Endodontics
Course Review
Enoch Ng, DDS 2014
Pulpal Therapy in primary and young permanent teeth
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Indirect pulp therapy
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Usually not in primary teeth, no clinical/radiographic signs of pathology
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Arrest carious process, provide conducive conditions to reactionary dentin formation
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Promote remineralization of altered dentin left behind, promote pulpal healing
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Direct pulp cap
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Seal exposure with biocompatible material prior to coronal filling, exposure >24h negates success
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Zone of tissue necrosis from CaOH differentiation takes place, irregular osteo/tubular/tertiary dentin
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Indications
Pinpoint mechanical exposure with no prior symptoms
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Contraindications
Carious pulp exposure is NEVER pulp capped – do pulpotomy
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Technique
Local anesthetic, rubber dam
Removal of all caries – no further pulpal removal
Disinfection with NaOCl <10-15min, hemostasis with moist cotton pellet
1mm MTA sealer, moist cotton pellet and cavit seal
Patient checked after 12-48h for MTA setting, bonding restoration placed
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Pulpotomy
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Surgical removal of entire coronal pulp presumed to be partially or totally inflamed, possibly infected.
Leave vital radicular pulp in canals – promote healing and retention of vital radicular pulp.
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Success rate depends on operator ability to differentiate inflamed coronal and radicular pulp
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Indications
Carious pulp exposure
Want to keep tooth instead of using space maintainer
Inflammation confined to coronal
Tooth restorable
At least 2/3 remaining root length
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Contraindications
History of spontaneous pain
Uncontrolled hemorrhage after coronal pulp amputation – indicate radicular inflammation
Sinus tract of pus in pulp chamber – indicates necrosis
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Technique
Local anesthesia, rubber dam
Caries removal, bleeding from exposure shows vital pulp tissue
Remove entire chamber roof, lots of water
Removal all coronal pulp fibers with slow speed or spoon excavator
Thorough rinse and dry with cotton pellets
Control hemorrhage with cotton pellets against pulp stumps – clotting in 3 min usually
If remaining bleeding, check all coronal fibers removed, may indicate radicular inflammation
Seal, for young permanent dentition NSRCT done after root development
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Islets of tertiary dentin formed after 4 months – can obliterate canal