Materials VHN (500g load) ± S.D. Ceramco 5.71 ± 0.23 Vita VMK 5.74 ± 0.11 Excelso 5.64 ± 0.20 Will-Ceram 5.84 ± 0.20 Vitadur-N 6.62 ± 0.58 Biodent-NBK100 6.66 ± 0.74 M/W Sintered Sample 6.56 ± 0.4

Table 1: Hardness Values for the teeth sampes sintered by M/W at VHN 500 g compared well with and available published values at the same load.