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Status unknownNCT04317131Updated Mar 23, 2020

Body Posture and the Stomatognathic System of School-age Children

An observational study in Postural; Defect, Stomatognathic System Abnormalities and Malocclusion, sponsored by University of Rzeszow. Status unknown at 1 site in Poland. Open to participants aged 6 Years to 18 Years. Per ClinicalTrials.gov, last updated 2020-03-23.

Sponsored by University of Rzeszow · Observational

The sponsor has not verified this record recently (last verified Mar 2020), so the status shown — last known as Not yet recruiting — may be out of date.
Study type
Observational
Model
Other
Time perspective
Cross-sectional
Enrollment
400
Ages
6 Years to 18 Years
Sex
All
01

Study summary

The aim of the study is to demonstrate a correlation between body posture and the structure and function of the stomatognathic system in school-age children.

Read the detailed description

Both disorders of the stomatognathic system and body posture defects concern an increasingly younger population in Poland and in the world. The scale of both problems is constantly increasing. Structural and functional disorders in the area of the stomatognathic system have begun to be known as a disease of modern civilization. Bite defects immediately after tooth decay are the second most common dental problem for children around the world. The scale of the problem according to some sources makes up 75% of this population. Similarly, in the case of body posture defects in the spine, lower limbs and feet, it is estimated that they are present in up to 60-70% of Polish children. The critical period for the development of defects in both posture and the orofacial area falls at the same age, i.e. early school and puberty. Despite of the extensive literature describing both issues, there is still no clear and objective scientific evidence that would confirm the correlation of the two phenomena.

The presented project is an original cross-sectional study. A 400 school-age children between 6 and 15 years of age will participate in the study. Research will be conducted in randomly selected orthodontic clinics and primary schools.

The subjects will be divided into subgroups: a) children with correct body posture and without stomatognathic system dysfunction; b) children with a diagnosis of body posture defect; c) children with a diagnosis of malocclusion; d) children with a stomatognathic system dysfunction. After obtaining the mandatory written consent of the parent and child, the child's medical qualification to participate in the study will include the exclusion of: congenital structural defects of the spine, chronic diseases of the nervous system, genetic diseases, neuromuscular dystrophy, endocrine disorder, an ongoing contagious disease, present locomotor fracture, current muscular injury. The inclusion criterion will include: age of study participant from 6 to 15 years of age, in case of an existing defect in body posture/or malocclusion/or dysfunction of the stomatoghnatic system, lack of specific causes.

Methods

  • interview based on standardized questionnaires, i.e. Research Diagnostic Criteria of Functional Disorders of the Masticatory System BKD / ZCURNŻ
  • Polish version, TMD Questionnaire, Neck Disability Index, International Physical Activity Questionnaire (IPAQ) (short version), Questionnaire on Food Related Behavior (KZZJ)
  • clinical examination of the stomatognathic system (structural and functional), using JMA+ Analyser (Jaw Motion Analyzer) to analyse movement and function of the temporomandibular joints, mandibular position, condyle position (EPA), and access the muscle action potentials through bipolar skin surface electrodes EMG, assessment of occlusion by visual method according to Angle classification.
  • comprehensive 3D examination of the body posture (static and dynamic) in the area of the spine, lower limbs and feet, performed by photogrammetric method (4th Generation MORA) and non- invasive image acquisition technology with the aid of infrared (Kineod) and The CQ Elektronik system.
  • functional assessment of the spine and lower limbs mobility trough a wireless motion sensor Moover.
  • complementary tests, i.e. anthropometric measurements (height, weight, waist and hip circumference, skin folds), foot pressure on the ground and body balance accessed by pedobarograph FreeMed, body mass components measured by the Tanita MC 980 MA (BIA method), evaluation of 7-days of physical activity by accelerometer ActiGraph GT3X-BT, blood pressure measurement by Medel Connect Cardio MB 10 monitor.
02

Conditions studied

  • Postural; Defect
  • Stomatognathic System Abnormalities
  • Malocclusion

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Keywords

  • body posture
  • stomatognathic system
  • malocclusion
  • children
03

In context

Malocclusion

457 studies on the registry are indexed under Malocclusion; 89 are open to participants now.

This study's planned enrollment of 400 is above the median of 61 across 78 observational studies indexed under Malocclusion.

Browse Malocclusion studies →

Lead sponsor

University of Rzeszow is the lead sponsor of 37 studies on the registry; 14 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
6 Years to 18 Years
Sexes eligible
All
Sampling method
Probability sample

Study population

A 400 school-age children between 6 and 15 years of age will participate in the study.

Research will be conducted in randomly selected orthodontic clinics and primary schools.

Inclusion criteria

  • age of study participant from 6 to 15 years of age
  • in case of an existing defect in body posture, lack of specific causes
  • in case of an existing malocclusion, lack of specific causes
  • in case of dysfunction of the stomatognathic system, lack of specific causes

Exclusion criteria

Exclusion Criteria:

  • congenital structural defects of the spine,
  • chronic diseases of the nervous system,
  • genetic diseases,
  • neuromuscular dystrophy,
  • endocrine disorder
  • an ongoing contagious disease
  • present locomotor fracture
  • current muscular injury
05

Study design

Observational model
Other
Time perspective
Cross-sectional
Enrollment
400 participants (estimated)
Patient registry
No

Interventions

  • Diagnostic testResearch Diagnostic Criteria of Functional Disorders of the Masticatory System BKD / ZCURNŻ - Polish version

    Interview and clinical examination of stomatognathic system based on standardized tool BDK/ZCURNŻ.

  • DeviceClinical examination of the stomatognathic system (structural and functional)

    Examination with the use of JMA+Analyser (Jaw Motion Analyser) to analyse movement and function of the temporomandibular joints, mandibular position, condyle position (EPA), and access the muscle action potentials through bipolar skin surface electrodes EMG, assessment of occlusion by visual method according to Angle Classification.

  • Device3D examination of the body posture

    Comprehensive, three- dimensional examination of the body posture (static and dynamic) in the area of the spine, lower limbs and feet, performed by photogrammetric method (4th Generation MORA) and non- invasive image acquisition technology with the aid of infrared (Kineod) and The CQElektronik system.

  • DeviceFunctional assessment of the spine and lower limbs

    Functional assessment of the spine and lower limbs mobility trough a wireless motion sensor Moover.

  • DeviceComplementary tests

    Anthropometric measurements (height, weight, waist and hip circumference, skin folds), foot pressure on the ground and body balance accessed by pedobarograph FreeMed, body mass components measured by the Tanita MC 980 MA (BIA method), evaluation of 7-days of physical activity by accelerometer ActiGraph GT3X-BT, blood pressure measurement by Medel Connect Cardio MB 10 monitor.

06

What researchers measure

Primary outcomes

  1. Clinical examination of the stomatognathic system (structural)

    Assessment of occlusion by visual method according to Angle classification. Research Diagnostic Criteria of Functional Disorders of the Masticatory System.

    Time frame: at baseline, immediately after medical qualification to the study

  2. Comprehensive body posture assessment

    Static and dynamic body posture test using 4th Generation MORA which enables a detailed and spatial analysis of body posture by photogrammetric.

    Time frame: at baseline, immediately after medical qualification to the study

  3. Clinical examination of the stomatognathic system (functional)

    JMA+ Analyser (Jaw Motion Analyzer) system will allow to analyse movement and function of the temporomandibular joints, mandibular position, condyle position (EPA), and access the muscle action potentials through bipolar skin surface electrodes EMG.

    Time frame: at baseline, immediately after medical qualification to the study

  4. Comprehensive body posture assessment

    Next device used to to the body posture assessment will be KINEOD with pedobarograph which is a modern device for 3D analysis of body posture, in particular the back, but also lower limbs. The KINEOD system uses image acquisition technology with the aid of infrared. Therefore, it is a perfect complement to examining body posture using the so-called photogrammetric method, so-called moire projection method.

    Time frame: at baseline, immediately after medical qualification to the study

Secondary outcomes

  1. Functional assessment of the spine and lower limbs

    The assessment with the use of 3D device which is intertial sensor of movement. Its application in the scientific sphere allows the goniometric evaluation (range of movement) of the articulations. In the study it allows to assess the functional head and neck mobility and additionally in lumbar spine and lower limbs joints

    Time frame: at baseline, immediately after medical qualification to the study

  2. Anthropometric measurements

    Seca 213 stadiometer - equipment necessary to examine the basic anthropometric measurements of height and weight. Waist and hip circumference will be measured by centimetre tape.

    Time frame: at baseline, immediately after medical qualification to the study

  3. Body mass composition analysis

    Tanita MC 780 MA- segment body mass composition analyser using the bioimpedance method (BIA). The equipment has 8 electrodes for a detailed analysis with segment reading - the division of fat and muscle mass in the left and right arm, left and right leg and body, as well as between the leg muscularity index, segment index for fat tissue and muscle mass.

    Time frame: at baseline, immediately after medical qualification to the study

  4. Foot pressure

    FreeMed Posture MAXI60 Pedobarograph will allow to access pressure fields acting between the plantar surface of the foot and a supporting surface. The device shows exactly degree of patient's foot presses on the ground. Additionally, it will allow testing the patient's equivalent responses.

    Time frame: at baseline, immediately after medical qualification to the study

  5. Body balance

    FreeMed Posture MAXI60 Pedobarograph will allow to access pressure fields acting between the plantar surface of the foot and a supporting surface. The device shows exactly degree of patient's foot presses on the ground. Additionally, it will allow testing the patient's equivalent responses.

    Time frame: at baseline, immediately after medical qualification to the study

  6. 7-day physical activity

    ActiGraph GT3X-BT accelerometers are currently the most accurate and objective motion sensors for assessing physical activity. The devices detect the acceleration of body movement in three planes, giving the possibility of reliable measurement of the intensity and duration of physical activity, as well as the number of steps performed and the time spent passively. Motion parameters are read thanks to a piezoelectric sensor. The subject will wear an accelerometer on his waist for an uninterrupted period of 7 days, excluding bathing time and swimming lessons.

    Time frame: at baseline, immediately after medical qualification to the study

  7. Blood pressure

    Medel Connect Cardio MB 10 blood pressure monitor for measuring systolic and diastolic blood pressure, heartbeat values, and ECG. Each subject will have their blood pressure tested three times.

    Time frame: at baseline, immediately after medical qualification to the study

07

Study locations

1 site
  • University of Rzeszów
    Rzeszów, 35-205, Poland
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 23, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04317131
Lead sponsor
University of Rzeszow
Responsible party
Justyna Leszczak (PhD, University of Rzeszow) — Principal investigator
First posted
Mar 23, 2020
Start date
Jun 30, 2020 (estimated)
Primary completion
Jul 30, 2020 (estimated)
Completion
Jan 5, 2021 (estimated)
Last update
Mar 23, 2020

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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