Long-Term Bond Strength of Two Benzalkonium Chloride-Modified Adhesive Systems to Eroded Dentin.

Flury, Simon; Lussi, Adrian; Peutzfeldt, Anne (2017). Long-Term Bond Strength of Two Benzalkonium Chloride-Modified Adhesive Systems to Eroded Dentin. BioMed research international, 2017, p. 1207208. Hindawi Publishing Corporation 10.1155/2017/1207208

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This study investigated the effect of benzalkonium chloride (BAC) modification of two adhesive systems on long-term bond strength to normal and artificially eroded dentin. A total of 128 extracted human molars were sectioned and the buccal and oral surfaces of each molar were ground until the dentin. One half was left untreated (normal dentin) while the other half underwent artificial erosion. Resin composite was bonded to the buccal or oral surface following treatment with Adper Scotchbond 1XT or OptiBond FL without or with 1% BAC incorporation. Shear bond strength (SBS) was measured after 24 h (100% humidity, 37°C) or 1 year (tap water, 37°C). SBS results were statistically analyzed (α = 0.05). SBS was significantly lower to artificially eroded dentin than to normal dentin (p < 0.001). Storage for 1 year had no effect on SBS to normal dentin but led to a significant decrease in SBS to artificially eroded dentin (p < 0.001). BAC incorporation decreased the 24 h SBS to normal dentin (p = 0.018), increased the 24 h SBS to eroded dentin (p = 0.001), and had no effect on the 1-year SBS for either substrate. Consequently, BAC incorporation did not improve bond durability.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Preventive, Restorative and Pediatric Dentistry

UniBE Contributor:

Flury, Simon; Lussi, Adrian and Peutzfeldt, Anne

Subjects:

600 Technology > 610 Medicine & health

ISSN:

2314-6133

Publisher:

Hindawi Publishing Corporation

Language:

English

Submitter:

Simon Flury

Date Deposited:

29 Sep 2017 15:03

Last Modified:

01 Oct 2017 02:23

Publisher DOI:

10.1155/2017/1207208

PubMed ID:

28875148

BORIS DOI:

10.7892/boris.105334

URI:

https://boris.unibe.ch/id/eprint/105334

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