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NCT Number: NCT06320665

Assessment of Vertical Pattern in Correlation With Third Molar Inclusion : A 3D CBCT Analysis

The objective is to compare the sagittal and vertical skeletal parameters of patients with an impacted third molar.

Patients will be analyzed according to their skeletal characteristics: skeletal class (sagittal direction) and facial skeletal typology (vertical direction).

The inclusion characteristics of third molars will also be analyzed, to see the links between typology and inclusion. The principal hypothesis is no significant difference in third molar inclusion patterns in relation to skeletal divergence.

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Key information

Conditions

Impacted Third Molar Tooth Stomatognathic Diseases Tooth Diseases Tooth, Impacted

Age range

15 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Département d'Orthopédie dento-faciale

Nancy, 54000, France

Location status: Recruiting

Location contact

Bart Vande Vannet, professor

CONTACT

Mathilde Laé, intern

CONTACT

[email protected]

+ 33 7 81 8938 50

Mathilde Laé, intern

PRINCIPAL_INVESTIGATOR

About this study

The study is a non-interventional (observational) research involving the human person, research on existing data (retrospective study) and samples dealing with dentofacial orthopedics.

This study analyzes third molar inclusion patterns in relation with the skeletal characteristics, sagittal and vertical typology.

This is a comparative retrospective study of radiographs in three dimensions before any orthodontic treatment. The patients studied are at Bacchetti CS stage 5 (adults), and the third molar must be at least at Nolla stage 6 of formation.

There is no control group but there are subgroups depending of the skeletal characterics.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • CMV stage 5 on lateral radiography (end of growth)
  • at least one impacted third molar at minimum Nolla stage 6 development

Exclusion criteria

  • Previous maxillofacial trauma
  • Growing patients
  • Missing permanent tooth or early avulsion
  • Dysplasia
  • Dentofacial deformities
  • Endocrinological pathologies with implications for maxillofacial growth
  • Syndromes
  • History of maxillofacial or orthognathic surgery
  • History of orthodontic treatment
  • Incomplete data

Treatment and study plan

Radiographic measurement

Other

Measurements taken on 3D radiographs, to assess third molar inclusion and skeletal typology (vertical and sagittal)

Primary outcomes

  1. Distance between the occlusal plane and the second molar

    Time frame: One day

    Depth of the third molar in mm

  2. Angle of the third molar

    Time frame: One day

    The coronal-radicular axis of the mandibular third molar, and the occlusal plane of the mandibular 1st and 2nd molars, when these are in a normal, functional position on the arch (in degrees)

Study contacts

Contact information is provided by the study sponsor or research team.

Bart VANDE VANNET, PhD

CONTACT

[email protected]

+32496284339

Mathilde LAE

CONTACT

[email protected]

+33781893850

Sponsors and collaborators

Lead sponsor

Central Hospital, Nancy, France

Other

Registry information

Important dates

Study start
2024
Primary completion
2025
Study completion
2025
First posted
Mar 20, 2024
Registry last updated
Mar 28, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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