نتایج جستجو برای: age determination by teeth
تعداد نتایج: 7530964 فیلتر نتایج به سال:
The skeletal remains of 1338 dentate early Hawaiians (pre-Captain Cook -1778)from the Bishop Museum collection in Honolulu were examined. The proportion of children with primary or mixed dentition in the overall sample was 18.3%. All major islands were represented. Minor geographic variations in caries prevalence were observed. For the entire sample of 245 children and 2854 teeth, caries was de...
Introduction: Like other measures of human development, dental development is not in complete accordance to chronological age. Investigations show that dental age can be affected by gender, race, systemic conditions, and some other factors and consequently, be different in people of the same chronological age. A correct estimation of dental age and its development in children is of great import...
The controversial taxon Colombitherium tolimense (Mammalia) (probably Late Eocene in age) from Colombia, although known for nearly 40 years, still bears much mystery. Aside from the problematic ordinal attribution of the holotype and only specimen, its determination as an upper or lower jaw remains a highly debated issue. New observations include the presence of a contact facet on the distal fa...
PURPOSE The aim of this ex vivo study was to compare the accuracy of radiographic and electronic root canal length determination methods, compared with actual root canal length obtained with stereomicroscope. MATERIALS AND METHODS Thirty extracted single-rooted permanent teeth were used for this study. After access preparation, actual length (AL) of the root canal were determined for each too...
The aim of this study was to evaluate the relationship between age and dental maturity and to establish the standard database of dental maturity based on the Demirjian's stages, which can be used for the age estimation of Korean children. For this purpose, dental maturity was measured by the Demirjian's stages on a randomly selected sample of panoramic radiographs taken from 2706 patients betwe...
Ectodermal dysplasia is a heterogeneous condition characterized by affected ectodermal structures, among which the teeth and skin with its derivatives (hair sweat glands) are the most frequent. The aim of this work is to present the analysis of dental traits in five families (affected boys and their mothers) with hypohidrotic ectodermal dysplasia (HED), and to evaluate the importance of orofaci...
BACKGROUND Tooth replacement service is generally available in our environment. However, its utilization by the elderly has not been extensively studied. AIM To determine the utilization of tooth replacement services among the elderly. MATERIALS AND METHODS This was a retrospective study of 440 patients aged 60 years and above attending the prosthetic out-patient clinics of Lagos University...
BACKGROUND: Caries is an infectious disease that is induced by the diet. Despite its decline in all age groups on a worldwide basis, it is still a serious public health problem in children and its control should be a priority. It has been demonstrated that dental caries can gradually reduce children's weight gain, which may be reversed after complete oral rehabilitation. The main aim of this st...
An epidemiologic examination was carried out to reveal the prevalence of the periodontal diseases and oral pigmentation in Yusho patients 26 years after PCB exposure. The results obtained were as follows. 1) 158 teeth of the total 284 examined teeth had the periodontal pockets deeper than 3 mm and the lower left first molar showed the highest prevalence of the periodontal pocket among the exami...
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