. Principles and practice of filling teeth. ying the this rubber pad properly adjusted there is never any com-plaint from the patient, and it does not seem to interfere with thesecurity of the clamp. A careful study of the proper method of using the three kindsof clamps here illustrated will enable the operator to successfullymeet the most difiicult cases which apply to him for treatment, andwill render the average cases very easy of control. In some in-stances the clamp will need to be steadied by the fingers of theoperator to make certain that there shall be no movement, but theus
. Principles and practice of filling teeth. ying the this rubber pad properly adjusted there is never any com-plaint from the patient, and it does not seem to interfere with thesecurity of the clamp. A careful study of the proper method of using the three kindsof clamps here illustrated will enable the operator to successfullymeet the most difiicult cases which apply to him for treatment, andwill render the average cases very easy of control. In some in-stances the clamp will need to be steadied by the fingers of theoperator to make certain that there shall be no movement, but theusual length of time necessary to complete an operation of thiskind ought not to be sufiiciently long to make this especiallyirksome. Ligatures. In operating on proximal cavities in the anterior teeth whereclamps are not indicated, or in cases of bell-crowned molars andbicuspids where the clamp would prove too cruel, ligatures maybe used for the retention of the dam to good effect. The most EXCLUSION OF MOISTUEE DURING 24. 59. 60 PRINCIPLES AND PRACTICE OF FILLING TEETH. serviceable kind of ligature is waxed floss silk, on account of itsgreat strength in relation to its bulk, thereby admitting a suffi-ciently strong ligature to be readily forced between the teeth. In cases where the dam has a tendency to be dragged over theligature and become displaced, leaving the ligature on the tooth,the difficulty may be overcome, by the use of small glass beadsstrung on the ligature and distributed at various points around thetooth. On a molar, for instance, where the tendency would begreatest for the dam to slip, a bead may be placed respectively atthe disto-buccal, the disto-lingual, the mesio-buccal, and the mesio-lingual angles of the tooth, and these beads will present sufficientbulk to resist the displacement of the dam. In lieu of beads Dr. Fig. 25.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectdentalrestorationper
