in:joy technical datasheet GB - DeguDent

in:joyTechnical descriptionin:joy – the new veneering composite

Froggin’ good.in:joy – the new veneering composite.in:joy is a light-curing composite designed for high-quality aesthetic veneers on metal and non-metal frameworks. Thematerial has excellent physical properties and offers impressive shade and shape reproduction even in situations wherespace is at a premium.Indications• Inlays, onlays and veneers• Anterior and posterior crowns withoutmetal frameworks• Veneering of fixed crowns and bridgeswith metal frameworks• Restorations with telescope crownsand precision attachmentsIngredientsin:joy Cervical Modifier, Dentine, Incisal, Transpa Accent:• Dimethacrylic acid esters• Pyrogenic silicic acid (silanized)• Organic/inorganic pre-polymerisates• Rheology modifiers• Inorganic pigments (non-cadmium)• Camphor chinone• StabilizersFiller: 55 % w/wFiller material: GlassResults of independent studies:Colour stabilityIn a staining test, in:joy composite exhibitedgood colour stability in the presence ofcoffee and saffron. Test specimens wereimmersed in boiling liquid containing therespective substance and kept there for16 hours, then visually compared withuntreated original specimens. The testspecimens were rated on a scale from 0to 5, with 0 indicating no discolouration and5 indicating extreme discolouration.Compared to products A, B and C, in:joycomposite exhibited only minor discolouration.Rank 0-5Dentine discolourationin:joy Product A Product B Product CMaterialCoffeeSaffron

in:joy˘EUV resistance in ˘Ein:joy Product A Product B Product CMaterialin:joyProduct AProduct BProduct CUV resistanceThe in:joy composite was tested for UVresistance according to the ISO 7491standard. Test specimens were preparedpursuant to the requirements of the standard,then one-half of each specimen was coveredwith aluminium foil and the specimenexposed to UV light for 72 hours. Onconclusion of the testing period, the colourdeviations between the covered and thenon-covered parts of the specimens weremeasured. Colour discrepancies weredetermined based on ∆E values: the smallerthe value found, the more UV-resistant thematerial. Compared to other products, in:joycomposite exhibited very low values,indicating that it is particularly UV-resistant.GPaElastic modulus, GPain:joyProduct AProduct BElastic modulusThe elastic modulus indicates how elastic amaterial is. It is defined as the slope of thestress-strain curve in the elastic deformationregion. The lower the elastic modulus, thehigher the elasticity of the material. in:joycomposite was shown to have a lowerelastic modulus than products A or B,indicating a high level of elasticity of thecomposite, which is a clear advantage interms of safety and longevity.in:joy Product A Product BMaterialmm?Abrasion in mm?in:joyProduct AProduct BAbrasion resistancein:joy composite alloy is characterized byexcellent abrasion resistance, which wasshown within the framework of an in-vitrostudy on wear (comparison of two media) ina Willytec chewing simulator. Testspecimens were exposed to 120,000chewing cycles (at a frequency of 1.6 Hz) ata force of 50 N and a lateral movement of0.7 mm. The result indicates the volumeloss of the restoration in mm³. A highabrasion resistance helps preserve thecontact points and eliminate material losses.in:joy Product A Product BMaterial

in:joy70034/0809/KHLast revision: 09/2008Flexural strengthCompared with other products, in:joycomposite exhibited excellent flexuralstrength even after aging. Test specimenswere prepared and tests performedaccording to the ISO 10477 standard. Priorto the measurements, the test specimenswere stored in water at 37 °C for 24 hours.They were then tested in a Zwick Universal1455 universal testing unit, loading thespecimens until fracture. The load atfracture was measured in MPa.MPaFlexural strength in MPain:joyProduct AProduct Bin:joy Product A Product BMaterialFlexural strength testing after aging wasperformed according to the requirements ofthe U.S. Food and Drug Administration(FDA). Test specimens were stored at 37 °Cin a 75 % solution of ethanol and water forone week. The test results indicated that theflexural strength of in:joy is retained evenafter protracted storage in an ethanol/watersolution at elevated temperatures.MPaFlexural strength after aging in MPain:joyProduct AProduct Bin:joy Product A Product BMaterialFor more information: www.dentsply-degudent.deDeguDent GmbHA Dentsply International CompanyP.O. Box 1364 · D-63403 Hanau · Germany