1. Dr. N.G.P. Institute of Technology, Coimbatore –641048
(An Autonomous Institution)
Approved by AICTE, New Delhi & Affiliated to Anna University, Chennai
Recognized by UGC & Accredited by NAAC with A+ Grade and
NBA (BME, CSE, ECE, EEE and Mechanical)
Department of Biomedical Engineering
Hospital Training
3. DENTAL DEPARTMENT
• The dental department focuses on providing comprehensive oral healthcare,
including services such as
• general dentistry (check-ups, cleanings, fillings, and extractions),
• orthodontics (braces and aligners for correcting misaligned teeth),
• periodontics (treatment of gum diseases),
• endodontics (root canal therapy), and
• prosthodontics (crowns, bridges, dentures, and implants).
• It also covers oral and maxillofacial surgeries for complex procedures like
wisdom tooth removal and jaw correction, cosmetic dentistry for enhancing the
appearance of teeth (e.g., whitening and veneers), and pediatric dentistry
tailored to children's needs.
5. Light Cure Unit
• A light cure unit, also known as a dental curing light, is a crucial
tool in dentistry used for curing dental materials such as
composites and adhesives.
• These devices emit light from LED source in specific
wavelengths(400 to 500nm) to initiate polymerization and harden
these materials.
Make : Woodpecker
Model: Mini S
6. Light Source Typically LED (Light Emitting Diode)
Wavelength Usually ranges from 400 nm to 500 nm
Light Intensity
Measured in milliwatts per square
centimetre (mW/cm²)
Timer Adjustable timer settings
Modes
Typically offers multiple curing modes
(e.g., ramping, pulse)
Tip Size
Different sizes available for various
applications
Battery Rechargeable battery
Display Digital display for settings and timer
SPECIFICATIONS:
7. Troubleshooting
• Insufficient Curing:
• Check light intensity output with a radiometer.
• Ensure proper contact between the light guide tip and the material.
• Replace or recharge batteries if applicable.
• Overheating or Malfunction:
• Allow the unit to cool down if it overheats.
• Inspect for any visible damage or irregularities.
8. Calibration and Maintenance
Calibration:
• Place the radiometer sensor tip under the curing light tip.
• Activate the curing light to measure light intensity output.
• Compare with recommended values from the manufacturer.
• Adjust settings or seek service if discrepancies are found.
Maintenance:
• Cleaning
• Storage
• Battery Management
• Safety Checks
9. Scaler unit
• Dental scalers utilize controlled vibrations to facilitate the efficient
removal of plaque, calculus (tartar), and biofilm from tooth surfaces.
• There are two primary types:
• ultrasonic and sonic. Typically 28 kHz.
• Ultrasonic scalers employ high-frequency sound waves to generate
microscopic vibrations in a water stream.
• These vibrations gently disrupt and dislodge deposits without damaging
the underlying tooth enamel.
• Sonic scalers, on the other hand, operate at lower frequencies but deliver a
higher water flow rate.
• The combined action of water pressure and vibrations effectively removes
debris, promoting optimal oral hygiene and preventing gum disease.
11. Ultrasonic Frequency 28 kHz
Power Output 10-50W
Handpiece Material Aluminium alloy
Handpiece Cable Length 2.5 m
Water Supply built-in
SPECIFICATIONS:
12. Troubleshooting
• Low water pressure - Replace the water filter according to the
manufacturer's recommendations and user manual instructions.
• Weak water spray - If water pressure is adequate, check for leaks or
blockages in the handpiece or water line.
• No vibration from handpiece - Ensure the handpiece is securely and
properly attached to the scaler unit as per the user manual.
• Leaking handpiece - Replace the O-rings in the handpiece
13. Calibration and Maintenance
Calibration:
• Water Flow And Pressure Regulation
• Handpiece And Tip Maintenance
• Filter Replacement
• Visual Inspection
Maintenance:
• Deeper Cleaning
• Refill And Replenish
• Descaling
• Preventive Maintenance