Masticatory Side-switch and Mixing Ability.

Summary

The main aim of this cross-over intervention study is to assess the effect of masticatory side-switch frequency on different aspects of masticatory function, including masticatory mixing ability and rhythm. A secondary aim is to explore the subjective perception of taste, muscular fatigue, and saliva production through a VAS. Thirty-six volunteers recruited for convenience, among students of the Degree of Dentistry of the Faculty of Medicine and Health Sciences of the University of Barcelona, will perform 6 tests, each consisting of 2 assays, chewing a two-coloured chewing gum, during 40 masticatory cycles. The tests will be randomised masticatory sequences of "free-style", "unilateral-right", "unilateral-left", switching the chewing side at 5% "G05", at 15% "G15" and at 25% "G25". Video recordings of these tests will be made to later assess, on slow playback, the change of the chewing side and the masticatory rhythm. The masticatory mixing ability will be determined through the scanning and posterior analysis of the red-channel in the histogram plug-in in "ImageJ" (R).

Conditions

• Chewing Problem
• Mastication Disorder

Interventions

BEHAVIORAL

F

The participant will be asked to chew the two-coloured chewing gum naturally.

BEHAVIORAL

R

The participant will be asked to chew the two-coloured chewing gum on the right-side.

BEHAVIORAL

L

The participant will be asked to chew the two-coloured chewing gum on the left-side.

BEHAVIORAL

G05

The participant will be asked to chew the two-coloured chewing gum changing the side in 5%.

BEHAVIORAL

G15

The participant will be asked to chew the two-coloured chewing gum changing the side in 15%.

BEHAVIORAL

G25

The participant will be asked to chew the two-coloured chewing gum changing the side in 25%.

Sponsors & Collaborators

• University of Barcelona

  lead OTHER

Study Design

Allocation

RANDOMIZED

Purpose

BASIC_SCIENCE

Masking

NONE

Model

CROSSOVER

Eligibility

Min Age

18 Years

Max Age

75 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2021-12-01

Primary Completion

2022-03-31

Completion

2022-09-28

Countries

• Spain

Study Locations