. The science and practice of dental surgery. ed, as it necessitates imme-diate absorption of bone or tooth or both,whereas it is highly probable that all othertooth movements are the combined result ofabsorption and bending of bone. A single tooth may be depressed in its socketby soldering to the bow an auxiliary wire, which will pass across the soft tissues beyond the necksof the teeth. It should be soldered to the bowon either side of the tooth to be moved, andimmediately above the tooth should have aspur, directed towards the sulcus, solderedto it. The tooth itself should have a bandcement
. The science and practice of dental surgery. ed, as it necessitates imme-diate absorption of bone or tooth or both,whereas it is highly probable that all othertooth movements are the combined result ofabsorption and bending of bone. A single tooth may be depressed in its socketby soldering to the bow an auxiliary wire, which will pass across the soft tissues beyond the necksof the teeth. It should be soldered to the bowon either side of the tooth to be moved, andimmediately above the tooth should have aspur, directed towards the sulcus, solderedto it. The tooth itself should have a bandcemented to it as near the incisal edge aspossible, with a labial spur directed towardsthe incisal edge of the tooth (see Fig. 326). Inter-maxillary force may be combined withthe method described, the rubber band passingfrom the spur on the band on the elongatedtooth over the auxiliary wire to a spur on thelower bow. (2) Removable Appliances.—A band isfixed to the tooth as before but need not be sonear the incisal edge; a labial spur is arranged. Fig. 320.—Depression of a single Buccal view. B. Cross-section. (a) Wire bow, with (6) an accessory wire soldered to it as shown. (c) Plain band with (<i) spur to be engaged by (/) a rubber band, attached also to (e) a spur on (b).The pull of the rubber band depresses the bow (a) must be firmly tied to as many teeth aspossible. on it by suitably cutting the seam. A buccalwire on a vulcanite plate is arranged to engagethis spur and to exert pressure on it towardsthe root of the tooth. Clasps will be necessaryto maintain the plate in position. F. Elongation (1) Fixed Appliances.—{a) A ligature issecurely fixed to the neck of the tooth and theends are then twisted round the bow; if thelatter is nearer the incisal edges of the ap-proximal teeth than the tooth to be elongated,this will suffice to perform the movement. (b) The tooth to be elongated is banded ; on thelabial surface of the band a spur is soldered ; ar
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdentistry, bookyear19
