Different Maxillary Sinus 3D Shapes Assessment Using CBCT Volumetric Segmentation

Study Overview
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Brief Summary
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the study aims to assist the different 3D shapes of maxillary sinus in adult individuals among Egyptian population,The data collection will be obtained from the data base available at the department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Cairo University. CBCT images will be obtained from Egyptian patients who were referred to the CBCT unit in oral and maxillofacial radiology department for different purposes. The following radiographic examination will be done in Oral and Maxillofacial Radiology Department, Faculty Dentistry, Cairo University. semiautomated segmentation will be performed for the maxillary sinus in both side and then linear and 3D volume will be assessed for each sinus.

Official Title
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Different Maxillary Sinus 3D Shapes Assessment Using CBCT Volumetric Segmentation: A Cross Sectional Study

Conditions
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Cone-beam Computed Tomography, Maxillary Sinus, Anatomical Variations

Intervention / Treatment
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* Radiation: cone beam computed tomography


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: CBCT scans of adult Egyptian patients, males and females, with age range between 18 and 50 years old. Patients will be divided into two age groups (group 1 less than or equal 30 years old, group2 more than 30 years old). CBCT scans of patient without previous orthodontic treatment. CBCT scans without any other treatment that might interfere with the natural course of maxillomandibular growth and development. Exclusion Criteria: -Scans with maxillary pathologies like (tumors, odontogenic lesions, bone lesions). Patients with traumatic injuries or fractures affecting the maxillary sinus. Patients with missing upper premolar or molar teeth in one side or both sides. Patients with skeletal asymmetries, craniofacial traumas and developmental anomalies such as palatal cleft. Images of low-resolution quality. Distortion of images or presence of any artifacts.

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 50 Years

Sexes Eligible for Study
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All

Study Plan
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How is the study designed?
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Arms and Interventions

| Intervention/Treatment |
| --- |
|Radiation: cone beam computed tomography|cone beam computed tomography|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Assessment of different volumetric 3D shapes of maxillary sinus | Assessment of different volumetric 3D shapes of maxillary sinus | 1 year | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Symmetrical assessment of maxillary sinus volumetric 3D shape in both sides in the same individual | Symmetrical assessment of maxillary sinus volumetric 3D shape in both sides in the same individual | 1 year | 
| Maxillary sinus volumetric 3D Shape with sex variables | Maxillary sinus volumetric 3D Shape with sex variables | 1 year |