Zero Echo Time MR for the Assessment of Maxillary Sinus and Dental Regions
ConditionEdentulous Alveolar Ridge
Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18+
SponsorHacettepe University
About this trial
The aim of this study is to evaluate the efficacy of zero echo time magnetic resonance imaging (ZTE MRI) as an ionizing radiation-free diagnostic method to evaluate both hard and soft tissues and maxillary sinus region before dental implants in the posterior maxillary region.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Missing teeth in the maxillary premolar and molar regions
Cone-beam computed tomography images of the tooth-deficient area
Do not have any systemic disease that may affect periodontal tissues (diabetes, rheumatoid arthritis, etc.)
Over the age of 18
Disqualifiers
All maxillary teeth missing
With active periodontitis
Under 18 years of age
Individuals who did not approve the informed consent form.
Trial population
Patients with missing teeth in the maxillary premolar and molar regions who applied to Faculty of Dentistry Department of Periodontics for dental implant treatment and who had cone beam computed tomography images for pre-surgical bone evaluation.
Trial design
Design model
Case-only
Time perspective
Cross-sectional
Treatments tested in this trial
Not listed
Trial groups
No trial groups listed
Trial outcomes
Primary outcomes
1
Evaluation of maxillary sinus area with ZET-MR
These maxillary sinus evaluations will be conducted on both ZTE MR and CBCT images: 1. Thickness of the sinus membrane in millimeters. 2. Shape of thickening (dome shape or flat). 3. Presence and characteristics of septa in the maxillary sinus. To evaluate the direction of the septum, the angle with the vertical axis will be measured; then the direction of the septum will be classified as vertical (\<30°), oblique (between 30° and 60°), and horizontal (between 60° and 90°). In terms of morphology, if the septum extends from one sinus wall to the opposite sinus wall, it will be classified as 'complete'; if it does not reach the opposite wall, it will be considered 'partial'. 4. Presence and variations of the posterior superior alveolar artery (intraosseous or below the membrane or on the outer cortex of the lateral sinus wall) 5. Diameter of the artery and distances to the sinus floor and alveolar crest in millimeters. 6. Thickness of the lateral sinus wall in milimeters.
Time frame
Baseline-18 months2
Evaluation of alveolar bone dimensions in maxillary premolar and molar areas with ZET-MR, CBCT and directly
These assessments will be conducted on both preoperative CBCT and zero echo time MR images, as well as directly during surgery using a caliper. * Repeated bone thickness measurements at 1, 3, 5, 7, and 9 mm points relative to the crest top * The bone height from the crest top to the sinus floor at 5 mm mesiodistally from the last tooth
Time frame
Baseline-18 months3
Evaluation of soft tissue for dental implant planning Evaluation of gingival tissue dimensions in maxillary premolar and molar areas with ZET-MR and directly during surgery
Gingival thickness measurements will be performed at 2, 4, and 6 mm apically from the alveolar crest through to apical area with three different methods: 1. ZET-MR images in milimeters. 2. Intraoral scanner images overlapped with CBCT data in milimeters. 3. Clinically during dental implant surgery with a periodontal probe after local anesthesia in milimeters.
Time frame
Baseline -18 monthsSponsors and contacts
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Source ClinicalTrials.gov