Infected dentin is that part of dentin which is contaminated and contains the microorganism with their toxins, and demineraliaed dentin. While affected dentin is not occupied â¦by microorganism it just contains the toxins produced by microorganisms of the infected dentin, and also there is demineralization.
Definition of Metastasis. A metastasis is defined as the spread of cancer cells from their primary location to another region of the body. Cancer that has spread in this way is called metastatic cancer. Metastatic cancer is named based on the site where the cancer began.
Metastasis occurs when breast cancer cells travel through the circulatory system and seed new cancer deposits called micrometastases. These tiny tumors are at first too small to detect, but in time the cells may keep on dividing in the new location. The tumors that the dividing cells form can only be detected by scans when they grow above a certain size, so a clear scan unfortunately doesnât mean that there is no cancer.