Sex discriminatory effectiveness using combinations of root lengths and crown diameters.
نویسندگان
چکیده
Using optical-scanner (OPTOCOM) and radiogrammetric measurements on mandibular permanent teeth, root length alone affords sex-discriminatory effectiveness equal to or exceeding conventional crown diameters. Combinations of root length and crown dimensions yield up to 80% accuracy in sexing with as few as two teeth, and discriminatory effectiveness of 87% with mandibular teeth alone.
منابع مشابه
Relationship between root lengths and crown diameters of corresponding teeth.
The, fact that root-length measurements may be made on 450 oblique-jaw radiographs of older adolescents with reasonable replicability even on a year-to-year basis (GARN, VAN ALSTINE & COLE, J Dent Res 57:A114, 1978) opens the possibility of exploring root-length crown-size correspondences in the mandibular dentition. Taking, then, root-length measurements for C through M2 on 122 subjects aged 1...
متن کاملCorrelations between root length and face size.
Mandibular tooth root lengths, as measured on oblique-jaw radiographs, are systematically intercorrelated, with a declining "distance" gradient from adjacent teeth to those more remote in the dental arch (Garn etal., JDentRes 57:270, 1978). They also exhibit low-order positive correlations with the corresponding crown diameters, despite temporal differences in crown completion and completion of...
متن کاملبررسی تغییرات طول ریشه دندانهای ثنایای بالا در دوران ریتنشن ارتودنسی1
Background and Aim: External apical root resorption is a common iatrogenic consequence of orthodontic treatment. Much controversy exists in the literature about changes in root lengths at post treatment periods. Although many practitioners believe that resorption becomes stable after active treatment, quantitative data are scarce. The purpose of this study was to determine quantitative changes ...
متن کاملPrevalence of Different Types of Crown Restorations after Root Canal Treatment of Posterior Teeth in Kerman, Iran
Background & Aims: Crown restoration of teeth after root canal treatment protects their remaining structure against breakage and infection of the root canal, and will replace the missing structure. This study was performed to identify the prevalence of different types of crown restorations after root canal treatment of posterior teeth in Kerman, Iran, in 2013. <stro...
متن کاملCrown and root lengths of incisors, canines, and premolars measured by cone-beam computed tomography in patients with malocclusions
OBJECTIVE The purposes of this study were to determine the accuracy of crown and root length measurements of premolars using cone-beam computed tomography (CBCT) and to generate reference CBCT-based data on incisor, canine, and premolar lengths in patients with malocclusions. METHODS Imaging was performed using a CBCT scanner with a 0.292-mm voxel size and 12-bit grayscale. The CBCT-based len...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- American journal of physical anthropology
دوره 50 1 شماره
صفحات -
تاریخ انتشار 1978