Consequences of reaming with flat and convex reamers for bone volume and surface area of the glenoid; a basic science study.

Background: The effect of reaming on bone volume and surface area of the glenoid is not precisely known. We hypothesize that (1) convex reamers create a larger surface area than flat reamers, (2) flat reamers cause less bone loss than convex reamers, and (3) the amount of bone loss increases with the amount of version correction.

Methods: Reaming procedures with different types of reamers are performed on similar-sized uniconcave and biconcave glenoids created from Sawbones foam blocks.

Accuracy and repeatability of cone-beam computed tomography (CBCT) measurements used in the determination of facial indices in the laboratory setup.

Aim: To assess the three dimensional (3D) surface accuracy of a phantom's face acquired from a cone-beam computed tomography (CBCT) scan and to determine the reliability of selected cephalometric measurements performed with Maxilim software (Medicim N.V., Mechelen, Belgium).

Influence of joint component mechanical properties and adhesive layer thickness on stress distribution in micro-tensile bond strength specimens.

Objectives: Differences in mechanical properties between adherents and adhesive result in stress singularity at the free edge for tensile test specimens. Beyond causing premature failures, these also trigger fracture initiation at the bond edge, where the use of the maximum stress at failure as a measure of strength is not a reliable parameter for obtaining bond strength. The aim of this study is to describe the pattern of stress concentration along the interface for micro-tensile bond strength (microTBS) specimens.