Orthodontic Treatment: Real Risk for Dental Age Estimation in Adults?

Dental age estimation becomes a challenge once the root formation is concluded. In living adults, one dental age indicator is the formation of secondary dentine, also associated with orthodontic treatment as well as root shortening. The aim of this study was to establish whether these secondary effects of orthodontic treatment could generate a statistically significant difference in dental age estimations when using Kvaal's method. The study sample included 34 pairs of pre‐ and postorthodontic panoramic radiographs, from different individuals with exactly the same age and sex distribution. Females 65%, median age 17.5 years, and males 35%, median age 22.5 years, were included. After data collection, dental age was estimated per tooth using formulae previously published. The risk of obtaining over‐estimation of age was calculated. (RR = 1.007). The changes caused by orthodontic treatment do not have any significant effect on age estimation when Kvaal et al.'s method is applied on panoramic radiographs.     

Conducting Research on Counties in the 21st Century: A New Agenda and Database Considerations

Given local, regional, national, and global events of the last few years and the ever-increasing service roles and expectations of county governments, American counties warrant greater scholarly attention. To guide researchers, the research agenda published in this journal 15 years ago has been refined and expanded. This 11-point agenda includes fiscal capacity and responsibility; the role of structure, politics, and political participation; intergovernmental relations and networking; professionalism; service delivery; environmental issues; population changes; managing conflict and promoting integration; terrorism and security; information technology; and economic development. In addition, five database concerns and needs that pose significant challenges to researchers are identified and presented for consideration.