Abstract
This study is to investigate the stress distribution in the peripheral bone tissue of blade type implant under various conditions using two-dimensional Finite Element Method (FEM) analysis and the following conclusions were obtained: 1) As the bending angle of the neck portion of the implant and the embedding inclination of implant into the bone structure increased, the generation of stress also increased. The bucco-lingual position of the superstructure increased as the bending angle and inclination of implant increased. 2) The maximum principal compressive stresses were observed at the bended neck portion and at the areas adjacent to the inclined side of the implant. 3) The estimated limit of the bucco-lingual position of the superstructure should be 2 mm (16.6 degrees when converted to bending angle) in consideration of the physiologic tolerance of bone tissue against compressive stress (2.55 kgf/mm2). 4) Compressive stresses concentrated at the cortical bone area in bone-contact condition and at the fibrous tissue area in fibrous tissue intermediating condition.
