Oral Functions and Malocclusions

Oral Functions and Malocclusions: a Comprehensive Epidemiological Study on 358 Schoolchildren in France

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT04869839

Acronym

MALODYS

Enrollment

359

Registered

2021-05-03

Start date

2017-01-01

Completion date

2017-05-31

Last updated

2025-04-10

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

Conditions

Malocclusion

Brief summary

The aim of our research is to establish a link between malocclusions and oral dysfunctions. The clinical examination includes: caries screening (DMFT and dft scores), a quantification of dental plaque (Silness and Loë's plaque index) and orthodontic treatment need (Haute Autorité de Santé HAS). The functional examination includes improper mouth breathing, abnormal deglutition and incorrect position of tongue at rest.

Interventions

OTHERoral examination

examination done by dentist

Study design

Observational model

ECOLOGIC_OR_COMMUNITY

Time perspective

CROSS_SECTIONAL

Eligibility

Sex/Gender

ALL

Age

10 Years to 12 Years

Healthy volunteers

Inclusion criteria

* All the pupils benefit from the clinical examination

Exclusion criteria

* NONE

Design outcomes

Primary

Measure	Time frame	Description
Dental malocclusion - extraoral examination	1 day	Dental malocclusion as defined by the HAS: \- An extraoral examination: sub-nasal profile, the sub-nasal angle and the labial-mental groove;
Dental malocclusion - intraoral examination	1 day	Dental malocclusion as defined by the HAS: \- An intraoral examination: right and left molar dental class (Angle classification, overjet (abnormal when\> 3mm)

Secondary

Measure	Time frame	Description
Functional oral examination - ventilation	1 day	The functional pral examination includes improper mouth breathing: type of ventilation -1: Number of patient with adenoid facies
Functional oral examination - deglutition	1 day	The functional examination includes abnormal deglutition. Number of patient with an abnormal déglutition (clinical exam)
Functional oral examination - position of tongue	1 day	The functional examination includes i incorrect position of tongue at rest. number of patient with en incorrect position of the tongue (clinical exam)
Oral health	1 day	* Index of the severity of the caries disease (DMFT and dft); * Silness and Loë's plaque index (0: absence of plaque, 1: plaque not visible to the naked eye but detachable with the probe; 2: plaque visible to the naked eye; 3: abundant plaque visible to the naked eye in the sulcus and on the marginal gingiva)

Countries

France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026