The Gonial Angle as a Predictive Marker of Mandibular Fossa Depth

NCT04800003 | Completed

• 1 other identifier: 13/1
• Study Type: observational
• Target: 74
• Locations: 1 country
• Sites: 1

Brief Summary

The aim of the study is to evaluate the relationship between submandibular fossa depth and gonial angle measurements in cone beam computed tomography examinations in terms of dental implant applications. Cone-beam computed tomography images of 51 dry human mandibles were included in the study.

Conditions

Dental Implants; Submandibular Fossa Depth; Gonial Angle; Cone-beam Computed Tomography; Panoramic Radiography

Outcome Measures

Primary Outcomes (2)

• Gonial angle

  Gonial angle and fossa depths were determined and evaluated separately for left and right sides. Gonial angle was measured on CBCT images as the angle between the tangent line drawn posterior to the border of the ramus of the mandible and the tangent line drawn to the lower border of the mandible.

  2 months

• Submandibular fossa depth

  A line was drawn to connect the most dislocated upper and lower points on the inner surface of the mandible in the coronal plane sections obtained with CBCT, and the length of the line drawn at a right angle from the deepest point of the fossa to this line was measured as the depth of the submandibular fossa. These measurements were noted as 'millimeters' separately for left and right sides.

  2 months

Study Arms (1)

Dry human mandibles, selected for evaluation

51 dry mandibles with posterior region endetulism and sufficient bone integrity to make the necessary measurements were evaluated. CBCT images of the 51 dry human mandibles included in the study were obtained using the Planmeca Promex-3D (Helsinki, Finland) device in our faculty Dentomaxillofacial Radiology department. Gonial angle was measured on CBCT images as the angle between the tangent line drawn posterior to the border of the ramus of the mandible and the tangent line drawn to the lower border of the mandible. While determining the depth of the submandibular fossa, a line was drawn to connect the most dislocated upper and lower points on the inner surface of the mandible in the coronal plane sections obtained with CBCT, and the length of the line drawn at a right angle from the deepest point of the fossa to this line was measured as the depth of the submandibular fossa.

Diagnostic Test: Gonial angle and submandibular fossa depth measurements from CBCT images

Interventions

Gonial angle and submandibular fossa depth measurements from CBCT images DIAGNOSTIC_TEST

CBCT images were obtained from dry human mandibles

Dry human mandibles, selected for evaluation

Eligibility Criteria

• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

In the present diagnostic accuracy study, 75 dry human mandibles were used. 24 dry human mandibles with insufficient bone integrity to make the necessary measurements or which were dentate in the posterior region were not included in the study and the study was carried out with 51 dry mandibles.

You may qualify if:

• Dry mandibles with sufficient bone integrity to make the necessary measurements

You may not qualify if:

• Dry mandibles which were dentate in the posterior region

Sponsors & Collaborators

• Ankara University: lead

Study Sites (1)

Ankara University

Ankara, Turkey (Türkiye)

Location

Study Design

• Study Type: observational
• Observational Model: CASE ONLY
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Associate Professor

Study Record Dates

• First Submitted: March 15, 2021
• First Posted: March 16, 2021
• Study Start: July 1, 2019
• Primary Completion: August 31, 2019
• Study Completion: August 31, 2019
• Last Updated: March 16, 2021

Record last verified: 2021-03

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)