It was with great interest that we read the recently published artic1e by de Rubens Figueroa et al1 in REVISTA ESPAÑOLA DE CARDIOLOGÍA. The article contained a report that the most frequently observed isolated cardiac defects in Mexican children with Down syndrome are atrial septal defects and ventricular septal defects. This observation, which has been described previously,2 contrasts with rep...

UNLABELLED The search for new instruments to promote an appropriate cervical preparation has led to the development of new rotary instruments such as TripleGates. However, to the best of the authors' knowledge, there is no study evaluating TripleGates effect on the "risk zone" of mandibular molars. OBJECTIVES The aim of this study was to evaluate the effects of a crown-down sequence of Gates-...

During prolonged rotation about a tilted yaw axis, often referred to as off-vertical axis rotation (OVAR), a percept of being translated along a conical path slowly emerges as the sense of rotation subsides. Recently, we found that these perceptual changes are consistent with a canal-otolith interaction model that attributes the illusory translation percept to improper interpretation of the amb...

LE COUILLARD.-Ionisation dans les sclerites (These de Paris, 1933). LEDUc.-Introduction des substances medicamenteuses dans la profondeur-des tissue par le courantelectrique, A nn. THIS ihteresting case of injury to the visual pathway presented a difficult problem' in localisation and in pathology. I can find no case quite comparable to it in the literature, and it has the added advantage that ...

BACKGROUND AND OBJECTIVES The aim of our study was to evaluate postoperative mastoid aeration according to the preoperative middle ear disease and investigate the factors affecting it. SUBJECTS AND METHODS We retrospectively reviewed the high-resolution computed tomography (CT) scans of temporal bones that were taken 1 year after surgery. The postoperative mastoid aeration was evaluated accor...

background and aims. during root canal preparation, debris extruded beyond the apical foramen may result in periapical inflammation and postoperative pain. to date no root canal preparation method has been developed that extrudes no periapical debris. the purpose of this study was to identify a system leading to minimal extrusion of debris from the apical foramen. the study was conducted to com...

OBJECTIVES This study aims to compare the hearing outcomes after canal wall up mastoidectomy (CWUM) and canal wall down mastoidectomy (CWDM). PATIENTS AND METHODS Ninety-two patients (74 males, 18 females; mean age 30.1 years; range 9 to 67 years) who were diagnosed with chronic suppurative otitis media (CSOM) between January 2009 and May 2011 were enrolled in this retrospective study. Based ...

Aims Since the inception of the cleaning and shaping concept, the use of instruments and chemicals has remained as the central paradigm of the root canal therapy. However, cleaning and shaping the root canal space adequately is a well-known difficult task, particularly in root canal systems with intercanal connections, isthmuses, and fins. Recently, micro-computed tomography (micro-CT) technolo...