objectives: the aim of this in-vitro study was to assess the thermal effect of light emitting diode (led) light curing unit on the enamel etching time. materials and methods: three treatment groups with 15 enamel specimens each were used in this study: g1: fifteen seconds of etching, g2: five seconds of etching, g3: five seconds of etching plus led light irradiation (simultaneously). the micro ...

objective: the aim of this study was to investigate the effect of phosphoric acid re-etching of an enamel surface treated via a one-bottle adhesive system on shear bond strength between resin composite and the enamelsurface in different stages of adhesive application. materials and methods: extracted intact premolars (n=84) were divided into sevengroups (n=12). in the control group 1, the adhes...

objectives: this in-vitro study aimed to compare the push-out bond strength of composite to prepared and unprepared intracanal dentin using a 5th generation bonding agent in primary anterior teeth after etching for seven and 15 seconds. materials and methods: sixty primary anterior teeth were randomly divided into four groups. in groups one and two, intracanal dentin remained intact while in gr...

background: bleaching the discoloured teeth may affect the tooth/composite interface. the aim of this in vitro experimental study was to evaluate the effect of vital tooth bleaching on microleakage of existent class v composite resin restorations bonded with three dental bonding agents.     methods: class v cavities were prepared on buccal surfaces of 72 intact, extracted human anterior teeth w...

objectives : this experimental study evaluated the effect of bonding application time on the microshear bond strength of composite resin to different types of glass ionomer cements (gics). materials and methods: one-hundred and sixty specimens (two conventional and two resin-modified gics) were prepared and divided into 16 groups. the surface of all specimens was prepared using two different bo...

path of microleakage between the enamel and adhesive potentially allows microbial ingress that may consequently cause enamel decalcification. the aim of this study was to compare microleakage of brackets bonded either by laser or acid etching techniques.the specimens were 33 extracted premolars that were divided into three groups as the acid etching group (group 1), laser etching with er:yag at...

objectives: this study aimed to assess the effect of re-etching of desensitized dentin for five and 10 seconds on marginal microleakage of composite restorations. materials and methods: class v cavities (4x2x2mm) were prepared on the buccal surfaces of 64 third molars and randomly divided into four groups of 16. in the control group, single bond (sb) adhesive was applied after etching. in bb+sb...

The annual review of selected dental literature this year cites 384 published papers and reports. This year's review contains more editorial comment than reviews of years passed. New data on the biological responses to materials is emphasized in several sections. Observations on new compounds able to prevent plaque formation are presented. Clinically relevant advances in knowledge concerning th...

Surface modification of dental implants is a key process in the production of these medical devices, and especially titanium implants used in the dental practice are commonly subjected to surface modification processes before their clinical use. A wide range of treatments, such as sand blasting, acid etching, plasma etching, plasma spray deposition, sputtering deposition and cathodic arc deposi...