Pilot study on the change in condylar position as a function of different jaw closing forces

Pilot study on the change in condylar position as a function of different jaw closing forces - condylar displacement

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00035415

Enrollment

Registered

2025-08-15

Start date

2025-02-10

Completion date

Unknown

Last updated

2025-10-06

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

Conditions

F45.8

Interventions

Group 1: Patients with suspected awake bruxism are examined once using an axiography system with regard to the change in condylar position depending on different jaw closing forces Group 2: Patients w

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: - Stomatognath healthy subjects (CMD brief findings) - Patients with a strong suspicion of waking bruxism

Exclusion criteria

Exclusion criteria: - Lack of consent from the patient, - suspected diagnosis of arthropathy, - severe overbite that does not allow the attachment of a paraocclusal tray (axiographic system), - patients with dementia or other cognitive impairments who are unable to consent to the study, patients who do not consent to participate in the study for other reasons

Design outcomes

Primary

Measure	Time frame
Differences in 3-D condylar position at maximum mandibular closing force (MVC) and at 5%, 10% and 50% of max. MVC - Jaw closing force sEMG controlled with bite in habitual maximum intercuspidation (bite on all teeth): o Change in condylar position with different jaw closing forces in the respective joint o Side differences (right vs left joint) - Jaw closing force bite fork controlled when biting down on the unilaterally (regio 1st molar) placed bite fork: o Change in condylar position with different jaw closing forces in the ipsi- and contralateral joint o Side differences (ipsi- vs contralateral joint)	—

Measure

Time frame

Differences in 3-D condylar position at maximum mandibular closing force (MVC) and at 5%, 10% and 50% of max. MVC - Jaw closing force sEMG controlled with bite in habitual maximum intercuspidation (bite on all teeth): o Change in condylar position with different jaw closing forces in the respective joint o Side differences (right vs left joint) - Jaw closing force bite fork controlled when biting down on the unilaterally (regio 1st molar) placed bite fork: o Change in condylar position with different jaw closing forces in the ipsi- and contralateral joint o Side differences (ipsi- vs contralateral joint)

—

Secondary

Measure	Time frame
Differences between stomatognathic healthy subjects and subjects with suspected awake bruxism	—

Countries

Germany

Contacts

Public ContactSabine Linsen

Universitätsklinikum Bonn, ZZMK - Zahnärztliche Prothetik

sabine.linsen@ukbonn.de+4922828722436

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026