Maxillary and mandibular interroot distance analysis by metric measurement on Cone-Beam Computed Tomography (CBCT) images

Abstract

Introduction: The advent of cone beam CT (CBCT) as a relatively low-dose 3-D dental imaging technology has improved both diagnostic accuracy and implant planning. CBCT images enable clinicians to discuss the patient-specific clinical scenario while presenting an individualized treatment plan. Goal: To examine the measurements of maxillary and mandibular interroot distance on the CBCT images in a Mongolians. Material and methods: The study materials were obtained from the Department of Radiology of School of Dentistry, MNUMS. All subjects (males and females) were diagnosed as “normal” according to specified criteria and with no history of orthodontic treatment. A total 54 adults were chosen for measurements of 54 maxillae and mandibles. Measurements of interradicular bone thickness at the vertical levels 3, 5 and 7 mm of were made by using OnDemand 3D program on the CT axial images. Results: In the maxilla, the greatest interroot distance was observed between the canine and the first premolar, the first premolar and second premolar at the 7 mm level from the CEJ. In the mandible, the greatest interroot distance was the greatest between the first and second premolar than the first, second and third molars at 7 mm from the CEJ. Conclusion: In the maxilla, the greatest interroot distance was observed between the canine and the first premolar, the first premolar and second premolar at the 7 mm level from the CEJ. In the mandible, the greatest interroot distance was the greatest between the first and second premolar than the first, second and third molars at 7 mm from the CEJ.