Flow of various brands of gutta-percha cones under in vitro thermomechanical compaction

Coronal Microleakage Of Enterococcus Faecalis In Three Types Of Endodontic Filling (Warm Vertical Compaction, Lateral Compaction, And Single Cone)

“…1 Lateral compaction does not meet the requirement of providing homogeneous sealing of the root canal, unlike the warm vertical compaction technique, which provides homogeneous sealing allowing adaptation of material to the walls, and even sealing root canal irregularities. 5,6 The cold single-cone technique, on the contrary, is being widely used nowadays due to its simplicity and low cost, even though it does not provide a threedimensional sealing of the root canal, in contrast to the evidence, which has demonstrated that this technique has high failure rates due to poor sealing. [7][8][9][10] Dye penetration and microbial filtration are the two most common methods to evaluate microleakage of endodontic obturations, 11 but microbial filtration is the most relevant method, since it fits clinical conditions.…”

“…1 La compactación lateral no cumple el requisito de generar un sellado homogéneo del conducto radicular, contrario a la técnica de compactación vertical caliente, la cual logra un sellado homogéneo que permite la adaptación del material a las paredes, sellando incluso las irregularidades en el conducto. 5,6 La técnica de cono único en frío, por el contrario, está siendo ampliamente usada en nuestro medio debido a su facilidad y bajos costos, sin importar que se logre o no el sellado tridimensional del conducto radicular, lo cual va en contraposición a la evidencia, que ha demostrado que esta técnica presenta altos índices de fracaso debido a su falta de sellado. [7][8][9][10] La filtración con tintes y la filtración microbiana son los dos métodos más comunes para evaluar la microfiltración de obturaciones endodónti-cas, 11 pero la filtración microbiana es el método más relevante, ya que se ajusta a las condiciones clínicas.…”

Effectiveness of gutta-percha and Resilon in filling lateral root canals using the Obtura II system

“…4,5 The filling technique and the properties of the material employed are the two essential factors for three-dimensional filling of the root canal system. [6][7][8] It has been suggested that the ideal root canal filling should consist of a sufficient amount of gutta-percha covered by a thin layer of a sealer. 9,10 In this regard, several filling techniques employing thermoplastic guttapercha have been evaluated for their effectiveness in filling irregular or lateral root canals.…”

“…17 Although several endodontic techniques have been evaluated with respect to their ability to adequately fill the root canal and its irregularities, 9,11,12 few studies have focused on the thermoplasticity of different brands of guttapercha and Resilon when using thermoplastic techniques. 8,19,20 Resilon (Resilon Research LLC, Madison, USA), a synthetic polymer-based material, has been proposed as an alternative to gutta-percha. 7 The thermoplastic properties of Resilon were studied by Miner et al, 10 who demonstrated that Resilon and gutta-percha have similar melting points of approximately 60 °C.…”

“…However, few studies have focused on comparing the effectiveness of gutta-percha and Resilon without the use of an endodontic sealer in this technique. 7,8 The aim of the present study was to evaluate the ability of two types of gutta-percha and Resilon to fill simulated lateral canals with the Obtura II system.…”