Can 10% hydrofluoric acid be used for reconditioning of orthodontic brackets?

Dental zirconia can be etched by hydrofluoric acid.

The surface morphology and crystal structure change of dental zirconia after hydrofluoric acid (HF) etching were evaluated. Four groups of sintered zirconia specimens were 1) control group, 2) immersion in 9.5%HF at 25°C for 1, 2, 3, or 24 h, 3) immersion in 9.5%HF at 80°C for 1, 3, 5, or 30 min and 4) immersion in 48%HF at 25°C for 30 or 60 min. The specimens were evaluated under SEM and XRD. ...

Can Prostate Specific Antigen Be Used as New Biomarker for Early Diagnosis of Breast Cancer?

Introduction: As a glycoprotein, Plasma Prostate-Specific Antigen (PSA) is mainly produced by prostate epithelial cells and is used as a major diagnostic tool for prostate cancer. A group of researchers relate the elevated number of estrogen receptors in breast cancer samples to the over-production of PSA in this type of cancer. Therefore, the present study aimed to determine the participants' ...

Can Hyaluronic Acid be used to Stabilize Traumatized Teeth ?

Objective: Dental trauma may occur during daily life because of unexpected accidents. These dental traumas may affect facial esthetics and self-image; thus, successful dental trauma treatment is important. The objective of our study is to determine whether hyaluronic acid (HA) may be used as a stabilizer in the periodontal ligament space of traumatized teeth. Methods: Ex vivo study of pig mandi...

Hydrofluoric acid.

Can Design Science be Used for Design?

Design Science is currently much discussed in Information Systems research. In our analysis we distinguish two distinct threads in this discussion. The first thread is a meta-debate about the nature of IS research, and (in particular) how design work can properly be enacted as research. The second thread is a normative discussion of how design work should be conducted – important in a field whe...