Age estimation by assessment of dentin translucency in permanent teeth.

AIM: : To estimate the age by evaluating the length of dentin translucency in ground sections of extracted teeth using digital scanner and tools of GIMP 2.8 software for dental age estimation. MATERIALS AND METHODS: Fifty extracted single-rooted permanent teeth from 50 different individuals and their 0.25-mm thick sections were prepared. Each tooth section was scanned and the length of dentin translucency was measured in GIMP 2.8 software. RESULTS: A linear relationship was observed between dentin translucency and age in the regression analysis. Pearson's correlation analysis showed that there was positive correlation (r = 0.93, P = 0.001) between dentin translucency and age, and the difference between the chronologic age and real age is ± 4.88 years. CONCLUSION: Dentin translucency in the apical part of the tooth can be used for estimating the age of an individual. A method to digitally select and measure translucent root dentin length was used here. This software method is easy to use and less time-consuming. The measurements obtained using this method are more precise and thus help in more accurate age estimation. Considering these benefits, this study recommends the use of digital method to assess translucency for forensic purpose.

Sweet's syndrome.

Acute febrile neutrophilic dermatosis or Sweet's syndrome (SS) is characterized by painful, erythematous plaques of rapid onset accompanied by fever. The etiology of SS is unknown and it may be associated with antecedent infections, malignancies, autoimmune diseases, drugs and vaccines, upper respiratory or gastrointestinal infection, pregnancy, inflammatory bowel disease as well as chemotherapy or idiopathic. The standard therapy for SS is systemic corticosteroids. We report a rare case of 19-year-old young male patient with complaint of severe ill-defined type of pain in both jaws associated with plaques and papules on extensor surfaces of upper and lower extremities with bodyache and myalgia. Histopathological examination suggested perivascular neutrophilic infiltration with scattered eosinophils. Sweet syndrome has rare oral manifestations secondary to hematological changes. It can also present as a paraneoplastic syndrome (malignancy-associated form of condition, which is most commonly related to acute myelogenous leukemia), which leads to poor prognosis and thus it requires careful examination, early diagnosis and long-term follow-up.

Age estimation by using dental radiographs.

BACKGROUND: Estimation of age is important in forensic sciences as a way to establish the identity of human remains. Of the various parts of the body used in age estimation, teeth are the least affected by the taphonomic process. Their durability means that they are sometimes the only body part available for study. Several methods of age estimation have been studied using bone and teeth, and among them, tooth wear and apposition of secondary dentine are the currently available non-destructive methods. OBJECTIVES: The purpose of the study was to determine the age of adults by using Kvaal's method as well as to establish the relationship of chronological age and dental age with its reliability and limitations on digital panoramic radiographs. MATERIALS AND METHODS: The present study was based on panoramic radiographs that consisted of two groups. One hundred orthopantomographs with Kvaal's criteria (Group A) and 50 orthopantomographs without Kvaal's criteria (Group B) were included. Various parameters were measured and the result was analyzed by means of SPSS-12.0 program statistical data. RESULT AND CONCLUSION: On the basis of Kvaal's criteria, the difference between chronological age and real age was 8.3 years. This suggests that the accuracy of this method depends on the precision of measurements and quality and number of the orthopantomographs.