Chemical treatment of the intra-canal dentin surface: a new approach to modify dentin hydrophobicity

Gaitán-Fonseca, César; Collart-Dutilleul, Pierre-Yves; Semetey, Vincent; Romieu, Olivier; Cruz, Roel; Flores, Héctor; Cuisinier, Frédéric; Pérez, Elı́as; Pozos‐Guillén, Amaury

doi:10.1590/1678-7757201302168

Cited by 3 publications

(3 citation statements)

References 26 publications

(31 reference statements)

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“…In all of the surfaces coated with OTS, the contract angle was measured immediately afterward and the latter were at an angle greater than 90 degrees, indicating that the surface had undergone a modification from hydrophilic to hydrophobic. These surfaces maintained contact angles higher than 90 degrees after having been subjected to citric acid for 2 months (10,11,18).…”

Section: Discussionmentioning

confidence: 99%

“…In the investigations, this image presents a less irregular surface than those we obtained, probably because these authors subjected only the silanized specimens to the demineralization process for 168h and, in the present investigation, these remained for 1,440h, that is, of 2 months. In the EDS or EDX (energydispersive X-ray spectroscopy) analysis was conducted to determine the percentage elements constituted the surface of the analyzed specimen, as carried out in later investigations (10,16,18).…”

Section: Discussionmentioning

confidence: 99%

“…In the literature, there are reports on the chemical modification of intra-radicular dentine by silanization with octadecyltrichlorosilane (OTS) and octadecyltrietoxisilane (TEOS). In these studies, it was demonstrated that the dentin surface acquired a better root seal on proceeding from a hydrophilic to a hydrophobic state after silanization with OTS (15,16,18).…”

Section: Introductionmentioning

confidence: 99%

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In-Vitro Silanization of Dental Enamel to Prevent Demineralization

Gutiérrez-Camacho

Aguilera-Galaviz

Sánchez-Balderas

et al. 2021

Odovtos - Int J Dent Sc

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Introduction. Caries is a multifactorial disease that can negatively affect dental tissues through the demineralization process, which produces acids deriving from the metabolism of carbohydrates. Some strategies to prevent this process have been proposed, such as topical fluoride application, resin-based restorations, pit and fissures sealers, infiltrated resins, vaccines, mouthwashes, and several brushing techniques. Objective. To evaluate in vitro enamel hydrophobic modification as a method of prevention against demineralization. Materials and Methods. A descriptive and comparative study was carried out. Thirty premolars extracted for orthodontic reasons were obtained, encapsulated in epoxy resin, sectioned, and sanded to obtain specimens 3mm in thickness. The samples were pretreated with NaOCl and EDTA, incubated with 1 and 4% octadeyltrichlorosilane (OTS) or with 3 and 6% octadecyltriethoxysilane (TEOS) for 5min and for 8h. Subsequently, the samples were immersed in citric acid for 2 months. The samples were analyzed by their contact angle, infrared spectroscopy, scanning electron microscopy, atomic and confocal force, before and after treatment in citric acid. Results. The samples coated with 1 and 4% OTS for 5min and 8h kept the silanizing agent on their surface after 2 months in citric acid. The treatment with TEOS was only effective at 6% with a reaction time of 5min. Conclusions. The modification with 1 and 4% OTS protects the surface of the tooth enamel from demineralization in acidic medium. The results indicate that treatment with 4% OTS is effective from 5min, which makes it appropriate in clinical practice.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

In-Vitro Silanization of Dental Enamel to Prevent Demineralization

Gutiérrez-Camacho

Aguilera-Galaviz

Sánchez-Balderas

et al. 2021

Odovtos - Int J Dent Sc

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Intraradicular dentine silanization by a new silicon-based endodontic sealer

Patiño‐Herrera

Rueda

Fonseca

et al. 2016

International Journal of Adhesion and Adhesives

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Test methods for bond strength of glass fiber posts to dentin: A review

Santos

Carlo

Barros

2016

The Journal of Adhesion

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In this paper, a review of the test methods for bond strength of glass fiber posts to dentin is presented. The main variables that influence the bond strength tests are related to substrate, to specimen properties, specimen preparation and test methodology. The impact of these variables on the test outcome is analyzed. The search was performed on studies published between 2007 and 2015. Most of the tests carried out, in the literature, were the push-out (75%), pull-out (13%) and microtensile (11,9%) tests, showing an inversion compared to the results found in studies published between 2005 and 2010, when push-out test was used in a proportion of 2% and microtensile test in a proportion of 67%. The push-out test emerged as a practical tool for evaluating the interfacial shear strength between fiber post and root canal walls.Fiber posts have been widely used in endodontically treated teeth in the last years. One of the advantages of using fiber posts is the use of adhesive bonding technique, which requires minimal intervention on the dentin surface. In addition, fiber posts have an elastic modulus similar to dentin, resulting in more homogeneous stress distribution along the root canal system. Thus, fiber post minimizes the risk of root fractures and lead to more favorable failure mode than metallic posts.The durability of restored endodontically treated teeth depends on many basic factors [1] including the amount of remaining coronal structure, restorative procedures and the materials used [2,3], which appear to be the key factors affecting the longevity of the tooth. Although low percentage failure rates and satisfactory clinical performance have been reported when fiber posts were used [4, 5, 6], pulpless teeth are still considered more vulnerable and susceptible to fracture in comparison to vital teeth [7].The clinical success of a recovery depends on the quality and durability of the bonding joint between the fiber post and the tooth structure. Therefore, it is fundamental that the test method used to evaluate the bond strength provides accurate information on the materials performance [8]. Reviews published in the decades of 1990 and 2010 [9-13] showed a relationship between the conditions for adhesion of post to the substrate, including cement application mode, post pretreatment and sample storage conditions, but only few discussed the variables that influence the bond strength tests. Downloaded by [Florida Atlantic University] at 16:14 06 June 2016 A c c e p t e d M a n u s c r i p t 3The bond strength tests might be influenced by many variables which include: the specimen design, the size of the adhesion surface area, the loading configuration and the type of materials [2,[16][17][18]. The high modulus of elasticity of a bonded composite, the thickness of the adhesive layer between the dentin of the root canal and the post, the format of post and the canal, among others, are variables that influence the stress distribution along the bonded interface [3,18,19] and consequently the outcome of the bond streng...

show abstract

Chemical treatment of the intra-canal dentin surface: a new approach to modify dentin hydrophobicity

Cited by 3 publications

References 26 publications

In-Vitro Silanization of Dental Enamel to Prevent Demineralization

In-Vitro Silanization of Dental Enamel to Prevent Demineralization

Intraradicular dentine silanization by a new silicon-based endodontic sealer

Test methods for bond strength of glass fiber posts to dentin: A review

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