scholarly journals Enhancement performance of application mussel-biomimetic adhesive primer for dentin adhesives

RSC Advances ◽  
2020 ◽  
Vol 10 (20) ◽  
pp. 12035-12046
Author(s):  
Jiahui Zhang ◽  
Ying Zhao ◽  
Zilu Tian ◽  
Jiufu Zhu ◽  
Zuosen Shi ◽  
...  
Keyword(s):  
Composite Resins ◽  
Dentin Adhesives

In this study, a bioinspired adhesive primer monomer was prepared and evaluated for durable adhesion between dentin and composite resins.

Effect of “Stress-Absorbing” Dentin Adhesives on the Interaction of Composites with Human Dentin an SEM Study.

1998 ◽  
Vol 4 (S2) ◽  
pp. 944-945
Author(s):  
Carlos Francci ◽  
Andre V. Ritter ◽  
Jorge Perdigao ◽  
Bruno T. Rosa
Keyword(s):  
Composite Resins ◽  
Resin Matrix ◽  
Inorganic Filler ◽  
Shrinkage Stress ◽  
Hybrid Layer ◽  
Low Viscosity ◽  
Dentin Adhesives ◽  
Sem Study ◽  
Human Dentin ◽  
One Step

Current dental restorative materials include tooth-colored materials called composite resins, which are made of a resin matrix and an inorganic filler coated with a silane coupling agent. Composite resins can shrink considerably upon setting. This shrinkage stress can generate gaps along the composite/dentin interface. Low-viscosity fluid resins and primers have been used to bond composite resins to dentin. The adhesive resin layer may be able to act as an elastic medium and compensate for the polymerization stresses that develop within the composite resin. The hypothesis tested in this study was that the use of a “stress-absorbing” intermediary dentin adhesive would result in lower incidence of gaps at the restoration/cavity interface and in a thicker resin/dentin interdifusion layer or hybrid layer.Dentin disks with a thickness of 900 um±100 μm were obtained from extracted human molars and assigned to two adhesive systems (One-Step [OS] and Single Bond [SB]), three degrees of intermediary “stress-absorbing” treatments (none, Scotchbond Multi-Purpose [SBMP], and OptiBond FL [OB]) and two composite resins (Ælite-Flo [ÆF] and Z100

scholarly journals Biocompatibility of Resin-Modified Filling Materials

2000 ◽  
Vol 11 (3) ◽  
pp. 333-355 ◽  
Author(s):  
W. Geurtsen
Keyword(s):  
Soft Tissues ◽  
Biological Effects ◽  
Dental Materials ◽  
Composite Resins ◽  
Biological Interactions ◽  
Inflammatory Reactions ◽  
Filling Materials ◽  
Dental Restorations ◽  
Dentin Adhesives ◽  
Hydrophilic Monomer

Increasing numbers of resin-based dental restorations have been placed over the past decade. During this same period, the public interest in the local and especially systemic adverse effects caused by dental materials has increased significantly It has been found that each resin-based material releases several components into the oral environment. In particular, the comonomer triethyleneglycol di-methacrylate (TEGDMA), and the 'hydrophilic' monomer, 2-hydroxy-ethyl-methacrylate (HEMA), are leached out from various composite resins and 'adhesive' materials (e.g., resin-modified glass-ionomer cements [GICs] and dentin adhesives) in considerable amounts during the first 24 hours after polymerization. Numerous unbound resin components may leach into saliva during the initial phase after polymerization, and later, due to degradation or erosion of the resinous restoration. Those substances may be systemically distributed and could potentially cause adverse systemic effects in patients. In addition, absorption of organic substances from unpolymerized material, through unprotected skin due to manual contact may pose a special risk for dental personnel. This is borne out by the increasing numbers of dental nurses, technicians, and dentists who present with allergic reactions to one or more resin components like HEMA glutaraldehyde ethyleneglycol di-methacrylate (EGDMA), and dibenzoyl peroxide (DPO). However, it must be emphasized that except for conventional composite resins, data reported on the release of substances from resin-based materials are scarce. There is very little reliable information with respect to the biological interactions between resin components and various tissues. Those interactions may be either protective, like absorption to dentin, or detrimental, e.g., inflammatory reactions of soft tissues Microbial effects have also been observed which may contribute indirectly to caries and irritation of the pulp. Therefore, it is critical, both for our patients and for the profession, that the biological effects of resin-based filling materials be clarified in the near future

The concerted use of SEM, TEM, and SCM for examination of resin-dentin interfaces

1994 ◽  
Vol 52 ◽  
pp. 476-477
Author(s):  
B. Van Meerbeek ◽  
L. J. Conn ◽  
E. S. Duke
Keyword(s):  
Surface Layer ◽  
Stress Distribution ◽  
Phosphoric Acid ◽  
Bonding Mechanism ◽  
Restorative Dentistry ◽  
Dental Adhesive ◽  
Low Viscosity ◽  
Dentin Adhesives ◽  
Acid Etch ◽  
Tooth Tissue

Restoration of decayed teeth with tooth-colored materials that can be bonded to tooth tissue has been a highly desirable property in restorative dentistry for many years. Advantages of such an adhesive restorative technique over conventional techniques using non-adhesive metal-based restoratives include improved restoration retention with minimal sacrifice of sound tooth tissue for retention purposes, superior adaptation and sealing of the restoration margins in prevention of caries recurrence, improved stress distribution across the tooth-restoration interface throughout the whole tooth, and even reinforcement of weakened tooth structures. The dental adhesive technology is rapidly changing. An efficient resin bond to enamel has already long been achieved. Its bonding mechanism has been fully elucidated and has proven to be a durable and reliable clinical treatment. However, bonding to dentin represents a greater challenge. After the failures of a dentin acid-etch technique in imitation of the enamel phosphoric-acid-etch technique and a bonding procedure based on chemical adhesion, modern dentin adhesives are currently believed to bond to dentin by a micromechanical hybridization process. This process is developed by an initial demineralization of the dentin surface layer with acid etchants exposing a collagen fibril arrangement with interfibrillar microporosities that subsequently become impregnated by low-viscosity monomers. Although the development of such a hybridization process has well been documented in the literature, questions remain with respect to parameters of-primary importance to adhesive efficacy.

In situ evaluation of micro and nanofilled load on biofilm retention of composite resins submitted to different surface treatments

2015 ◽  
Vol 2 ◽  
pp. 12-16
Author(s):  
Andre Afif Elossais ◽  
Gleice Gomes dos Reis ◽  
Luis Fernando Benitez Macorini ◽  
Pedro Gregol da Silva ◽  
Anna Thereza Peroba Rezende Ramos ◽  
...  
Keyword(s):  
Surface Treatments ◽  
Composite Resins

Interactions Between Dental Composite Resins and Saliva A comparative biochemical in vitro study

2019 ◽  
Vol 56 (3) ◽  
pp. 529-533
Author(s):  
Mihaela Pantea ◽  
Diana Andreea Ighigeanu ◽  
Alexandra Totan ◽  
Maria Greabu ◽  
Daniela Miricescu ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
In Vitro Study ◽  
Composite Resins ◽  
Vitro Study ◽  
Dental Composite ◽  
Gamma Glutamyl Transferase ◽  
Specific Protocol ◽  
Dental Composite Resins ◽  
Glutamyl Transferase

This in vitro study analyses the biochemical interaction between saliva and three types of dental composite resins (a direct resin, an indirect resin and a dual-cure resin used for cementation of indirect dental restorations). The resin samples were obtained following a specific protocol and in line with the producers� recommendations; the resin samples were incubated with saliva samples collected from 19 healthy volunteers. The obtained results showed that the tested composite resins did not produce significant changes in oxidative stress parameters that were analysed (albumin, uric acid, GGT / gamma glutamyl transferase, OXSR-1 / oxidative stress responsive kinase 1) and do not influence the inflammatory salivary status reflected by the levels of IL-6 - an inflammatory marker.

Laser Therapy Evaluation in Complications of Restorations by Total-Etch Technique

2018 ◽  
Vol 69 (4) ◽  
pp. 921-925
Author(s):  
Cristina Angela Ghiorghe ◽  
Andra Claudia Gamen ◽  
Tiberiu Tirca ◽  
Sorin Andrian ◽  
Anca Melian ◽  
...  
Keyword(s):  
Laser Treatment ◽  
Laser Therapy ◽  
Hybrid Composite ◽  
Study Groups ◽  
Composite Resins ◽  
Single Bond ◽  
Class Iii ◽  
Anterior Teeth ◽  
Carious Lesions ◽  
Etch And Rinse

The aim of this study was to evaluate the efficiency of laser therapy in post-operative sensitivity by Visual Analogue Scale (VAS) to the 57 patients after restoration with two different resins composite. In the first group (28 patients, 30 teeth) it was restored the cavity class I Black with micro-hybrid composite Filtek Z250 - Adper Single Bond (3M/ESPE). In the second group (29 patients, 30 teeth) it was restored the cavity class III Black with nano-hybrid composite Ceram X One Sphere Tec-Prime and Bond One (Etch&Rinse) (Dentsply). The restorative treatments were performed by the same practitioner on posterior and anterior teeth diagnosed with mid-sized chronic carious lesions. Total etch (etch and rinse) strategy of adhesion was used for both composite resins. The laser treatment was performed in 2 sessions at 48 hours and after 7 days, for both study groups using laser Whitening Lase II (DMC Dental). Mean scores for VAS indices decreased significantly at 48 hours and 7 days, following laser treatment for all the investigated parameters (materials, sex, age) (p [ 0.05).

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