The Effect of Different Surface Treatments on Cement-Retained Implant-Supported Restorations

Abstract

The purpose of this study was to evaluate the effects of the various surface treatment methods on the retention of single crowns on implant abutments. The study included 50 single crowns that were cemented with adhesive resin cement onto the ITI solid abutments. The specimens were randomly divided into 5 groups, each including 10 specimens according to the following surface treatments: group C, control, abutments remained unaltered as control; group L, etching with CO(2) laser; group SB, sandblasting with 50-μm Al(2)O(3); group MS: coating with titanium nitride (TiAlN) with a radiofrequency magnetron sputtering system; and group SP, silicoating by Silano-Pen. After the surface treatment procedures were finished, the casted crowns were cemented onto the abutments, and thermocycling was applied to simulate oral environment. The uniaxial tensile force was applied to all test crowns using a universal test machine (Instron) with a crosshead speed of 0.5 mm/min. The load required to dislodge each crown was recorded in Newton. The lowest tensile bond strength values were obtained with group MS (223.26 ± 14.30 N) and significantly differ from all other groups except group C. Group SB showed highest test results (506.02 ± 18.04 N) and differs from other groups (P < .05). The test values that were obtained in group MS-group C did not show significant differences (P > .05). Sandblasting is an effective method to increase bond strength. Also, Silano-Pen and laser application is advisable for increasing the crown retention to abutments. Titanium aluminum nitride coating with magnetron sputtering technique seems to be ineffective.

Effect of Using Nano and Micro Airborne Abrasive Particles on Bond Strength of Implant Abutment to Prosthesis

“…First of all, the results of present study confirmed that making roughened surface results in higher values of retentive strength as reported elsewhere (2,9,14,15,19,20).…”

“…There have been many studies about the effect of surface treatment on retention strengths of cemented prostheses to the abutments (4,5,9,11,14). However, few studies evaluated the effect of nano scale surface treating on retentive strength.…”

“…Hence, the impact of nano and micro ABAP on retentive strength was investigated in cemented coping to implant abutments in this study. Factors that influence the amount of retention seems to have paramount role in cemented implant-supported restorations, including: taper or parallelism, surface area and height, surface finish or roughness and type of cement (2,9,14).…”

Effect of Air Abrasion and Different Silicoating Techniques on the Bond Strength of Particulate Filler Composite to Titanium

“…In this study higher shear bond strength values were obtained with group CSP and DSP than group S and group D respectively. Silane coupling with heat treatment may be effective on titanium surface to increase shear bond strength [20]. When compared traditional surface treatment methods, with this system more favorable results were obtained in adhesive prostheses, metal-composite fixed partial denture and crowns, telescopic crowns and removable partial dentures [12].…”

“…Similarly, in the present study silicoating did not statistically affect the shear bond strength to titanium alloy. The Mohs hardness of titanium, silicon dioxide, aluminum oxide and synthetic diamond are 6, 6.5, 9 and 10, respectively [20]. Hardness of abrasive material did not affect the bond strength [18].…”