2026-11-092026-11-09https://scholars.csmu.edu.tw/handle/123456789/38664The porcelain fused to metal (PFM) restorations is generally used in fixed prosthetic dentistry. Titanium is well known for its advantages, such as excellent biocompatibility, corrosion resistance, high strength-to-weight ratio, appropriate mechanical properties, and lower density. However, there are still remaining problems with firing ceramic on titanium. In an attempt to improve the surface property of titanium and increase bonding strength between titanium and dental ceramic for enlarging clinical success of the porcelain fused to titanium restoration in this research. The pure titanium as metal substrate of PFM and a few commercial dental ceramic products for titanium as the porcelain bonding will be used. Titanium will be subjected to preheating temperatures. The treated surfaces of titanium such as internal structure, composite distribute and bonding will be analyzed by using X-ray diffraction, SEM observation, transmission electron microscope (TEM) and glow discharge spectrometer (GDS). Titanium-dental ceramic specimen under static loading will be examined to evaluate bond strength and fatigue strength. The bond strength of titanium-dental ceramic with and without thermal cycling test will be also measured by the three-point bending test. The fracture paths and mode of titanium-ceramic after heat treatment at the interface will be also characterized. The SEM observation of titanium-dental ceramic will be investigated to evaluate the effect of pre-heat treatment on bonding mechanism, bonding strength and oxide layer thickness at interface between titanium and dental ceramic. Effect of thermal cycling testing on bonding strength of titanium-ceramic sample will be evaluated.在牙科臨床治療中瓷金融合冠是固定式補綴物中常見的牙科修復物。 鈦金屬擁有很多優點，如優秀的生物相容性和耐腐蝕性、高比強度、良好 的機械性質及低密度。但是現在鈦作為瓷金融合冠的金屬基材，在鈦與牙 科陶瓷間的接著強度方面仍然存在著一些問題。 本研究試圖改變鈦表面的氧化性質，期望能增強鈦金屬與牙科用 陶瓷之間的結合強度，藉以增加鈦陶瓷PFM 補綴物的臨床治療成效作 為目標。選用二級純鈦金屬以及幾種市售鈦專用燒融陶瓷作為實驗材料， 利用熱處理方法對鈦進行表面處理。使用XRD 分析試片表面氧化物成分， 利用SEM 和TEM 觀察表面結構、成分及鍵結，藉由GDS 推估鈦氧化層厚 度。利用冷熱循環裝置，模擬人體口腔環境，對試片測試。使用三點彎曲 試驗，評估鈦陶瓷複合材料的結合強度和疲勞強度。利用SEM 對試片的破 壞面之形態、破壞途經以及破壞模式進行觀察和分析。探討熱處理對鈦 金屬與陶瓷的鍵結機制、鍵結強度以及氧化層厚度的影響。探討冷熱循 環試驗對鈦金屬與陶瓷的鍵結強度之影響。評估鈦金屬與陶瓷材料在模 擬口腔環境與受力條件下的疲勞強度。鈦表面處理鍵結強度燒瓷TitaniumSurface treatmentBond strengthPorcelain firingProject