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Self-etch cements are not as effective as classic bonding

 
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john kanca



Joined: 14 May 2005
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PostPosted: Fri Jun 12, 2009 7:57 am    Post subject: Self-etch cements are not as effective as classic bonding Reply with quote

- De Munck J, Vargas M, VanLanduyt K, Hikita K, Lambrechts P, VanMeerbeek B. Bonding of an auto-adhesive luting material to enamel and dentin. Dent Mater. 2004; 20: 963-71.

- Abo-Hamar SE, Hiller K-A, Jung H, Federlin M, Friedl K-H, Schmalz G. Bond strength of a new universal self-adhesive resin luting cement to dentin and enamel. Clin Oral Investig. 2005; 9: 161-7.

- Hikita K, DeMunck J, Ishijima T, Maida T, Lambrechts P, VanMeerbeek B. Bonding effectiveness of adhesive luting agents to enamel and dentin. Dent Mater. 2004; 20: 963-71.

- Trajtenberg CP, Pinzon LM, Powers JM. Bonding of a novel Self-Adhesive Cement to Tooth Substrates. The Dental Advisor 2000; 20.

- TorresC , PintoL, LeonelA, Pucci C, Borges A. Interaction between total-etch and self-etch adhesives and conventional and self-adhesive resin cements Brazilian Journal of Oral Sciences, Vol. 6, No. 22, 2007, pp. 1376-1382
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john kanca



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PostPosted: Fri Jun 12, 2009 8:01 am    Post subject: Reply with quote

Microleakage of porcelain veneer restorations bonded to enamel and dentin with a new self-adhesive resin-based dental cement.Ibarra G, Johnson GH, Geurtsen W, Vargas MA.
School of Dentistry, Department of Restorative Dentistry, University of Washington, Seattle, WA 98195-7456, USA. gibarra@u.washington.edu

Cementation technique of bonded ceramic restorations is a time-consuming and technique-sensitive procedure critical to long-term success. OBJECTIVE: Evaluate the performance of a self-adhesive, modified-resin dental cement (Rely-X UniCem, 3M-ESPE) for the cementation of ceramic veneer restorations without previous conditioning of the tooth surface, and in combination with a one-bottle adhesive and a self-etching adhesive. METHODS: Thirty-six premolars received a veneer preparation that extended into dentin. Leucite-reinforced pressed glass ceramic (Empress 1) veneers were cemented following manufacturers' instructions, according to the following treatment groups (n=9): (1) Variolink-Excite Ivoclar-Vivadent (V+E control), (2) Unicem+Single Bond 3M-ESPE (U+SB), (3) Unicem+Adper Prompt L-Pop 3M-ESPE (U+AP), (4) Unicem 3M-ESPE (U). After 24h storage at 37 degrees C, teeth were thermocycled (2000 cycles) at 5 and 55 degrees C, immersed in ammoniacal silver nitrate for 24h, placed in a developer solution overnight and sectioned using a slow-speed saw. Three 1mm longitudinal sections were obtained from each tooth and evaluated for leakage with a microscope (1x to 4x). Imaging software was used to measure stain penetration along the dentin and enamel surfaces. RESULTS: ANOVA with SNK (alpha=0.05) revealed that on dentin, U had significantly less leakage than U+SB and U+AP, but no different than V+E; on enamel U had leakage values that were significantly greater than the groups with adhesives. SIGNIFICANCE: The self-adhesive cement U gave low leakage on dentin that was comparable to the cement that employed an adhesive for sealing dentin, whereas this cement benefits from use of an adhesive when cementing to enamel.
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Ekrause



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PostPosted: Fri Jun 12, 2009 2:55 pm    Post subject: Reply with quote

I think this deserves a big..... DUH!!!
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john kanca



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PostPosted: Sat Jun 13, 2009 6:10 am    Post subject: Reply with quote

Perhaps for those here it might be, but it is of value to have the references handy.
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