Search Results - "Spngberg, Larz S.W."

Influence of entrapped air on the accuracy of leakage studies using dye penetration methods by Spångberg, L S, Acierno, T G, Yongbum Cha, B

“…Entrapped air can inhibit dye penetration resulting in failure to demonstrate existing voids. A new approach to study dye penetration was developed in which…”
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In vitro cytotoxicity of root canal filling materials: 1. Gutta-percha by Pascon, E A, Spångberg, L S

“…Gutta-percha (GP) has been the most widely used root canal filling material because of its well-known low toxicity. The inertness of GP, however, was…”
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A prospective cohort study of endodontic treatments of 1,369 root canals: results after 5 years by Ricucci, Domenico, MD, DDS, Russo, John, DMD, Rutberg, Michael, DMD, Burleson, Josef A., PhD, Spångberg, Larz S.W., DDS, PhD

“…Objective The purpose of this prospective study was: 1) to follow-up a large number of endodontic treatments performed by a single operator, periodically…”
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Toxicity of sonicated extracts of Bacteroides gingivalis on human pulpal cells and L929 cells in vitro by Pissiotis, E, Spångberg, L S

“…Human pulpal fibroblasts and L929 cells were treated with sonicated extracts of two strains of Bacteroides gingivalis (W83 and ATCC 33277). The cell reaction…”
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Machining efficiency and wear resistance of nickel-titanium endodontic files by Kazemi, Reza B., Stenman, Evert, Spngberg, Larz S.W.

“…Nickel-titanium endodontic files are more flexible than stainless steel. Little information is reported concerning machining efficiency and wear resistance of…”
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Root canal dentinal tubule disinfection by Safavi, K E, Spangberg, L S, Langeland, K

“…Dentinal tubules of the root canal walls of human teeth were infected in vitro with a known bacterial isolate. The roots were exposed to either calcium…”
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Comparison of apical leakage in root canals obturated with various gutta percha techniques using a dye vacuum tracing method by Dalat, D M, Spångberg, L S

“…In this study, residual apical microlumina remaining after obturation with five different gutta-percha obturation methods were traced with an efficient vacuum…”
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Give me a place to stand and I will move the earth by Spångberg, Larz S.W.

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Biological evaluation of collagen gels containing calcium hydroxide and hydroxyapatite by Pissiotis, E, Spangberg, L S

“…Dentinal chips and different biocompatible materials have been used in the past as apical plugs to enhance healing and simplify obturation. The purpose of this…”
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Machining efficiency of endodontic K files and Hedstrom files by Stenman, E, Spangberg, L S

“…Methods for the objective evaluation of the machining property of endodontic files were described earlier. These methods were used in this investigation to…”
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Machining efficiency of Flex-R, K-Flex, Trio-Cut, and S Files by Stenman, E, Spångberg, L S

“…Many root canal instruments with several different designs have been introduced during recent years. This article evaluates the machining properties of four…”
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Machining efficiency of endodontic files: a new methodology by Stenman, E, Spångberg, L S

“…The ability of endodontic files to effectively remove hard tissues is difficult to assess as results from published investigations often vary considerably. An…”
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An in vitro method for longitudinal evaluation of toxicity of endodontic sealers by Safavi, K E, Spångberg, L S, Costa, Jr, N S, Sapounas, G

“…An in vitro method for longitudinal evaluation of root canal sealers was developed and applied. A newly introduced cell culture chamber was used to evaluate…”
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