Manual of dental surgery and pathology . not closely surrounded by bone as they becomeafterwards. A detained root or tooth may also have the effect of causingan erupting permanent tooth to become twisted on its long axis,80 that its inner and outer edges become placed in the antero-posterior direction, and its cutting or masticating edge at rightangles to the opjiosing tooth of the opposite jaw. When thiscondition has occurred in an upper central or lateral incisor orcusj»idatus, it has been recommended that where there is a suffi-ciency of room the case shouhl be treated by what nnxy be terme
Manual of dental surgery and pathology . not closely surrounded by bone as they becomeafterwards. A detained root or tooth may also have the effect of causingan erupting permanent tooth to become twisted on its long axis,80 that its inner and outer edges become placed in the antero-posterior direction, and its cutting or masticating edge at rightangles to the opjiosing tooth of the opposite jaw. When thiscondition has occurred in an upper central or lateral incisor orcusj»idatus, it has been recommended that where there is a suffi-ciency of room the case shouhl be treated by what nnxy be termedimmediate torsion, i. «., by grasping the tooth near its neck witha iiair of forceps, guarded witli tliin leather or other substance IRREGULARITIES IN PERMANENT TEETH. 73 to prevent injury and give firmness, and then steadily but forci-blv rotating it into position. Against such practice when lirstadvocated we urged a protest, on the ground of injury likely tooccur to vessels and nerves upon which the vitality of a tooth Fi<r. Plate adapted for drawing inwards front teeth of the upper jaw. The right central incisor hasbeen erupted anterior to its temporary predecessor, the root of which is figured, and which shouldof course be extracted prior to treatment, which will consist either in drawing the central incisorback by an elastic India-rubber band or by a band of platinum, which passes in front of the toothand which by means of nuts and screws at the side of the plate can be gradually tightened byturning the nuts. The latter arrangement is best suited in the case of having to act on severalteeth at once. Fio;. 38. depends, and the results of that operation which liave comeunder our notice have verified our predictions. We recentlyhad to remove a necrosed upper right lateral tooth which hadbeen thus rotated ; yet the eminence of the operator was agaurantee that the operation had beenmost carefully performed. The toothhad never come down to the properlength, and was ve
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectdentist, bookyear1882
