Three-dimensional Analysis of Root Canal Curvature and Direction of Maxillary Lateral Incisors by Using Cone-beam Computed Tomography

Methods for measurement of root canal curvature: a systematic and critical review

“…Amongst the component studies, only two described using CBCT as an image resource (Estrela et al 2008, Choi et al 2015. Lastly, some studies used methods originally proposed for lCT to measure curvatures in CBCT, thus were not considered novel (Michetti et al 2010, Park et al 2013.…”

Three‐dimensional modelling and concurrent measurements of root anatomy in mandibular first molar mesial roots using micro‐computed tomography

“…Then, Park et al . () measured 3D curvatures in maxillary lateral incisors using Kappa with cone‐beam CT.…”

“…Park et al (2009) analysed additional canal configurations and curvatures in maxillary first molar mesiobuccal roots using Kappa with lCT. Then, Park et al (2013) measured 3D curvatures in maxillary lateral incisors using Kappa with conebeam CT.…”

Continuous Measurement of Three-Dimensional Root Canal Curvature Using Cone-Beam Computed and Micro-Computed Tomography: A Comparative Study

“…Another approach was the determination of the radius of curvature, as a circular approximation of the root canal's centre line from two-as well as three-dimensional images (compare Reference [7]). Peters et al [8], Lee et al [9,10], Park et al [11] and Dannemann et al [12] measured the curvature from three-dimensional (3D) centre lines and obtained the continuous root canals curvature along the canal length. This promising approach enabled a reliable quantification of curvature for root canals which were significantly curved in the buccolingual as well as mesiodistal direction running from the apical foramen to the floor of the pulp chamber.…”

“…Most of the studies used the centre of gravity [8,12,[14][15][16]. Other approaches were the usage of the intersection point of the root canal's major and minor axis [9][10][11], the manual detection of centre points with the three-dimensional image data [17] or their evaluation of mesiodistal and buccolingual two-dimensional (2D) radiological views [18]. However, to obtain correct measurements, a three-dimensional centre line is required [8][9][10][11][12][13][14][15]17,19].…”