subject:(Ethanol wet bonding)

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Freie Universität Berlin

1. Aschendorff, Lena. Bond strength of fiber post adhesion inside the root canal after using different irrigation protocols and adhesive luting cements in vitro.

Degree: 2015, Freie Universität Berlin

URL: http://dx.doi.org/10.17169/refubium-9818

Objectives: The aim was to investigate the effects of three different irrigation protocols as a final rinse of the root canal on push-out bond strengths and durability of adhesion of fiber posts. The posts were inserted and luted pursuing two different adhesive strategies. Materials and methods: 120 human maxillary anterior teeth were endodontically treated. The teeth were divided into two groups: 1) self-adhesive resin cement (RX; n = 60) and 2) dual curing luting agent with an etch-and-rinse adhesive system (CX; n = 60). Post space preparation was realised. Afterwards, the root canals were irrigated using sodium hypochlorite 1 % (NaOCl) applied with passive ultrasonic irrigation followed by distilled water. Furthermore, these groups were further divided. The control groups (n= 20) did not get any further treatment. In chlorhexidine (CHX; n = 20) pretreatment groups, root canals were irrigated using chlorhexidine 2 %; and the ethanol groups (EtOH; n = 20) were irrigated using ethanol 99 % prior to the application of the luting agent and insertion of the posts. These groups were then divided into initial (n = 10) and storage/thermocycling (n = 10) groups. The specimens of the initial groups were cut into six slices of 1 mm diameter after a storage time of seven days. Respectively two slices represented the cervical, middle and apical part of the dental root. Bond strengths were evaluated using push-out tests. The specimens of the storage/thermocycling groups were stored after thermocycling between 5 and 55°C at 10.000 cycles for six months. Afterwards they were cut into slices and the push-out strength was tested. Results: Bond strengths were significantly affected by the adhesive strategy (p<0.0005), the irrigation protocol (p<0.0005) and the location inside the root canal (p<0.0005; repeated mesurement ANOVA). Irrigation protocol with EtOH significantly increased bond strengths irrespective of the luting agent used, compared to the control and CHX group (p<0.05; Tukey’s B). Conclusion: Final rinse with Ethanol significantly increased bond strength of the etch-and-rinse system and the self-adhesive resin cement by luting fiber posts into root canals. Therefore, Ethanol could be recommended as a final rinse for luting fiber posts using an ethanol-based etch-and-rinse adhesive system or self-adhesive resin cement. Clinical relevance: Irrigation of the root canal using ethanol seems to facilitate adhesive luting of fiber posts with the tested adhesive system and luting cements. Advisors/Committee Members: [email protected] (contact), w (gender), N.N. (firstReferee), N.N. (furtherReferee).

Subjects/Keywords: root canal dentin; push-out bond strength; pretreatment; fiber post; thermocycling; ethanol; wet bonding; chlorhexidine; 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit

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APA (6^th Edition):

Aschendorff, L. (2015). Bond strength of fiber post adhesion inside the root canal after using different irrigation protocols and adhesive luting cements in vitro. (Thesis). Freie Universität Berlin. Retrieved from http://dx.doi.org/10.17169/refubium-9818

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Aschendorff, Lena. “Bond strength of fiber post adhesion inside the root canal after using different irrigation protocols and adhesive luting cements in vitro.” 2015. Thesis, Freie Universität Berlin. Accessed March 08, 2021. http://dx.doi.org/10.17169/refubium-9818.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Aschendorff, Lena. “Bond strength of fiber post adhesion inside the root canal after using different irrigation protocols and adhesive luting cements in vitro.” 2015. Web. 08 Mar 2021.

Vancouver:

Aschendorff L. Bond strength of fiber post adhesion inside the root canal after using different irrigation protocols and adhesive luting cements in vitro. [Internet] [Thesis]. Freie Universität Berlin; 2015. [cited 2021 Mar 08]. Available from: http://dx.doi.org/10.17169/refubium-9818.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Aschendorff L. Bond strength of fiber post adhesion inside the root canal after using different irrigation protocols and adhesive luting cements in vitro. [Thesis]. Freie Universität Berlin; 2015. Available from: http://dx.doi.org/10.17169/refubium-9818

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

2. Talungchit, Supitcha. Enhancing resin-dentin bond effectiveness and durability: the role of ethanol-wet bonding technique, MMP-inhibition (chlorhexidine), and photoinitiator systems.

Degree: PhD, Oral Science, 2012, University of Iowa

URL: https://ir.uiowa.edu/etd/2996

Current hydrophilic resin adhesives undergo hydrolytic degradation and show a decrease in bond strength over time. Nanoleakage and ultrastructure studies suggest that inadequately infiltrated collagen leads to enzymatic degradation and resin-dentin bond failure. Adequate degree of conversion (DC) of resin adhesives is also critical to resin-dentin bond strength and durability. The long-term goal of this dissertation is the realization of durable resin-dentin bond. It is hypothesized that ethanol-wet bonding technique (EW) may effectively facilitate the infiltration of hydrophobic monomers into hydrophilic acid-etched dentin by maintaining interfibrillar spacing, stiffening collagen matrix, and improving adhesive resin-demineralized dentin matrix miscibility. Chlorhexidine (CHX), Matrix Metalloproteinase-inhibitor (MMP-inhibitor), should further preserve collagen integrity and resin-dentin bond strength. Moreover, efficient photoinitiator systems that broaden light absorptivity and provide more reactive radicals may enhance polymerization. In this dissertation, a clinically-relevant EW protocol, 3×15s absolute ethanol rinsing, provided significantly higher microtensile bond strength (πTBS) of a hydrophobic resin (70%BisGMA/30%TEGDMA) to dentin as compared to water-wet bonding (WW). All groups showed no significant drop of πTBS after 1-year storage except EW without CHX application, showing marginally significant reduction in πTBS (p=0.0558) suggesting MMP-inhibition by CHX in EW. These results were consistent with subsequent experiments. EW maintained interfibrillar width and hybrid layer thickness for resin infiltration and retention. Monomer molar concentration across the hybrid layer was significantly higher in EW than WW. An application of 2% CHX diacetate further preserved collagen banding in EW. WW showed more generalized spotted nanoleakage, while EW presented localized reticular nanoleakage. The use of Irgacure 819 (BAPO) alone and in combination with benzoyl peroxide (BPO) or camphorquinone (CQ) increased DC of hydrophobic and hydrophilic resins over resins containing the CQ/amine (4E) control. Only BAPO and BAPO/BPO demonstrated significantly higher immediate shear bond strength than CQ/4E. Within the limitations of these studies, EW improved resin-dentin bond durability by maintaining collagen interfibrillar spaces for efficient infiltration of a hydrophobic BisGMA/TEGDMA resin resulting in significantly higher πTBS and monomer molar concentrations with less nanoleakage distribution within the hybrid layer than WW. CHX further maintained collagen integrity and πTBS in EW. BAPO is a potential… Advisors/Committee Members: Armstrong, Steven R. (supervisor).

Subjects/Keywords: Chlorhexidine; Dentin adhesion; Ethanol-wet bonding; MMP-inhibition; Photoinitiator; Resin adhesives; Oral Biology and Oral Pathology

…advice on ethanol-wet bonding from Dr. David Pashley who also provides materials for my… …It is hypothesized that ethanol-wet bonding technique (EW) may effectively… …44 1.6.3 Ethanol-wet bonding… …81 CHAPTER 2 EFFECT OF ETHANOL-WET BONDING AND CHLORHEXIDINE ON RESIN-DENTIN BOND… …96 viii CHAPTER 3 EFFECT OF ETHANOL-WET BONDING AND CHLORHEXIDINE ON HYBRID LAYER…

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Record Details Similar Records Cite « Share

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Talungchit, S. (2012). Enhancing resin-dentin bond effectiveness and durability: the role of ethanol-wet bonding technique, MMP-inhibition (chlorhexidine), and photoinitiator systems. (Doctoral Dissertation). University of Iowa. Retrieved from https://ir.uiowa.edu/etd/2996

Chicago Manual of Style (16^th Edition):

Talungchit, Supitcha. “Enhancing resin-dentin bond effectiveness and durability: the role of ethanol-wet bonding technique, MMP-inhibition (chlorhexidine), and photoinitiator systems.” 2012. Doctoral Dissertation, University of Iowa. Accessed March 08, 2021. https://ir.uiowa.edu/etd/2996.

MLA Handbook (7^th Edition):

Vancouver:

Talungchit S. Enhancing resin-dentin bond effectiveness and durability: the role of ethanol-wet bonding technique, MMP-inhibition (chlorhexidine), and photoinitiator systems. [Internet] [Doctoral dissertation]. University of Iowa; 2012. [cited 2021 Mar 08]. Available from: https://ir.uiowa.edu/etd/2996.

Council of Science Editors:

Talungchit S. Enhancing resin-dentin bond effectiveness and durability: the role of ethanol-wet bonding technique, MMP-inhibition (chlorhexidine), and photoinitiator systems. [Doctoral Dissertation]. University of Iowa; 2012. Available from: https://ir.uiowa.edu/etd/2996

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