H Bjelkhagen

A laser instrument for measuring tooth movements.

H Rydén, H Bjelkhagen, U Sandström, 1979, Journal of periodontology.

Early detection of enamel caries by the luminescence excited by visible laser light.

B Angmar-Månsson, H Rydén, H Bjelkhagen, 1982, Swedish dental journal.

Tooth position measurements on dental casts using holographic images.

H Rydén, H Bjelkhagen, H. Bjelkhagen, 1982, American journal of orthodontics.

The use of laser beams for measuring tooth mobility and tooth movements.

H Rydén, H Bjelkhagen, P. Söder, 1975, Journal of periodontology.

Sandwich hologram interferometry. 5: Measurement of in-plane displacement and compensation for rigid body motion.

H Bjelkhagen, N Abramson, 1979, Applied optics.