Greene brothers' clinical course in dental prosthesis : in three printed lectures; new and advance-test methods in impression, articulation, occlusion, roofless dentures, refits and renewals / by Jacob W. Greene.

  • Greene, Jacob W. (Jacob Wesley), 1839-1916.
Date:
[1914]
Catalogue details

Licence: Public Domain Mark

Credit: Greene brothers' clinical course in dental prosthesis : in three printed lectures; new and advance-test methods in impression, articulation, occlusion, roofless dentures, refits and renewals / by Jacob W. Greene. Source: Wellcome Collection.

Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.

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    tray within a metallic tray. By correctable I mean one that has none of the metal tray in sight. Then we transform this correctable impres- sion, or tray, into an accm*ately fitting tcs-t im- pression; at some detail when necessary. FIT METAL TRAY TO THE MOUTH. To avoid straining the tissues and distort- ing the mouth to be covered, we use only shal- low, or low=rimmed, metal trays—never deep ones. These trays are always lower on rim and shorter in length than our finished plate is to be; and never steep in the roof, lest we strain the back palate with metal and then lack ma- terial for correcting the strain. Our metal trays are low, also, in order that we may not strain the lip=andscheek tissues; and further that we may have material above the rim which can be reduced or extended in transforming the modeling = composition tray into an impression. Should you ever need a deeper metal tray (very seldom), you can trace^on an edge of mod- eling compound from a round stick of the same material as the impression, heated over a spirit lani])—here shown. This traced^on rim is hard when you want it hard and wdll be soft when so needed. For- merly I used common sealing=wax to ])uild up the edges of my metal trays; but these (Kerr's Perfection*) sticks are better, from the fact that these rims become a part of the finished impression. I know of 1)11 otluT tlwit we'll tr;icf so wi-U a-> this Kerr's Perfection. [2]
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