Penetration Depth of Warm Vertical Gutta-Percha Pluggers: Impact of Apical Preparation

Comparative Assessment of ActiV GP/Glass Ionomer Sealer, Resilon/Epiphany, and Gutta-Percha/AH Plus Obturation: A Bacterial Leakage Study

“…Enhanced flow may result in less cracking and separation from the dentinal walls upon setting as well as allow for better flow into accessory canals and other irregularities. In addition, it is possible that the two warm vertical techniques attained a thinner sealer interface in the coronal and middle thirds of the canals (22,23). The ActiV GP/GI sealer system uses a single-cone technique that relies on the ability to create a standardized tapered preparation in canals with round crosssectional geometry.…”

“…Thus, maximizing the space occupied by the obturation material would reduce the potential for gaps that could occur during sealer contraction. Despite the advent of master cones that closely resemble the geometry of NiTi rotary instruments, teeth obturated with a single-cone technique may still have a thicker sealer interface (23,24). It has been reported that the coating of GI filler on the surface of ActiV GP/GI sealer cones is nonhomogeneous, which may also contribute to less favorable bonding (14).…”

Efficacy of Two Contemporary Single-cone Filling Techniques in Preventing Bacterial Leakage

“…Because root shape may be an important factor in leakage of single-cone obturation techniques, equal percentages of round and oval-shaped canals were included in the three experimental groups. Although the penetration depths of heat carriers in a warm vertical compaction technique preclude optimal plasticizing of the gutta-percha master cones along the apical third of root canals (20,21), a thinner sealer interface may be expected along the middle and coronal thirds of the canals when compared with single-cone techniques. Even with the advent of greater taper master cones that closely match the geometry of nickel-titanium rotary instruments in contemporary single-cone techniques (10), a larger volume of sealer should still be anticipated, given the existence of canal fins, anastomoses, and cul-de-sacs, and in the presence of oval-shaped canals (22).…”

Evaluación in vitro de la microfiltración de Enterococcus faecalis usando cinco técnicas de obturación / In Vitro Evaluation of Enterococcus faecalis Microleakage Using Five Obturation Techniques

“…Por esto, en las técnicas que utilizan condensación vertical, el canal radicular debe ensancharse de manera cónica para que se adapten bien los compactadores y logren llegar a la profundidad adecuada para reblandecer y condensar la gutapercha en la zona apical (25). Esta condensación apical es utilizada en la condensación híbrida-mixta, lo cual, unido a la obturación del tercio apical con la técnica de condensación lateral, permite maximizar el volumen del material semisólido, al minimizar la cantidad de cemento sellador entre la gutapercha y la pared de dentina.…”