Bacteriological Sampling From Root Canals Directly After Chemomechanical Treatment A Clinical And Bacteriological Study

An in vitro evaluation of the antimicrobial efficacy of irrigants on biofilms of root canal isolates

“…The strains chosen for the study were Prevotella intermedia , Peptostreptococcus micros , Streptococcus intermedius , Fusobacterium nucleatum and Enterococcus faecalis , which have been frequently isolated after completion of treatment measures in vivo (Grahnen & Krasse 1963, Goldman & Pearson 1969, Olgart 1969, Cvek et al . 1976, Byström & Sundqvist 1983, Byström & Sundqvist 1985, Gomes et al .…”

“…Enterococcus faecalis has gained notoriety as a persistent organism that can survive as a monoculture in root canals (Grahnen & Krasse 1963, Engstrom 1964, Goldman & Pearson 1969, Myers et al . 1969, Olgart 1969, Gomes et al . 1996, Sirén et al .…”

“…1997. The use of antimicrobial agents as adjuncts for irrigation and medication of root canals has been shown to help reduce the bacterial counts further (Grahnen & Krasse 1963, Goldman & Pearson 1969, Olgart 1969, Byström & Sundqvist 1983, Gomes et al . Mechanical instrumentation alone appears not to reduce the bacterial load effectively or permanently (Ingle & Zeldow 1958, Byström & Sundqvist 1981.…”

“…Mechanical instrumentation alone appears not to reduce the bacterial load effectively or permanently (Ingle & Zeldow 1958, Byström & Sundqvist 1981. The use of antimicrobial agents as adjuncts for irrigation and medication of root canals has been shown to help reduce the bacterial counts further (Grahnen & Krasse 1963, Goldman & Pearson 1969, Olgart 1969, Byström & Sundqvist 1983, Gomes et al . 1996, Molander et al .…”

Effects of mechanical and chemical procedures on root canal surfaces

“…They therefore concluded that there was an absence of evidence that specific bacteria were implicated in persistent infections (108). This view has been confirmed for primary root canal treatment by several groups (181,185,194). Gomes et al (185) did, however, reach the overall conclusion (based on both primary and secondary root canal treatments) that certain species were more resistant to biomechanical procedures than others.…”