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National Journal of Maxillofacial Surgery
 
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REVIEW ARTICLE
Year : 2013  |  Volume : 4  |  Issue : 1  |  Page : 2-6

Cone beam computed tomography in oral implants


Department of Oral Medicine and Radiology, KIMSU School of Dental Sciences, Karad, Maharashtra, India

Correspondence Address:
Syed Parveez Ali
Ummer Khyam Road, Eidgah, Tilak Nagar, Mysore - 570 021, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0975-5950.117811

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Cone beam computed tomography (CBCT) scanners for the oral and maxillofacial region were pioneered in the late 1990s independently by Arai et al. in Japan and Mozzo et al. CBCT has a lower dose of radiation, minimal metal artifacts, reduced costs, easier accessibility, and easier handling than multislice computed tomography (MSCT); however, the latter is still considered a better choice for the analysis of bone density using a Hounsfield unit (HU) scale. Oral implants require localized area of oral and maxillofacial area for radiation exposure; so, CBCT is an ideal choice. CBCT scans help in the planning of oral implants; they enable measurement of the distance between the alveolar crest and mandibular canal to avoid impingement of inferior alveolar nerve, avoid perforation of the mandibular posterior lingual undercut, and assess the density and quality of bone, and help in planning of the oral implant in the maxilla with special attention to the nasopalatine canal and maxillary sinus. Hence, CBCT reduces the overall exposure to radiation.


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