An unexpected bad result is known as (a[n]):

Every office correspondence should have a current ________

a. date b. signature c. font type d. response

Each of the following statements regarding the use of radiographs during endodontic therapy is true except one. Which one is the exception?

A) Special endodontic image receptor holders are available. B) The bisecting technique is the technique of choice. C) The presence of endodontic instrumentation makes it impossible for a patient to bite down on the biteblock of conventional image receptor holders. D) The avoidance of magnification and distortion is essential.