Sažetak sa skupa
Porcelain-Fused-to-Titanium Restorations From Implant Level - Preliminary Observations
P. Stendera
D. Matenko
P. Grochowski
Sažetak
Until a few years ago use of the abutment was necessary for making fixed restorations retained on Branemark implants. For multiple-unit restorations, abutments served as a”misfit eliminating zone” for the framework cast with gold alloy. Single crowns were made as restorations cemented on prefabricated abutments. Thanks to the
use of modern laboratory methods, it is now possible to produce multiple-unit restorations retained directly on implants with the metal part made of titanium alloy. One such method is the All-in-One system, in which the metal part of the restoration is made of one piece of titanium, with the use of a computer aided milling machine. Thanks to the development in porcelain fusing to titanium, it is
also possible to make single crowns as a screw-retained restoration seated directly on an implant. For this purpose, TiAdapt abutments were used with own modification of UCLA-type crown production.
The paper describes some advantages and disadvantages of the above mentioned systems and basics of their use. The study group consisted of 22 restorations (12 bridges and 10 crowns) made for 14 patients. Most of them (18) were made for the lower jaw. All bridges were twoor three-unit restorations. The observation period was from
three months up to two years. Complications were observed in two cases. Both of them consisted of cracks in the porcelain. Due to the design of the restorations, the complications were eliminated without any problems. A possible cause of the porcelain cracking was the excessive bulk of the porcelain in areas where there had been lack
of metal support for the veneering layer. Due to the easy application and positive aesthetic and functional results the described methods seem to be worth recommending, with some clinical limitations.
Ključne riječi
Hrčak ID:
10102
URI
Datum izdavanja:
15.9.2002.
Posjeta: 744 *