The clinician has reached the deposition site for an inferior alveolar injection. In order to perform an aspiration test, the clinician pulls backwards with his or her thumb and is unable to aspirate. The clinician tells the patient that he or she needs to withdraw the syringe and then carefully withdraws.
-Provide possible reasons the clinician was unable to aspirate.

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The clinician has reached the deposition site for an inferior alveolar injection. In order to perform an aspiration test, the clinician pulls backwards with his or her thumb and is unable to aspirate. The clinician tells the patient that he or she needs to withdraw the syringe and then carefully withdraws.
-Provide possible reasons the clinician was unable to aspirate.

The Clinician Has Reached the Deposition Site for an Inferior