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Article
Postoperative assessment of dental implants by using multi-slice computed tomography

Authors: Resha J. Al-Sudani --- Lamia Al-Nakib لمياء حامد النقيب --- Shifaa H. Al-Naimi
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2013 Volume: 25 Issue: 4 Pages: 52-55
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Implantology is a fast growing area in dentistry. One of the most common issues encountered in dentalimplantation procedures is the lack of adequate preoperative planning. Conventional radiography may not be ableto assess the true regional three-dimensional anatomical presentation. Multi Slice Computed Tomography providesdata in 3-dimentional format offering information on craniofacial anatomy for diagnosis; this technology enables thevirtual placement of implant in a 3-Dimensional model of the patient jaw (dental planning).Patients, Material and Methods: The sample consisted of (72) Iraqi patients indicated for dental implant (34 male and38 female), age range between (20-70) years old. They were examined during a time period started from December2012 to April 2013. All the patients who subjected to implant treatment depending on the pre-operative panoramicradiograph were referred Al-Kharkh General hospital, spiral CT scan Department, for postsurgical assessmentevaluate the angulation of fixture in relation to the angulation of bone in coronal and sagittal sections by usingMulti-Detector Computed Tomography.Results: The present study showed that the angulation of implant affected by age, sector, and tooth position in thesame jaw, and not affected by gender.Conclusion: Multi-Slice Computed Tomography provides a great understanding about bone angulation, it necessaryas a diagnostic tool for treatment planning pre and post-operatively


Article
Diagnosis and localization of the maxillary impacted canines by using dental multi-slice computed tomography 3D view and reconstructed panoramic 2D view

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Abstract

Background: Diagnosis and treatment planning can be difficult with conventional radiographic methods as the or-thodontic-surgical management of impacted canines requires accurate diagnosis and precise localization of the impacted canine and the surrounding structures. This study was aimed to localize and evaluate weather there is any differences in the diagnostic information provided by multi-slice computed tomography three dimensional volumet-ric CT images and two dimensional reconstructed panorama images (derived from CT) in subjects with impacted maxillary canines.Materials and Methods: Thirty patients including 24 female and 6 male with mean age of 18 years with suspected unilaterally or bilaterally impacted maxillary canines were evaluated on images taken with Brilliance™ 64, Philips mul-ti-detector computed tomography. The spatial relationships of the impacted maxillary canines relative to the adja-cent structures was evaluated using linear and angular measurements, and the adjacent lateral incisor root resorp-tion was assessed with three dimensional and two dimensional visualization software.Results: The inclination of the impacted maxillary canine measured to the midline and to the occlusal plane did not differ significantly when it was evaluated using the two imaging modalities. However, there were significant differ-ences between the 3D and 2D images with respect to the impacted maxillary canine vertical height, bucco-palatal localization, and in detecting the proximity and root resorption of the adjacent lateral incisors.Conclusion: Dental CT volumetric images provide more reliable and accurate information for diagnosing the maxil-lary impacted canine position, inclination, distance from adjacent structures, and detection of lateral incisors rootre-sorption.

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