Application of microcomputed tomography for quantitative analysis of dental root canal obturations

Abstract

Within the limitations of this study, our results indicate that microtomography, with proposed semi-automatic algorithm, is a useful tools for three-dimensional quantitative evaluation of dental root canal fillings. In canals filled with thermoplastic gutta-percha and Tubli-Seal, voids at the interface between the filling and canal dentine deserve special attention due to of their periapical location, which might promote apical microleakage. Further studies might help to elucidate the clinical relevance of these results.

Dens invagination and root dilaceration in double multilobed mesiodentes in 14-year-old patient with anorexia nervosa

“…Rajasekharan et al [18] proved that CBCT was not sufficient to detect the point of entry of irritants from oral cavity into the invagination or to indicate the proximity of invagination to the pulp chamber, but it was possible on microCT scans. Our study supports other reports on higher accuracy of microCT in comparison to digital radiographs, CT, CBCT and magnetic resonance imaging scans for the evaluation of dental abnormalities [13,16,18]. In our case, the radiopaque tissue of unknown origin was found inside the type III invagination.…”

Evaluation of microleakage in class V composite restorations using dye penetration and micro-CT

“…Therefore, the use of a micro-CT may not become a general tool to evaluate marginal integrity of present resin composites but an additional tool valuable in the future to address specific questions, such as volumetric changes associated with new types of restorative materials. Further research areas are the investigation of gap formations in ceramic restorations [23]; comparisons among different parameters such as restorative material, C-factor, and cavity design [27]; the investigation of root canal fillings [40][41][42], glassfiber posts [43], and implants in connection with periimplantitis [44]; and the adaptation of ceramics-fixed partial dentures [45,46].…”

Micro‐computed tomographic assessment of quality of obturation in the apical third with continuous wave vertical compaction and single match taper sized cone obturation techniques

“…In addition, it has also been documented that calculation of volume in a 3D plane provides more accurate assessment of voids in root canals than histologic assessment (Jung et al ., ; Keles et al ., ; Kierklo et al ., ). Therefore, micro‐CT analysis continues to be a valuable investigative tool for assessing volumetric measurements in many fields of dentistry including endodontics (Jung et al ., ; Keles et al ., ; Kierklo et al ., ).…”

“…Micro-computed tomography (Micro-CT) imaging is a modern and advanced imaging technology that allows assessment of samples in a three-dimensional (3D) plane (Kierklo et al, 2014). In comparison to conventional imagine techniques, such as scanning electronic microscopy, confocal microscopy, and stereomicroscopy, micro-CT imaging offers advantages including (a) 3D reconstructions of sample/s without the requirement of sectioning the samples; and (b) the possibility of repeated scanning and the manipulation of image using specific softwares (Jung et al, 2005;Kierklo et al, 2014).…”