|
|
effect of surface preparation with nd:yag and er,cr:ysgg lasers on the repair bond strength of lithium disilicate glass ceramic to a silorane-based composite resin
|
|
|
|
|
نویسنده
|
ebrahimi chaharom mohammad esmaeel ,pournaghi azar fatemeh ,mohammadi narmin ,nasiri rezvan
|
منبع
|
journal of dental research dental clinics dental prospects - 2018 - دوره : 12 - شماره : 1 - صفحه:12 -17
|
چکیده
|
Background. this study was undertaken to evaluate the repair bond strength of lithium disilicate glass ceramic to a silorane-based composite resin after surface preparation with nd:yag and er,cr:ysgg lasers. methods. a total of 102 lithium disilicate glass ceramic samples (ips e.max press), measuring 5 mm in diameter and 4 mm in thickness, were randomly assigned to 6 groups (n=17): group 1, no surface preparation (control); group 2, acid etching with 9.5% hydrofluoric acid (hf); group 3, surface preparation with 4.5-w nd:yag laser; group 4, surface preparation with 6-w nd:yag laser; group 5, surface preparation with 1.5-w er,cr:ysgg laser; and group 6, surface preparation with 6-w er,cr:ysgg laser. after preparation of surfaces and application of silane, all the samples were repaired with the use of a silorane-based composite resin, followed by storage in distilled water at a temperature of 37°c for 24 hours and thermocycling. finally, the samples were subjected to a shearing bond strength test; the fracture modes were determined under a stereomi-croscope. results. there were significant differences between the hf group and the other groups (p=0.000). two-by-two comparisons of the other groups revealed no significant differences (p>0.05). conclusion. use of hf proved the most effective surface preparation technique to increase the repair bond strength between lithium disilicate glass ceramic and silorane-based composite resin; compared to the control group.
|
کلیدواژه
|
er ,cr:ysgg laser ,nd:yag laser ,hf ,lithium disilicate glass ceramic
|
آدرس
|
tabriz university of medical sciences, faculty of dentistry, department of operative dentistry, ایران, tabriz university of medical sciences, faculty of dentistry, department of operative dentistry, ایران, tabriz university of medical sciences, faculty of dentistry, department of operative dentistry, ایران, arak university of medical sciences, faculty of dentistry, department of operative dentistry, ایران
|
پست الکترونیکی
|
rezvannasiri252@yahoo.com
|
|
|
|
|
|
|
|
|
|
|
|
Authors
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|