TY - JOUR
T1 - Immediate root canal disinfection with ultraviolet light
T2 - an ex vivo feasibility study
AU - Metzger, Zvi
AU - Better, Hadar
AU - Abramovitz, Itzhak
PY - 2007/9
Y1 - 2007/9
N2 - Objective: The study was designed to test application of ultraviolet light to root canal walls, as a mean of complementary immediate disinfection after the use of sodium hypochlorite. Study design: Root canals were infected ex vivo with Enterococcus faecalis for 48 hours. Nonattached bacteria were washed away, and the remaining attached bacteria were subjected to disinfection, with 5% sodium hypochlorite alone or followed by exposure to ultraviolet light (254 nm, 300 mJ/cm2). Root canals were then tested for remaining viable bacteria. Canals were obturated and tested again after 14 days. Results: Sodium hypochlorite alone achieved negative cultures in only 47% of the cases, but 96% was achieved with sodium hypochlorite followed by ultraviolet light (P < .001). This status was also maintained after 14 days. Conclusions: Illumination of root canals with ultraviolet light may be an effective supplementary means to achieve immediate disinfection of infected root canals.
AB - Objective: The study was designed to test application of ultraviolet light to root canal walls, as a mean of complementary immediate disinfection after the use of sodium hypochlorite. Study design: Root canals were infected ex vivo with Enterococcus faecalis for 48 hours. Nonattached bacteria were washed away, and the remaining attached bacteria were subjected to disinfection, with 5% sodium hypochlorite alone or followed by exposure to ultraviolet light (254 nm, 300 mJ/cm2). Root canals were then tested for remaining viable bacteria. Canals were obturated and tested again after 14 days. Results: Sodium hypochlorite alone achieved negative cultures in only 47% of the cases, but 96% was achieved with sodium hypochlorite followed by ultraviolet light (P < .001). This status was also maintained after 14 days. Conclusions: Illumination of root canals with ultraviolet light may be an effective supplementary means to achieve immediate disinfection of infected root canals.
UR - http://www.scopus.com/inward/record.url?scp=34547856239&partnerID=8YFLogxK
U2 - 10.1016/j.tripleo.2007.03.027
DO - 10.1016/j.tripleo.2007.03.027
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AN - SCOPUS:34547856239
SN - 2212-4403
VL - 104
SP - 425
EP - 433
JO - Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
JF - Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
IS - 3
ER -