Dokumentation 14
In dieser Studie wird die Wirksamkeit unterschiedlicher Desinfektionsmittel auf 21 Keime untersucht, wie sie regelmäßig in den Wurzelkanälen devitaler Milchzähne und devitaler Permanentes angetroffen werden. Am effektivsten erwiesen sich Desinfektionsmittel auf der Basis von mit Kampfer angereichertem Parachlorphenol.
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Pediatr
Dent 1996 Nov-Dec;18(7):444-9 |
Inhibition
of pure cultures of oral bacteria by root canal filling materials.
Tchaou WS, Turng BF, Minah GE, Coll JA.
Department of Microbiology, University of Maryland Dental School, Baltimore,
USA.
This study compared the antimicrobial effectiveness of nine dental materials and
a negative control agent against 21 strains or species of bacteria using an agar
diffusion assay. The materials were: 1. Camphorated parachlorophenol mixed with
calcium hydroxide (CPC + Ca(OH)2). 2. CPC mixed with zinc oxide (CPC + ZnO). 3.
Formocresol mixed with zinc oxide and eugenol (FC + ZOE). 4. Chlorhexidine mixed
with ZOE (CHX + ZOE). 5. Kri paste. 6. ZOE. 7. Zinc oxide mixed with sterile water (ZnO + H2O). 8. Calcium hydroxide
mixed with sterile water (Ca(OH)2 + H2O). 9. Vitapex. 10. Vaseline (control).
The test bacteria represented species commonly isolated from nonvital primary
and permanent tooth root canals. The antimicrobial effectiveness of the
materials was divided into five groups based on the diameters of the zones of
inhibition against all test bacteria and distribution of the data. All materials
except Vaseline showed antimicrobial activity against some of the 21 organisms.
Generally, all materials inhibited gram-negative anaerobic bacteria more
effectively than aerotolerant gram-negative or gram-positive bacteria. Materials
containing CPC or FC (except Kri paste) produced strong or medium strong
inhibition against most bacteria. CHX + ZOE, Kri paste, ZnO + H2O, and ZOE
inhibited all or most bacteria, but to lesser extent than CPC + Ca(OH)2, CPC +
ZnO, or FC + ZOE. Ca(OH)2 + H2O, Vitapex, and Vaseline generally were
nonihibitory. The findings should allow a comparative evaluation of
antimicrobial effectiveness to be made of materials commonly used in pulpectomy
procedures with primary teeth.
PMID: 8970206 [PubMed - indexed for MEDLINE]
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