樹脂黏合劑與不同表面處理之鈦金屬間剪切鍵結強度之探討

Shear Bond Strength of Resin Cement to Titanium with Different Surface Treatments

蘇英芳(Ying-Fang Su) ； 徐啓智(Chii-Chih Hsu) ； 楊文敏(Wen-Min Yang)

《中華牙醫學雜誌（中文版）》 1卷3期 (2005/09) Pp. 193-200

https://doi.org/10.7106/CJD.200509.0193

摘要

The Maryland bridge has been widely used in dentistry, and commercial pure titanium has been considered as an alternative metal for dental prostheses. The purpose of this study was to evaluate the durability of the shear bond strength of commercial pure titanium with different surface treatments under thermocycling. Type J3 cp titanium was used to cast 135 disc specimens with a 2×4.55mm diameter and 135 cylinders with a 5×9mm diameter. All specimens were subjected to porcelain firing cycles, were sandblasted with 250μm Al2O3 particles, and were divided into the following 3 groups: (A) no further surface treatment; (B) tin plating; and (C) alloy primer application. The 135 cast cylinders were embedded in an epoxy resin. The 4-META resin cement was selected to bond the cast disc to the cylinder. All of the specimens were immersed in an artificial saliva solution at 37℃ for 24 hours. Each group was divided into 3 subgroups as follows: (a) no thermocycling; (b) with 5000 thermal cycles; and (c) with 20,000 thermal cycles. The shear bond strength was tested and recorded. The specimens sandblasted with the 250 pm Al2O3 particles only were significantly affected by the 20,000 thermal cycles (p＜0.05). The metal surface treated with the 250 pm Al2O3 particles and alloy primer application was not affected by the thermal cycling (p＞0.05). There were statistically significant differences in those tests with 20,000 thermal cycles between those specimens treated with or without alloy primer (p＜0.05). It was concluded that alloy primer applied after Al2O3 sandblasting can prevent resin bond titanium prostheses failure in the oral environment.

關鍵字

馬利蘭牙橋 ； 鈦金屬 ； 金屬表面處理 ； 抗剪強度

並列摘要

The Maryland bridge has been widely used in dentistry, and commercial pure titanium has been considered as an alternative metal for dental prostheses. The purpose of this study was to evaluate the durability of the shear bond strength of commercial pure titanium with different surface treatments under thermocycling. Type J3 cp titanium was used to cast 135 disc specimens with a 2×4.55mm diameter and 135 cylinders with a 5×9mm diameter. All specimens were subjected to porcelain firing cycles, were sandblasted with 250μm Al2O3 particles, and were divided into the following 3 groups: (A) no further surface treatment; (B) tin plating; and (C) alloy primer application. The 135 cast cylinders were embedded in an epoxy resin. The 4-META resin cement was selected to bond the cast disc to the cylinder. All of the specimens were immersed in an artificial saliva solution at 37℃ for 24 hours. Each group was divided into 3 subgroups as follows: (a) no thermocycling; (b) with 5000 thermal cycles; and (c) with 20,000 thermal cycles. The shear bond strength was tested and recorded. The specimens sandblasted with the 250 pm Al2O3 particles only were significantly affected by the 20,000 thermal cycles (p＜0.05). The metal surface treated with the 250 pm Al2O3 particles and alloy primer application was not affected by the thermal cycling (p＞0.05). There were statistically significant differences in those tests with 20,000 thermal cycles between those specimens treated with or without alloy primer (p＜0.05). It was concluded that alloy primer applied after Al2O3 sandblasting can prevent resin bond titanium prostheses failure in the oral environment.

並列關鍵字

Maryland bridge ； titanium ； surface treatment ； shear strength