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Dentin surface conditioning : the role of collagen in dentin bonding /Cederlund, Andreas, January 1900 (has links)
Diss. (sammanfattning) Stockholm : Karolinska institutet, 2002. / Härtill 7 uppsatser.
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Effects of sealant and self etching primer on enamel decalcification in vivoGhiz, Matthew A. January 2004 (has links)
Thesis (M.S.)--West Virginia University, 2004. / Title from document title page. Document formatted into pages; contains viii, 113 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 66-81).
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A comparison of demineralization between self etching primer and conventional sealant an in vitro study /Tanna, Nihar D. January 2003 (has links)
Thesis (M.S.)--West Virginia University, 2003. / Title from document title page. Document formatted into pages; contains ix, 107 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 76-83).
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Self-etching primers and adhesives aspects of microtensile bond strength, ultrastructure and nanoleakage /Chan, Kar-mun, January 2002 (has links)
Thesis (M. D. S.)--University of Hong Kong, 2002. / Also available in print.
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Self-etching primers and adhesives : aspects of microtensile bond strength, ultrastructure and nanoleakage /Chan, Kar-mun, January 2002 (has links)
Thesis (M.D.S.)--University of Hong Kong, 2002.
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A laboratory study of the adhesion of a restorative acrylic resin and a polycarboxylate cement on bovine enamel etched with fifty per cent phosphoric acidLee, Brian Dalvin, 1942- January 1970 (has links)
Indiana University-Purdue University Indianapolis (IUPUI) / The purpose of this laboratory study was to determine
whether etching of flat bovine enamel surfaces with a 50
per cent aqueous solution of phosphoric acid for 60 seconds
increases the bonding of a conventional restorative acrylic
resin and a new polycarboxylate cement. The test specimens
were subjected to 24 hours, 30 days and six months storage
in water and then subjected• to temperature stress cycling
and intermittent tensile stress cycling. A tensile test
was used to measure the bond strength of both materials.
The results of the Newman-Keul's test showed that
pretreating the enamel surface with 50 per cent phosphoric
acid significantly increased the bonding of the restorative
resin, and that the cavity sealer supplied by the manufacturer
further improved the resin attachment to enamel
surfaces previously etched with phosphoric acid. The
bonding of the resin to acid-etched enamel surfaces pretreated
with or without the cavity sealer was unaffected by
prolonged storage in water, temperature stress cycling, and
intermittent tensile stress cycling. However, a significant
reduction in the adhesion of the acrylic resin to polished-enamel
surfaces pretreated with or without the cavity sealer
was observed when the test specimens were subjected to the
same testing conditions.
The data obtained for the polycarboxylate cement test
specimens showed that etching of the enamel surface with
phosphoric acid also provided slightly higher adhesive
values than the control specimens.
Results obtained revealed that prolonged storage in
water, and temperature and mechanical stress cycling did not
affect the adhesion of the polycarboxylate cement to acid-etched
enamel surfaces. However, thermal and mechanical
stress cycling after prolonged storage in water appeared
to decrease the adhesion of the cement to polished enamel
surfaces.
When Ca45 was used to assess the marginal seal of resin
restorations placed into acid-etched Class V cavity preparations
in extracted human teeth, the autoradiographs showed that
etching of the cavity preparations with 50 per cent phosphoric
acid improved the marginal seal of the restorative resin
after one-week storage in water. When both the acid-etched
and control restorations were thermal stress cycled 2500
times at a 40°C temperature differential, a slight improvement
in the marginal seal of the acid-etched restorations
was observed.
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A laboratory comparison of the adhesion of unfilled and composite resins to acid etched enamelAubuchon, Robert W. (Robert Wayne), 1946- January 1973 (has links)
Indiana University-Purdue University Indianapolis (IUPUI) / The purpose of this laboratory study was to determine if the bond
strengths of composite resins and unfilled resins was affected similarly
when applied to enamel surfaces which had been previously etched with 50
per cent phosphoric acid. The test specimens were subjected to 24 hours,
30 days, and 6 months storage in water and then subjected to temperature
stress cycling and intermittent tensile stress cycling. A tensile test
was used to measure the bond strengths of the composite resins (Adaptic
and HL-72) and the unfilled resin (Sevriton).
The following results were obtained: (1) Pretreating the enamel surface
with 50 per cent phosphoric acid for 60 seconds significantly increased
the bond strength of composite resins; (2) when placed on acid
etched enamel, there was no significant difference in initial bond strengths
obtained for the Adaptic and unfilled Sevriton resins; (3) with prolonged
water storage, the Adaptic composite resins developed significant loss of
bond strength when compared to the unfilled Sevriton resins and the composite
HL-72 resins; (4) when Adaptic resins and the HL-72 resin specimens
were compared, there was no significant difference in initial bond strengths
but the HL-72 specimens were less affected by storage time.
Ca45 was used to assess the marginal seal of Adaptic, HL-72, and Sevriton
in acid etched and non-etched Class V restorations.
One-half of the specimens were thermal cycled 2500 times and
stored in water for one week. Control specimens were tested at the
end of one week without the thermal cycle.
On the basis of these results, it was concluded that acid etching
enhances the marginal seal of both composite and unfilled resins. Both
composite and unfilled resins experienced increased marginal leakage
when the acid etch preparations were thermal cycled, but there were no
observable difference in the marginal seal of unfilled resins and composite
resins when placed in acid etched restorations.
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The influence of surface characteristics on adhesion to enamel and dentine /Adebayo, Olabisi. January 2009 (has links)
Thesis (Ph.D.)--University of Melbourne, Melbourne Dental School, Faculty of Medicine, Dentistry and Health Sciences, 2010. / Typescript. Includes bibliographical references.
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Retention of resin restorations by means of enamel etching and by pinsAyers, Alvin James, Jr., 1941- January 1971 (has links)
Indiana University-Purdue University Indianapolis (IUPUI) / An investigation was conducted into the effect of acid etching
of the enamel and the use of pins on the retention of direct filling
resins when used for restoration of fractured incisor teeth. The
retention secured by these techniques as related to the cavity design
also was studied.
Four different cavity preparations were used. The retention of
the resin in all four was compared when there was no pretreatment of
the enamel, when the enamel was etched by 50 per cent phosphoric acid,
and when pins were used for retention. Retention was assessed on the
basis of resistance of the restoration to displacement by a lingual
force. No significant difference was observed in retention as related
to cavity design in the control specimens. In all four cavity
preparations, acid etching of the enamel and the use of two retentive
pins increased the resistance of the restorations to displacement.
(However; when only one "L" shaped retentive pin was employed in
Conjunction with a flat incisal preparation the force required to
accomplish displacement was no greater than for controls.) The acid
etch technique when employed with a cavity preparation that extended
1.7 mm. or more onto the lingual surface of the enamel generally
offered a higher resistance to lingual force than double pin retained
restorations. There was no significant difference between the
resistance offered by a circumferential preparation when the resin
was retained by either acid etching or by two pins.
In the acid etch technique the enamel surface area and its
distribution are important factors in retention.
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The effect of acid etching on remineralization of incipient caries lesions : a micro-ct study /Yeslam, Hanin E. January 2009 (has links)
Thesis (M.S.D.)--Indiana University School of Dentistry, 2009. / Title from PDF t. p. (viewed Feb. 10, 2010) Advisor(s): Masatoshi Ando, Chair of the Research Committee, Carlos Gonzalez-Cabezas, Melvin Lund, Tien-Min Gabriel Chu, Michael Cochran. Curriculum vitae. Includes abstract. Includes bibliographical references (leaves 64-70).
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