Root canal irrigants play an important role in the success of root canal treatment. As the major objective in root canal treatment is to disinfect the entire root canal system, it requires that the pulpal contents be eliminated as sources of infection. This goal may be accomplished using mechanical instrumentation and chemical irrigation, in conjunction with medication of the root canal between...

OBJECTIVE The aim of this study was to evaluate the anatomy of the nasopalatine canal in a Lebanese population using cone-beam computed tomography (CBCT) technology. MATERIALS AND METHODS CBCT images of 63 Lebanese adult patients were included in this study. The length, shape, diameter of the oral opening corresponding to the incisive foramen and inclination in relation to the hard palate of ...

Mandibular premolars are known for their aberrant root canal variations. This is because, they are highly unpredictable and often present with a wide variety of morphological variations. Slowey et al. reported that these root canal aberrations in mandibular premolars present an endodontic challenge to the dental practitioners.Hence, these teeth may require skillful and careful root canal prepar...

OBJECTIVE The objective was to study the root canal morphology of South Asian Indian Maxillary molars using a tooth clearing technique. MATERIALS AND METHODS Hundred teeth each comprising of first, second, and third molars collected from different dental schools and clinics in India were subjected to standard dye penetration, decalcification and clearing procedure before being studied. RESU...

Vertebroplasty, a surgical procedure developed by Galibert and Deramond in 1987, involves the injection of bone cement into a collapsed vertebral body. The main indications of vertebroplasty have been extended to painful osteoporotic compression fractures, vertebral myelomas, and metastases and so on. Several previous studies have evaluated the radiological changes in vertebral body height, kyp...

Human ear canals cannot be measured directly with existing general measurement tools. Furthermore, general non-contact optical methods can only conduct simple peripheral measurements of the auricle and cannot obtain the internal ear canal shape-related measurement data. Therefore, this study uses the computed tomography (CT) technology to measure the geometric shape of the ear canal and the sha...

This study evaluated the influence of tooth embedding media on the accuracy ofan electronic apex locator. The root canal length of 20 human mandibular canines was measured by inserting a 15 K-file into the root canal up to the apical foramen. The distance was measured with a digital caliper. The embedding media evaluated were alginate, saline, floral foam or gauze soaked in saline. Electronic r...

Canal scheduling is an important activity that significantly influences production of crops compared to other aspects of agriculture. Irrigation canal scheduling is the activity of preparing an optimal schedule of outlets on supply canal as per need of user, subject to canal system constraints. In this paper, the problem of optimal operational scheduling of irrigation canal with provision to op...

The envelope of a one-parameter set of spheres with radii r(t) and centers m(t) is a canal surface with m(t) as the spine curve and r(t) as the radii function. This concept is a generalization of the classical notion of an offset of a plane curve. In this paper, we firstly survey the principle geometric features of canal surfaces. In particular, a sufficient condition of canal surfaces without ...

The term stenosis means a narrowing of the calibre of an orifice or a tube. It causes a decreased flow of fluids or gasses within the tube or compression of its solid contents (Verbiest 1976). In the case of the spinal canal, the term indicates a pathological condition causing compression of the contents of the canal, particularly the neural structures. If compression does not occur, the canal ...