What is the most likely reason that overlapping occurs even if the image receptor is correctly positioned parallel to the teeth of interest and the central ray is accurately directed through the appropriate embrasure?
What will be an ideal response?
If the image receptor is correctly positioned parallel to the teeth of interest and the central ray is accurately directed through the appropriate embrasure, then any overlapping of other adjacent teeth on the image that occurs is usually attributed to crowded or malaligned teeth. Crowded or malaligned teeth will most likely require additional exposures to achieve a clear view of all proximal surfaces.
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The study of factors that influence the frequency, distribution, and causes of injury, disease, and other health-related events in a population is:
a. anthropology. c. epidemiology. b. sociology. d. pathology.
A patient is being evaluated for readiness to wean from mechanical ventilation. The values of which of the following mechanical factors would tend to predict successful liberation from the ventilator? I. minute ventilation:greater than 10 L/minute II. vital capacity:greater than 5 ml/kg III. maximum inspiratory pressure: less than 25 cm H2O IV. RSBI: less than 105
A. II, III only B. III, IV only C. I, II, IV only D. II, III, IV only