Dental unit

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