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

March 25, 2025 updated by: VANDE VANNET Bart, Central Hospital, Nancy, France

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.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

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.

Study Type

Observational

Enrollment (Estimated)

80

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

  • France
      • Nancy, France, 54000
        • Recruiting
        • Département d'Orthopédie dento-faciale
        • Contact:
        • Contact:
          • Bart Vande Vannet, professor
        • Principal Investigator:
          • Mathilde Laé, intern

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Probability Sample

Study Population

French adults with at least one impacted third molar

Description

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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Class I
Patient with class I occlusion, with at least one impacted third molar
Other: Radiographic measurement
Measurements taken on 3D radiographs, to assess third molar inclusion and skeletal typology (vertical and sagittal)
Class II
Patients with class II malocclusion, with at least one impacted third molar
Other: Radiographic measurement
Measurements taken on 3D radiographs, to assess third molar inclusion and skeletal typology (vertical and sagittal)
Class III
Patients with class III malocclusion, with at least one impacted third molar
Other: Radiographic measurement
Measurements taken on 3D radiographs, to assess third molar inclusion and skeletal typology (vertical and sagittal)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Distance between the occlusal plane and the second molar
Time Frame: One day
Depth of the third molar in mm
One day
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)
One day

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Central Hospital, Nancy, France

Investigators

  • Study Director: Bart VANDE VANNET, PhD, Central Hospital, Nancy, France

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 1, 2024

Primary Completion (Estimated)

July 30, 2025

Study Completion (Estimated)

September 30, 2025

Study Registration Dates

First Submitted

February 6, 2024

First Submitted That Met QC Criteria

March 19, 2024

First Posted (Actual)

March 20, 2024

Study Record Updates

Last Update Posted (Actual)

March 28, 2025

Last Update Submitted That Met QC Criteria

March 25, 2025

Last Verified

March 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2024PI003

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Impacted Third Molar Tooth

Clinical Trials on Radiographic measurement

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Djibouti

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe