Impedance is the ratio of voltage to current in an electrical circuit. The most common causes high shock impedance are lead conductor fracture and calcification often associated with malfunction. We present first two cases isolated from pocket which function normal. Case 1: A 73-year-old male ICM, EF 10%, LBBB, sever COPD Boston biventricular (BiV) ICD 2013 that normalized EF. Shock slowly rose...

We present a unique case of an extensively ossified carcinoma ex pleomorphic adenoma (CXPA) in a 76-year-old man with a five-year history of a slowly growing parotid mass. Fine-needle aspiration of the mass was nondiagnostic. A computed tomography (CT) scan of the lesion revealed a well-circumscribed mass with peripheral calcification. Initial pathological analysis suggested a benign parotid ma...

In orthodontic treatment, teeth are moved in to new positions and relationships and the soft tissue and underlying bone are altered to accommodate changes in esthetics and function. Function is more important than esthetics. The speciality of orthodontics has in addition to its benefits, complications as well as risks associated with its procedures. However the benefits outweigh the risks & com...

The menopause is understood like a menstruation cease, because of sudden fall in hormone production. Generally, the symptoms at this stage are heat waves, lack of vaginal lubrication, loss of skin elasticity, hormonal changes, intensification of bone decalcification and reduction of libido. In order to alleviate these symptoms there are Hormone Replacement Therapies (HRT) that use synthetic dru...

BACKGROUND Using lingual enamel surfaces for bracket placement not only has esthetic advantages, but may also be suitable in terms of reducing frequencies of enamel decalcifications. OBJECTIVE To test the null-hypothesis that there is no significant difference in enamel decalcification or cavitation incidence adjacent to and beneath bracket bases between two lingual multi-bracket (MB) applian...

Increasing atmospheric partial pressure of CO2 (pCO2) is a major threat to coral reefs, but some argue that the threat is mitigated by factors such as the variability in the response of coral calcification to acidification, differences in bleaching susceptibility, and the potential for rapid adaptation to anthropogenic warming. However the evidence for these mitigating factors tends to involve ...

In previously published electron microscopic studies on the organic substance of enamel, the organic matrix was depicted in thin sections as a meshwork of delicate fibrils.1'"i " If one compares these structures with photographs obtained by the replica method using mineralized enamel, the original relationship between the organic and the inorganic components of the enamel is difficult to recons...

Decalcification of enamel during fixed orthodontic appliance treatment remains a problem. White spot lesions are observed in nearly 50% of patients undergoing orthodontic treatment. The use of fluoride-containing orthodontic materials has shown inconclusive results on their ability to reduce decalcification. The aims of this investigation were to compare the levels of Streptococcus mutans (SM) ...