Major advances in our understanding of the mechanisms involved in chronic anal fissure have allowed the introduction of many new medical therapies for this condition. The literature about current treatment modalities licensed for anal fissure and those novel therapies still under evaluation has been reviewed. These new treatments are examined in the context of traditional surgical management of...

Retinotopic mapping strategies similar to those used for invasive electrophysiological studies to identify multiple visual areas in monkeys have been adapted for noninvasive studies in humans, using magnetic recordings of brain activity in conjunction with anatomical magnetic resonance imaging. The retinotopic organization of the primary visual area (V1) in the left hemisphere of human subjects...

objective: lack of a dental material with optimal adhesion and sealability is an important challenge in modern dentistry leading to marginal leakage. there are controversies on the necessity of enamel preparation in pit and fissure sealant therapy and its effect on decreasing the microleakage therefore, the present in vitro study aimed to assess the amount of microleakage with and without ename...

An investigation of pit and fissure sealant retention in 1,871 children in the Head Start program was conducted in Tennessee in September 1985 to determine the retention of the sealant after application to the occlusal surfaces of primary molars of 3- and 4-year-old children. The investigation shows pit and fissure sealants are retained on primary molars at a rate comparable to that expected on...

A 73-year-old man referred for parkinsonism related a history of Bell palsy. The figure demonstrates that the right side of the face has some of the typical characteristics of a peripheral facial palsy, including flattening of the nasolabial fold and widening of the palpebral fissure. But was that the side affected? See the accompanying videotape for the answer. Figure. Flattening of the right ...

Anatomic, imaging, and lesion studies suggest that insular or parietal opercular cortical structures mediate the sensation of nonpainful cold. We have now tested the hypothesis that cold stimuli evoke electrical responses from these cortical structures in humans. We recorded the response to cold stimuli from electrodes implanted directly over parasylvian cortex for the investigation of intracta...

To determine whether the medical Treatment of anal fissure can be an effective alternative for surgery Methods: Retrospectively, we randomly selected 190 Patients being treated for anal fissure between the years 2005-2010 in 3 equal groups: group A: Patients who received medical treatment with topical nitroglycerin, group B: Patient treated with topical diltiazem, and group C: Patients underwen...

This paper is to develop a segmentation system in order to assist the surgeons for the treatment of certain illness such as lung cancer, and tumours.Lung cancer is one of the most frequently occurring cancer and it has a very low survival .Computer Aided Diagnosis (CAD) helps reducing the burden of radiation and improving the accuracy of abnormality detection during CT image interpretation. The...

In neurosurgery, opening a brain fissure allows an operator to access to the basis cranii and to treat a disease part safely, but the operator is required highly sophisticated techniques. In order to develop a neurosurgery simulator enabling surgeons to train themselves for opening a brain fissure procedure, it is required to detect collision between a thin instrument model and a deformable bra...

OBJECTIVE The aim of this study was to evaluate the retention of different pit and fissure sealants on the first permanent molars over a period of one year . MATERIALS AND METHODS In this study, a total of 40 children with all first permanent molars erupted received four different pit and fissure sealants. The children were evaluated at 6 and 12 months. RESULTS The data was subjected to Chi...