scholarly journals Maxillary and Mandibular Dentoalveolar Heights of French-Canadians 10 to 15 Years of Age

2008 ◽  
Vol 78 (1) ◽  
pp. 70-76 ◽  
Author(s):  
Peter H. Buschang ◽  
Roberto Carrillo ◽  
Sean S. Liu ◽  
Arto Demirjian
Keyword(s):  
Reference Data ◽  
Age Groups ◽  
Specific Reference ◽  
Central Incisor ◽  
French Canadian ◽  
French Canadians ◽  
Maxillary Central Incisor ◽  
Coefficients Of Variation ◽  
Male Subjects ◽  
Age And Sex

Abstract Objective: To establish reference data for anterior and posterior dentoalveolar heights of growing French-Canadians with untreated normal occlusions and malocclusions. Materials and Methods: The mixed longitudinal sample includes 227 French-Canadians, 119 male and 108 female, with cephalograms taken annually between 10–15 years of age. Maxillary and mandibular dentoalveolar heights were measured as the perpendicular distances of the incisor tips and first molar mesial cusp tips to the palatal (ANS-PNS) and mandibular (Go-Me) planes. Results: Male dentoalveolar heights were significantly (P < .05) greater than female heights at all ages. Dentoalveolar heights at 15 years of age were significantly larger (P < .05) than at 10 years of age, with differences ranging from 2.1–4.2 mm in male subjects and from 2.1–3.8 mm in female subjects. The greatest difference in dentoalveolar heights between the 10- and 15-year-old age groups was for the maxillary first molar; the maxillary central incisor height showed the smallest age effects. The coefficients of variation were greater for the maxillary than the mandibular dentoalveolar heights. Correlations of dentoalveolar heights within jaws ranged from 0.53 to 0.82; correlations between jaws ranged from 0.30 to 0.44. The mandibular heights showed the strongest associations. Conclusions: French-Canadian adolescents require age- and sex-specific reference data for dentoalveolar heights.

scholarly journals A Comparative Evaluation of Effect of Upper Lip Length, Age and Sex on Amount of Exposure of Maxillary Anterior Teeth

2011 ◽  
Vol 12 (1) ◽  
pp. 24-29 ◽  
Author(s):  
Paranjay Prajapati ◽  
Rajesh Sethuraman ◽  
YG Naveen
Keyword(s):  
Comparative Evaluation ◽  
Age Group ◽  
Central Incisor ◽  
Upper Lip ◽  
Maxillary Central Incisor ◽  
Anterior Teeth ◽  
Relationship Of ◽  
The Relationship ◽  
Male Subjects ◽  
Age And Sex

ABSTRACT Aim The aim was to evaluate the relationship of age, sex and lip length to the amount of exposure of maxillary incisors and canine teeth. Materials and methods Two-hundred subjects were enrolled in the study. All subjects were grouped according to the lip length and age. The exposure of maxillary central incisor and canines was measured with flexible millimeter ruler. Teeth exposure beyond the lower border of the upper lip was considered as positive exposure and the unexposed teeth were considered as negative exposure. Result In females of age group 20 to 29, 30 to 39, 40 to 49 and 50 to 59 years, the mean exposure of central incisor was 2.16, 2.1, 2.18 mm and that of canine was 0.04, −0.36, −0.44 mm. For male of age group 20 to 29, 30 to 39, 40 to 49 and 50 to 59 years exposed 2.04, 2.04, 1.84, 1.76 mm of central incisor respectively and 0.08, −0.52, −0.4 and −0.4 mm exposure of canine. Female subjects with lip length 10 to 15, 15 to 20, 21 to 25, 25 to 30 and 31 to 35 mm showed 3.7, 3.4, 2.3, 0.9, 0.25 mm exposure of central incisor and 0.35, −0.15, −0.7, −0.8, −0.6 mm exposure of canine, respectively. Male subjects exposed 3.4, 3.3, 2.05, 0.7, 0.15 mm of central incisor and 0.4, 0.3, −0.6, −0.95, −0.7 mm of canine respective to lip length. Conclusion The range of exposure of maxillary central incisors was wider than that of canine. The average dimensions for maxillary canines relating to age and sex were closer to the extremes of the range. The canine position relative to the maxillary lip appeared to be a more predictable determinant. Clinical significance The result of the study can be used as a reference according to the age, sex and the lip length of the patient to correctly place maxillary anterior teeth in prosthesis. How to cite this article Patel JR, Prajapati P, Sethuraman R YG N. A Comparative Evaluation of Effect of Upper Lip Length Age and Sex on Amount of Exposure of Maxillary Anterior Teeth. J Contemp Dent Pract 2011;12(1):24-29.

Ambulatory Blood Pressure Recordings in Children and Adolescents

PEDIATRICS ◽  
1994 ◽  
Vol 94 (2) ◽  
pp. 180-184
Author(s):  
Gregory A. Harshfield ◽  
Bruce S. Alpert ◽  
Derrick A. Pulliam ◽  
Grant W. Somes ◽  
Dawn K. Wilson
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Systolic Blood Pressure ◽  
Ambulatory Blood Pressure ◽  
Reference Data ◽  
Blood Pressure Monitoring ◽  
Age Groups ◽  
Specific Reference ◽  
Pressure Monitoring ◽  
Black And White

Objective. To provide reference data for ambulatory blood pressure monitoring (ABPM) and to determine the influence of age, sex, and race on these values. Methods. ABPM was performed on 300 healthy, normotensive boys and girls between the ages of 10 and 18 years, including 160 boys and 140 girls, of whom 149 were white and 151 were black. Mean systolic blood pressure (SBP), diastolic blood pressure (DBP), and heart rate (HR) while awake and during sleep were calculated for black and white boys and girls aged 10 to 12 years, 13 to 15 years, and 16 to 18 years. Results. Boys compared with girls 10 to 12 years of age had higher mean (±SD) SBP (115 ± 9 vs 112 ± 9 mm Hg; P < .01) and DBP (67 ± 7 vs 65 ± 5 mm Hg; P < .01) while awake. Boys compared to girls 13 to 15 years of age had higher SBP while awake (116 ± 11 vs 112 ± 8 mm Hg; P < .01). Boys compared with girls 16 to 18 years of age had higher SBP while awake (125 ± 12 vs 111 ± 9 mm Hg; P < .01) and during sleep (116 ± 11 vs 106 ± 9 mm Hg). Comparisons within sex showed similar changes with age for boys and girls. Blacks compared with whites 13 to 15 years of age had higher SBP during sleep (109 ± 11 vs 105 ± 10 mm Hg; P < .01), and blacks compared with whites 16 to 18 years of age had higher DBP during sleep (66 ± 7 vs 58 ± 6 mm Hg; P < .01). Comparisons across age groups within race showed that blacks 16 to 18 years of age had higher SBP during sleep than blacks 10 to 12 years of age (109 ± 11 vs 104 ± 10 mm Hg), and higher DBP during sleep (66 ± 7 mm Hg; P < .01) than blacks 10 to 12 years of age (61 ± 7 mm Hg; P < .01) and 13 to 15 years of age (61 ± 8; P < .01 mm Hg). The changes with age were not significant for white subjects. Conclusion. These results provide age-specific reference data for ABPM in youths. These values differ by sex (boys more than girls) and race (Blacks more than Whites).

The influence of varying maxillary central incisor vertical dimension on perceived smile aesthetics

2019 ◽  
Vol 46 (2) ◽  
pp. 137-142
Author(s):  
Elis Janaina Lira dos Santos ◽  
Alana Moura Xavier Dantas ◽  
Raíssa Marçal Vilela ◽  
Karina Jerônimo Rodrigues Santiago de Lima ◽  
Rejane Targino Soares Beltrão
Keyword(s):  
Age Groups ◽  
Educational Background ◽  
Cross Sectional Study ◽  
Central Incisor ◽  
Chi Square ◽  
Cross Sectional ◽  
Exact Test ◽  
Maxillary Central Incisor ◽  
Significant Difference ◽  
Chi Square Test

Objective: To evaluate patient perception of the smile focused on analysis of the upper incisors. Design: Cross-sectional study. Setting: Department of Clinical and Social Dentistry at Federal University of Paraíba, João Pessoa, Brazil. Participants: The sample consisted of 135 individuals (73 women and 62 men). Methods: Images with different characteristics associated with the incisal edges were shown at random and analysed using a Likert scale. Data were analysed using the Chi-square test or Fisher’s exact test with a statistically significant difference ( P < 0.05). Results: Smile I (difference of 1.5 mm in relation to the central incisor and lateral) was considered the most aesthetic, while Smile III (no difference in height between the central and lateral incisors) was the least aesthetic. A significant difference was found between perception of smile II (difference of 1 mm in relation to the central incisor and lateral) and age groups ( P < 0.005), with 31% (n = 13) of individuals aged 45–64 years considering smile II as not pleasant, 4.4% (n = 2) aged 15–24 years and 8.3% (n=4) aged 25–44 years and 4.4% (n = 2) aged 15–24 years considering the same. A significant difference was also found in relation to educational background of the assessor and smile perception, with smile III ( P = 0.0441) and smile IV ( P = 0.0053) considered the most aesthetic ( P = 0.0116). Conclusion: The smile considered most attractive among the sample was that with 1.5 mm steepness between the central and lateral incisors, while a flat smile arc was considered least attractive.

scholarly journals Age- and sex-specific reference intervals for the serum cystatin C/creatinine ratio in healthy children (0–18 years old)

2019 ◽  
Vol 47 (7) ◽  
pp. 3151-3159 ◽  
Author(s):  
Changjin Liu ◽  
Jing Wen ◽  
Jialin Xiang ◽  
Xuhong Ouyang ◽  
Yan Yang ◽  
...  
Keyword(s):  
Cystatin C ◽  
Pediatric Population ◽  
Age Groups ◽  
Serum Markers ◽  
Reference Intervals ◽  
Specific Reference ◽  
Healthy Children ◽  
Serum Samples ◽  
Serum Cystatin C ◽  
Age And Sex

Objective This study aimed to investigate serum levels of the cystatin C (CysC)/creatinine (Cr) ratio and renal serum markers (CysC, Cr, urea, and uric acid [UA]) for different ages and by sex. We also aimed to establish pediatric reference intervals for the serum CysC/Cr ratio. Methods Serum samples were collected from 4765 healthy children (0–18 years old). Serum markers of renal function were measured, and the CysC/Cr ratio of each participant was calculated and statistically analyzed. Results The renal marker CysC did not substantially change after 1 year old. Cr, urea, and UA levels generally increased with age. However, the serum CysC/Cr ratio steadily decreased with age. The CysC/Cr ratio showed significant differences in age among all age groups and varied with sex, except for in the 1 to 6-year-old groups. The overall serum CysC/Cr ratio in girls was higher than that in boys. Conclusion Reference intervals of the serum CysC/Cr ratio in the pediatric population were established. These intervals need to be partitioned by age and sex.

scholarly journals Determination of Maxillary Incisal Edge Position using Canine Visibility as a Guide – An In vivo Study

2021 ◽  
pp. 165-171
Author(s):  
Ankita Piplani ◽  
G. Ganadhipathi ◽  
M. C. Suresh Sajjan
Keyword(s):  
Age Groups ◽  
Adhesive Tape ◽  
Central Incisor ◽  
Upper Lip ◽  
Maxillary Central Incisor ◽  
Group Iii ◽  
Incisal Edge ◽  
Group I ◽  
Group Ii

Purpose:  To evaluate the reliability of the visibility of the central incisor & the canine for the cervico incisal positioning of anterior maxillary teeth related to age & sex while the upper lip was in repose in dentate patients & the development of rehabilitation recommendations for edentulous individuals with regard to the location of the maxillary incisal edge Methodology: 308 subjects [152 Males & 156 Females] belonging to the age of 30 to 59 years were selected using a simple stratified random technique. There were three age and sex groups: Group I was 30 to 39 years old, Group II was 40 to 49 years old, and Group III was 50 to 59 years old. The vertical distances (in mm) between the lower border of the upper lip and the right maxillary central incisal edge and canine tip were measured and recorded using adhesive tape marked with millimetres. A single examiner recorded all the measurements and the values were tabulated and subjected to statistical analysis. Results: Men in Groups I and II had maxillary central incisor exposure ranging from +6 to -1mm, whereas males in Group III had exposure ranging from +5 to -2mm. There was an exposure range of +6 to -2 mm in females in Group I, +7 to -2 mm in Group II, and +5 to -2 mm in Group III for the central incisors. While the canine exposure in Group I and II and Group III ranged from +2 to -4mm in females, the exposure ranged from +3 to -3mm in men of all ages. In all groups, females had statistically significant (P0.05) more central incisor and canine exposure than men. Conclusions: The canine visibility was less variable in all the age groups and in both males and females in comparison to the central incisor. When restoring edentulous individuals, the average canine exposure dimension can be employed for cervico-incisal location of the anterior maxillary teeth.

scholarly journals Reference Data for Fat Mass and Fat-Free Mass Measured by Bioelectrical Impedance in Croatian Youth

2021 ◽  
Vol 18 (16) ◽  
pp. 8501
Author(s):  
Mario Kasović ◽  
Lovro Štefan ◽  
Boris Neljak ◽  
Vilko Petrić ◽  
Damir Knjaz
Keyword(s):  
Children And Adolescents ◽  
Fat Mass ◽  
Reference Data ◽  
Age Groups ◽  
Bioelectrical Impedance ◽  
Fat Free Mass ◽  
Specific Reference ◽  
Childhood And Adolescence ◽  
Critical Periods ◽  
Wide Range

Fat mass and fat-free mass have become useful clinical indices in determining healthy growth and physical development during critical periods of childhood and adolescence; however, despite a wide range of nutritional surveillance its study is limited by a lack of reference data. The purpose of this study was to establish sex-specific and age-specific standards for fat mass and fat-free mass in a large sample of Croatian children and adolescents. In this cross-sectional study, we collected data from 12,678 participants aged 11 to 18 years old (mean age ± standard deviation (SD): 14.17 ± 2.25 years; height 164.56 ± 11.31 cm; weight: 57.45 ± 13.73 kg; body mass index: 21.24 ± 3.67 kg/m2; 53% girls). Fat mass and fat-free mass were measured three times by bioelectrical impedance. The Lambda, Mu and Sigma methods were used to create percentile charts for fat mass index (FMI) and fat-free mass index (FFMI; fat mass and fat-free mass divided by height2). Sex and age differences were calculated using an analysis of variance (ANOVA) with post hoc comparisons. Boys had lower FMI (from 2.66 to 3.89) and higher FFMI values (from 16.90 to 17.80) in all age groups, compared to girls (for FMI from 2.79 to 5.17 and for FFMI from 14.50 to 14.90, p < 0.001). In boys, FMI slightly declined until the age of 14, after which an increase from the age of 15 to 18 was observed. In girls, FMI gradually increased from the age of 11 to 18 (p < 0.001). In general, FFMI increased by age in boys [F(7,5440) = 52.674, p < 0.001], while girls had more stable FFMI across all age groups [F(7,7222) = 2.728, p = 0.057]. The newly established sex-specific and age-specific reference data could be used for national surveillance and to screen for children and adolescents with high FMI and low FFMI.

scholarly journals Cardiorespiratory Fitness Normative Values in Latin-American Adolescents: Role of Fatness Parameters

2019 ◽  
Vol 16 (20) ◽  
pp. 3889 ◽  
Author(s):  
Robinson Ramírez-Vélez ◽  
Antonio García-Hermoso ◽  
Alicia María Alonso-Martínez ◽  
César Agostinis-Sobrinho ◽  
Jorge Enrique Correa-Bautista ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Body Mass ◽  
Cardiorespiratory Fitness ◽  
Latin American ◽  
Age Groups ◽  
Specific Reference ◽  
Z Score ◽  
Anthropometric Parameters ◽  
Age And Sex

The aim of this study was to provide percentile values for a cardiorespiratory fitness (CRF) field test for Latin-American adolescents (34,461 girls and 38,044 boys) aged 13 to 15 years. The role of fatness parameters on the CRF level across age groups was also examined, with a focus on non-obese (healthy) and obese groups. CRF was assessed using the 20-meter shuttle run test protocol. Anthropometric parameters were measured using body mass index z-score (body mass index (BMI) z-score), BMI, waist circumference (WC), and waist-to-height ratio (WHtR). Participants were categorized according to the BMI z-score, WC, and WHtR international cut-off points as healthy and obese. Age- and sex-specific reference tables for the 3rd, 10th, 25th, 50th, 75th, 90th, and 97th centile scores were calculated using Cole’s lambda, mu, and sigma method. The prevalence of obesity according to the BMI z-score, WC, and WHtR was 9.6%, 11.2%, and 15.0%, respectively. Across all age and sex groups, a negative association was found between relative peak oxygen uptake ( V ˙ O2peak) and BMI, WC, and WHtR. In boys and girls there were higher levels of performance across all age groups, with most apparent gains between the ages of 13 and 14 years old. Overall, participants categorized in the healthy group had shown to have significantly higher V ˙ O2peak than their obese counterparts (p < 0.001; Cohen’s d > 1.0). In conclusion, our study provides age- and sex-specific reference values for CRF ( V ˙ O2peak, mL·kg−1·min−1). The anthropometric parameters were inversely associated with CRF in all ages in both sexes. The obese group had worse CRF than their healthy counterparts independent of anthropometric parameters used to determine obesity.

Picture Description of the Western Aphasia Battery Picnic Scene: Reference Data for the French Canadian Population

2021 ◽  
pp. 1-14
Author(s):  
Johémie Boucher ◽  
Amélie Brisebois ◽  
Antoine Slegers ◽  
Melody Courson ◽  
Marianne Désilets-Barnabé ◽  
...  
Keyword(s):  
Reference Data ◽  
Age Groups ◽  
Clinical Settings ◽  
French Canadian ◽  
Connected Speech ◽  
Data Set ◽  
Discourse Production ◽  
Canadian Population ◽  
Picture Description ◽  
Two Age Groups

Purpose The main aim of this study is to provide French Canadian reference data for quantitative measures extracted from connected speech samples elicited by the Western Aphasia Battery–Revised picnic scene, a discourse task frequently used in clinical assessment of acquired language disorders. Method Our sample consisted of 62 healthy French Canadian adults divided in two age groups: a 50- to 69-year-old group and a 70- to 90-year-old group. Results High interrater reliability scores were obtained for most of the variables. Most connected speech variables did not demonstrate an age effect. However, the 70- to 90-year-old group produced more repetitions than the 50- to 69-year-old group and displayed reduced communication efficiency (number of information content units per minute). Conclusion These findings contribute to building a reference data set to analyze descriptive discourse production in clinical settings.

scholarly journals Reference limits of high-sensitive cardiac troponin T indirectly estimated by a new approach applying data mining. A special example for measurands with a relatively high percentage of values at or below the detection limit

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Rainer Haeckel ◽  
Werner Wosniok ◽  
Antje Torge ◽  
Ralf Junker ◽  
_ _
Keyword(s):  
Detection Limit ◽  
Cardiac Troponin ◽  
Troponin T ◽  
Present Report ◽  
Age Groups ◽  
Specific Reference ◽  
Cardiac Troponin T ◽  
Decision Limit ◽  
Reference Limits ◽  
Age And Sex

AbstractA new model for the indirect estimation of reference limits (RLs) has been proposed recently and was coined TMC approach (truncated minimum chi-square estimation) which can be performed with R statistic. A spline function is applied to the RLs to get a continuous function if age is graphically presented vs. the RLs avoiding artificial “jumps” between different age groups. Most indirect models assume a power normal distribution and fail if this assumption is not fulfilled as e.g. if a relatively high percentage of measured values is below the detection limit and the data are distributed extremely skewed. This problem is handled by the TMC model. High-sensitive cardiac troponin T (hs cTnT) was chosen as an example. The hs cTnT concentration in serum or plasma is well accepted as a valuable marker in the diagnosis of acute myocardial infarction. Currently, the 99th percentile derived from a “healthy” subpopulation is the decision limit recommended by consensus groups. However, this decision limit is questioned by several authors for many reasons. In the present report, the 97.5th and the 99th percentile limits were reinvestigated by the TMC model with different subpopulations stratified according to age and sex and were finally compared to presently recommended decision limits. In summary, the generally recommended 99th percentile as a fixed decision limit should be reconsidered. It is suggested to apply more specific reference limits stratified for age and sex instead of a fixed decision limit.

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