Application of cone beam volumetric tomography in endodontics

Abstract

In a 2008 article on cone beam volumetric tomography (CBVT) and dentoalveolar applications, Tyndall and Rathore wrote: 'It is in the area of endodontic applications that the literature has proved most fruitful to date.' This statement is even truer today than in 2008. A review of the literature has demonstrated that, in many cases, CBVT is more efficacious than traditional forms of 2-D imaging. Endodontic applications of CBVT include the diagnosis of periapical lesions due to pulpal inflammation, identification and localization of internal and external resorption, the detection of vertical root fractures, the visualization of accessory canals, and elucidation of the causes of non-healing endodontically treated teeth. Prior to 2008, most published articles on CBVT applications in endodontics were either case reports or in vitro studies. Since that time more well designed clinically related scholarly activity has been published. This article attempts to survey the field of CBVT applications in endodontics and provide the readers with an overview of what has been found. The authors hope that this knowledge will form a foundation for appropriate clinical decision making with specific reference to selection criteria for the endodontic applications of CBVT.Keywords: Endodontics, radiography, cone beam volumetric tomography.Abbreviations and acronyms: ALARA = As Low As Reasonably Achievable; CBVT = cone beam volumetric tomography; FOV = field of view; MB2 = second mesiobuccal; MDCT = multidetector CT; VRF = vertical root fracture.

Treatment of External Root Resorption Including Crown and Root Sections: Two Years Follow-up of a Case Report

“…18 KIBT iç ve dış kök rezorpsiyonunun belirlenmesi ve lokalizasyonunda başarıyla kullanılmaktadır. [21][22][23] Bu olguda, KIBT kullanılarak lezyonun yeri ve konumu hakkında detaylı bilgiler elde edilmiş ve bu bilgiler ışığında kök kanal tedavisi yapılmasına, kök yüzeyindeki defektin flep kaldırılarak restore edilmesine karar verilmiştir.…”

A Rare Case of ''Double Teeth'' in Permanent Dentition

“…[17][18][19] A way to overcome such limitations is cone beam-computed tomography imaging technique which produces accurate 3-D images of the teeth and the surrounding dentoalveolar structures. 20,21 According to Shah et al, double teeth assessment should include the use of cone beam computed tomography as an imaging technique. 22 Three-dimensional dental CBCT has been shown to achieve good imaging quality with a lower radiation exposure than that of conventional CT. Three-dimensional imaging allows evaluation of the anatomical relationship of the double teeth to anatomical structures in any plane the clinician wishes to view.…”

Cone beam computed tomography: Adding three dimensions to endodontics

“…CBCT has much lower eff ective dose of radiation when compared with traditional medical CT. CBCT dosages are largely determined by FOV, exposure beam type, technique settings (mA, kVp), beam geometry and amount of basis projections. [5] Published data on eff ective dose gives an indication of the radiation exposure level that is detrimental to health. Although there is a signifi cant reduction in radiation dose with CBCT, it is important to follow the principles of as low as reasonably achievable, like any other dental imaging.…”

“…[4] Hounsfi eld used image reconstruction developed by Alan Cormack for his invention in 1960's. [5] Using cone beam technology, a new volumetric CT machine was introduced by Mozzo et al in 1998 for maxillofacial imaging. [6] In 2001, the fi rst CBCT unit for dental use was approved by the Food and Drug Administration (FDA) in the United Statesthe New Tom DVT 9000 (Quantitative Radiology srl, Verona, Italy).…”