Can you Overcure composite?
While you cannot overcure materials, heat damage can occur in a patient’s soft tissue if you have a high-output curing light or are curing for prolonged periods.
What is the light dentist use for fillings?
This “blue wand” is a curing light. This light is used for polymerization of light-cured resin-based composites or, in other words, the white filling that we put in a tooth. There are several materials that are curable by light. These lights can be Tungsten halogen, LED, plasma, and laser.
How do you make composite fillings last longer?
Here are some oral care tips that will help you keep your composite filling for longer.
- Brush and floss your teeth daily every after meals.
- Avoid foods that can stain your filling such as tea, coffee and wine.
- Minimise your sugary food intakes to lessen your probability of tooth decay.
How long should you light cure composite?
They recommended using 60 seconds of light cure with an intensity of at least 400 mW/cm2 for each 2-mm layer of composite. More recently, in 2013, Ilie and others31 suggested that when using an LED curing light, a minimum of 20 seconds should be used for a 2-mm layer of composite.
What happens if we use more light cure than recommended on a composite resin?
In this study, curing the adhesive resin layer longer than recommended by the manufacturer actually resulted in a higher degree of conversion and a thinner oxygen inhibited layer. On an adhesive layer of bonding resin under a direct composite, a lot of light might be too much.
How does blue light harden fillings?
“The light sends wavelengths of blue-violet light to the composite, which triggers hardening,” says Alpesh Patel, a rising MCG School of Dentistry junior. “The light waves produce free radicals that activate the catalyst and speed up polymerization of the composite resin.
What is the best intensity of light cure used?
300 mW/cm2
The light intensity of curing devices is defined by the International Organization for Standardization as the ISO 4049 standard, which recommends an intensity of 300 mW/cm2 with a wavelength bandwidth of 400-515 nm on the tip of the light curing device.
Can you repair a composite filling?
Currently there is no evidence to support repairing or replacing resin composite fillings for adults.
Can I get a filling redone?
You’ll need to have the filling replaced to prevent new decay. If you have a composite filling, it’s normal for it to discolor over time. As a result, it can stick out like a sore thumb. You can have it replaced to ensure it continues to blend in seamlessly when you smile.
How long do posterior composite fillings last?
While composite fillings are not as strong as amalgam ones, they are still quite strong and can last for many years. Many composite fillings last at least 5 years. There are many instances in which they can last up to 10 years or more.