Using Teeth to Determine Where you are From

An interesting article titled “The Pb isotopic record of historical to modern human lead exposure,” appears in the journal Science of The Total Environment written by George D. Kamenov and Brian L. Gulson (vol. 490, pp. 861-870, 2014). George Kamenov is a University of Florida geology professor. The article describes how trace amounts of lead present in teeth can give clues about what geographical region the teeth (and the person) came from. What is interesting about this article, is that the lead in the teeth can be used to pinpoint the geographic area where the teeth originated from. This is because lead is composed of four different isotopes which fluctuate in different rocks and soils around the world. As children grow they inhale dust and ingest soil which contains the different isotopes of lead. As tooth enamel forms during childhood, it … Read more

The Image Gently Campaign in Dentistry

If you keep abreast at all with radiation exposure from medical imaging, you may have heard of the Image Wisely campaign. The Imagely Wisely Campaign was designed to have people aware of the fact that certain medical imaging tests such as CT exams are sometimes over used and do not have to be used in certain instances. The goal is to reduce radiation exposure to patients while still providing good medical care, see http://www.imagewisely.org/. The Image Gently campaign is designed to provide information to parents and others to help reduce exposure to radiation for children, see http://imagegently.org/, and has been around since 2007. The campaign is supported by the Alliance for Radiation Safety in Pediatric Imaging, which is a coalition of healthcare organizations dedicated to providing safe and high-quality pediatric imaging. Recently, it has been announced that a new Image Gently campaign in dentistry … Read more

Familarize Yourself with the ADA’s Principles of Ethics and Code of Professional Conduct

The American Dental Association also know as the ADA, in 2012, update their Principle of Ethics and Code of Professional Conduct document. It is available over at http://www.ada.org/~/media/ADA/About%20the%20ADA/Files/code_of_ethics_2012.ashx. As many Americans make trips to the dentist, it is useful to familiarize yourself with the ADA’s document to better determine if your dentist is being ethical and serving your needs well. If you don’t feel this is the case you have options to report your dentist and of course you can find a new dentist. Additional comments on the ethics and professional conduct of the ADA and it’s members is over at http://www.ada.org/en/about-the-ada/principles-of-ethics-code-of-professional-conduct. It states “The dental profession holds a special position of trust within society. As a consequence, society affords the profession certain privileges that are not available to members of the public-at-large. In return, the profession makes a commitment … Read more

Dental Patients Warned of Possible HIV and Hepatitis Exposure in Pennsylvania

Recently, patients of a long time dentist in Pennsylvania have been warned of possible exposure to HIV and hepatitis B and C. The dental license of the 74 year old dentist has been suspended as state officials investigate. It is suspected that he was not properly sterilizing his instruments. No reports of disease or transmission have occurred. The dentist is a long time dentist of a school district. In an interview with one of the school’s students who was examined by the dentist and her mother, it was stated the dentist didn’t have gloves on when treating patients and didn’t wash his hands between patients. The full interview can be seen over at http://www.nbcnews.com/watch/nbc-news-channel/dirty-dentist-has-town-clenching-its-teeth-282301507827 provided by NBC News. In the past, other cases have occurred where dentists or oral surgeons have been suspected of not following proper procedures to avoid spreading disease. For … Read more

Does Fluoride Cause Additional Hip Fractures?

Researchers are interested in studying fluoride and it’s possible benefits and risks due to it commonly being in water supplies of communities. This is because fluoride is known to help prevent cavities. Even so, some question if putting fluoride in everyone’s water is the right thing to do as some people could experience problems from the water. For example, several studies have shown Large Amounts of Fluoride Consumed by Young Children Leads to Fluorosis. Hence, it is beneficial to minimize fluoride exposure to young children. Others have looked at the opposite end of the age spectrum: old people. Researchers in Sweden have investigated the possibility that fluoride in the water can lead to additional hip fractures. The study consisted of a large amount of Swedish residents who were exposured to fluoride levels with the researchers testing a hypothesis that there … Read more