Effectiveness of manual and rotary instrumentation techniques for cleaning flattened root canals.
The cleaning capacity of manual and rotary instrumentation techniques in mesial-distal flattened canals was studied by morphometric analysis. Twenty human mandibular incisors were divided into two groups of 10 teeth each: group 1, crown-down technique with rotary instrumentation using ProFile .04; group 2, crown-down technique with manual instrumentation using K-files. The teeth were evaluated with an optic microscope that was coupled to a computer to determine the percentage of root canal area with debris. The nonparametric Mann-Whitney U test showed a statistically significant difference at the level of 1% between the techniques. The manual technique was more efficient in cleaning mesial-distal flattened root canals than the rotary technique, although neither completely cleaned the root canal.
Barbizam
João Vicente Baroni
JV
Faculty of Dentistry of Ribeirão Preto, University of São Paulo, Brazil.
Fariniuk
Luis Fernando
LF
Marchesan
Melissa Andréia
MA
Pecora
Jesus Djalma
JD
Sousa-Neto
Manoel D
MD
D003762:Dental Instruments; D006801:Humans; D007180:Incisor; D009532:Nickel; D018915:Root Canal Preparation / Q000295:instrumentation*; D018709:Statistics, Nonparametric; D014025:Titanium
C040654:titanium nickelide; D009532:Nickel; D014025:Titanium