Upper Airways Cephalometric Measures Compared to Skeletal Class and Divergence

NCT05725980 | Completed

• 1 other identifier: 2023-AIRWAYSCLASS
• Study Type: observational
• Target: 120
• Locations: 1 country
• Sites: 1

Brief Summary

The aim of the present study is to investigate the baseline upper airways dimensions in adult patients belonging to all skeletal classes

Conditions

Skeletal Malocclusion

Keywords

Upper airways dimensions; Skeletal Class; Skeletal Divergency

Outcome Measures

Primary Outcomes (10)

• NL (nasopharynx length)

  Distance between Ad1 and PNS

  Baseline

• PD (nasopharynx depth)

  Line parallel to bispinal plane and connecting PNS and the posterior margin of pharynx

  Baseline

• SPAS (Superior Pharyngeal Airway Space)

  From the half of the posterior wall of soft palate (MMP) perpendicularly to the closest point on the posterior of the posterior wall of the pharynx

  Baseline

• MAS (Mean Airway Space)

  U1-U2 distance

  Baseline

• PAS min (Pharyngeal Airway Space minimum)

  T1-T2 distance along Go-B parallel line

  Baseline

• IAS (Inferior Airway Space)

  From the superior margin of the epiglottis (Ph1) to the closest perpendicular point on the posterior wall of the pharynx

  Baseline

• LPW (Lateral Pharyngeal Wall)

  Distance between epiglottic vallecula (Va1) and the posterior wall of pharynx perpendicular to Va1

  Baseline

• PT

  Soft palate thickness

  Baseline

• PL

  Soft palate length

  Baseline

• MPH (Mandibular Plane - Hyoid bone)

  Distance from the most anterior and superior point of the hyoid bone (H1) perpendicular to mandibular plane

  Baseline

Study Arms (3)

Skeletal Class I patients

Patients from this group present 0° \< ANB \< 4° on the cephalometric tracing.

Diagnostic Test: Cephalometric analysis

Skeletal Class II patients

Patients from this group present ANB \> 4° on the cephalometric tracing.

Diagnostic Test: Cephalometric analysis

Skeletal Class III patients

Patients from this group present ANB \< 0° on the cephalometric tracing.

Diagnostic Test: Cephalometric analysis

Interventions

Cephalometric analysis DIAGNOSTIC_TEST

Cephalometric analysis will be performed evaluating upper airways landmarks.

Skeletal Class I patients; Skeletal Class II patients; Skeletal Class III patients

Eligibility Criteria

• Age: 18 Years - 50 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)
• Sampling Method: Probability Sample

Study Population

Patients referring to the Unit of Orthodontics and Pediatric Dentistry for orthodontic consultation.

You may qualify if:

• Patients with permanent dentition
• Caucasian patients
• Patients with one lateral cephalometric digital radiograph executed in Natural Head Position (patients were asked to keep the teeth in contact and the lips relaxed).

You may not qualify if:

• maxillo-facial traumas
• nasopharyngeal pathologies
• craniofacial dysmorphisms
• orthognatic surgery
• radiographs not performed in Natural Head Position
• unsuitable radiographs

Sponsors & Collaborators

• Andrea Scribante: lead

Study Sites (1)

Unit of Orthodontics and Pediatric Dentistry - Section of Dentistry - Department of Clinical, Surgical, Diagnostic and Pediatrics - University of Pavia

Pavia, Lombardy, 27100, Italy

Location

Study Officials

• Andrea Scribante, DDS, PhD, MS

  University of Pavia

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: RETROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR INVESTIGATOR
• PI Title: Associate Professor, Principal Investigator

Study Record Dates

• First Submitted: February 2, 2023
• First Posted: February 13, 2023
• Study Start: February 12, 2023
• Primary Completion: March 20, 2023
• Study Completion: March 26, 2023
• Last Updated: March 28, 2023

Record last verified: 2023-03

Data Sharing

• IPD Sharing: Will not share

Locations

IT (1)