Research on the analysis of morphological characteristics in pediatric femoral neck fractures utilizing 3D CT mapping.

Proximal femoral fractures in children are challenging in clinical treatment due to their unique anatomical and biomechanical characteristics. The distribution and characteristics of fracture lines directly affect the selection of treatment options and prognosis. Pediatric proximal femur fractures exhibit distinctive features, with the distribution and characteristics of the fracture line playing a crucial role in deciding optimal treatment.

[Effect of different root canal file tapers on fracture strength of root canal wall].

Purpose: To compare the effects of different nickel-titanium rotary tapers on fracture strength of root canal and the application value of finite element analysis in root canal therapy.

Methods: Twenty four mandibular premolars were selected and all crowns were removed. All samples were randomly divided into 4 groups: A, B, C and D.

Morphology study of freeze-drying mononuclear cells of human cord blood.

The research on haematopoietic stem cells of human cord blood has become more important recently. At present, cord blood is mainly preserved at ultra-low temperatures. In the former study, we compared the effects of preserving mononuclear cells (MNC) and whole human cord blood by freeze-drying.

Freeze-drying of mononuclear cells and whole blood of human cord blood.

The research on haematopoietic stem cells of human cord blood has become more important recently. People have concentrated on the preservation of cord blood stem cells. At present, cord blood can be preserved at ultra-low temperatures.