Page 10 - My FlipBook

VI THE TECHNICAL PROCEDURES IN FILLING TEETH.

PAGE
Histological Structure of the Teeth in Relation to Cavity
Preparation 93
Histological Characters of the Enamel in Relation to the Prep-
aration of Cavities 94
Recessional Lines of the Piilpal Horns 102
Cavity Preparation 105
Brief Review of the Injuries to the Teeth by Caries, in their
Relation to Ca\aty Preparation 105
Order of Procedure in Cavity Preparation 110

Excavation op Cavities by Classes 117
Class 1. Pit and Fissure Cavities 120
Case, Small Pit Cavity in Central Fossa of an Upper First
Molar; Variations. Case, Large Pit Cavity in Cen-
tral Fossa of an Upper First Molar. Deep Occlusal
Cavities in Molars; Variations. Pit Cavities in the
Buccal Surfaces of Molars. Pit Cavities in the Lin-
gual Surfaces of Incisors.
Smooth-Surface Cavities 140
Extension for Prevention. Wliat Extension for Prevention
Means.
Class 2. Cavities in the Proximal Surfaces of the Bicuspids
and Molars 143
The Occlusal Step. Extension Limited by the Separation
of the Teeth. What Extension for Pi'evention does not
Mean. Early Discovery of Cavities. Extensions of
Caries Gingivally. Similarity of Gingival Extensions
of Caries to the Undermining of Gingival Walls of
Fillings. Plans of Excavating. Case, Mesio-oeclusal
Cavity in Upper Molar; Variations. Danger of Pulp
Exposure in Cavity Preparation. Case, Mesio-occlusal
Cavity in Upper Molar. Illustrations from Cross Sec-
tions.
Management of Weak Walls in Bicuspids and Molars 167
Case, Mesio-occlusal Cavity in Lower Second Molar. The
Lingual Groove in Lower Molars. In Upper Molars.
Undennining of the Disto-lingual Cu.sp of Upper First
Molars. Undennining of Angles of Bicuspids. Mesio-
disto-occlusal Cavities in the Bicuspids when the Pulp
is Alive and when the Pulp is Removed.