Microbiological evaluation of one- and two-visit endodontic treatment of teeth with apical periodontitis: a randomized, clinical trial.
The antimicrobial efficacy of endodontic procedures performed in one-visit (including a 10-min intraappointment dressing with 5% iodine-potassium-iodide) was compared with a two-visit procedure (including an interappointment dressing with calcium-hydroxide paste). Teeth with apical periodontitis (n = 96) were randomly assigned to either group. Root canal sampling and culturing were performed before and immediately after instrumentation, and after medication. Initial sampling demonstrated the presence of microorganisms in 98% of the teeth. Postinstrumentation sampling showed reduction of cultivable microbiota. Antibacterial dressing further reduced the number of teeth with surviving microbes. In the postmedication samples, residual microorganisms were recovered in 29% of the one-visit teeth and in 36% of the two-visit treated teeth. No statistically significant differences between the groups were discerned. It was concluded that from a microbiological point of view, treatment of teeth with apical periodontitis performed in two appointments was not more effective than the investigated one-visit procedure.
Department of Endodontology, Faculty of Odontology, Sahlgrenska Academy, Göteborg University, Sweden. kvist@odontologi.gu.se
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T
Kvist
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A
Molander
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G
Dahlén
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Reit
D001421:Bacteria, Anaerobic / Q000145:classification / Q000187:drug effects; D002126:Calcium Hydroxide / Q000627:therapeutic use; D015169:Colony Count, Microbial; D003786:Dental Pulp Cavity / Q000382:microbiology*; D005260:Female; D006092:Gram-Negative Facultatively Anaerobic Rods / Q000187:drug effects; D006801:Humans; D017613:Iodine Compounds / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D010485:Periapical Periodontitis / Q000382:microbiology / Q000628:therapy*; D045202:Porphyromonas endodontalis / Q000187:drug effects; D016966:Porphyromonas gingivalis / Q000187:drug effects; D011193:Potassium Iodide / Q000627:therapeutic use; D018720:Prevotella / Q000187:drug effects; D012388:Root Canal Irrigants / Q000627:therapeutic use*; D012390:Root Canal Therapy / Q000379:methods*
D017613:Iodine Compounds; D012388:Root Canal Irrigants; C439385:iodine potassium iodide; D011193:Potassium Iodide; D002126:Calcium Hydroxide