The Journal of the American Dental Association
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Sudden cardiac arrest can strike anyone, anywhere and at any time, often without warning. Reported survival rates for cardiac arrest with ventricular fibrillation are low: from 3 to 10 percent. Studies have shown that rapid defibrillation after out-of-hospital cardiac arrest with ventricular fibrillation is the most important determinant of survival. ⋯ It provides step-by-step verbal instructions on how to perform cardiopulmonary resuscitation, or CPR. The HeartStart FR2+ Defibrillator is designed for first responders, such as flight attendants, nurses, police officers and designated workplace responders who participate in regular training. Each HeartStart defibrillator comes with a nonrechargeable long-life battery, two sets of adult pads and complete instructions for use.
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Randomized Controlled Trial Comparative Study Clinical Trial
Injection pain: comparison of three mandibular block techniques and modulation by nitrous oxide:oxygen.
The authors conducted this study to compare the pain on injection of the three mandibular block techniques and to determine the effect that the delivery of nitrous oxide:oxygen, or N2O:O2, had on this pain. ⋯ The decision to select one of the three mandibular block techniques should be based on factors other than pain on injection. N2O:O2 reduces pain on the first injection only.
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To achieve profound dental local anesthesia, it is necessary for the dentist to have a thorough knowledge of the details of sensory innervation to the maxilla and mandible. Since the early 1970s, dentistry has experienced a resurgence of interest in the neuroanatomical basis of local anesthesia, resulting in numerous scientific reports on the subject. ⋯ An understanding of the potential variations in innervation should help the dentist improve his or her ability to induce profound local anesthesia.