A child has received a successful inferior alveolar nerve block using 1.5ml of lidocaine 2% with 1:100000 epinephrine. However, during placement of a rubber dam clamp on the first permanent molar, the child complains that the 'tooth ring' is hurting. Which of the following is the most appropriate management?
Anesthetize the long buccal nerve with the remaining lidocaine.
Wait 15 minutes until more profound anesthesia is achieved.
Anesthetize the lingual nerve with the remaining lidocaine.
Proceed with treatment without rubber dam.
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