The Dental cosmos . hich it is soldered. The appliance is removed from timeto time, and the clasping ends of the spring bent toward each other toexert the pressure required. (See Fig. 14.) A similar appliancewas used for retaining the superior incisors and cuspids, that had beentoo prominent and were drawn back, the cuspids filling the spaceformerly occupied by the first bicuspids, which had been this instance a half-round gold spring wire extended from the *Vol. XXXII, page 875. VOL. XXXIII.—77 THE DENTAL COSMOS. labial surface of the front teeth back on either side of the arch and
The Dental cosmos . hich it is soldered. The appliance is removed from timeto time, and the clasping ends of the spring bent toward each other toexert the pressure required. (See Fig. 14.) A similar appliancewas used for retaining the superior incisors and cuspids, that had beentoo prominent and were drawn back, the cuspids filling the spaceformerly occupied by the first bicuspids, which had been this instance a half-round gold spring wire extended from the *Vol. XXXII, page 875. VOL. XXXIII.—77 THE DENTAL COSMOS. labial surface of the front teeth back on either side of the arch andwas anchored to the second bicuspid, the crib consisting of the partialclasp on the labial side and the spring wire on the lingual side ofeach respectively. The bicuspids had not moved forward perceptiblyat the end of ten months, and the front teeth were perfectly retained. It is obvious that an appliance for spreading the lower arch ofteeth should not extend below the gum line, as the tissues are tender, Fig. and a covering plate is not tolerated without more or less rebellion,especially if the arch is to be expanded to any extent. Indeed, thereis no apparent advantage in extending the appliance onto the mucousmembrane in any ordinary case, as the alveolar process will followand surround the teeth in almost any position they are made to as-sume. An appliance like Fig. 15 may be easily constructed and will Fig. 15
Size: 1726px × 1448px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthor, bookcentury1800, bookdecade1890, booksubjectdentistry
