scholarly journals Morphological characterization of permanent dentition of a group of Afrodescendants at Istmina (Chocó, Colombia)

2018 ◽  
Vol 25 (2) ◽  
pp. 17
Author(s):  
Pedro Asprilla ◽  
Kevin Franco ◽  
Jessica Morales ◽  
Freddy Moreno
Keyword(s):  
Cross Sectional Study ◽  
Morphological Characterization ◽  
Permanent Dentition ◽  
Indigenous Populations ◽  
Dental Morphology ◽  
State University ◽  
Arizona State University ◽  
Dental Anthropology ◽  
Cross Sectional ◽  
Central Ridge

  Aim: Characterize the permanent dentition morphology of a group of Afrodescendants of Istmina (Chocó, Colombia). Materials y methods: This quantitative cross-sectional study determined the frequency and variability of 35 incisor, canine, premolar and molar morphological features of the Arizona State University Dental Anthropology System in 100 self-described individuals as Afrodescendants (50 Female and 50 male), aged between 5 and 18 years. Results: Significant frequencies of winging (99%), double blade of the central incisors (86%), convexity of the lips (41%), crest of the shoulder (35%), and distal crest (39% to 45%) were identified (95% to 98%), central ridge (82% and 80%), mesolingual groove (79%), distolingual groove (81%), hippocampus reduction (86%), Carabelli cusp ) And cusp 7 (64%). No sexual dimorphism and bilateral asymmetry were found in the MCDS studied. Conclusions: The frequency and variability of the MCDD included in the dendrogram showed that the Isthmian group had a typical dental morphology of the Afrodescendant populations distributed on the Colombian Pacific coast, which were derived from groups of the West African coast included in The dental complex of Saharan Africa. Likewise, it was possible to detect the influence of mestizo and indigenous populations occupying the same geopolitical space.

scholarly journals Mixed dentition Morphology characteristics: a correlation between 3 non-metric dental traits in temporal and permanent dentition in scholars from Cali - Colombia

2017 ◽  
Vol 15 (2) ◽  
Author(s):  
Luisa Aguirre ◽  
Diana Castillo ◽  
Diana Solarte ◽  
Martha Moyano ◽  
Freddy Moreno
Keyword(s):  
Bilateral Symmetry ◽  
Permanent Dentition ◽  
Mixed Dentition ◽  
Dental Morphology ◽  
State University ◽  
Arizona State University ◽  
Dental Anthropology ◽  
Dental Traits ◽  
Crown Traits ◽  
Dental Crown

Summary: Objectives: Determine the correlation of the frequency and variability of three Non-metricdental crown traits (Carabelli cusp, protostylid and molar pattern cusp) between deciduous (um2/lm2)and permanent (UM1/LM1) teeth in mixed-dentition subjects. Materials and methods: A descriptivestudy was conducted to determine the dental morphology in mixed dentition stage of young subjects.The Arizona State University Dental Anthropology System ASUDAS and Grind and Sciulli Methods wereused as reference to compare frequency of dental traits in dental casts of 100 young individualsracially mixed. Results: A high expression of furrows and pits of the Carabelli cusp, a highfrequency of protostylid in degree 1 (foramen secum) and a expression of molar pattern cusp,revealed that the studied population received influences of the Mongoloid and Caucasoid dentalcomplexes. Correspondence on the traits expression among temporal and permanent dentition was alsoconfirmed. Bilateral symmetry and sexual dimorphism in the analyzed non-metric dental crown traitswere found. Key words: Dental anthropology. Dental morphology. Non-metric dental crown traits. Mixeddentition.  

scholarly journals Who Were the Natufians? A Dental Assessment of their Biological Coherency

2018 ◽  
Vol 11 (3) ◽  
pp. 4-8 ◽  
Author(s):  
Joshua G. Lipschultz
Keyword(s):  
Population Biology ◽  
Wild Plant ◽  
Biological Study ◽  
Dental Morphology ◽  
State University ◽  
Arizona State University ◽  
Dental Anthropology ◽  
Plant Resources ◽  
Hunter Gatherers ◽  
Behavioral Transition

The Natufians were complex, semi-sedentary hunter-gatherers who intensively exploited wild plant resources in the southern Levant 12,800 to 10,200 BP. They represent the human culturo-behavioral transition from simple, mobile hunter-gatherers to fully sedentary agriculturalisits. The Natufians have been the subject of much archaeological and biological study because of their pivotal postion in human prehistory. Previous studies of Natufian population biology, which mployed osteometrics, craniometrics, and odontometrics, qualitatively supported the following archaeologically-defined hypothesis. Every human skeletal sample found at each Natufian site belonged to a biologically coherent populations. The present study tests the hypothesis of Natufian biological coherency by analyzing their dental morphology. The data were collected from nearly all available Natufian dental material, using the Arizona State University Dental Anthropology System. The results of the multivariate Mean Measure of Divergence statistical analysis support the biological coherency of the Natufian population. 

scholarly journals Frequency and variability of dental morphology in deciduous and permanent dentition of a Nasa indigenous group in the municipality of Morales, Cauca, Colombia

2014 ◽  
pp. 15-24 ◽  
Author(s):  
Eider Díaz ◽  
Lorena García ◽  
Michelle Hernández ◽  
Lesly Palacio ◽  
Diana Ruiz ◽  
...  
Keyword(s):  
Sexual Dimorphism ◽  
Bilateral Symmetry ◽  
Cross Sectional Study ◽  
Permanent Dentition ◽  
Dental Morphology ◽  
Cross Sectional ◽  
Indigenous Group ◽  
Quantitative Descriptive ◽  
Crown Traits ◽  
Dental Crown

Objectives: To determine the frequency, variability, sexual dimorphism and bilateral symmetry of fourteen dental crown traits in the deciduous and permanent dentition of 60 dental models (35 women and 25 men) obtained from a native, indigenous group of Nasa school children of the Musse Ukue group in the municipality of Morales, Department of Cauca, Colombia. Material and methods: This is a quantitative descriptive, cross-sectional study that characterizes dental morphology by means of the systems for temporary dentition from Dahlberg (winging), and ASUDAS (crowding, reduction of hypocone, metaconule and cusp 6), Hanihara (central and lateral incisors in shovel-shape and cusp 7), Sciulli (double bit, layered fold protostylid, cusp pattern and cusp number) and Grine (Carabelli trait); and in permanent dentition from ASUDAS (Winging, crowding, central and lateral incisors in shovel-shape and double shovel-shape, Carabelli trait, hypocone reduction, metaconule, cusp pattern, cusp number, layered fold protostylid, cusp 6 and cusp 7). Results: The most frequent dental crown features were the shovel-shaped form, grooved and fossa forms of the Carabelli trait, metaconule, cusp pattern Y6, layered fold, protostylid (point P) and cusp 6. Sexual dimorphism was not observed and there was bilateral symmetry in the expression of these features. Conclusions: The sample studied presented a great affinity with ethnic groups belonging to the Mongoloid Dental Complex due to the frequency (expression) and variability (gradation) of the tooth crown traits, upper incisors, the Carabelli trait, the protostylid, cusp 6 and cusp 7. The influence of the Caucasoide Dental Complex associated with ethno-historical processes cannot be ruled out.

Readjustment of the Standard ASUDAS to Encompass Dental Morphological Variations in Plio-Pleistocene Hominins

2018 ◽  
Vol 30 (1-2) ◽  
pp. 32-48
Author(s):  
M. Louail ◽  
S. Prat
Keyword(s):  
Phylogenetic Relationships ◽  
Homo Sapiens ◽  
Initial Study ◽  
Morphological Characters ◽  
State University ◽  
Arizona State University ◽  
Dental Anthropology ◽  
Morphological Variations ◽  
Fossil Hominins ◽  
Fossil Hominin

The standard ASUDAS scoring system (Arizona State University Dental Anthropology System) is used to assess dental morphological variations in modern humans. It is also frequently used to study, score, and compare morphological variations in fossil hominin taxa and to examine their phylogenetic relationships. However, using ASUDAS in studies of this type is under debate because it is based on modern Homo sapiens populations and does not appear to cover all variations observed in fossil Plio-Pleistocene homi- nins. Our observations and coding of 178 dentals casts of Plio-Pleistocene specimens based on ASUDAS and from the literature have confirmed the need to adapt the standard system to fossil hominins. In this initial study, we propose that the scoring procedures for some morphological characters need to be readjusted, while others could be standardized following the ASUDAS system.

scholarly journals Visual impairment and blindness in the Xingu Indigenous Park – Brazil

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Arthur Gustavo Fernandes ◽  
Monica Alves ◽  
Roberta Andrade e Nascimento ◽  
Natalia Yumi Valdrighi ◽  
Rafael Cunha de Almeida ◽  
...  
Keyword(s):  
Visual Impairment ◽  
Minority Groups ◽  
Large Population ◽  
Population Sample ◽  
Cross Sectional Study ◽  
Indigenous Populations ◽  
Refractive Errors ◽  
Cross Sectional ◽  
Corrected Visual Acuity ◽  
Large Population Sample

Abstract Background Most estimates of visual impairment and blindness worldwide do not include data from specific minority groups as indigenous populations. We aimed to evaluate frequencies and causes of visual impairment and blindness in a large population sample from the Xingu Indigenous Park. Methods Cross-sectional study performed at Xingu Indigenous Park, Brazil, from 2016 to 2017. Residents from 16 selected villages were invited to participate and underwent a detailed ocular examination, including uncorrected (UVA) and best-corrected visual acuity (BCVA). The main cause of UVA < 20/32 per eye was determined. Results A total of 2,099 individuals were evaluated. Overall, the frequency of visual impairment and blindness was 10.00% (95% CI: 8.72–11.29%) when considering UVA, decreasing to 7.15% (95% CI: 6.04–8.25%) when considering BCVA. For each increasing year on age, the risk  of being in the visually impaired or blind category increased by 9% (p < 0.001). Cataracts (39.1%) and uncorrected refractive errors (29.1%) were the most frequent causes of visual impairment and blindness in this population. The main causes among those aged 45 years and more were cataracts (54.5%) while refractive errors were the main cause in adults aged 18 to 45 years (50.0%) and children up to 18 years old (37.1%). Conclusions A higher frequency of visual impairment and blindness was observed in the indigenous population when compared to worldwide estimates with most of the causes being preventable and/or treatable. Blindness prevention programs should focus on accessibility to eye exam, cataract surgeries and eyeglass distribution.

A study of growth changes in the mandible from deciduous to permanent dentition

2004 ◽  
Vol 27 (2) ◽  
pp. 137-142 ◽  
Author(s):  
Hung-Huey Tsai
Keyword(s):  
Cross Sectional Study ◽  
Permanent Dentition ◽  
Developmental Changes ◽  
Sectional Study ◽  
Cross Sectional ◽  
Mean Values ◽  
Males And Females ◽  
The Mean ◽  
Growth Changes ◽  
Ramus Height

This cross-sectional study investigated mandibular developmental changes in untreated normal Taiwanese from the deciduous to permanent dentition. Differences in the mean values for ramus height and body length between males and females were statistically significant after eruption of the permanent second molars. SNB angles significantly increased and gonial and L1-MP angles significantly decreased from deciduous to permanent dentition in both sexes. The SN-MP angle in females significantly decreased and ramus inclination in males significantly increased from the early mixed to permanent dentition.

scholarly journals Are severe occlusal problems more frequent in permanent than deciduous dentition?

2004 ◽  
Vol 38 (2) ◽  
pp. 247-254 ◽  
Author(s):  
Paulo Frazão ◽  
Paulo Capel Narvai ◽  
Maria do Rosário Dias de Oliveira Latorre ◽  
Roberto Augusto Castellanos
Keyword(s):  
Meta Analysis ◽  
Cross Sectional Study ◽  
Study Data ◽  
Permanent Dentition ◽  
Mixed Dentition ◽  
Deciduous Dentition ◽  
Cross Sectional ◽  
Sex Type ◽  
Probabilistic Sample ◽  
Type Of School

OBJECTIVE: To determine the prevalence and severity of occlusal problems in populations at the ages of deciduous and permanent dentition and to carry out a meta-analysis to estimate the weighted odds ratio for occlusal problems comparing both groups. METHODS: Data of a probabilistic sample (n=985) of schoolchildren aged 5 and 12 from an epidemiological study in the municipality of São Paulo, Brazil, were analyzed using univariate logistic regression (MLR). Results of cross-sectional study data published in the last 70 years were examined in the meta-analysis. RESULTS: The prevalence of occlusal problems increased from 49.0% (95% CI =47.4%-50.6%) in the deciduous dentition to 71.3% (95% CI =70.3%-72.3%) in the permanent dentition (p<0.001). Dentition was the only variable significantly associated to the severity of malocclusion (OR=1.87; 95% CI =1.43-2.45; p<0.001). The variables sex, type of school and ethnic group were not significant. The meta-analysis showed that a weighted OR of 1.95 (1.91; 1.98) when compared the second dentition period with deciduous and mixed dentition. CONCLUSIONS: In planning oral health services, some activities are indicated to reduce the proportion of moderate/severe malocclusion to levels that are socially more acceptable and economically sustainable.

Perceptions of Spiritual Care Education, Competence, and Barriers in Providing Spiritual Care Among Registered Nurses

2019 ◽  
Vol 38 (1) ◽  
pp. 41-51
Author(s):  
Alexis Green ◽  
Yeoun Soo Kim-Godwin ◽  
Carolyn W. Jones
Keyword(s):  
Registered Nurses ◽  
Spiritual Care ◽  
Online Survey ◽  
Cross Sectional Study ◽  
Care Practice ◽  
State University ◽  
Sectional Study ◽  
Frequency Method ◽  
Cross Sectional ◽  
Care Education

Purpose: The purpose of the study was to explore registered nurses’ (RNs) perceptions of their spiritual care competence (SCC), preparedness, and barriers to providing spiritual care and frequency of provision of spiritual care. Additionally, the study aimed to examine associations between spiritual care education, preparedness, competence, and frequency. Method: A descriptive, cross-sectional study included demographic questions, the Spiritual Care Competency scale, the Nurses’ Spiritual Care Therapeutics scale, the Spiritual Care Practice questionnaire subscale II, and three open-ended questions. Findings: This online survey was completed by 391 RNs enrolled in postlicensure programs at a public state university in southeastern United States. A majority of participants reported not feeling prepared to provide spiritual care. There were strong associations between receiving spiritual care education in prelicensure programs or at work, and self-reported feelings of preparedness, as well as overall SCC. The level of SCC was positively correlated with spiritual care frequency and number of years working as an RN. Conclusions: The results of this study highlight the need for spiritual care education in prelicensure programs as well as on the job training for RNs.

scholarly journals Sonographic estimation of foetal weight versus actual birth weight at term

2021 ◽  
Vol 10 (5) ◽  
pp. 1782
Author(s):  
Akinshola A. Ero-Phillips ◽  
Faosat O. Jinadu ◽  
Abimbola T. Ottun ◽  
Ayokunle M. Olumodeji
Keyword(s):  
Birth Weight ◽  
Pregnant Women ◽  
Predictive Value ◽  
Cross Sectional Study ◽  
University Teaching ◽  
Percentage Error ◽  
State University ◽  
Singleton Pregnancy ◽  
Cross Sectional ◽  
Delivery Accuracy

Background: Estimated foetal weight is very critical to decision making in the management of pregnant women. It is therefore important to evaluate the accuracy of ultrasound estimated foetal weight (USEFW) at term in our environment. We compared ultrasound estimated foetal weight at term with the actual foetal birth weight at delivery.Methods: This was a prospective, comparative cross-sectional study at the Lagos State University Teaching Hospital over a 6-month period. Four hundred and five pregnant women with normal singleton pregnancy, who had sonographic estimation of foetal weight at term, using the Hadlock IV formula, were followed up and had their actual birth weight (ABW) determined at delivery. Accuracy was determined by proportion of estimates within 10% of actual birth weight and mean absolute percentage error (MAPE). The p<0.05 was considered significant at 95% confidence interval.Results: The prevalence of macrosomia was 10.3%. At 10% margin of error, ultrasound accurately estimated the weights of 73.3% of babies. The mean USEFW was 3559.89±316.9g and mean ABW was 3477.42±422.9g with a mean difference of 82.44g (p<0.001) and MAPE of 7.11. There was positive correlation (r=0.669) between the EFW and ABW (p<0.001). The USEFW had a sensitivity of 66.7%, specificity of 91.5%, positive predictive value of 47.5% and negative predictive value of 96.0% in predicting macrosomia.Conclusions: Ultrasound estimation of foetal weight at term is reliably accurate in predicting actual birth weight in south-western Nigeria. 

scholarly journals Occlusal Characteristics of Primary Dentition among School Going Children

2020 ◽  
Vol 18 (3) ◽  
pp. 386-393
Author(s):  
Amita Rai ◽  
Bandana Koirala ◽  
Mamta Dali ◽  
Sneha Shrestha ◽  
Ashish Shrestha ◽  
...  
Keyword(s):  
Treatment Plan ◽  
Cross Sectional Study ◽  
Permanent Dentition ◽  
Primary Dentition ◽  
Open Bite ◽  
Smooth Transition ◽  
Early Screening ◽  
Cross Sectional ◽  
Need For Treatment ◽  
Caucasian Race

Background: Certain characteristics of the primary dentition have been described that may be required in the smooth transition from primary to permanent dentition and therefore development of ideal occlusion in permanent dentition. The objectives of this study were to assess different occlusal characteristics of primary dentition among school going children of Dharan, Nepal and to compare these occlusal characteristics based on gender and race. Methods: A community based cross-sectional study was conducted among 625 school children of Mongolian and Caucasian race, aged 3 to 7 years, and having complete set of primary dentition. A close-ended questionnaire was developed to gather demographic information followed by the examination of occlusal and soft tissue parameters. Results: The result showed 77.2% of the children had developmental spaces and 83.1% had primate spaces. Flush terminal plane molar and class I canine relationships were present in 68.8% and 81.6%, respectively with normal overjet (53.5%), normal overbite (41.1%), straight facial profile (86.7%) and competent lips (98.6%). Crowding was present in 35.4%, midline discrepancy in 11.3%, crossbite in 7.2%, scissor bite in 0.6% and open bite in 2.1% of the children examined. Conclusions: Most of the occlusal characteristics were desirable but with the existence of some malocclusion traits, necessitating timely recognition and correction through early screening. Gender and racial influences were also observed and it emphasizes the need for treatment plan based on them. Keywords: Gender; occlusal characteristics; primary dentition; race

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