Local Infiltration of the Maxillary Primary and Permanent Incisors and Canines


  • Retract the cheek so the tissue of the mucobuccal fold is taut.
  • Apply topical anaesthetic.
  • Orient the needle bevel toward the bone.
  • Penetrate the mucosa labial to the tooth to be treated close to the bone at the mucogingival margin with the syringe parallel to the long axis of the tooth. Advance the needle 2mm approximating the apex of the root.
  • Aspirate.
  • Inject a ¼-½ cartridge of anaesthetic.
maxillary canine injection
  • If it is necessary to anaesthetize an adjacent tooth, partially withdraw the needle and turn the needle in the direction of the indicated tooth in advance the needle until it approximates the apex.
  • Aspirate.
  • Inject ¼-½ cartridge of anaesthetic.
  • If palatal tissue anaesthesia is necessary (extraction or incomplete anaesthesia of the tooth due to accessory innervation from the palatal nerves), then one can inject anaesthetic solution directly into the lingual tissue at the free gingival margin or one can insert the needle interproximally from the buccal and deposit anaesthesia as the needle is advanced lingually.
  • The needle is withdrawn and recapped.
  • Wait 3-5 minutes before commencing treatment. The patient should exhibit numbness in the area of administration and absence of pain during treatment.
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