: INSTRUMENT AND EQUIPMENT IN A DENTAL LABORATORY

Question 1

a mechanical device that represents the
temporomandibular joint (TMJ) and the jaw members, to
which maxilla and mandibular casts are attached.
o It is used to set artificial teeth in prosthetic appliance
fabrication.

Answer 1

Articulator

Question 2

it is used as an abrasive to remove
dental plaster from an acrylic resin prosthesis during
the duplicating procedure.

Answer 2

Shell blaster

Question 3

it is used as an abrasive for
removable partial denture to remove casting
investment. Not advised to use in acrylic and
porcelain as it will destroy or ruin the prosthesis.

Answer 3

Sand blaster

Question 4

used in the laboratory for heating waxes,
carrying instruments, and other procedures where an
open flame is needed.

Answer 4

Burner

Question 5

device that causes molten metal into
a mold.

Answer 5

Casting Machine

Question 6

it is used to fracture or break artificial stone.

Answer 6

Pneumatic Chisel

Question 7

– it is used for finishing and polishing of dentures.

Answer 7

Chuck

Question 8

a device where ultrasonic vibration are
necessary to clean dental restorations, appliances, and
small equipment item.

Answer 8

Cleaning Unit

Question 9

a container in which dental alloys are melted.

Answer 9

Crucible

Question 10

a device to process dentures. There are
two (2) methods of curing:
a. The short process is done in 20-25 minutes in
boiling water.
b. The long process is done for 9 hours in an electrical
furnace at 90°C.

Question 11

it is used to form the mold during the
processing of dentures.

Answer 11

Denture Flask

Question 12

it is used to hold burs, polishing
stones, and mounted points.

Answer 12

Straight Handpiece

Question 13

same as the straight handpiece,
the revolution per minute is faster and comfortable to the
operator.

Answer 13

Electric Handpiece

Question 14

– it is used primarily for wax dipping
refractory cast in removable partial dentures.

Answer 14

Beeswax Heater

Question 15

like chuck, it is used for grinding,
finishing, and polishing procedures in the laboratory.

Answer 15

Dental Lathe

Question 16

it is used for wax elimination prior to
casting of metal.

Answer 16

Oven for burnout

Question 17

it is used for firing dental porcelain
in constructing crowns and fixed partial dentures.

Answer 17

Oven for porcelain

Question 18

a device used for curing the relined
dentures and for repair of dentures

Answer 18

Pressure Pot

Question 19

it is used for pressing and for packing acrylic
resin into the mold.

Answer 19

Presser

Question 20

it is used for precision weighing and to
weigh precious metals and alloys.

Answer 20

Balance Scale

Question 21

– it is a device used to join two pieces of
metal together

Answer 21

Spot Welder

Question 22

it is used to clean surface of metal
ceramic frameworks and to remove wax and debris from
master cast.

Answer 22

Steam Cleaner