The use of flowable composites as filled adhesives
Source abstract
Abstract
Objective The effect of filled adhesives on bonding resin composites to dentin has not been fully understood. Due to their filler content, filled adhesives may act as stress breakers. The aim of this in vitro study was to evaluate the use of flowable composites of different viscosities on bonding to enamel and dentin without the use of an intermediate bonding resin. Materials and methods Enamel and dentin bond strengths of OptiBond FL, Syntac Classic, and EBS Multi combined either with their proprietary bonding agent or a flowable resin composite (Ultraseal XT Plus or Revolution) were measured. The tests were carried out with a microtensile device at a crosshead speed of 1mm/min after 24h of storage at 37 degrees C in water. Mean bond strengths were analyzed using the Wilcoxon test and multiple comparisons according to the Mann-Whitney U-test. The micro-morphology of corresponding resin-dentin interfaces of the same teeth were analyzed using SEM and TEM. Results The control groups with adhesive systems used as per manufacturers' protocol showed bond strengths of 38.9-41.1 MPa to enamel and 28.8-33.4 MPa to dentin. With respect to bond strength to etched enamel, only Ultraseal XT Plus as bonding resin reached the level of the control groups. When used as bonding agents on dentin, both flowable composites produced lower microtensile bond strengths to etched and primed dentin than did the control groups. Micro-morphological analysis using SEM and TEM resulted in hybrid layer formation for both control and experimental groups. However, many areas of the resin-dentin interface showed insufficient penetration of the flowable composites at the top of the hybrid layer as well as numerous tubules obstructed by filler particles. Conclusions The flowable composites tested in this study should not be used to replace bonding agents. Flowable composites of thinner viscosity, such as Ultraseal XT Plus, may bond to enamel adequately without the requirement of an intermediate bonding resin.
Source: europepmc · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Dental materials and restorations · Dental Erosion and Treatment · Endodontics and Root Canal Treatments
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (52)
Show source-provided references
1. Current materials and techniques for direct restorations in posterior teeth. Part 2: Resin composite systems10.1111/j.1875-595X.1997.tb00448.x ↗
2. Dentin bonding-questions for the new millennium
3. Marginal adaptation of composite restorations versus hybrid ionomer/composite sandwich restorations
4. Cavity wall adaptation and voids in adhesive class I resin composite restorations10.1016/S0109-5641(96)80028-5 ↗
5. Internal adaptation and overhang formation of direct posterior resin composite restorations10.1007/s007840050103 ↗
6. The interaction of adhesive systems with human dentin
7. Bonding to enamel and dentin: A brief history and state of the art, 1995
8. The competition between the composite dentin bond strength and the polymerization contraction stress10.1177/00220345840630121101 ↗
9. A simple method of increasing the adhesion of acrylic filling materials to enamel surfaces10.1177/00220345550340060801 ↗
10. A study of enamel adhesives. The physical relationship between enamel and adhesive10.1016/0003-9969(67)90195-1 ↗
11. The dentinal surface: its influence on dentinal adhesion. Part I
12. Current concepts on adhesion to dentin10.1177/10454411970080030501 ↗
13. Perdigão J. An ultramorphological study of human dentine exposed to adhesive systems. PhD thesis, Catholic University of Leuven, Belgium, 1995.
14. The clinical performance of adhesives10.1016/S0300-5712(96)00070-X ↗
15. Identification of a resindentin hybrid layer in vital human dentin created in vivo: durable bonding to vital dentin
16. Micromorphological spectrum of acidconditioned dentin following the application of a waterbased adhesive10.1016/S0109-5641(98)00046-3 ↗
17. Adhesion testing of dentin bonding agents: a review10.1016/0109-5641(95)80046-8 ↗
18. Resin bonding to wet substrate. I. Bonding to dentin
19. In vitro bond strengths and SEM evaluation of dentin bonding systems to different dentin substrates10.1177/00220345940730010601 ↗
20. The promotion of adhesion by the infiltration of monomers into tooth substrates10.1002/jbm.820160307 ↗
21. Effect of one year water storage on the effectiveness of dentin adhesives in class V composite resin restorations
22. Hybridization effectiveness of a twostep versus a threestep smear layer removing adhesive system examined correlatively by TEM and AFM
23. Sealing ability of eight resin bonding systems in a Class II restoration after mechanical fatiguing10.1016/S0109-5641(97)80109-1 ↗
24. Assessment by nano-indentation of the hardness and elasticity of the resin–dentin bonding area10.1177/00220345930720101401 ↗
25. Effect of low-viscosity resins on the performance of dental adhesives
26. Marginal integrity related to bond strength and strain capacity of composite resin restorative systems10.1016/0022-3913(90)90291-J ↗
27. A radiographic and scanning electron microscopic study of approximal margins of Class II resin composite restorations placed in vivo10.1016/S0300-5712(97)00024-9 ↗
28. Microleakage reduction from newer esthetic restorative materials in permanent molars
29. Flowable composites: properties and applications
30. Radiopacity of compomers, flowable and conventional resin composites for posterior use
31. Flowable resin composites as filled adhesives: Literature review and clinical recommendations
32. Relationship between surface area for adhesion and tensile bond strength10.1016/0109-5641(94)90067-1 ↗
33. Comparison of a microtensile and two shear dentin bond tests
34. Tensile bond strength to and SEM evaluation of ground and intact enamel surfaces10.1016/S0300-5712(99)00008-1 ↗
35. The microtensile bond test. A review
36. Effects of prism orientation on tensile bond strength of enamel
37. Why do shear bond tests pull out dentin?10.1177/00220345970760061001 ↗
38. A critique of bond strength measurements10.1016/0300-5712(89)90131-0 ↗
39. The effect of local interfacial geometry on the measurements of the tensile bond strength to dentin10.1177/00220345910700050501 ↗
40. Regional measurement of resin–dentin bonding as an array10.1177/00220345990780021001 ↗
41. Durability of resin–dentin bonds
42. Long-term effect of dentin primers on enamel bond strength and marginal adaptation
43. Correlative transmission electron microscopy examination of nondemineralized and demineralized resin–dentin interfaces10.1177/00220345960750030401 ↗
44. Dentin bond shear strength and microleakage for Syntac/Heliomolar: a comparison between the manufacturer's and total etch technique10.1111/j.1708-8240.1992.tb00688.x ↗
45. Effect of multi-step dentin bonding systems and resin-modified glass ionomer cement liner on marginal quality of dentin-bonded resin composite class II restorations10.1007/s007840050058 ↗
46. A characterization of first-generation flowable composites10.14219/jada.archive.1998.0274 ↗
47. Comparative radiopacity of flowable resin composites
48. Kinetics of wetting of surfaces by polymers: Capillary flow10.1016/0021-9797(68)90313-5 ↗
49. Penetration of restorative resins into acid etched enamel. I. Viscosity, surface tension and contact angle of restorative resin monomers10.3109/00016357709004652 ↗
50. Penetration of restorative resins into acid etched enamel. II10.3109/00016357709004653 ↗
51. Adaptation of resinous restorative materials to acid etched enamel surfaces
52. Penetration of restorative resins into acid-etched human enamel10.14219/jada.archive.1976.0287 ↗