Some programs leading to the CNM credential require a BSN prior to entry, but many will accept an individual who has a Bachelors Degree but is not an RN, and will provide an accelerated nursing education prior to the midwifery portion of the program.omen, children, and families have better lives because of the work of certified nurse-midwives (CNMs) and certified midwives (CMs). The American College of Nurse-Midwives is the professional association that represents CNMs and CMs.
being a Geologist myself, i'm continually Surprised by the unceasing use of Silica in Toothpastes ! Silica, also hydrated silica is 'Silicon dioxide', Quartz, is basically a hard-rock mineral with hardness of 7 on Mohs scale, and tooth enamel is apatite with hardness of 5, so silica will aggressively abrade the softer teeth,
Toothpaste Abrasiveness. Posted by admin on Apr 4, 2011 in Blog | Comments Off. The toothpaste you are using may be wearing away the enamel and dentin on your teeth, especially at the gumline! The use of âgritâ in toothpaste is not unlike the use of grit on sandpaper. The more grit there is, the more effective it is at removing stain and plaque. Unfortunately, a significant downside is the destruction of tooth structure. There is an abrasive index for toothpastes called the RDA Index. The higher the value, the more abrasive it is. At or below 45 may be acceptable balance between benefit and risk if you must use toothpaste. Over 45 is a matter of how quickly the loss of tooth structure can occur based on the RDA, frequency of use, type of toothbrush and brushing technique.