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CLASSIFICATION OF INSTRUMENTS
57
tion of use of the instrument; as automatic mallet, hand
plugger, pull scaler, bicuspid clamp.
3. Class Names describe the working point of the instru-
ment; as hatchet excavator, spoon excavator, round bur,
inverted cone bur, serrated plugger.
4. Sub-class Names indicate the shape of the shank; as
Mon-angle, Bin-angle, Triple-angle, Contra-angle.
These names are frequently combined in the description
of instruments, as Mon-angle Hatchet Excavator, Gingival
Margin Trimmer, Triple-angle, Contra-angle Spoon Excavator.
CLASSIFICATION OF INSTRUMENTS
For purposes of description, instruments may be divided
into (i) Cutting Instruments, (2) Condensing Instruments,
Miscellaneous Instruments. A brief description of each
(3)
class follows
I. Cutting Instruments.—Definition: Instruments for the
cutting of the hard and soft tissues of the mouth, removal of
deposits from the teeth, and for finishing fillings.
(a) Excavator (h) File
(b) Chisel (i) Saw
(c) Bur Knife
(j)
(d) Drill (k) IWheel
(e) 5-eamer (1) Point
(f) Lancet (m) Disk
(g) Scaler (n) ^Strip
(a) Excavator.—An instrument for the excavation and
removal of decay and the shaping of the internal parts of
cavities. There are five forms, viz., the hatchet, the hoe, the
spoon, the discoid and the cleoid. Their names indicate their
form, they being designed after the ordinary hatchet, hoe,
spoon, etc. (Fig. 60).
CLASSIFICATION OF INSTRUMENTS
57
tion of use of the instrument; as automatic mallet, hand
plugger, pull scaler, bicuspid clamp.
3. Class Names describe the working point of the instru-
ment; as hatchet excavator, spoon excavator, round bur,
inverted cone bur, serrated plugger.
4. Sub-class Names indicate the shape of the shank; as
Mon-angle, Bin-angle, Triple-angle, Contra-angle.
These names are frequently combined in the description
of instruments, as Mon-angle Hatchet Excavator, Gingival
Margin Trimmer, Triple-angle, Contra-angle Spoon Excavator.
CLASSIFICATION OF INSTRUMENTS
For purposes of description, instruments may be divided
into (i) Cutting Instruments, (2) Condensing Instruments,
Miscellaneous Instruments. A brief description of each
(3)
class follows
I. Cutting Instruments.—Definition: Instruments for the
cutting of the hard and soft tissues of the mouth, removal of
deposits from the teeth, and for finishing fillings.
(a) Excavator (h) File
(b) Chisel (i) Saw
(c) Bur Knife
(j)
(d) Drill (k) IWheel
(e) 5-eamer (1) Point
(f) Lancet (m) Disk
(g) Scaler (n) ^Strip
(a) Excavator.—An instrument for the excavation and
removal of decay and the shaping of the internal parts of
cavities. There are five forms, viz., the hatchet, the hoe, the
spoon, the discoid and the cleoid. Their names indicate their
form, they being designed after the ordinary hatchet, hoe,
spoon, etc. (Fig. 60).
