Study parameter for TMJ hypermobility is the acceleration of the condyle (in mm/sec2), related to the joint click during mouth closure (i.e. snapping of the condyle along the articular eminence), measured on sagittal condylar traces.	—

Measure

Time frame

Study parameters are measured with a so-called mandibular movement recording. Study parameter for TMJ anterior disc displacement is a change in the relative distance (in %) on which joint clicking (i.e. disc reduction) during mouth opening occurs, measured on sagittal condylar traces. Study parameter for TMJ hypermobility is the acceleration of the condyle (in mm/sec2), related to the joint click during mouth closure (i.e. snapping of the condyle along the articular eminence), measured on sagittal condylar traces.

—

Secondary

Measure	Time frame
-	—

Countries

Netherlands

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)