Ashok Balasundaram

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OBJECTIVES To assess the accuracy of NewTom 9000 cone beam CT (CBCT) images for the detection and quantification of periodontal bone defects in three dimensions. METHODS A sample of 146 sites in 5 dry skulls provided the ground truth (GT). Half of the sample had bone loss of at least 3 mm. Two metal spheres at each site ensured correspondence between GT(More)
Objectives. To compare the ability of endodontists to determine the size of apical pathological lesions and select the most appropriate choice of treatment based on lesions' projected image characteristics using 2 D and 3 D images. Study Design. Twenty-four subjects were selected. Radiographic examination of symptomatic study teeth with an intraoral(More)
Synovial chondromatosis is a rare, benign condition that usually affects the larger diarthroidal joints of the axial skeleton. Approximately 120 cases of synovial chondromatosis involving the temporomandibular joint (TMJ) have been reported. People with this condition may present with swelling, pain, intracapsular sounds and limitation of mandibular(More)
Studies on the frequencies of chromosomal aberrations were carried out on 104 spray painters working in automobile body reconditioning, steel furniture making and refrigerator repainting workshops in the metro city, Chennai, of south India. Randomly selected 50 male subjects not connected with this occupation were included as controls in the study.(More)
Cone-beam computed tomography (CBCT) is primarily used for a variety of dental purposes, but it may also yield nondental findings that can have significant implications for patient health. For example, physicians should be aware that CBCT can identify some of the etiopathogenic causes of obstructive sleep apnea, as occurred in the case described in this(More)
PURPOSE The aim was to correlate the level of the inferior alveolar canal on cadaver specimens and as evaluated with three-dimensional radiographic cone-beam computed tomography (CBCT) imaging. METHODS Twenty-one skulls with intact mandibles (42 inferior alveolar canals) were imaged with an I-CAT Cone-Beam 3D Imaging System and multi-planar reformatted(More)
This report describes the use of the combination of 2 technologies (Cone-beam computed tomography and Optical 3-dimensional scan) to maximize accuracy of implant placement in an area where previous implants failed and had to be removed. This report also stresses the increased efficiency of combining technologies to fabricate stereolithographic surgical(More)
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