. Principles and practice of filling teeth. )uhvting the forceps. Theoperator should study carefully the various peculiarities of formand position ])rcs(iitc<l hy the difVcrcnt mouths and tooth of indi-viduals, so as thereby to avail himself of every advantage whichhis ingenuity may suggest. Jhere is always a best and handiestway of doing these tilings, but no one way is always the best nor 68 PRINCIPLES AND PRACTICE OF FILLING TEETH. the handiest, and to gain the most satisfactory results in every casethe operator mnst be prepared to vary his methods, so far at leastas the minor details of
. Principles and practice of filling teeth. )uhvting the forceps. Theoperator should study carefully the various peculiarities of formand position ])rcs(iitc<l hy the difVcrcnt mouths and tooth of indi-viduals, so as thereby to avail himself of every advantage whichhis ingenuity may suggest. Jhere is always a best and handiestway of doing these tilings, but no one way is always the best nor 68 PRINCIPLES AND PRACTICE OF FILLING TEETH. the handiest, and to gain the most satisfactory results in every casethe operator mnst be prepared to vary his methods, so far at leastas the minor details of execution are concerned. For the upper incisors and cuspids the holes should be punchedin the dam from an inch and a half to two inches from the upperedge, depending on the case. The former distance will be ample Fig. in most instances, but for a gentleman patient with a largemoustache the holes should be at least two inches from the edge,to aiford sufficient area of dam to perfectly cover the moustacheand hold it out of the way. In no case should the dam be allowedto pass over the nostrils and obstruct the patients breathing. Forthe lower anterior teeth the holes should be from three inches tothree inches and a half from the upper margin, so that the mouth EXCLUSION OF MOISTURE DUKIXG OPERATIONS, 69 mav be thrown well open and still admit of the dam extendingover the upper lip. To adjust the ruV)l)er to the upper anterior teeth the upper edgeof the dam should be grasped by the left hand in such a mannerthat the back of the hand looks away from the patients face, whilethe palm is turned toward the face and the ends of the fingerslook downward with the elbow raised over the patients dam should pass between the thumb and index finger and outagain between the third and little fingers, so that
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