Results 201 to 210 of about 22,169 (262)

Removal of Surgical Smear Layer

Journal of Endodontics, 2011
During apicoectomy and retrograde cavity preparation, a smear layer, which contains microorganisms and necrotic pulpal tissues, is formed on the dentinal surfaces cut by the instruments. Bacteria can survive and proliferate inside or below the smear layer.
C. Fabiani, V. Franco, F. Covello, E. Brambilla, M.M. Gagliani   +4 more
openaire   +2 more sources

Smear Layer Removal by EGTA

Journal of Endodontics, 2000
The purpose of this study was to compare the effects of ethylene glycol-bis (beta-aminoethyl ether)-N,N,N', N'-tetraacetic acid (EGTA) and EDTA on removal of the smear layer by using scanning electron microscopy. Fifteen single-rooted teeth were instrumented to size 60. Three teeth served as the control group, and the remaining teeth were assigned into
S, Calt, A, Serper
openaire   +2 more sources

Effect of smear layer on coronal microleakage

Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology, 1996
The purpose of this study was to examine the effect of smear layer on coronal microleakage. Fifty-two single-rooted extracted human teeth with a straight root canal were chemomechanically prepared and equally divided into experimental groups A and B.
L, Vassiliadis, E, Liolios, V, Kouvas, N, Economides   +3 more
openaire   +2 more sources

A New Solution for the Removal of the Smear Layer

Journal of Endodontics, 2003
Various organic acids, ultrasonic instruments, and lasers have been used to remove the smear layer from the surface of instrumented root canals. The purpose of this study was to investigate the effect of a mixture of a tetracycline isomer, an acid, and a detergent (MTAD) as a final rinse on the surface of instrumented root canals. Forty-eight extracted
Mahmoud, Torabinejad, Abbas Ali, Khademi, Jalil, Babagoli, Yongbum, Cho, William Ben, Johnson, Krassimir, Bozhilov, Jay, Kim, Shahrokh, Shabahang   +7 more
openaire   +2 more sources

Irrigation: beyond the smear layer

Endodontic Topics, 2012
Traditionally, much of the attention placed on irrigation in endodontics has focused on smear layer removal. While the smear layer continues to be a relevant topic, other areas related to irrigation and irrigants have emerged that also require a more in‐depth analysis and understanding.
Markus Haapasalo, Wei Qian, Ya Shen
openaire   +1 more source

Influence of Smear Layer on Depth of Demineralization and Thickness of Hybrid Layer

The Journal of Adhesion, 2013
In order to evaluate the thickness of the hybrid layer and depth of demineralization of dentin surfaces submitted to different treatments, dentin slices from human teeth were divided into two groups: one polished with 60-grit SiC paper and the other with 600-grit SiC paper.
Skupien, Jovita A., Montagner, Anelise F., Bortolotto Ibarra, Tissiana, Krejci, Ivo, Susin, Alexandre H.   +4 more
openaire   +1 more source

Smear layer instability caused by hemostatic agents

The Journal of Prosthetic Dentistry, 1996
The effect of hemostatic agents, other than a 15.5% Fe2(SO4)3 solution, on prepared tooth structure is unknown. The purpose of this study was to (1) compare the effect of six commonly used hemostatic solutions and two nondental astringents on the dentinal smear layer and (2) determine whether different responses caused by product and/or time could be ...
M F, Land, C C, Couri, W M, Johnston
openaire   +2 more sources

Effect of Removal of the Smear Layer on Apical Microleakage

Journal of Endodontics, 2001
It has been shown previously that the smear layer created during instrumentation of the root canal promotes apical microleakage. The purpose of the present study was to investigate the effect of removal of the smear layer on apical microleakage, using the fluid filtration method. Thirty-six single-rooted human premolar teeth were used. Six of the teeth
S, Timpawat, N, Vongsavan, H H, Messer
openaire   +2 more sources

Penetrability of the smeared layer by a strain of proteus vulgaris

Journal of Endodontics, 1985
Proteus vulgaris , a highly motile, swarming organism was used to determine whether the smeared layer on the surface of cut dentin in a cavity preparation was a barrier to the passage of the test organism through the dentinal tubules. Noncarious, extracted teeth were used in the model system.
S, Williams, M, Goldman
openaire   +2 more sources

Dentine smear layer and bonding agents. Review: 1. Smear layer--nature of the smear layer.

Restorative dentistry, 1991
In these two papers the nature of the smear layer will be considered first. The clinical management will then be discussed, and finally, preparation of the dentine surface to receive the new bonding systems will be considered. A subsequent paper will discuss bonding agents.
R C, Paterson, A, Watts
openaire   +1 more source