scholarly journals Dental age in patients with Down syndrome

2007 ◽  
Vol 21 (3) ◽  
pp. 259-264 ◽  
Author(s):  
Mari Eli Leonelli de Moraes ◽  
Michelle Silva Bastos ◽  
Luis Roque de Araujo dos Santos ◽  
Julio Cezar de Melo Castilho ◽  
Luiz Cesar de Moraes ◽  
...  

The aim of this research was to evaluate dental age in 102 patients with Down Syndrome, using panoramic radiographs. A software program developed by the Discipline of Radiology, School of Dentistry of São José dos Campos, São Paulo State University (UNESP), was used. A table of mineralization chronology of permanent teeth among Brazilians conceived by Nicodemo, Moraes and Medici Filho was used within the software. Statistical analysis of the results showed that 70.91% of the males and 61.21% of the females presented advanced dental age. Only 32.09% of the males and 38.79% of the females presented delayed dental age. Regarding the differences between the dental and chronological ages, two thirds of the males and females presented dental age with differences of up to 12 months, which means that they can be considered to be within normal standards, whereas only 18.87% of the males and 10.21% of the females presented dental age outside normal standards, with differences of over 24 months. In conclusion, the majority of the patients with Down Syndrome were considered to be within the normal standards of mineralization chronology.

2007 ◽  
Vol 01 (03) ◽  
pp. 132-138 ◽  
Author(s):  
Yildiray Sisman ◽  
Elif Tarim Ertas ◽  
Cumali Gokce ◽  
Ahmed Menku ◽  
Mustafa Ulker ◽  
...  

ABSTRACTObjectives: The aim of this study is to determine retrospectively the presence of carotid artery calcifications (CACs) detected on panoramic radiographs (PRs) in a group of Turkish population. Further, the relationships between CACs and gender, life style, and medical history were evaluated.Methods:During the years 2004 to 2006, a random sample of 1282 PRs was collected from patients older than 40 years who were being treated by the School of Dentistry, Erciyes University. Of these 1282 PRs, 750 PRs were included in this study. Medical data was collected from the archival records of the dental school.Results: About 38 (5.06%) CACs were found on the PRs of 12 (4.5%) males and 26 (5.4%) females. The CAC prevalence was not significantly different between the males and females (P=0.583). These calcifications were unilateral in 26 (68.4%) and bilateral in 12 (31.6%) subjects. Of those in the positive group, there were 12 subjects (31.58%) with hyperlipidemia, 12 subjects (31.58%) with hypertension, 7 subjects (18.4%) with diabetes mellitus, 6 subjects (15.8%) with cardiovascular disease, and 6 subjects (15.8%) with smoking history.Conclusions: This study has the highest CACs prevalence in comparison to the other studies. Therefore, dentists caring for subjects with dental problems should carefully evaluate their PRs for the evidence of CACs, and refer them for medical evaluation as indicated. So, incidental findings could provide life-saving information. (Eur J Dent 2007;1:132-138)


2004 ◽  
Vol 83 (10) ◽  
pp. 771-775 ◽  
Author(s):  
R. Lähdesmäki ◽  
L. Alvesalo

Studies on individuals with sex chromosome anomalies have demonstrated the promoting effect of the Y chromosome on tooth crown enamel and dentin growth. The present research investigated permanent tooth root lengths in 47,XYY males. The measurements were made from panoramic radiographs. The results indicate longer tooth roots in 47,XYY males compared with those in control males and females. The promoting effect of the Y chromosome on dental growth thus continues in the form of root dentin after the completion of crown growth. The results, together with those on tooth crown sizes in 47,XYY males, suggest that growth excesses are evident and final, beginning a few months after birth and continuing up to the age of 14 years, at least. The excess root dentin growth in 47,XYY males, as well as sexual dimorphism in the growth of crown and root dentin, might be caused by the same factor on the Y chromosome.


2020 ◽  
Vol 17 (2) ◽  
pp. 60
Author(s):  
Dwi Kartika Apriyono

Chronological and dental age are necessary aspects of dental age estimation. Both have a close relationship. Chronological age reflects the age of the tooth, and vice versa. Dental age estimation aims to provide the data in the field of dentistry with an accurate dental age range. In order to get the value of an accurate estimate of dental age, needed a method of estimation that has a standard deviation as low as possible and validated in a specific population groups of an individual. Demirjian method is a method frequently used in the dental age estimation. It uses the classification stages of the seven permanent teeth of mandibular left side using panoramic radiographs. Application of its method in some countries showed vary results so it needed adjustment. Blenkin standard is an adjustment of its method that changes the score of maturity stages 0-H to 1-8 and calculate the dental age by regression formula. The study aimed to assess the dental age estimation using Blenkin standard on children of Javanese ethnic in Jember region. This was an analytic descriptive study design. The samples were panoramic radiographs. The subjects were 70 samples consisting of 29 boys and 41 girls with an age range 6-12 years, and they were divided into 7 groups based on chronological age. Each tooth of the sample was calculated using Blenkin standard. The Blenkin standard showed non-significant difference with the age difference in the amount of approximately -0.22 years for boys and -0.03 years for girls (underestimation).


2015 ◽  
Vol 18 (1) ◽  
pp. 34 ◽  
Author(s):  
Heleine Maria Chagas Rêgo ◽  
José roberto Rodrigues

<p><strong>Objective</strong>: evaluate the application of the problematization methodology(PM) (Arch Maguerez), as an alternative teaching-learning method in formation post-graduation students. <strong>Material and Methods</strong>: 25 post-graduate students of  the program in Restorative Dentistry at the  School of Dentistry of ICT-Office of Science and Technology of São José dos Campos, São Paulo State University – UNESP, who were part of the discipline of Applied Teaching Higher Education , developed activities that characterized the problematization methodology (PM) and the traditional teaching methodology in force. By means of a questionnaire it was possible to assess the perception the students had of the activities made. <strong>Results</strong>: It was observed that problematization methodology (PM) was a valid alternative teaching-learning method for formation of new professors, in the opinion of students. <strong>Conclusion</strong>: problematization methodology (PM) can be applied as a complementary tool in the construction of the future professors’ knowledge, in addition to being a strategy for research and study. </p>


Author(s):  
Dr. Minti Kumari ◽  
Dr. Madhuri Kumari ◽  
Dr Anurag Rai ◽  
Dr. Navin Kumar

It is evident that hyperdontia is more common in the permanent dentition than in the primary. There is a considerable difference between males and females in the prevalence of these teeth in permanent dentition; hyperdontia is twice as common in males as in females. However, this approximation varies in terms of location, other associating syndromes that may be present, and the ethnicity of the individual. In terms of ethnicity, it can be seen that hyperdontia is in fact less common in Caucasian than in Asian populations. There is evidence to show that an individual is more likely to have hyperdontia if other members of their family also have the condition. Hence the present study was planned for evaluation of occurrence of hyperdontia in non-syndromic  population from Bihar Region. The present study was planned in Public Health Dentistry, Patna Dental College and Hospital, Patna, Bihar. Total 195 patients referred to Department of Dentistry were evaluated in the present study. Panoramic radiographs and clinical records of patients above the age of 18 years and without any syndromic features were selected for the study.  All the radiographs were examined for the presence of supernumerary teeth, their location, morphology, and number. Morphologically, teeth were classified as conical, tuberculate, supplemental, and odontoma. Early diagnosis of dental anomalies can prevent some esthetic, orthodontic, and periodontal problems, and knowledge of the prevalence and distribution of the anomalies may help clinicians to the detection of these anomalies at early stages. Our study evaluated the prevalence of selected dental anomalies; future studies should investigate the prevalence of dental anomalies of all types. Keywords: Hyperdontia, non-syndromic, panoramic radiograph, supernumerary teeth, etc.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Hilary C. Martin ◽  
◽  
Eugene J. Gardner ◽  
Kaitlin E. Samocha ◽  
Joanna Kaplanis ◽  
...  

AbstractOver 130 X-linked genes have been robustly associated with developmental disorders, and X-linked causes have been hypothesised to underlie the higher developmental disorder rates in males. Here, we evaluate the burden of X-linked coding variation in 11,044 developmental disorder patients, and find a similar rate of X-linked causes in males and females (6.0% and 6.9%, respectively), indicating that such variants do not account for the 1.4-fold male bias. We develop an improved strategy to detect X-linked developmental disorders and identify 23 significant genes, all of which were previously known, consistent with our inference that the vast majority of the X-linked burden is in known developmental disorder-associated genes. Importantly, we estimate that, in male probands, only 13% of inherited rare missense variants in known developmental disorder-associated genes are likely to be pathogenic. Our results demonstrate that statistical analysis of large datasets can refine our understanding of modes of inheritance for individual X-linked disorders.


1979 ◽  
Vol 44 (3) ◽  
pp. 354-362 ◽  
Author(s):  
Jeffrey L. Danhauer ◽  
Jonathan G. Leppler

Thirty-five normal-hearing listeners' speech discrimination scores were obtained for the California Consonant Test (CCT) in four noise competitors: (1) a four-talker complex (FT), (2) a nine-talker complex developed at Bowling Green State University (BGMTN), (3) cocktail party noise (CPN), and (4) white noise (WN). Five listeners received the CCT stimuli mixed ipsilaterally with each of the competing noises at one of seven different signal-to-noise ratios (S/Ns). Articulation functions were plotted for each noise competitor. Statistical analysis revealed that the noise types produced few differences on the CCT scores over most of the S/Ns tested, but that noise competitors similar to peripheral maskers (CPN and WN) had less effect on the scores at more severe levels than competitors more similar to perceptual maskers (FT and BGMTN). Results suggest that the CCT should be sufficiently difficult even without the presence of a noise competitor for normal-hearing listeners in many audiologic testing situations. Levels that should approximate CCT maximum discrimination (D-Max) scores for normal listeners are suggested for use when clinic time does not permit the establishment of articulation functions. The clinician should determine the S/N of the CCT tape itself before establishing listening levels.


2019 ◽  
Author(s):  
Mia Partlow ◽  
Karen Ciccone ◽  
Margaret Peak

Presentation given at TRLN Annual Meeting, Durham, North Carolina, July 1, 2019. The Hunt Library Dataspace was launched in August 2018 to provide students with access to the tools and support they need to develop critical data skills and perform data intensive tasks. It is outfitted with specialized computing hardware and software and staffed by graduate student Data Science Consultants who provide drop-in support for programming, data analysis, statistical analysis, visualization, and other data-related topics.Prior to launching the Dataspace the Libraries’ Director of Planning and Research worked with the Data &amp; Visualization Services department to develop a plan for assessing the new Dataspace services. The process began with identifying relevant goals based on NC State University and the NC State University Libraries’ strategic priorities. Next we identified measures that would assess our success in relation to those goals. This talk describes the assessment planning process, the measures and methods employed, outcomes, and how this information will be used to improve our services and inform new service development.


Irriga ◽  
2005 ◽  
Vol 10 (3) ◽  
pp. 215-228 ◽  
Author(s):  
José Eduardo Pitelli Turco ◽  
Manoel Teixeira de Faria ◽  
Edemo João Fernandes

INFLUÊNCIA DA FORMA DE OBTENÇÃO DO SALDO DE RADIAÇÃO NA COMPARAÇÃO DE MÉTODOS DE ESTIMATIVA DA EVAPOTRANSPIRAÇÃO DE REFERÊNCIA  José Eduardo Pitelli Turco; Manoel Teixeira de Faria; Edemo João FernandesDepartamento de Engenharia Rural, Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista,  Câmpus de Jaboticabal, Jaboticabal , SP, [email protected]    1        RESUMO Uma maneira freqüentemente utilizada para verificar a eficiência de métodos de estimativa da  evapotranspiração de referência (ETo) em diferentes situações e locais é por meio de comparação com um método padrão. Porém, a utilização de diferentes métodos para a obtenção do saldo de radiação, empregado na estimativa da evapotranspiração, pode conduzir a resultados distintos. O objetivo desse trabalho foi avaliar a influência do método de obtenção do saldo de radiação na comparação de quatro métodos (FAO-Tanque Classe A, FAO-Radiação Solar, Makkink e Hargreaves-Samani) com o método padrão recomendado pela FAO (Penman-Monteith). A pesquisa foi desenvolvida em área experimental do Departamento de Engenharia Rural da FCAV/UNESP, Campus de Jaboticabal, SP, onde foi instalada uma estação meteorológica automatizada e um Tanque Classe A. Por intermédio de um sistema de aquisição de dados foram obtidas medidas da radiação solar global, saldo de radiação, temperatura do ar,  umidade relativa do ar e velocidade do vento. Os resultados indicam que as formas de obtenção do saldo de radiação podem alterar  a estimativa da evapotranspiração diária obtida pelo método de Penman-Monteith.  UNITERMOS: estação meteorológica automatizada, radiação solar, Penman-Monteith  TURCO, J. E. P.; FARIA, M. T. de; FERNANDES E. J. INFLUENCE  OF  NET RADIATION OBTENTION METHOD COMPARED TO  THE  REFERENCE  EVAPOTRANSPIRATION ESTIMATE METHODS  2        ABSTRACT One way to verify the efficiency of evapotranspiration reference (ETo) estimate methods in different conditions is through the comparison to a standard method. However the utilization of several methods to obtain the net radiation using evapotranspiration reference  estimate, can end up in different results. The purpose of this paper was to evaluate the influence of the net radiation obtention method compared to four methods (FAO – Class A pan, FAO – Radiation, Makkink and Hargreaves-Samani) to the Penman-Montheith method which is considered a standard method by FAO. The research was carried out at an experimental area of the Rural Engineering Department of FCAV/São Paulo State University,  Jaboticabal, SP, Brazil. Global net radiation, air temperature, air relative humidity, and  wind speed were obtained using an automated weather station equipped with sensors. The results showed that the net radiation obtaintion methods can alter the daily evapotranspiration estimate obtained by the Penman-Montheith method. KEYWORDS:  automated  weather station, solar radiation, Penman-Monteith


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