Subject(s)
Ethanol , Root Canal Therapy , Sodium Hypochlorite , Chemical Phenomena , Chemistry, Physical , Drug Combinations , Surface TensionABSTRACT
The endosonic ultrasonic synergistic system was compared to conventional hand-filing and irrigating techniques for its ability to débride the root canal system. Extracted human teeth were endodontically prepared by conventional and ultrasonic techniques. The roots were cross sectioned and evaluated microscopically at the 1, 3, and 5 mm. levels from the apex for cleanliness. The endosonically prepared canals were significantly cleaner at all levels.
Subject(s)
Root Canal Therapy/methods , Ultrasonics , Dental Instruments , Evaluation Studies as Topic , Humans , Root Canal Therapy/instrumentation , Sodium Hypochlorite/administration & dosage , Therapeutic Irrigation , Ultrasonics/instrumentationABSTRACT
Diamond endodontic files and K-type files were compared for their ability to remove dentin when powered both by hand and by ultrasound. The diamond files were significantly superior dentin-removing instruments, especially when energized by ultrasound.
Subject(s)
Dentin/surgery , Root Canal Therapy/instrumentation , Electric Power Supplies , Humans , UltrasonicsABSTRACT
When the in vitro bactericidal action of 2.6 percent sodium hypochlorite endodontic irrigating solution was compared at room temperature (22 degrees C.) and at body temperature (37 degrees C.), sterility was achieved in significantly less time at 37 degrees C.
Subject(s)
Bacteria/drug effects , Root Canal Therapy , Sodium Hypochlorite/pharmacology , Temperature , Bacillus subtilis/drug effects , Escherichia coli/drug effects , Proteus vulgaris/drug effects , Spores, Bacterial/drug effects , Staphylococcus aureus/drug effects , Streptococcus sanguis/drug effects , Therapeutic IrrigationABSTRACT
The collagen-dissolving ability of both 2.6% and 5.2% sodium hypochlorite endodontic irrigating solutions was compared at room temperature (21 degrees C) and body temperature (37 degrees C). The 2.6% sodium hypochlorite solution at a temperature of 37 degrees C. was found to be equally effective as a collagen-dissolving agent when compared to 5.2% sodium hypochlorite at either 21 degrees C. or 37 degrees C.
Subject(s)
Collagen , Root Canal Therapy , Sodium Hypochlorite/pharmacology , Animals , Cattle , Hot Temperature , Sodium Hypochlorite/administration & dosage , Solubility , Temperature , Therapeutic IrrigationABSTRACT
Ultrasonic versus hand-powered K type files were compared for their ability to remove dentin from a standardized canal. The ultrasonic energized file removed a significantly greater amount of dentin in a fixed time period.
