Very high skill levels are required as the technician has to be capable of high standards in both metal and porcelain work; a training time of ten years would be common place for this level of skill.
More accurate model materials and systems can be used as the increased fee allows for this.
Dies are trimmed under a stereo microscope.
Second pours of the impression are made and work fitted down as a refining check.
Waxing optimum metal frameworks will usually take several times longer than waxing an adequate NHS framework.
Metal frame works are carefully ground for optimum thickness so as not to waste the available space.
Porcelain margins are made to all restorations. These are time consuming but allow more light transmission into the root of the prepared tooth. This reduces the contrast of brightness at the gingival margin of a crown to the darkness of adjacent soft tissue that a crown shadowed root will display.
Porcelain is built in multi layers which give a soft diffuse light transmission to mimic natural teeth. Any amount of characterisation can be built in as the highly skilled technician is capable of doing it.
Time is given to tooth form and occlusion.
The porcelain surface is not glazed like a marble but is polished to the same level as the surrounding natural dentition. Occlusal surfaces are polished to provide a low abrasion surface.
Contact areas are developed, rather than contact points or spaces, between adjacent teeth.
Final fit is refined by touch grinding under a stereo microscope and by low fusing porcelain margin additions.
At additional cost shade taking and custom finishing could be carried out in the laboratory.
COSMETIC DESIGN LTD
Greenwich House, Peel Street, Maidstone, Kent, ME14 2BP
Tel: 01622 686919, Email: info@cosmetic-design.co.uk
Greenwich House, Peel Street, Maidstone, Kent, ME14 2BP
Tel: 01622 686919, Email: info@cosmetic-design.co.uk
