Dental Hygiene Local Anesthesia, Exams of Anesthesiology

Download Dental Hygiene Local Anesthesia and more Exams Anesthesiology in PDF only on Docsity! Dental Hygiene Local Anesthesia Where mandibular nerve passes through in the skull - Foramen Ovale Where nasopalatine nerve passes through - Incisive Foramen Maxillary division of Trigeminal Nerve is - Sensory Nerve NOT associated with the mandibular nerve branch - Infraorbital nerve Teeth that PSA innervates - 1st, 2nd, and 3rd maxillary molars, but may not innervate MB root of the maxillary 1st molar What injection is needed to anesthetize linguals of max anteriors - Nasopalatine What injections are needed to anesthetize the entire palate on one side - Greater Palatine and Nasopalatine How far do you insert the needle on an IANB? - 20-25 mm or 3/4 the length of the needle What happens during depolarization? - Sodium in and Potassium out When do you aspirate? - Right before anesthetic is to be deposited Which local anesthetic is metabolized by pseudocholinesterase? - Esters Topical anesthetics are least effective on? - Keratinized tissues Which is true of topical anesthetics? - No systemic problems Which has the highest occurrence of allergic reactions - Ester option; Benzocaine. 1 What is the significance of giving an amide anesthetic to a patient with cirrhosis? - Due to amide anesthetics being metabolized by the liver. What is the landmark for the IANB injection? - Coronoid notch Psychogenic pain - No organic base for the pain Max epi dose for cardiac & normal pt - Cardiac- .04mg Normal- .2mg What is trismus? - Limited opening of mouth Management of hematoma - Cold compression and pressure to bleeding site Management of trismus - Heat therapy, saline rinses, asprin and jaw exercises Hematoma can occur if needle penetrates into the pterygoid plexus of veins during which injection? - PSA What needle should be used for infiltration? - 27g short Volume of solution of a single cartridge of LA - 1.8-1.7ml Antioxidant preventing biodegration of LA by preventing oxidation of vasopressor by oxygen - Sodium bisulfite Actions of vasopressors - Increase duration of LA, hemostasis, reduce chance of toxicity What would cause a dry cornea? - Anesthetizing the facial nerve. The facial nerve can be anesthetized if bone is not contacted during the IANB and anesthetic solution is deposited into the parotid gland. Temporary bell's palsy would not allow the patients eyelid to blink or close, which would cause the dry eye. How to calculate amount of epi in a solution - 1% solution = 10 X 1.8 (or 1.7) = 18mg (or 17mg) 2% solution = 20 X 1.8 (or 1.7) = 36mg (or 34 mg) 3% solution = 30 X 1.8 (or 1.7) = 54 mg (or 51 mg) 2 Where is epi naturally found in body? - Adrenal gland, endocrine Which anesthetic is not an amide? - Procaine (all amides have an "i" in prefix) What is anesthetic suggested deposit rate? - 1ml/min Where to inject if infiltrating lingual of molars - 5-10mm from the free gingival margin Injection site if you want infiltrate #13 lingual? - apex of tooth Expiration date for local anesthesia drug - ... When giving a IA injection at what point will the needle contact the bone? - 2/3 way is when needle will contact the Ramus When you are giving an injection the pt experience no pain until Anesthetic is deposited what happen? - ... IA goes through what foramen - Mandibular foramen #15 has a perio abcess, you've already given the PSA, what other injection will you need to numb the lingual? - Greater Palatine A central Incisor has a periodontal defect on the lingual root surface, what injection would you use? - Nasopalatine You are seeing a patient for SRPP and they have Cirrhosis of the liver, what complications could arise from using an amide local anesthetic? - Patient has complications metabolizing the drug Where are you MOST likely use a long needle - IANB Risk of hematoma - PSA injection Cause of transient facial paralysis - 5 IA injection~ introducing anes. into the parotid gland 6