Ultrasound elastographic assessment of the stiffness of the anteromedial knee joint capsule at varying knee angles.

Background: In vivo evaluation of the elastic properties of the knee joint capsule has not been adequately performed.

Objectives: To establish a methodology to assess the stiffness of the normal knee joint capsule over a range of knee flexion angles using ultrasound elastography.

Methods: Ultrasound elastography with an acoustic coupler was used to assess the stiffness of the anteromedial capsule of the knee joints of 10 male (mean age 22.

Evaluation of permanent and primary enamel and dentin mineral density using micro-computed tomography.

Objectives: The present study was performed to investigate the mineral density distribution in enamel and dentin for both permanent and primary teeth and to establish the standard density per tooth type using micro-computed tomography (CT).

Methods: Fifty-seven extracted human teeth (37 permanent, 20 primary) were evaluated in the present study. The enamel and dentin mineral densities in the extracted teeth were measured using micro-CT.