Frequently Asked Questions (FAQs)
1. What are polishing discs used for in dentistry?
Polishing discs are essential in dental prophylaxis for cleaning tartar, stains, and achieving the desired dental surface brightness and finish. Different abrasion sizes and levels are used depending on the specific treatment required in each case.
2. What is the difference between buffing and polishing?
Buffing and polishing differ in terms of abrasion level. Buffing is more aggressive, using an abrasive compound to remove marks and scratches. Polishing is less intense, using a smoother abrasive material to create a shiny and reflective surface.
3. What does polishing wheels do?
Polishing wheels are used to restore the appearance of aluminum wheels by removing flaws like corrosion, curb rash, dirt, and muck. Cleaning, sanding, and polishing help maintain the good condition and visual appeal of the wheels.
4. What is the recommended speed for a dental polisher?
For tooth polishing, it is recommended to use a low-speed handpiece running at less than 5000 rpm. The speed can be controlled using a rheostat or foot pedal, and the use of ample prophy paste helps minimize heat buildup.
5. How often can you use a tooth polisher?
To maintain glossy teeth, regular cleaning that includes scaling and polishing is recommended every 6 months. However, the frequency may vary depending on the individual. Patients who accumulate buildup faster or have periodontal issues may require polishing every 2 months.
6. What are the different types of dental discs?
There are different types of dental discs: coarse blue discs for gross reduction, medium green discs for contouring, fine yellow discs for finishing, superfine white discs for polishing. Ultra-thin discs can be used for polishing adjacent surfaces. These discs are available in boxes and come with mandrels for polishing.
7. Do you need to buff before polishing?
Yes, buffing is done before polishing. To protect vehicle paint from damage caused by dry buffer heads, a small amount of wax (also used for polishing) is necessary. Buffing removes surface imperfections, while polishing enhances the appearance of the surface.
8. Does polishing rims remove scratches?
Yes, minor scratches on car rims can be removed by polishing. This can be done by using 200, 400, and 600-grit sandpaper along with abrasive polishing paste.
9. How many rpm is dental high speed?
Dental high-speed handpieces typically have speeds of 400,000 rpm or more. On contact, they operate at speeds ranging from 180,000 to 350,000 rpm.