作者对正常国人成年男性第三磨牙进行抗压强度实验研究。结果表明,第三磨牙具有较高的抗压强度,即具有脆性材料的特点,又具体要求有粘弹性材料的特点。实验结果得出了压缩伸长比λ,拉格朗日应力σ、拉格朗日应变γ,位移ΔL、拟弹性模量E等指标,还得出了一些重要结论。 The author conducted an experimental study on compressive strength of the third molars in normal men. The results show that the third molar has high compressive strength, which has the characteristics of brittle materials, but also the specific requirements of a viscoelastic material. The experimental results obtained the compressive elongation ratio λ, Lagrange stress σ, Lagrangian strain γ, displacement ΔL, quasi-elastic modulus E and other indicators, also made some important conclusions.