This document discusses various types of medical equipment used in dental and medical laboratories. It focuses on components of the dental unit such as the dental operation light, light cures, and x-rays. It also discusses high speed and low speed handpieces used in dentistry. Other topics covered include sample room configurations, connections to dental chairs, types of compressors, autoclaves, spectrophotometers, and centrifuges. It provides details on the components, functions, and maintenance of this medical equipment.

1. Regents Biology 2015/2016
[ Training of Dental unit
and Medical laboratory
equipment ]
2017/2018
Allied Medical Science
Medical equipment technology

2.  Component of dental unit
2017/2018

3.  Dental operation light
2017/2018
Halogen LED

4.  light cure
2017/2018

5.  X-Ray in Dental unit
2017/2018

6.  Handpieces In Dentistry
2017/2018
 High Speed  Low Speed

7.  Handpieces In Dentistry
2017/2018
 High-speed Handpiece head sizes
 Latch head component of Low- speed Handpieces
 High-speed Handpieces turbine assembly

8.  High speed handpieces
2017/2018
 Types:-
 Borden 2-hole or 3-hole
 Standard 4-hole
 Standard 6-hole

9.  High speed handpieces
2017/2018
 The disadvantage:- is the exhaust air from the rotor escapes
of the connection side of the turbine or air motor and this air
can be felt on the user’s hand.

10.  High speed handpieces
2017/2018
 The advantage:-is no lose in performance and both air
supllies can be adjusted separately.

11.  High speed handpieces
2017/2018
 The advantage:-: has tubes for drive and exhaust air as well as
separate spray connections.

12.  High speed handpieces
2017/2018
 The advantage:-: has connection to contacts through which
alight can be operated which allowing optimal lighting of the
treatment area.

13.  Sample Room Configuration
2017/2018

14.  Hidden connections to the dental chair
2017/2018

15. 2017/2018

16.  Compressors
Air Compressor
Oil-FreeOil-Lubricated
2017/2018

17. 2017/2018
Oil-Lubricated Oil-Free
(Teflon coated)
 Types of Compressors

18.  Main components
 Motor
 Pressure switch (Automatic)
 Filter
 Non-returning valve
 Pressure gauge
 Water trap
 Safety valve
2017/2018

19. Automatic
Air Filter Non-returning valve
Pressure Gauge Safety valve
2017/2018

20.  Always drain moisture from the tanks.
 Clean intake vents.
 Change air filters as needed.
 Clean Tank regularly.
 Occasionally change compressor oil (oil-lubricated).
2017/2018
 Maintenance of Compressors

21. 2017/2018
 Autoclave

22.  The Autoclave
2017/2018
 An autoclave is a pressure chamber used
to sterilize equipment
 Temperature of autoclave 121 °C for around 15–20 minutes
 The pressure is 1.2 bar

23.  What can be autoclaved
2017/2018
 Surgical Instruments
 Glassware
 Plastic tubes and pipette tips
 Solutions and water
 Animal food and bedding
 Waste

24.  Principles of Autoclave Operation
2017/2018
 Steam affects on objects in the autoclave .
 Condensation creates negative pressure and draws in
additional steam .
 Moist heat kills microorganisms via coagulation of proteins .
 Two types of autoclaves
 Gravity Displacement
 Vacuum/Gravity Assisted

25.  Spectrophotometer
2017/2018
Spectronic 20

26.  Optical diagram
2017/2018

27.  Diagram of spectronic 20
2017/2018

28. 2017/2018

29. 
2017/2018
Centrifuge

30.  Speeds of motor
2017/2018
 Low to Medium - up to 10,000 rpm
 High Speed – up to 21,000 rpm
 Ultra speed – up to 90,000 rpm or more
 Overspeed dial: prevents running rotor
too fast

31.  Brushes of motor
2017/2018

32.  Type of centrifuge rotor
2017/2018