Conversation: The conversation between human and AI assistant.
[|Human|] Last Thursday I had an Upper crown prep on a tooth number 14 molar, just as soon as injection was given I felt like a golf ball size swelling at the injection site, I did swell and now have major bruising and uncomfortable not from crown prep but injection, swollen up to eye area. Could the needle have nicked the maxillary artery
[|AI|]  Hi. Thanks for the query. It looks like due to deep placement of injection needle there has been piercing of Steroid plexus of veins, and it has led to Hematoma formation. Due to deep penetration in the mesh of veins there is blood leakage from the blood vessels, and it gets accumulated in the soft tissues and there is hematoma formation. Due to Hematoma formation there is swelling and bruising. It is a self resolving condition and gets better on its own. You can do cool compresses over the swelling to let it reduce faster. If there is pain take anti-inflammatory painkillers like Ibuprofen. Hope this helps. Regards.