This study examined the influence of six handling techniques on the strength of four phosphate-bonded investment (PBI) materials. The size and distribution of pores produced by the handling techniques were investigated and their effect on room temperature strength determined.
Division of Prosthetic Dentistry, Guy's, King's and St Thomas' Dental Institute, Kings College, University of London, Floor 20 Guys Tower, London SE1 9RT, UK. andrzej.s.juszczyk@kcl.ac.uk
