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Mandibular and Infraorbital Block (Local Anesthesia)

Views: 9488 - Comments: 6

Lisa Davis, CVT, VTS (Dentistry) demonstrates how to perform a mandibular block and an infraorbital block to provide regional anesthesia during dental extractions.

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Lisa Davis's picture
Lisa Davis

CVT VTS(Dentistry)

Enrolled: 12/2012

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Louise O'Dwyer's picture

I looooove local blocks - so easy, so inexpensive and sadly (in the UK) so under used!!!! Excellent video.

Julie Hirsch's picture

Was that saline that was injected? That's what the syringe label said.

Chris Green's picture

The Label on the syringe actually says: Lidocaine/Bupivacaine. Lisa explains that is what she is injecting at around 0:45 as well.

stephanie ficco's picture

We generally use Bupivicaine only and use about 0.1cc per site. I often feel this isn't enough, especially in those patients who we've used Alfaxan. What is the amount that should be injected??

Becky Smith's picture

Hi Stephanie, Bupivacaine has a dose of 1 - 2ml/kg with a maximum dose of 2mg/kg. This is actually a very large amount and if you need to block 3 or 4 sites, you can give much more than 0.1ml per site. However you can give less depending on your anesthetic pre-medication, doctor's preference and the patient's anatomy. For example at my clinic we use 0.1ml to 0.15ml bupivacaine (or ropivacaine) per site in cats and small dogs (<10#). for a 10# cat the maximum dose would be 1.8ml's, but if we block 4 sites we are only using 0.4ml's, far below the maximum dose. Bupivacaine is cardiotoxic if given in a vessel and can make staff nervous when giving larger doses. I would recommend talking with your doctors and fellow techs to find out why you are giving 0.1ml per site. Maybe that is what they were taught in school. I hope this helps!