Cavity adaptation of composite restorations prepared at crown and root: Optical assessment using SS-OCT.

Evaluation of gap formation at the interfaces of a two-step self-etching adhesive with/without pre-etching was performed using sweptsource optical coherence tomography (SS-OCT). Round cavities were prepared in bovine incisors at the middle (MC) and cervical (CC) thirds of the crown and the cervical third of the root (CR). Clearfil SE bond was directly applied to one group (SE) and another (PA) was pretreated with K-etchant gel. Following restoration by flowable composite resin, the teeth were thermally challenged and stored for 2 months. Interfacial gaps observed in the cross-sectional OCT images were analyzed and the bottom cavities exhibited increased gaps compared to the margin and dentin-enamel junction (DEJ). The CR site had a larger gap than at MC and CC in the SE group. DEJ separation at the MC was significantly smaller than that at CC in both groups. Therefore, gap formation depends on the cavity region, location, and bonding protocol.

[1]  R. Hill,et al.  Comparison of Cervical and Mid Coronal Dentine Using a Desensitizing Bioactive Glass Toothpaste: A Pilot Study , 2016 .

[2]  A. Sadr,et al.  Microgaps and Demineralization Progress around Composite Restorations , 2015, Journal of dental research.

[3]  三田 郁美,et al.  Clinical assessment of non carious cervical lesion using swept-source optical coherence tomography , 2015 .

[4]  A. Monaco,et al.  Thermal cycling for restorative materials: does a standardized protocol exist in laboratory testing? A literature review. , 2014, Journal of the mechanical behavior of biomedical materials.

[5]  A. Georgescu,et al.  Evaluation of the Interfacial Morphology between a Single Component Adhesive and Dentin with or without Preliminary Acid Etching , 2014 .

[6]  Amir Nazari,et al.  Nondestructive assessment of current one-step self-etch dental adhesives using optical coherence tomography , 2013, Journal of biomedical optics.

[7]  Y. Sumi,et al.  Effects of structural orientation of enamel and dentine on light attenuation and local refractive index: an optical coherence tomography study. , 2012, Journal of dentistry.

[8]  Alireza Sadr,et al.  Non-invasive quantification of resin-dentin interfacial gaps using optical coherence tomography: validation against confocal microscopy. , 2011, Dental materials : official publication of the Academy of Dental Materials.

[9]  D. Purton,et al.  In vitro demineralisation of the cervical region of human teeth. , 2011, Archives of oral biology.

[10]  Jack L Ferracane,et al.  Resin composite--state of the art. , 2011, Dental materials : official publication of the Academy of Dental Materials.

[11]  Shu-Fang Chang,et al.  Comparison of the microstructure of crown and root dentin by a scanning electron microscopic study , 2010 .

[12]  W. Barkmeier,et al.  The role of etching in bonding to enamel: a comparison of self-etching and etch-and-rinse adhesive systems. , 2009, Dental materials : official publication of the Academy of Dental Materials.

[13]  Nicole S. Kimmes,et al.  Bond strength of self-etch adhesives to pre-etched enamel. , 2009, Dental materials : official publication of the Academy of Dental Materials.

[14]  Nicole S. Kimmes,et al.  Effect of enamel etching time on roughness and bond strength. , 2009, Operative dentistry.

[15]  S. González-López,et al.  Interfacial morphology and bond strength of self-etching adhesives to primary dentin with or without acid etching. , 2008, Journal of biomedical materials research. Part B, Applied biomaterials.

[16]  P. Lambrechts,et al.  Bond strength of a mild self-etch adhesive with and without prior acid-etching. , 2006, Journal of dentistry.

[17]  P. Lambrechts,et al.  Micro-tensile bond strength of adhesives bonded to Class-I cavity-bottom dentin after thermo-cycling. , 2005, Dental materials : official publication of the Academy of Dental Materials.

[18]  M. Burrow,et al.  Shear bond strength of tooth-colored indirect restorations bonded to coronal and cervical enamel. , 2005, Operative dentistry.

[19]  A. Peutzfeldt,et al.  Determinants of in vitro gap formation of resin composites. , 2004, Journal of dentistry.

[20]  P. Lambrechts,et al.  Microtensile bond strengths of one- and two-step self-etch adhesives to bur-cut enamel and dentin. , 2003, American journal of dentistry.

[21]  M. Burrow,et al.  Shear bond strength of current adhesive systems to enamel, dentin and dentin-enamel junction region. , 2003, Operative dentistry.

[22]  P. Lambrechts,et al.  Buonocore memorial lecture. Adhesion to enamel and dentin: current status and future challenges. , 2003, Operative dentistry.

[23]  F. Tay,et al.  Water treeing--a potential mechanism for degradation of dentin adhesives. , 2003, American journal of dentistry.

[24]  Y. Shimada,et al.  Micro-shear bond strength of resin-bonding systems to cervical enamel. , 2002, American journal of dentistry.

[25]  P. Fratzl,et al.  Graded Microstructure and Mechanical Properties of Human Crown Dentin , 2001, Calcified Tissue International.

[26]  M. Burrow,et al.  The effects of bonding system and light curing method on reducing stress of different C-factor cavities. , 2001, The journal of adhesive dentistry.

[27]  B. Darvell,et al.  Thermal cycling procedures for laboratory testing of dental restorations. , 1999, Journal of dentistry.

[28]  R. P. Christensen,et al.  Resin polymerization problems--are they caused by resin curing lights, resin formulations, or both? , 1999, Compendium of continuing education in dentistry. (Jamesburg, N.J. : 1995). Supplement.

[29]  S. Weiner,et al.  Strain-structure relations in human teeth using Moiré fringes. , 1997, Journal of biomechanics.

[30]  D. Pashley,et al.  Dentine permeability and dentine adhesion. , 1997, Journal of dentistry.

[31]  D. Pashley,et al.  Regional Strengths of Bonding Agents to Cervical Sclerotic Root Dentin , 1996, Journal of dental research.

[32]  S. Robinson,et al.  Correlative Transmission Electron Microscopy Examination of Nondemineralized and Demineralized Resin-Dentin Interfaces Formed by Two Dentin Adhesive Systems , 1996, Journal of dental research.

[33]  M. Balooch,et al.  Mineral Distribution and Dimensional Changes in Human Dentin during Demineralization , 1995, Journal of dental research.

[34]  W. G. Matthews,et al.  Nanoleakage: leakage within the hybrid layer. , 1995, Operative dentistry.

[35]  W H Douglas,et al.  Structure-Property Relations and Crack Resistance at the Bovine Dentin-Enamel Junction , 1994, Journal of dental research.

[36]  P. Lambrechts,et al.  Morphological Aspects of the Resin-Dentin Interdiffusion Zone with Different Dentin Adhesive Systems , 1992, Journal of dental research.

[37]  N. Nakabayashi,et al.  Hybrid layer as a dentin-bonding mechanism. , 1991, Journal of esthetic dentistry.

[38]  N. Nakabayashi,et al.  The promotion of adhesion by the infiltration of monomers into tooth substrates. , 1982, Journal of biomedical materials research.

[39]  Retief Dh,et al.  Variations in enamel etching patterns produced by different concentrations phosphoric acid. , 1982 .

[40]  D. Retief,et al.  Variations in enamel etching patterns produced by different concentrations phosphoric acid. , 1982, The Journal of the Dental Association of South Africa = Die Tydskrif van die Tandheelkundige Vereniging van Suid-Afrika.

[41]  Y. Arakawa,et al.  The effect of acid etching on the cervical region of the buccal surface of the human premolar, with special reference to direct bonding techniques. , 1979, American journal of orthodontics.

[42]  O. Fejerskov,et al.  Variation in the pattern of acid etching of human dental enamel examined by scanning electron microscopy. , 1975, Caries research.