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.

Subject headings

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Odontologi (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Dentistry (hsv//eng)

Keyword

Bacteria

Anaerobic

classification

drug effects

Calcium Hydroxide

therapeutic use

Colony Count

Microbial

Dental Pulp Cavity

microbiology

Female

Gram-Negative Facultatively Anaerobic Rods

drug effects

Humans

Iodine Compounds

therapeutic use

Male

Middle Aged

Periapical Periodontitis

microbiology

therapy

Porphyromonas endodontalis

drug effects

Porphyromonas gingivalis

drug effects

Potassium Iodide

therapeutic use

Prevotella

drug effects

Root Canal Irrigants

therapeutic use

Root Canal Therapy

methods

Publication and Content Type

ref (subject category)

art (subject category)