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P 98<br />

Title<br />

IMAGING TECHNIQuES FOR THE IDENTIFICATION OF THE MANDIbuLAR LANDMARKS<br />

Authors<br />

OzKAN MILOGLu, KENAN CANTEKIN, yASIN yASA, IbRAHIM SEVKI bAyRAKDAR<br />

Affiliations<br />

1 Health Sciences-Department of Mouth, Teeth and Jaw Radiology, Erzurum, TURKEY, 2 Health<br />

Sciences-Department of Pediatric Dentistry, Kayseri, TURKEY, 3 Health Sciences-Department of<br />

Mouth, Teeth and Jaw Radiology, Erzurum, TURKEY, 4 Health Sciences-Department of Mouth,<br />

Teeth and Jaw Radiology, Erzurum, TURKEY<br />

Body<br />

Objectives: The aim of this study w<strong>as</strong> to determine and compare reliabilities of common mandibular<br />

landmarks and to determine the incidence of incisive canal, anterior looping and lingual<br />

foramen in children from panoramic and CBCT images.<br />

Methods: Panoramic and CBCT images from 100 children and adolescent patients were randomly<br />

selected. In order to grade the visibility of mandibular anatomical landmarks, a four-point<br />

rating scale w<strong>as</strong> used.<br />

Results: In panoramic images; the mandibular canal could be observed in 92,5% of the c<strong>as</strong>es,<br />

with a good visibility in 12,0% of the c<strong>as</strong>es. The mental foramen could be observed in 44,5%<br />

of the c<strong>as</strong>es while good visibility w<strong>as</strong> not seen in any c<strong>as</strong>e. Anterior looping of the mental<br />

nerve w<strong>as</strong> present in 16,5% of the c<strong>as</strong>es while good visibility w<strong>as</strong> not seen in any c<strong>as</strong>e. An<br />

incisive canal could be identified in 22,5% of the c<strong>as</strong>es, with only 1,5% showing good visibility.<br />

The lingual foramen could be visualized in 61,0% of the c<strong>as</strong>es, with good visibility in 6%.<br />

In CBCT images; the mandibular canal, the mental foramen and the lingual foramen could be<br />

observed in 100% of the c<strong>as</strong>es, with a good visibility in 51,0%, 98,5% and 45,0% of the c<strong>as</strong>es,<br />

respectively. Anterior looping of the mental nerve w<strong>as</strong> present in 26% of the c<strong>as</strong>es, with 2%<br />

having good visibility. An incisive canal could be identified in 49,5% of the c<strong>as</strong>es, with only<br />

75% showing good visibility.<br />

Conclusion: This study confirms the applicability of CBCT images for visualization of critical<br />

structures in children.<br />

Keywords<br />

panoramic radiography,cone beam computed tomography,anatomical landmark<br />

POSTerS<br />

213

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