| 摘要 |
A universal impression tray can be reshaped shortened or lengthened allowing a clinician the ability to use one tray in any clinical situation. The tray itself can be used with patients requiring complete removable dentures, root supported and implant-supported overdentures and in some selected dentate cases. The tray can be infinitely modified allowing total control by the clinician. Trays in accordance with features of the present invention are made of a thermoplastic resin that softens in warm water but tends to hold its shape until manipulated by the dentist. The resin is comprised of polycaprolactone resin, styrene resin and dental modeling compound. The proportions will vary for specific uses but are roughly 50% polycaprolactone/styrene resin and 50% dental modeling compound.
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