It has been proposed that a resin coating can serve as a means to protect dental structure after preparation of the tooth for indirect restorations, sealing the exposed dentin. The resin coating is applied on the cut surfaces immediately after tooth preparation and before making an impression by assembling a dentin bonding system and a flowable composite. Resin coatings minimize pulp irritation and improve the bond strength between a resin cement and tooth when bonding the restoration to tooth. Recently, thin-film coating dental materials based on all-in-one adhesive technology were introduced for resin coating of indirect restorations. The thin coating materials are applied in a single clinical step and create a barrier-like film layer on the prepared dentin. The thin coatings play an important role in protecting the dentin from physical, chemical, and biological irritation. In addition, these thin-film coating materials reportedly prevent marginal leakage beneath inlays or crown restorations. In light of the many benefits provided by such a protective layer, these all-in-one adhesive materials may therefore also have the potential to cover exposed root dentin surfaces and prevent caries formation. In this paper, recent progress of the dental coating materials and their clinical applications are reviewed.
Momoi, Y.; Fujitani, M.; Fukushima, M.; Hayashi, M.; Imazato, S.; Kubo, S.; Nikaido, T.; Shimizu, A.; Unemori, M.; Yamaki, M. Clinical guidelines for treating caries in adults following a minimal intervention policy, evidence and consensus based report. J. Dent. 2012, 40, 95–105, doi:10.1016/j.jdent.2011.10.011.
[3]
Nakabayashi, N.; Nakamura, M.; Yasuda, N. Hybrid layer as a dentin bonding mechanism. J. Aesthet. Dent. 1991, 3, 133–138, doi:10.1111/j.1708-8240.1991.tb00985.x.
[4]
Fontana, M.; Gonzalez–Cabezas, C. Secondary caries and restoration replacement: An unresolved problem. Compend. Contin. Educ. Dent. 2000, 21, 15–26.
[5]
Tsuchiya, S.; Nikaido, T.; Sonoda, H.; Foxton, R.M.; Tagami, J. Ultrastructure of the dentin-adhesive interface after acid-base challenge. J. Adhes. Dent. 2004, 6, 183–190.
[6]
Waidyasekera, K.; Nikaido, T.; Weerasinghe, D.S.; Ichinose, S.; Tagami, J. Reinforcement of dentin in self-etch adhesive technology: A new concept. J. Dent. 2009, 37, 604–609, doi:10.1016/j.jdent.2009.03.021.
[7]
Nurrohman, H.; Nikaido, T.; Takagaki, T.; Sadr, A.; Ichinose, S.; Tagami, J. Hydroxyapatite crystal protection against acid-attack beneath resin-dentin interface with four adhesives. TEM and crystallography evidence. Dent. Mater. 2012, 28, e89–e98, doi:10.1016/j.dental.2012.04.025.
[8]
Nikaido, T.; Weerasinghe, D.D.; Waidyasekera, K.; Inoue, G.; Foxton, R.M.; Tagami, J. Assessment of the nanostructure of acid-base resistant zone by the application of all-in-one adhesive systems: Super dentin formation. Biomed. Mater. Eng. 2009, 19, 163–171.
[9]
Li, N.; Nikaido, T.; Takagaki, T.; Sadr, A.; Makishi, P.; Chen, J.; Tagami, J. The role of functional monomers in bonding to enamel: Acid-base resistant zone and bonding performance. J. Dent. 2010, 38, 722–730, doi:10.1016/j.jdent.2010.05.015.
[10]
Yoshida, Y.; Nagakane, K.; Fukuda, R.; Okazaki, M.; Shintani, H.; Inoue, S.; Tagawa, Y.; Suzuki, K.; De Munck, J.; Van Meerbeek, B. Comparative study on adhesive performance of functional monomers. J. Dent. Res. 2004, 83, 454–458, doi:10.1177/154405910408300604.
[11]
Nikaido, T.; Yoda, A.; Foxton, R.M.; Tagami, J. A resin coating technique to achieve minimal intervention in indirect resin composites: A case report. Int. Chin. J. Dent. 2003, 3, 62–68.
[12]
Islam, M.R.; Takada, T.; Weerasinghe, D.S.; Uzzaman, M.A.; Foxton, R.M.; Nikaido, T.; Tagami, T. Effect of resin coating on adhesion of composite crown restoration. Dent. Mater. J. 2006, 25, 272–279, doi:10.4012/dmj.25.272.
Inokoshi, S. Temporary sealing-pulp and dentin protection using low viscosity composite (in Japanese). Adhes. Dent. 1992, 10, 250.
[16]
Sato, M.; Goto, H.; Inai, N.; Nikaido, T.; Tagami, J.; Inokoshi, S.; Yamada, T.; Takatsu, T. How to use “Liner Bond System” as a dentin and pulp protector in indirect restorations (in Japanese). Adhes. Dent. 1994, 12, 41–48.
[17]
Otsuki, M.; Yamada, T.; Inokoshi, S.; Takatsu, T.; Hosoda, H. Establishment of a composite resin inlay technique part 7. Use of low viscous resin (in Japanese). Jpn. J. Conserv. Dent. 1993, 36, 1324–1330.
[18]
Jayasooriya, P.R.; Pereira, P.N.R.; Nikaido, T.; Tagami, J. Effect of a “Resin-coating” on the interfacial adaptation of composite inlays. Oper. Dent. 2003, 28, 28–35.
[19]
Kosaka, S.; Kajihara, H.; Kurashige, H.; Tanaka, T. Effect of resin coating as a means of preventing marginal leakage beneath full cast crowns. Dent. Mater. J. 2005, 24, 117–122, doi:10.4012/dmj.24.117.
[20]
Nikaido, T.; Cho, E.; Nakajima, M.; Tashiro, H.; Toba, S.; Burrow, M.F.; Tagami, J. Tensile bond strengths of resin cements to bovine dentin using resin coating. Am. J. Dent. 2003, 16, 41–46.
[21]
Kitasako, Y.; Burrow, M.F.; Nikaido, T.; Tagami, J. Effect of resin coating technique on dentin bond strengths over 3 years. J. Esthet. Restor. Dent. 2002, 14, 115–122, doi:10.1111/j.1708-8240.2002.tb00160.x.
[22]
Nikaido, T.; Kitasako, Y.; Burrow, M.F.; Umino, A.; Maruoka, R.; Ikeda, M.; Tagami, J. Effect of resin coating on dentin bond durability of a resin cement over 1 year. Am. J. Dent. 2008, 21, 64–68.
[23]
Paul, S.J.; Sch？rer, P. The dual bonding technique: A modified method to improve adhesive luting procedures. Int. J. Periodontics Restor. Dent. 1997, 17, 536–545.
[24]
Bertschinger, C.; Paul, S.J.; Lüthy, H.; Sch？rer, P. Dual application of dentin bonding agents: Effect on bond strength. Am. J. Dent. 1996, 9, 115–119.
[25]
Magne, P. Immediate dentin sealing: A fundamental procedure for indirect bonded restorations. J. Esthet. Restor. Dent. 2005, 17, 144–154, doi:10.1111/j.1708-8240.2005.tb00103.x.
[26]
Magne, P.; Kim, T.H.; Cascione, D.; Donovan, T.E. Immediate dentin sealing improves the bond strength of indirect restorations. J. Prosthet. Dent. 2005, 94, 511–519, doi:10.1016/j.prosdent.2005.10.010.
[27]
Magne, P.; Nielsen, B. Interaction between impression materials and immediate dentin sealing. J. Prosthet. Dent. 2009, 102, 298–305, doi:10.1016/S0022-3913(09)60178-5.
[28]
Nikaido, T.; Nakaoki, Y.; Ogata, M.; Foxton, R.M.; Tagami, J. The resin-coating technique. Effect of a single-step bonding system on dentin bond strengths. J. Adhes. Dent. 2003, 5, 293–300.
[29]
Takahashi, R.; Nikaido, T.; Ariyoshi, M.; Kitayama, S.; Sadr, A.; Foxton, R.M.; Tagami, J. Thin resin coating by dual-application of all-in-one adhesives improves dentin bond strength of resin cements for indirect restorations. Dent. Mater. J. 2010, 29, 615–622, doi:10.4012/dmj.2009-110.
[30]
Horowitz, H.S.; Heifetz, S.B.; Poulsen, S. Retention and effectiveness of a single application of an adhesive sealant in preventing occlusal caries: Final report after five years of a study in Kalispell, Montana. J. Am. Dent. Assoc. 1977, 95, 1133–2119.
[31]
Paris, S.; Meyer-Luekel, H.; Mueller, J.; Hummel, M.; Keilbassa, A.M. Progression of sealed initial vovine enamel lesions under demineralizing conditions in vitro. Caries Res. 2006, 40, 124–129, doi:10.1159/000091058.
[32]
Phark, J.H.; Durate, S.J.; Meyer-Lueckel, H.; Paris, S. Caries infiltration with resins: A novel treatment option for interproximal caries. Compend. Contin. Educ. Dent. 2009, 30, 13–17.
[33]
Schmidlin, P.R.; Sener, B.; Attin, T.; Wiefand, A. Protection of sound enamel and artificial enamel lesions against demineralization: Caries infiltrant versus adhesive. J Dent. 2012, 40, 851–856, doi:10.1016/j.jdent.2012.07.003.
[34]
Heijnsbroek, M.; Paraskevas, S.; van der Weijden, G.A. Fluoride interventions for root caries: A review. Oral. Health. Prev. Dent. 2007, 5, 145–152.
[35]
Kaneshiro, A.V.; Imazato, S.; Ebisu, S.; Tanaka, S.; Tanaka, Y.; Sano, H. Effects of a self-etching resin coating system to prevent demineralization of root surfaces. Dent. Mater. 2008, 24, 1420–1427, doi:10.1016/j.dental.2008.03.003.
[36]
Daneshmehr, L.; Matin, K.; Nikaido, T.; Tagami, J. Effects of root dentin surface coating with all-in-one adhesive materials on biofilm adherence. J. Dent. 2008, 36, 33–41, doi:10.1016/j.jdent.2007.10.010.
[37]
Tajima, K.; Nikaido, T.; Inoue, G.; Ikeda, M.; Tagami, J. Effects of coating root dentin surfaces with adhesive materials. Dent. Mater. J. 2009, 28, 578–586, doi:10.4012/dmj.28.578.
