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Completed

NCT Number: NCT04800003

The Gonial Angle as a Predictive Marker of Mandibular Fossa Depth

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.

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Key information

Conditions

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

Sex eligibility

All sexes

Study type

Observational

Primary location

Ankara University

Ankara, Turkey (Türkiye)

About this study

Gonial angle and fossa depths were determined and evaluated separately for left and right sides. Gonial angle was measured on Cone-beam computed tomography 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. Determination of the submandibular fossa depth was made with 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, and the length of the line drawn at a right angle from the deepest point of the fossa to this line. Measurements were made separately for left and right sides.

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

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

Exclusion criteria

  • Dry mandibles which were dentate in the posterior region

Treatment and study plan

Gonial angle and submandibular fossa depth measurements from CBCT images

Diagnostic Test

CBCT images were obtained from dry human mandibles

Primary outcomes

  1. Gonial angle

    Time frame: 2 months

    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. Submandibular fossa depth

    Time frame: 2 months

    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.

Sponsors and collaborators

Lead sponsor

Ankara University

Other

Registry information

Official study title

The Gonial Angle as a Predictive Marker of Mandibular Fossa Depth on Panoramic Radiographs: A Diagnostic Accuracy Study

Important dates

Study start
2019
Primary completion
2019
Study completion
2019
First posted
Mar 16, 2021
Registry last updated
Mar 16, 2021

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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