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