5. Which one of the false negative responses from electric pulp testing? a. Poor contact of pulp tester to tooth b. Patient's high anxiety c. Ineffective tooth isolation

The correct answer is:<br /><br />a. Poor contact of pulp tester to tooth<br /><br />Explanation:<br /><br />False negative responses in electric pulp testing can occur due to several factors, including:<br /><br />a. Poor contact of pulp tester to tooth: If the pulp tester does not have proper contact with the tooth, it may not accurately detect the presence of a pathological pulp condition, leading to a false negative result.<br /><br />b. Patient's high anxiety: High levels of anxiety in the patient can affect their perception of pain and may lead to false positive responses, rather than false negative responses.<br /><br />c. Ineffective tooth isolation: Ineffective tooth isolation can result in inaccurate testing and may lead to false positive or false negative responses, depending on the specific circumstances.<br /><br />Therefore, the correct answer is a. Poor contact of pulp tester to tooth.