Ivoclar Vivadent Zenostar - Manual (Page 25)

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Processing after sintering
After sintering, the restorations can be adjusted using suitable instruments. If diamond grinding instruments are used for adjustment,
the restoration must be cooled with water. As an alternative, other grinding instruments may be used in conjunction with a dental-
lab handpiece. Please observe the recommendation of the manufacturer regarding grinding instruments.
Use the following procedure for adjusting densely sintered, cooled Zenostar restorations:
Adjustments of sintered Zenostar restorations should be kept to a minimum.
The restoration should only be mechanically adjusted if absolutely necessary.
Place the Zenostar restoration on the model, check fit and make slight adjustments, if necessary.
Check marginal areas and slightly finish, if necessary.
Use only low pressure for finishing.
When finishing frameworks, avoid the design of sharp edges, aim for rounded ones.
Do not use a separating disc to separate interdental areas.
Make sure that the minimum layer thickness of the restoration is maintained after adjustment.
Use only immaculate grinding instruments.
Check the restoration for defects and fractures before and after further processing.
Sintered milling dust on the restoration must be removed before veneering.
Before veneering, clean the frameworks with running water or the steam jet, and dry.