Titanium alloys are widely used in the dental field due to their excellent biocompatibility, corrosion resistance, mechanical properties, and low density. The following are some titanium alloy metal material solutions in dentistry:
• Material advantages: Titanium alloys are one of the most commonly used materials in dental implants. They have excellent biocompatibility, enabling stable osseointegration with the alveolar bone, providing a secure foundation for the dental crown, and causing no adverse reactions in the human body.
• Surface Treatment: To enhance osseointegration, titanium alloy implants are typically subjected to special surface treatments such as sandblasting or acid etching. These processes increase surface roughness, thereby improving bone cell adhesion and growth, and accelerating the osseointegration process.
• Material Advantages: Titanium alloy dental crowns and bridges have excellent strength and corrosion resistance, capable of withstanding various stresses during chewing. Additionally, their color closely matches natural teeth, offering high aesthetic appeal, and they have good biocompatibility, avoiding adverse reactions such as gum sensitivity, thereby benefiting oral tissue health.
• Manufacturing Process: The inner layer of titanium alloy dental crowns is typically composed of nickel, chromium, and titanium alloy, while the outer layer is covered with ceramic material. This structure ensures both the strength of the crown and its aesthetic appeal.
• Material advantages: Titanium alloy has excellent biocompatibility and mechanical properties, making it widely used in the fabrication of temporary anchorage devices (TADs) in orthodontic appliances. These devices are typically implanted into the patient's bone or soft tissue to move teeth that are difficult to move using traditional methods.
• Performance Comparison: While stainless steel can also be used for TADs, titanium alloy TADs offer superior performance.
• Mechanical Methods: Mechanical methods such as sandblasting and polishing are used to alter the surface morphology of implants, increasing their roughness to enhance osseointegration with bone tissue.
• Chemical Methods: Chemical methods such as acid etching are used to treat the implant surface, removing impurities and oxide layers while increasing surface roughness and contact area.
• Coating Technology: Adding bioactive coatings such as hydroxyapatite to the titanium alloy surface can further enhance the implant's osseointegration capability.
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