Niceden Dental High - Speed Handpiece Instruction Manual
1.Product Overview
The Niceden Dental High - Speed Handpiece is a precision dental tool designed for various dental procedures. It features an air turbine, durable steel construction, and effective cooling mechanisms to ensure efficient and safe dental treatments.
2.Product Specifications
2.1 Basic Information
Type: High Speed Dental Handpiece
Place of Origin: Guangdong, China
Material: Stainless Steel (with aluminum alloy body options for some models)
Brand Name: Niceden Dental
Warranty: 3 Months
Noise Level: < 60 dB (varies by model, some up to ≤ 70 dB)
Air Pressure: 0.25 - 0.3 Mpa (some models 0.2 - 0.25 Mpa)
Bearing: Ceramic Bearing
Hole Type: 2/4 Holes
2.2 Performance - Related
Bur Size: Φ1.595 - Φ1.600mm
Torque: Standard Head 19 N.m, Torque Head 21 N.m (varies by head type)
Rotation Speed: Standard Head 350,000 RPM Max, Torque Head 280,000 RPM Max (varies by head type)
3.Product Features
3.1 Design
Standard Head Design: Allows for a 90° full viewing angle, facilitating easy access to different areas of the oral cavity, including posterior teeth.
Streamlined Design: The aluminum alloy body (for some models) offers a comfortable grip and is easy to clean.
Small Head (for fiber optic models): Enables penetration into narrow oral spaces, such as children's mouths and hard - to - reach areas in adult posterior teeth.
3.2 Cooling System
Three - Point Water Spray: Ensures effective cooling of the burs during operation, preventing overheating and enhancing the lifespan of the burs and the handpiece. Some models feature a three - way spray design for comprehensive cooling and cleaning of the treatment area.
3.3 Durability
Ceramic Bearing: Provides stable rotation speed, high cutting force, and long service life. It is also easy to replace when needed.
Durable Steel Material: Ensures the handpiece can withstand the rigors of regular dental use.
3.4 Compatibility
2/4 Hole Common Interface: Allows for easy connection to different dental units, providing flexibility in dental clinics.
4.Operation Instructions
4.1 Bur Installation
1.Ensure the handpiece is disconnected from the air supply.
2.For press - type bur taking models, press the appropriate button to open the bur chamber.
3.Insert a bur of the correct size (Φ1.595 - Φ1.600mm) into the chamber, making sure it is properly seated.
4.Release the button (if applicable) to secure the bur.
4.2 Connection to Dental Unit
1.Identify the hole type (2 - hole or 4 - hole) of your dental unit.
2.Align the handpiece's 2/4 hole connector with the corresponding interface on the dental unit.
3.Push the handpiece firmly into the interface until it is securely connected.
4.3 Operation
1.Turn on the air supply of the dental unit and adjust the pressure to the required level (0.25 - 0.3 Mpa or 0.2 - 0.25 Mpa depending on the model).
2.Start the handpiece using the dental unit's control system. The three - point water spray will activate automatically (if applicable) to cool the bur.
3.Perform dental procedures as needed, taking advantage of the handpiece's high speed, torque, and clear viewing angle.
4.4 Bur Removal
1.Disconnect the air supply and stop the handpiece operation.
2.Press the bur release button (for press - type models) to open the chamber and remove the bur.
5.Maintenance and Cleaning
5.1 Daily Cleaning
1.After each use, disconnect the handpiece from the dental unit.
2.Wipe the external surface with a clean, damp cloth to remove debris, saliva, and blood.
3.Use a suitable dental disinfectant to clean the external surface, following the disinfectant manufacturer's instructions.
5.2 Bearing Maintenance
1.Periodically check the ceramic bearing for signs of wear. If replacement is necessary, follow the manufacturer - recommended procedure.
2.Lubricate the bearing with a suitable dental handpiece lubricant at regular intervals to ensure smooth operation.
5.3 Disinfection
1.After cleaning, place the handpiece in a dental autoclave.
2.Set the autoclave to the appropriate temperature (135 °C is common for these handpieces) and follow the autoclave manufacturer's instructions for proper sterilization.
3.Allow the handpiece to cool and dry completely before storing or using it again.
6.Troubleshooting
6.1 Handpiece Not Rotating
Check Air Supply: Ensure the air pressure is within the required range (0.25 - 0.3 Mpa or 0.2 - 0.25 Mpa) and the air supply is connected properly.
Bur Check: Make sure the bur is correctly installed and not jammed in the chamber.
Connector Check: Verify that the handpiece is securely connected to the dental unit.
6.2 Insufficient Cooling
Water Spray Check: Ensure the water supply to the handpiece is connected and functioning. Check for clogged spray nozzles and clean them if necessary.
Three - Point Spray Check: For models with three - point spray, ensure all spray points are operating correctly.
6.3 Excessive Noise or Vibration
Bearing Check: Inspect the ceramic bearing for wear or damage. Replace the bearing if needed.
Bur Balance Check: Ensure the bur is balanced and not damaged, as an unbalanced bur can cause excessive noise and vibration.
7.Storage
1.Store the handpiece in a clean, dry, and well - ventilated area.
2.Keep it in a dedicated dental handpiece storage container to protect it from dust, damage, and contamination.
3.Before long - term storage, ensure the handpiece is thoroughly cleaned, disinfected, and lubricated.
Warranty
NiceDen products carry a warranty covering material and manufacturing defects; terms vary by product line. Warranty is void if failure results from misuse, unintended use, unauthorized tampering or use of non-genuine NiceDen parts. Spare parts for discontinued models are supplied for at least seven years after discontinuation.
Important Notes
Contraindications & cautions:
1.Hemophiliacs: use with extreme caution due to bleeding risk.
2.Pacemaker or severe arrhythmia patients: contraindicated—electric motor may interfere.
3.Cardiac patients, pregnant women, young children: use with extra care.
4.Do not use simultaneously with high-frequency surgical devices.
5.Avoid impact or dropping the handpiece.
6.Never press head cap while rotating; risk of patient injury.
7.Do not use damaged burs (bent, cracked, deformed, or non-compliant).
8.Do not direct light into patient’s eyes—risk of harm, especially to cataract patients.
9.Never run handpiece without bur or without bur fully locked.
10.Do not use disinfectants containing acetone or immerse in disinfectant.
11.Replace cartridge if noise becomes excessive after use.
12.Avoid rapid heating or cooling.
13.Do not use dry-heat cycles if chamber >135 °C.
14.Do not operate with air on if bur is not installed—bearing damage may result.
15.Maintain air compressor and filters regularly; use clean, dry air.
Ensure interior is moisture-free before thermal washer-disinfector or lubrication.
Never clean with benzene, thinners or sharp tools on fiber-optic rod.
Do not force wire into ports; may block coolant spray.
Never blow compressed air into handpiece head.
