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31 Cards in this Set
- Front
- Back
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What is the aim of infection control in endo?
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To reduce microbes already inside canal
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Why is it important to follow correct infection control?
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So you don't ADD any microbes to the canal
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What things should you describe to a patient before obtaining consent?
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- procedure + prognosis
- alternative to recommended tx with respective prog - foreseeable risks |
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What are 4 reasons for endodontic banding?
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- protect tooth from fracture during endo tx until more definitive resto can be placed
- reduce cuspal flexure in teeth undergoing RCT (helps prevent fracture of cusps --> vertical root fractures) - ease in rubber dam placement - adequate coronal seal |
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Should existing restorations be removed? Cite proof.
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Yes! Abbott (2004) study. Found that there was only a 56% chance of detecting caries, cracks or marginal breakdown prior to resto removal
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What are the uses for a cuff or split dam technique?
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- severely broken down teeth
- when banding is required - sometimes can be used for isolation |
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What should you do when cutting access cavities through existing restorations?
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- remove ALL of the restoration - not just some of it
- any recurrent caries removed as well |
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What is the banding sequence?
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1. clear contact points if necessary
2. select band of correct size 3. if prox boxes are below level of ortho band, place tofflemire retaining + matrix band to adequately build up tooth prior to placing band 4. if shallow prox box, orthoband can serve as a matrix band |
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What are 5 burs used for banding?
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1. slow speed round bur
2. flame bur 3. course football 4. smooth football 5. white stone |
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What is the slow speed round bur used for?
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to roughen interior part of band
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What is the flame bur used for?
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to break contacts
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What is the course football used for?
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to reduce occlusion and band
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What is the smooth football used for?
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to smooth occlusion and the band
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What is the white stone used for?
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to smooth occlusion and the band
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What is Ketac Cem used for?
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To cement the band
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What is Ketac Fill used for?
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To restore the tooth
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What is Ketac Molar used for?
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to restore the tooth
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What are 4 reasons for taking radiographs?
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1. when tx'ing tooth for root therapy
2. essential for initial dx 3. essential for determining root canal length 4. at least 2 radiographs needed to identify/separate canals in multi-rooted teeth |
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What does average risk constitute?
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routine complexity
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What does high risk constitute?
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complicated with 1 or more tx/patient impediment factors
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What does extreme risk constitute?
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exceptionally complicated. challenging even for a highly skilled dentist
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What risk situations may referral to an endodontist be appropriate?
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Levels 2 and 3
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What is the code for an intraoral periapical or bitewing radiograph?
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022
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What is the code for a panoramic radiograph?
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037
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What is stage 1 of bone loss?
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loss of lamina dura at apex
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What is stage 2 of bone loss?
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widened PLS
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What is stage 3 of bone loss?
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further widening of PLS, may get facial swelling or sinus formation
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What time frame is bone loss seen in?
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Not til after 10 days
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What factors can complicate taking radiographs?
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Rubber dam, clamps, root canal instruments
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Where must the tooth to be tx'd be in the image?
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Centre
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What technique is preferred for taking radiographs?
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the paralleling technique (film as far from tooth as possible to ensure apex clearly visible)
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