Local
Hygiene
Anesthesia
StudyBoard
GuideExam
2026_2027.pdf
_ Dental
Local
Hygiene
Anesthesia
Study Board
Guide Exam
2026_2027.pdf
_ Dental Hygiene Study Guide 2026_2027.pdf
Local Anesthesia Board Exam |
Dental Hygiene Study Guide
2026/2027
Local Anesthesia Board Exam _ Dental
Local
Hygiene
Anesthesia
StudyBoard
GuideExam
2026_2027
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What injection numbs the lower lip?
Mental
*Foramens & Nerves that enter and exit foramen rotundum, ovale, mandibular, incisive and
mental
Foramen rotundum - maxillary division of trigeminal nerve - V5
Foramen ovale - mandibular division of trigeminal nerve - V5
Mandibular - inferior alveolar nerve
Incisive - nasopalatine nerve
Mental - mental nerve
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*Incisive papilla & nasopalatine injection
Nerves anesthestized - bilateral nasopalatine
Area anesthestized - anterior portion of hard palate from M of right first premolar to M of
leftpremolar.
No hemostasis except in injection sight.
Technique - 27 gauge short needle inserted into palatal mucosa just lateral to incisive
papilla, target area is incisive foramen beneath the incisive papilla.
Landmarks - incisive papilla and central incisors
Approach - 45 degree angle toward incisive papilla
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Topical Anesthesia
*Benzocaine - ester, not absorbed systemically, penetrates 2-3mm, 6 - 20 %,
Lidocaine- amide
Other info on topicals - no vasoconstrictors, concentration greater than locals, benzocaine
and lidocaine are not soluble in water.
*What cause would you expect if a patient had a lesion on lower lip the next day??
Soft tissue injury - self inflicted trauma to lips and tongue from biting it while anesthetized.
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