Abbott, E.J. , and Rupke, E.: The Proficorder-An Instrument for Recording Waviness and Other Surface Profiles, A. S. M: E. Trans. 70: 263-270, 1948.
2.
American Standards Association, American Standard A.S.A. B46.1-1955.Surface Roughness, Waviness and Lay, New York, A.S.M.E. 1955, 24 p.
3.
Brosheer, B.C. : How Smooth Is Smooth?Am. Mach.92: 97-112, 1948; 92: 111-122, 1948.
4.
Lammie, G.A.: The Measurement of Surface Roughness of Teeth Cut by Rotary Dental Instruments . (Presented before Dental Materials Section, International Assoc. for Dental Research, March 25, 1956.)
5.
Peyton, F.A. , and Mortell, J.F., Jr.: Surface Appearance of Tooth Cavity Walls When Shaped With Various Instruments, J. D. Res . 35: 509-517, 1956.
6.
Street, E.V. : Effects of Various Instruments on Enamel Walls , J. A. D. A. 46: 274-280, 1953.
