Endodontics
Course Review
Enoch Ng, DDS 2014
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Common Abbreviations
ac – before meals
hs – at bedtime
pc – after eating
prn – when needed
stat – immediately
ut dict – as directed
po – by mouth
pr – rectally
c – with
s – without
qd – every day
qod – every other day
bid – twice daily
tid – 3x daily
qid – 4x daily
g/gm – gram
gr – grain
tbsp – tablespoon
tsp – teaspoon
cap – capsule
gtts – drops
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Write clearly
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Use metric and zeroes with decimals
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Include reminder of intended purpose of medication with directions (ex:// for pain)
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Do NOT use abbreviations
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Narcotics
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Schedule 1 – marijuana, heroin
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Schedule 2 – Percodan, Tylox
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Schedule 3 – Vicodin
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Schedule 4 – valium, Darvocet N
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Schedule 5 – anti-diarrhea meds, codeine containing cough syrups
Schedule 2 – most be written prescription (except emergencies) and only enough for 24h period
Must include written copy to dispenser, no refills allowed
Schedule 3-5 – 6month time limit, NMT 5 refills
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Completing Prescriptions
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Print from axiom, have instructor sign
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If scheduled drug, BNDD number needed
Pulp and Periradicular Tissues
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Dental Pulp – loose CT with unique features
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Rigid, noncompliant environment
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Lacks collateral circulation
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Pulpal pathosis
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Irritants – microbial, chemical, mechanical
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Periradicular pathosis
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Preceded by pulpal pathosis
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Periradicular lesions result from bacteria and their byproducts
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Apical periodontitis is BOTH protective and destructive
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Nonsurgical Root Canal Treatment
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Clean and shape root canal system
Debridement of root canal system
Enlarge and shape canals to facilitate obturation
Create apical seat to contain obturating material
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Obturate root canal system
Create bacterial/fluid tight seal along length of root canal system from coronal to apex
Use gutta percha, sealer, definitive coronal seal
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Maintain health/promote healing and repair of periradicular tissues
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Alleviate symptoms/prevent future adverse clinical signs/symptoms
