Investigation of criteria for determining non-functional masseter muscle activity in the waking

Investigation of criteria for determining non-functional masseter muscle activity in the waking - Investigation of criteria for determining non-functional masseter muscle activity in the waking

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000052459

Enrollment

Registered

2023-10-12

Start date

2023-11-01

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Normal subjects with no abnormalities in jaw and oral functions

Interventions

Measurement of masseter muscle activity for a long period of time (about 8 hours) and for a short period of time under stress load

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Healthy subjects with no abnormalities in oral and maxillofacial function were asked to answer the Oral Behavior Checklist (OBC), and were divided into two different groups based on the total score of OBC items 3, 4, 5, 6, 7, and 11 (0-7 points: low possibility of AB, 8 or more points: high possibility of AB).

Exclusion criteria

Exclusion criteria: Patients with general, functional or mental disabilities Those who habitually take medicines that affect swallowing activity and the central nervous system. Those who have pain due to temporomandibular joint disorder, tooth and gum pain. Those who are missing five or more permanent teeth (excluding third molars).

Design outcomes

Primary

Measure	Time frame
Masseter muscle activity	—

Countries

Japan

Contacts

Public ContactAkira Nishiyama

Tokyo Medical and Dental University Department of General Dentistry

anishi.tmj@tmd.ac.jp03-5803-5568

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026