For crown preps,are there instruments that you can use to check your angles?

[Anna.lario]

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For crown preps,are there instruments that you can use to check your angles

 

[power5643]

you can always use your probe

 

[Vicviper]

Diamond burs all have a known taper, you can use that, but most people just use a mirror to look down at your prep as well from the front and sides. You'll get a feel for it eventually. You don't want perfectly parallel but you also don't want a tepee.

 

[FanOfCostco]

cad/cam scanners.