While traditional veneers are much thicker, requiring the grinding down of your original tooth structure, Lumineers are so thin that little to no tooth reduction is necessary. Additionally, the durability of Lumineers allows them to resist wear and remain resilient to last over 20 years.
CALIBRATION - An operation that, under specified conditions, in a first. step establishes a relation between the quantity values with  measurement. uncertainties  provided by measurement standards and corresponding. indications with associated  measurement uncertainties  and, in a second.
An Improved High-Precision Calibration Procedure. For Reference Standard Hydrometers. Horace A. Bowman and William H. Gallagher. Institute for Basic Standards, National Bureau of Standards, Washington, D.C. 20234. (June 24, 1969) This paper describes a method of calibrating hydrometers which. although no more accurate. that the technique used heretofore at the National Bureau of Sta ndards, reduces calibration time.