A comparison of techniques for cleaning endodontic files after usage: A quantitative scanning electron microscopic study

Comparison of Different Cleaning Procedures of Implant Drills Using TC99

“…7,13 Advantages of ultrasonic cleaning such as reducing direct handling of contaminated instruments, decreasing the chance of puncture injuries, and superior cleaning ability makes it a good cleaning technique. 6,14 Presoaking instruments in an enzymatic cleaner before ultrasonic cleaning has increased the effectiveness of cleaning. 3 However, the effectiveness of these methods in cleaning contaminated implant drills is not evaluated, and the best cleaning protocol for implant drills is still unknown.…”

“…This finding is in agreement with other studies, which have shown the inadequacy of hand scrubbing and ultrasonic cleaning in removing organic debris from contaminated endodontic files. 6,18,19 Furthermore, Lowe et al, 20 who studied blood contamination of matrix bands, reported that blood was detected on 32% of hand scrubbed and 3% of ultrasonically cleaned matrix band retainers. They concluded that it was not possible to decontaminate assembled matrix bands using any method currently available to dental practitioners and suggested discarding used matrix bands.…”

“…With the aid of scanning electron microscopy, they concluded that none of these methods were effective. 6 Similarly, according to Eggert et al 8 …”

“…Any failure to remove organic materials before sterilization creates a potential for transmission of infection because the efficacy of subsequent disinfection will be compromised. 5,6 The design of small rotary cutting instruments with complex structure like endodontic files and implant drills makes the removal of gross contaminations of blood, saliva, and debris, and lends itself to a major cleansing problem. Various decontamination methods have been introduced for efficient cleaning of these instruments, including:…”

Avaliação do desempenho e alteração de superfície das limas Wave One e One Shape no decorrer do número de usos

“…Dentre os métodos empregados a este fim ressalta-se a microscopia eletrônica de varredura e a cronometragem do tempo de preparo do canal em cada utilização. (Ferreira Murgel, et al 1990). …”