Results 241 to 250 of about 1,204,533 (276)

Bacterial leakage in endodontics: An improved method for quantification

Journal of Endodontics, 1996
A new method for studying leakage of root fillings using the bacterium Pseudomonas fluorescens ATCC 13525 is described. The presence of the microorganism is detected by fluorimetry and can thus be used to measure the depth of penetration from the root apex toward the crown of the tooth. This system, applied to a number of methods of root canal filling,
P M, Michaïlesco, J, Valcarcel, A R, Grieve, B, Levallois, D, Lerner   +4 more
openaire   +2 more sources

An evaluation of a glass ionomer luting agent: bacterial leakage

The Journal of the American Dental Association, 1987
This study quantitatively evaluates the bacterial leakage beneath crowns cemented with a glass ionomer cement compared with those cemented with a polycarboxylate cement or a varnish plus zinc phosphate cement. Bacterial samples were taken from beneath full crowns cemented with the test luting agents 3, 10, and 56 days after cementation.
M, Fitzgerald, R J, Heys, D R, Heys, G T, Charbeneau   +3 more
openaire   +2 more sources

Bacterial Leakage in Roots Filled With Different Medicaments and Sealed With Cavit

Journal of Endodontics, 2006
The aim of this study was to evaluate the time required by four different root canal medications coupled with the temporary filling material Cavit (ESPE, Seefeld, Germany) to prevent penetration of bacteria into the root canal. There were 145 roots prepared in a standardized manner.
Claudia R, Barthel, Felix F, Zaritzki, Wolfgang H-M, Raab, Stefan, Zimmer   +3 more
openaire   +2 more sources

Clinical evaluation of bacterial leakage of endodontic temporary filling materials

Journal of Endodontics, 1996
This study was an in vivo comparison of the bacterial leakage associated with three endodontic temporary restorative materials: Cavit, Intermediate Restorative Material (IRM), and TERM. The access openings of 51 endodontically treated teeth were randomly sealed with a 4-mm thickness of one of the three materials.
C W, Beach, J C, Calhoun, J D, Bramwell, J W, Hutter, G A, Miller   +4 more
openaire   +2 more sources

Bacterial Leakage at Implant-abutment Interface with Different Intermediate Materials

Journal of Oral Implantology, 2019
A gap exists at the implant-abutment interface in two-piece implants and can serve as a reservoir of bacteria and compromise the health of peri-implant tissue. This study aimed to compare the effect of different intermediate materials on bacterial leakage at the implant-abutment interface.
Farnoush, Mohammadi, Maryam, Hajmousaei, Nastaran, Vaziri, Mahnaz, Arshad   +3 more
openaire   +2 more sources

Evaluation of the bacterial leakage along the implant-abutment interface

Journal of Dental Implants, 2011
Context : Recent studies observed contamination of the inner parts of dental implants through bacterial penetration along the implant-abutment interface that may cause malodor and inflammation of peri-implant tissues. Aims : Evaluate in vitro bacterial leakage along the implant-abutment interface, comparing three types of connections : EH, IH and MT.
Renata Faria, LilianaGressler May, DiegoKlee de Vasconcellos, CláudiaÂngela Maziero Volpato, MarcoAntonio Bottino   +4 more
openaire   +1 more source

Ability of Three Root-End Filling Materials to Prevent Bacterial Leakage

Journal of Endodontics, 2001
This study evaluated the ability of three materials--a resinous root canal sealer (Sealer 26) prepared in a thick consistence, a reinforced zinc oxide-eugenol cement (IRM), and a glass-ionomer cement (Fuji IX)--in preventing bacterial leakage. Retrofilled teeth were mounted in an apparatus and then challenged by human saliva.
J F, Siqueira, I N, Rôças, E C, Abad, A J, Castro, S M, Gahyva, A, Favieri   +5 more
openaire   +2 more sources

A Novel Approach to Prove Bacterial Leakage of Implant-Abutment Connections In Vitro

Journal of Oral Implantology, 2016
Bacterial leakage from the implant-abutment-interface (IAI) is suspected of contributing to the development of peri-implantitis. The aim of the study was to develop a straightforward test setup to evaluate the bacterial leakage of the IAI of 2-piece implant systems under laboratory conditions. A test suspension of Enterococcus faecium was injected into
Andreas, Wachtel, Tycho, Zimmermann, Tobias, Spintig, Florian, Beuer, Wolf-Dieter, Müller, Andreas Dominik, Schwitalla   +5 more
openaire   +2 more sources

Bacterial leakage of mineral trioxide aggregate as a root-end filling material

Journal of Endodontics, 1995
Previous dye leakage studies have shown that mineral trioxide aggregate leaks significantly less than other commonly used root-end filling materials. This study determined the time needed for Staphylococcus epidermidis to penetrate a 3-mm thickness of amalgam, Super-EBA, Intermediate Restorative Material (IRM), or mineral trioxide aggregate (MTA) as ...
M, Torabinejad, A F, Rastegar, J D, Kettering, T R, Pitt Ford   +3 more
openaire   +2 more sources

The effect of the canal‐filled area on the bacterial leakage of oval‐shaped canals

International Endodontic Journal, 2007
AbstractAim  To compare the sealing ability and the canal‐filled area (gutta‐percha + sealer) of three current filling techniques in oval‐shaped canals.Methodology  A total of 50 oval‐shaped root canals were prepared and root filled as follows: G1: lateral condensation (n = 10), G2: System B (n = 10) and G3: Thermafil system (n = 10).
G, De-Deus, C, Murad, S, Paciornik, C M, Reis, T, Coutinho-Filho   +4 more
openaire   +2 more sources