Chapter 33 Flashcards
The posterior superior alveolar nerve block provides what type of anesthesia for the maxillary third second and first molars and associated buccal soft tissue?
Pulpal
What is the appropriate method for recapping the anesthetic needle?
One-handed scoop
Higher gauge number of a needle
Smaller the diameter of the lumen
Trismus is the limited ability to open a jaw or discomfort of the jaw caused by muscle spasms due to contact with the medial masseter muscle during an injection. Avoidance of multiple injections and use of non-traumatic techniques can minimize the occurrence.
First statement is false, second statement is true
A positive aspiration occurs when blood is seen flowing into the cartridge. When this occurs, the needle and cartridge should be replaced to determine the results of subsequent aspirations.
Both statements are true
The nasopalatine nerve is a branch of what nerve?
Pterygopalatine nerve
Efferent nerve branches carry information
Away from the CNS to the periphery of the body
What is the insertion site for the middle superior alveolar block?
Over second premolar
The average length of a long needle is
32mm
What happens to the pH of blood when infection is present?
Decreases to an acidic 6.5
To ensure that the anesthetic is not deposited into a blood vessel the clinician should
Aspirate?
Which branch of the mandibular nerve is an afferent nerve that innervates the skin of the cheek, buccal mucosa, and buccal gingiva of the mandibular molars?
Buccal nerve
Which of the following are benefits of including a vasoconstrictor with the anesthetic?
Slow absorption, decreases systemic toxicity, prolonged duration
Local anesthesia for the mandibular division of the trigeminal nerve is more often successful that for the maxillary division, because the maxillary division has more variations and greater density of the maxillary and palatal bones.
Both statements are false
The mental nerve innervates the pulpal tissue of the pre-molars, canines, and incisors. The incisive nerve innervates the buccal mucosa anterior to the mental foramen to the midline and the lower lip and chin to the midline.
Both statements are false
Infiltration anesthesia is an injection that supplies anesthesia to multiple teeth. Nerve block anesthesia provides anesthesia to an area of a few centimeters.
Both statements are false
Middle superior alveolar nerve is an afferent nerve that innervates the maxillary Premolars and often the mesial buccal root of what tooth?
Maxillary first molar
Bases have a lower hydrogen ion concentration and can except hydrogen ions. Acids have a higher hydrogen ion concentration and want to attract more hydrogen ions.
First statement is true, second statement is false
What is the recommended rate for deposition of local anesthetic?
1-2 minutes
What class of drugs is contraindicated with the use of levonordefrin?
Tricyclic antidepressants
The posterior superior alveolar nerve block provides anesthesia for which of the following?
Pulpal/ soft tissue (mucobuccal fold, maxillary tuberosity, zygomatic process)
Infection in an area can prevent the accumulation of affective concentrations of local anesthetic solution because of
Increased vascularity and dilution of the anesthetic drug?
Nerve impulses are electrical in nature and occurs when a stimulus is applied to a depolarized nerve. The nerve in this resting state has a large number of sodium ions on the outside and a large number of potassium ions on the inside.
First statement is false, second statement is true
Epinephrine doses should be minimal for a patient taking tricyclic antidepressants, because epinephrine administration increases this individuals risk for developing ischemia
First statement is true, second statement is false
