Page 40 - My FlipBook
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12 THE TECHNICAL PEOCEDXJBES IN FILLING TEETH.
Second set of line angles
A disto- (or mesio-) pulpal angle, d. p.
A linguo-pulpal angle, l. p.
A bucco-pulpal angle, b. p.
Point angles:
A disto- (or mesio-) bueco-pulpal angle, d. b. p.
A disto- (or mesio-) linguo-pulpal angle, d. l. p.
And a line angle formed by the junction of the axial and
pulpal walls.
An asio-pulpal angle, a. p.
And two point angles, formed by the junction of the pulpal
and axial walls with the lingual wall and with the buccal wall.
A puliJO-liuguo-axial angle, p. l. a.
A pulpo-bucco-axial angle, p. b. a.
The rule illustrated in the above is universal. A buccal
cavity with an occlusal step, or united with an occlusal cavity,
would also have its pulpo-axial angle. The angles belonging
to the occlusal wall of the buccal cavity would be missing, and
the angles belonging to the buccal wall of the occlusal cavity
would also be missing. This, however, makes no difference what-
ever with the naming of the remaining angles. If, however, the
pulp of the tooth is removed, removing the axial and pulpal
walls, the angles formed by the junction of these walls with the
other walls are also removed, and the angles of the pulp chamber
(sub-pulpal angles) substituted.
Labial or lingual cavities in the incisors and cuspids have —
First set of line angles
A mesio-gingival angle,
A disto-gingival angle,
A mesio-incisal angle,
A disto-incisal angle.
Second set of line angles
An axio-gingival angle,
An axio-mesial angle.
An axio-distal angle.
An axio-incisal angle.
Point angles
An axio-mesio-gingival angle.
An axio-disto-gingival angle.
An axio-mesio-incisal angle.
An axio-disto-incisal angle.
Mesial and distal cavities in the incisors and cuspids have,
:
:
:
12 THE TECHNICAL PEOCEDXJBES IN FILLING TEETH.
Second set of line angles
A disto- (or mesio-) pulpal angle, d. p.
A linguo-pulpal angle, l. p.
A bucco-pulpal angle, b. p.
Point angles:
A disto- (or mesio-) bueco-pulpal angle, d. b. p.
A disto- (or mesio-) linguo-pulpal angle, d. l. p.
And a line angle formed by the junction of the axial and
pulpal walls.
An asio-pulpal angle, a. p.
And two point angles, formed by the junction of the pulpal
and axial walls with the lingual wall and with the buccal wall.
A puliJO-liuguo-axial angle, p. l. a.
A pulpo-bucco-axial angle, p. b. a.
The rule illustrated in the above is universal. A buccal
cavity with an occlusal step, or united with an occlusal cavity,
would also have its pulpo-axial angle. The angles belonging
to the occlusal wall of the buccal cavity would be missing, and
the angles belonging to the buccal wall of the occlusal cavity
would also be missing. This, however, makes no difference what-
ever with the naming of the remaining angles. If, however, the
pulp of the tooth is removed, removing the axial and pulpal
walls, the angles formed by the junction of these walls with the
other walls are also removed, and the angles of the pulp chamber
(sub-pulpal angles) substituted.
Labial or lingual cavities in the incisors and cuspids have —
First set of line angles
A mesio-gingival angle,
A disto-gingival angle,
A mesio-incisal angle,
A disto-incisal angle.
Second set of line angles
An axio-gingival angle,
An axio-mesial angle.
An axio-distal angle.
An axio-incisal angle.
Point angles
An axio-mesio-gingival angle.
An axio-disto-gingival angle.
An axio-mesio-incisal angle.
An axio-disto-incisal angle.
Mesial and distal cavities in the incisors and cuspids have,
