The disadvantage of using the largest size image receptor possible to expose a bitewing radiograph is that:
a. unnecessary structures will be imaged.
b. exposure times must be increased.
c. anatomical limitations may hinder ideal placement.
d. it is contraindicated for patients with periodontal disease.
c. The number and size of image receptors to use depends on the type of survey required and the size and shape of the patient's oral cavity. Additional factors to be considered when deciding how many and what size image receptor to select is the length and curvature of the arches, which vary in all individuals.
You might also like to view...
The cellular component of blood that is involved in hemostasis is:
a. Leukocyte b. Erythrocyte c. Thrombocyte d. Hemoglobin
The three main coronary arteries are the aorta, the left main, and the chordae tendonae
Indicate whether the statement is true or false
Long term, bruxism may result in
A) The need to switch to a diet of softer consistency B) Eroded dental crowns C) Flattened dental crowns D) All of these
You are dispatched to a residence for a patient having a seizure. Upon arriving at the scene, you find that the patient, a 39-year-old male, is experiencing a generalized tonic-clonic seizure and is cyanotic. His wife tells you that he has been like this since she called 9-1-1. In addition to protecting the patient from injury, you should:
A: assist his breathing with a bag-mask device, establish vascular access, and administer 5 mg of diazepam. B: apply high-flow oxygen via nonrebreathing mask, place him on his side, and wait for the seizure to stop. C: intubate him to prevent aspiration, establish IV or IO access, and administer 0.1 mg/kg of lorazepam. D: administer 0.5 mg/kg of diazepam rectally, cover him with a blanket, and administer high-flow oxygen.