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

Abstract

Connecting prostheses to the implant abutments has become a concern and achieving a satisfactory retention has been focused in cement-retention prostheses recently. Sandblasting is a method to make a roughened surface for providing more retention. The aim of this study was to compare effects of nano and micro airborne abrasive particles (ABAP) in roughening surface of implant abutments and further retention of cemented copings. Thirty Xive abutments and analogues (4.5 D GH1) were mounted vertically in self-cured acrylic blocks. Full metal Ni-Cr copings with a loop on the top were fabricated with appropriate marginal adaptation for each abutment. All samples were divided into 3 groups: first group (MPS) was sandblasted with 50 µm Al 2 O 3 micro ABAP, second group (NSP) was sandblasted with 80 nm Al 2 O 3 nano ABAP, and the third group (C) was assumed as control. The samples were cemented with provisional cement (Temp Bond) and tensile bond strength of cemented copings was evaluated by a universal testing machine after thermic cycling. The t test for independent samples was used for statistical analysis by SPSS software (version 15) at the significant level of 0.05. Final result showed significant difference among all groups (p<0.001) and MPS manifested the highest mean retention (207.88±45.61 N) with significant difference among other groups (p<0.001). The control group showed the lowest bond strength as predicted (48.95±10.44 N). Using nano or micro ABAP is an efficient way for increasing bond strengths significantly, but it seems that micro ABAP was more effective.

The effect of different methods of cleansing temporary cement (with and without eugenol) on the final bond strength of implant-supported zirconia copings after final cementation: An in vitro study

“…[ 38 ] As a result of sandblasting with aluminum oxide particles, surfaces may become rough and irregular, increasing the possibility of cement sticking and increasing the final TBF. [ 39 ]…”

The effect of different cleansing methods for removing temporary cement on the tensile bond force of permanently cemented implant‐supported metal copings: An in vitro study

“…In this study, the mean highest TBF value was observed in the SUA group (845 ± 203 N), followed by groups UA, and SA, which is in agreement with the results of the above‐mentioned studies (Keum & Shin, 2013; Song et al, 2019). According to some research, sandblasting with air‐borne abrasive particles, which alters the surface by causing irregularities, enhances the interlocking of the cement and final TBS (Gurbuz et al, 2008; Rismanchian et al, 2015).…”

Influence of abutment design on retention of metal copings cemented to implants

“…However, this procedure is difficult be performed with solid abutments due it having an integral screw. [33] Moreover, the screw channel of the RN synOcta abutments can be modified to improve cement flow enhancing the amount of cement kept within the abutments (internal vent). [34]…”