Titanium Alloy Medical Titanium Disc Gr2 Gr5 for Dentist Superior
Strength and Corrosion Resistance Titanium Disk
Titanium alloys, particularly Grade 2 (Gr2) and Grade 5 (Gr5), are
highly valued in medical and dental applications due to their
exceptional biocompatibility, corrosion resistance, and mechanical
properties. In the dental field, these alloys are commonly used for
various medical devices, such as dental implants, prosthetics, and
orthodontic components. When it comes to dental discs or disks, the
titanium alloys provide superior performance in terms of strength,
longevity, and safety for patients.
Overview of Titanium Alloys in Dentistry
Titanium alloys, particularly Gr2 and Gr5, offer properties that
make them ideal for the challenging environment in dental
procedures:
- Corrosion Resistance: Both Gr2 and Gr5 alloys exhibit excellent
resistance to corrosion, which is crucial in the moist, often
acidic environment of the mouth.
- Biocompatibility: Titanium is known for being non-reactive with
human tissues, which is essential for dental implants that remain
in contact with the bone and soft tissues for long periods.
- Strength and Durability: These alloys offer high strength-to-weight
ratios, making them robust for dental implants while being
lightweight enough for comfortable use in patients.
Titanium Alloy Grades for Dental Applications
| Chemical requirements |
| N | C | H | Fe | O | Al | V | Pd | Mo | Ni | Ti |
| Gr1 | 0.03 | 0.08 | 0.015 | 0.20 | 0.18 | / | / | / | / | / | bal |
| Gr2 | 0.03 | 0.08 | 0.015 | 0.30 | 0.25 | / | / | / | / | / | bal |
| Gr5 | 0.05 | 0.08 | 0.015 | 0.40 | 0.20 | 5.5~6.75 | 3.5~4.5 | / | / | / | bal |
| Gr7 | 0.03 | 0.08 | 0.015 | 0.30 | 0.25 | / | / | 0.12~0.25 | / | / | bal |
| Gr12 | 0.03 | 0.08 | 0.015 | 0.30 | 0.25 | / | / | / | 0.2~0.4 | 0.6~0.9 | bal |
| Tensile requirements |
| Grade | Tensile srength(min) | Yeild strength(mm) | Elongation(%) |
| KSI | MPa | Ksi | MPa | |
| 1 | 35 | 240 | 20 | 138 | 24 |
| 2 | 50 | 345 | 40 | 275 | 20 |
| 5 | 130 | 895 | 120 | 828 | 10 |
| 7 | 50 | 345 | 40 | 275 | 20 |
| 12 | 70 | 438 | 50 | 345 | 18
|
Titanium Grade 2 (Gr2)
- Composition: Titanium Gr2 is commercially pure titanium (CP-Ti)
with a low amount of alloying elements like iron. It has about
99.5% titanium content, making it the softest and most ductile
titanium grade.
- Properties:
- Corrosion Resistance: Gr2 titanium is highly resistant to corrosion
in most body fluids and environments, which is essential for dental
implants and prosthetics.
- Formability: It is easy to work with, making it an ideal material
for dental implants and other custom dental components.
- Mechanical Properties: Although it is not as strong as Gr5, Gr2 has
a good balance of strength and flexibility for applications that
require high formability and resilience.
- Applications: It is used for dental implants, dental screws, and
prosthetic components that require good corrosion resistance
without the need for excessive strength.
Titanium Grade 5 (Gr5)
- Composition: Gr5, also known as Ti-6Al-4V, is an alloy containing
90% titanium, 6% aluminum, and 4% vanadium, making it a
high-strength titanium alloy.
- Properties:
- Superior Strength: Gr5 is stronger than Gr2 and is ideal for
load-bearing dental implants. The presence of aluminum and vanadium
increases its tensile strength, making it suitable for dental
prosthetics that need to withstand higher mechanical stresses.
- Corrosion Resistance: While still highly resistant to corrosion,
Gr5 might not have the same level of absolute corrosion resistance
as Gr2 in extreme environments, but it is more than adequate for
use in the oral cavity.
- Durability and Fatigue Resistance: Gr5 titanium is particularly
valued for its fatigue resistance, which is important for dental
implants that experience repeated stress over time.
- Applications: Gr5 is often used in dental implants, dental bridges,
orthodontic components, and prosthetics that require higher
mechanical strength for load-bearing and long-term durability.
Advantages of Titanium Discs for Dental Applications
Titanium discs, often cut and shaped from sheets of titanium alloy,
are used in the dental field for a variety of purposes, from
implants to crowns and dentures. The properties of titanium alloys
like Gr2 and Gr5 make titanium discs particularly useful in
dentistry due to the following key advantages:
Biocompatibility:
- Titanium is known for its high biocompatibility, meaning it is
well-tolerated by the human body. It does not provoke an immune
response, making it safe for long-term use in dental implants and
prosthetics. This is critical for ensuring the success of dental
implants, which must integrate with bone (osseointegration).
Corrosion Resistance:
- The oral cavity contains a variety of corrosive elements, such as
acids from food, beverages, and saliva. Titanium's resistance to
corrosion ensures that dental implants and prosthetics made from
Gr2 or Gr5 alloys will not degrade or corrode over time. This is
especially important as titanium implants may be exposed to harsh
conditions for many years.
Strength and Durability:
- Gr2 titanium, while more ductile, offers sufficient strength for
non-load-bearing dental applications, such as implants or posts for
crowns.
- Gr5 titanium provides superior strength, making it ideal for
load-bearing implants and components subjected to high mechanical
stress, such as dental bridges or dental screws.
Lightweight:
- Titanium is significantly lighter than other metals like steel,
which makes titanium-based dental components more comfortable for
patients.
Aesthetic Appearance:
- The natural metallic color of titanium allows for integration with
the gum and bone tissue, providing a more aesthetic and
natural-looking result for dental implants and crowns.
Fatigue Resistance:
- Titanium, especially Gr5, has excellent fatigue resistance, which
is important for dental applications that undergo repeated
mechanical stress, such as dental implants that must withstand
biting forces.
Ease of Fabrication:
- Titanium alloys, especially Gr2, are easy to machine, weld, and
shape, allowing for precision when creating dental components like
crowns, implants, and bridges.
Applications of Titanium Discs in Dentistry
Dental Implants:
- Gr2 and Gr5 titanium discs are often used as the base material for
dental implants. The discs can be shaped into custom implant posts
that are inserted into the jawbone, allowing for osseointegration
(the fusion of bone and implant).
- Gr5, due to its strength, is particularly useful for implants that
will bear heavy loads, while Gr2 is often used in less demanding
applications.
Crowns and Bridges:
- Titanium is sometimes used in crown and bridge frameworks. While
ceramic crowns are often placed over titanium frameworks, the
titanium base provides excellent strength and corrosion resistance.
Prosthetics and Dentures:
- Titanium disks are used in the manufacture of custom dental
prosthetics or partial dentures. These prosthetics are often
created from titanium alloy due to its durability and lightweight
properties.
Orthodontic Devices:
- Titanium alloy discs can be used in the manufacture of orthodontic
components such as brackets or archwires, where both strength and
corrosion resistance are necessary for long-term use.
Conclusion
Titanium alloy medical titanium discs (Gr2 and Gr5) provide
superior strength, corrosion resistance, and biocompatibility,
making them ideal materials for dental applications. Titanium Gr2
is commonly used in dental implants and prosthetics due to its
excellent corrosion resistance and formability, while Gr5 offers
higher strength and is used for load-bearing applications.
Together, these titanium alloys ensure durable, safe, and effective
dental solutions, from implants to crowns and orthodontic
components. Their outstanding mechanical and aesthetic properties
make titanium a top choice in modern dentistry for both
functionality and patient comfort.
