Intracanal Medication
Dr syed Abrar Ali
Assistant Professor
Operative Dentistry
Introduction
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An agent used as an adjunt to cleaning
and shaping for prevention or treatment
of apical periodontitis.
Functions of Intracanal
Medicaments
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Primary function
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Disinfection
Secondary Functions
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Induction of hard tissue formation
Pain control
Control of exudation or bleeding
Control of inflammatory root resorption
Primary function
Disinfection
Antimicrobial Agents
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Antibiotics
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Sulpha preparations
Penicillins
Metronidazole
Terracycline
Clindamycin
Antimicrobial Agents
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Disinfectants
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Aldehydes
Halogens
Phenols
Chlorhexdine
Calcium Hydroxide
CaOH with antimicrobial additives
Concept Of Predictable Disinfection In
Endodontics
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Mechanical instrumentation
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Antibacterial effect of irrigation
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Effect of antibacterial dressing
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Single visit issue
Microbes Of The Pulp
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With apical periodontitis
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Retreatment cases
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Fusobacterium, prevotella, pophyromonas,
peptostreptococcus, veillonella, spirochetes
Enterococci esp. E. Fecalis, Yeasts
Actinomyces
Secondary Functions
Induction Of Hard Tissue
Formation
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Also called root end closure or
apexification
Calcium hydroxide, MTA
Barrier allows mechanical compression
of root filling
Secondary Functions
Pain Of Endodontic Origin
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Interappointment dressing to combat
infection
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Ledermix
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Corticosteroids
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NSAIDS
Secondary Functions
Exudation And Bleeding
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Exudation
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Sign of infection
Large apical formen
Over-instrumented canal
Bleeding
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Calcium Hydroxide
Formacresol
Secondary Functions
Root Resorption

After infection and trauma
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Several types
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CaOH, Ledermix, Calcitonin
External Root Resorption
Resorption After Bleaching
Internal Resorption
Tissue Toxicity and Biological
Considerations
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Aldehydes and phenols
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Tissue damage
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Interfere with healing or serve as locus
for bacterial colonization to creat a
lesion that never existed
Suggested Clinical Procedure
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Mechanical reduction of bacteria
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Application of medicament
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Irrigation
Dressing
Temporary filling
Suggested Reading
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Harty’s Chapter 7