Principles and practice of operative dentistry . III. Compound Cavities. Incisors and Cuspids: A, mesio-disto-morsal surface, central incisor, labial view; B, mesio-disto- morsal surface, central incisor, mesial view. III. Compound Cavities. Bicuspids and Molars: C, mesio-morsal surface, bicuspid; D, mcsio-morsal surface, molar; E, disto-morsal surface, molar; F, morso-buccal surface, molar. rag 3 0) ^J • o o a a ?» o 2 s,w 3 THE OF CAVITIES. 269 of the nioutli, especially in the superior third molars, but with properlycurved excavators, the right-angle hand-piece and refle
Principles and practice of operative dentistry . III. Compound Cavities. Incisors and Cuspids: A, mesio-disto-morsal surface, central incisor, labial view; B, mesio-disto- morsal surface, central incisor, mesial view. III. Compound Cavities. Bicuspids and Molars: C, mesio-morsal surface, bicuspid; D, mcsio-morsal surface, molar; E, disto-morsal surface, molar; F, morso-buccal surface, molar. rag 3 0) ^J • o o a a ?» o 2 s,w 3 THE OF CAVITIES. 269 of the nioutli, especially in the superior third molars, but with properlycurved excavators, the right-angle hand-piece and reflected light, thepreparation of such cavities becomes a comparatively simple matter. The lower first bicuspid usually presents the simplest form of cavity uponthe morsal surface of the teeth. The triangular ridge connecting thebuccal with the lingual cusp is usually very large and prominent, andunder such circumstances the mesio-distal sulcus is not strongly markedor is wanting altogether. The triangular ridge forms with the mesial anddistal marginal ridges the mesial and distal pits. These pits are usuallythe first part of the tooth to be attacked by caries. Caries attacking thepits form simple roundish, penetrating cavities, which may be opened andprepared separately with round burs. On the morsal surface of the upper first and second bicuspids, cariesusually begins in the fissure between the cusps (Fig. 331). It sometime
Size: 971px × 2573px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectdentist, bookyear1920
