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The right and left cavitron tip is a set of paired, area specific instruments that are similar to a furcation probe.

What is the percentage of N2O a patient receives when effect is felt at 2 liters of N2O and 6 liters of oxygen?

Which of the following instrument types would be most appropriate for root debridement in the furcation of #14?

All of the following are goals of nonsurgical periodontal therapy except:

 It is a contraindication to use nitrous oxide on a patient with cystic fibrosis.

Which of the following does not contraindicate the use of N2O-O2 sedation?

All patients diagnosed with periodontal disease need to be assigned a stage and grade. As noted above, Susan M. was staged as having stage III periodontal disease. Based on the information provided above, what would be the most appropriate grade you would add to her periodontal diagnosis?

It is not necessary to aspirate on the infiltration injection.

Which injection deposits anesthetic just superior to the mandibular foramen?

Which of the following conditions does not contraindicate the administration of N2O?