نتایج جستجو برای: panoramic radiography
تعداد نتایج: 23591 فیلتر نتایج به سال:
conclusion the relationship between calcification of teeth and maturation of cervical bones was significant. bone maturation can be predicted by using teeth calcification stages, especially in the second molar, first molar and lateral incisor. results correlations between the two stages were observed in the first and second premolars, canine and central incisors. all these correlations were sig...
Background and Aim: On panoramic radiographs, sensitive organs, including the thyroid, are exposed to radiation. Thyroid cancer is one of the most common cancers in Iran. That is why, in this study the effective dose and risk of thyroid cancer were estimated on panoramic radiography. Materials and Methods: Seventy GR200 thermoluminescence (TLD) dosimeters were used to estimate the absorbed dos...
background and aims. tooth development is widely used in determining age and state of maturity. dental age is of high importance in forensic and pediatric dentistry and also orthodontic treatment planning .the aim of this study was to compare the accuracy of four radiographic age estimation methods. materials and methods. orthopantomographic images of 537 healthy children (age: 3.9-14.5 years o...
introdouction: impacted and partially erupted third molars can cause various symptoms and pathologies. the aim of this study was to determine the association between commonly observed pathological conditions and the impaction depth of lower third molar teeth. materials and methods: in this retrospective study, 370 panoramic radiographs including 724 lower third molars were evaluated to assess s...
introduction: gender specification among the forensic dentistry and human anthropology, is mainly based on anatomic variations. due to racial differences and environmental factors such as time of tooth extraction, osteoporosis, dietary habits, usage of dental prosthetics and periodontal diseases, there will be different results achieved. the purpose of this study is to classify the gender speci...
conclusions the relationship between calcification of tooth and maturation of cervical bones was significant. this suggested that tooth calcification stages from panoramic radiographs might be clinically useful as a maturity indicator. results all correlation values obtained were statistically significant (p < 0.001). correlations between dental development and skeletal maturity stage due to cv...
the presence of supernumerary teeth is not uncommon in the general population. they occur more frequently in patients with a family history of such teeth. it is rare to find multiple supernumeraries in individuals with no other associated disease or syndrome. there have been very few documented cases of bilateral maxillary and mandibular supernumeraries in the premolar region. an unusual case o...
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