ANGULAR-DEPENDENCE OF HENE-LASER LIGHT-SCATTERING BY BOVINE AND HUMAN DENTIN

The scattering phase functions for HeNe-laser light of dentine sections 10-20-mu-m thick were measured. The functions perpendicular to the tubules had first-order maxima at angles of 4-degrees for bovine dentine and 5-degrees for human dentine; those parallel to the tubules showed no first-order maxima. Several corrections were made before the asymmetry factors g for intertubular dentine were determined; the average values are for bovine dentine g = 0.37 and for human dentine g = 0.44.