. Dental (a) Reamer, (b) Double taper pin (should be greater taper than cut shows), (c) Doublebeveled root showing pin in position, (d) Puritan Hat or matrix, (e) Matrix side and endview after burnishing and trimming to root, (f) Matrix In position on root. <7. (g) Side and rear view of facing after grinding back ready for attachment, (h) Fac-ing waxed to matrix on root ready for investment, (i) Finished crown, (j) Completedcrown cemented on root. *Clinic at Northern Ohio Dental Association, June, 1007. 38 THE DENTAL SUMMARY that of the reamer, and is inserted into the root of too
. Dental (a) Reamer, (b) Double taper pin (should be greater taper than cut shows), (c) Doublebeveled root showing pin in position, (d) Puritan Hat or matrix, (e) Matrix side and endview after burnishing and trimming to root, (f) Matrix In position on root. <7. (g) Side and rear view of facing after grinding back ready for attachment, (h) Fac-ing waxed to matrix on root ready for investment, (i) Finished crown, (j) Completedcrown cemented on root. *Clinic at Northern Ohio Dental Association, June, 1007. 38 THE DENTAL SUMMARY that of the reamer, and is inserted into the root of tooth to hecrowned. The Puritan hat, or matrix, is made of 1-500-gauge plat-inum. Select facing from any stock of high-fusing porcelainteeth. Set post in root with quick-setting cement. Place haton root and post and burnish carefully to end of same, allow-ing sufficient only to turn beyond margin of stump to indicatedemarkation point. Attach facing to matrix with sticky wax, remove and in-vest, and after burning out wax, build up with high-fusingporcelain to proper contour. Strip away the platinum, andafter etching root end of crown, cement in its proper position. This crown was first demonstrated by its designer, Dr. Miller, of Sandusky, O., at the Northern Ohio
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Keywords: ., bookcentury1900, bookdecade1900, bookiddent, booksubjectdentistry
