scholarly journals Anterior Open Bite and Speech Disorders in Children with Down Syndrome

2008 ◽  
Vol 78 (2) ◽  
pp. 221-227 ◽  
Author(s):  
Rubén López-Pérez ◽  
S. Aida Borges-Yáñez ◽  
Patricia López-Morales
Keyword(s):  
Down Syndrome ◽  
Speech Disorders ◽  
Open Bite ◽  
Control Group ◽  
Anterior Open Bite ◽  
Chi Square ◽  
Children With Down Syndrome ◽  
Mexican Children ◽  
Significant Difference ◽  
Chi Square Test

Abstract Objective: To estimate the prevalence and to determine if there is an association between anterior open bite and the presence of speech disorders in a group of Mexican children with Down syndrome (DS). Materials and Methods: The subjects were a group of Mexican children with Down syndrome (DG) and a control group (CG) of Mexican pediatric patients without disabilities matched by age. The children in both groups came from families having children with anterior open bite and children without it. A parental questionnaire, dental study casts, and a speech test were used to measure the studied variables. Data were analyzed using the chi-square test (χ2 test), and one-way analyses of variance (ANOVA), followed by the Tukey post hoc test. Results: Prevalence of anterior open bite was 31.6% in the DG and 22.8% in the CG. The total speech errors by omissions, substitutions, distortions, and additions indicated that there were significant differences between both groups (F = 31.68, P < .001). In general, no significant difference in speech disorders was observed between the DG and the CG regardless of the presence of anterior open bite. Conclusions: No association existed between speech disorders and anterior open bite in the samples studied.

scholarly journals Facial Profile Shape, Malocclusion and Palatal Morphology in Malay Obstructive Sleep Apnea Patients

2010 ◽  
Vol 80 (1) ◽  
pp. 37-42 ◽  
Author(s):  
S. M. Banabilh ◽  
A. R. Samsudin ◽  
A. H. Suzina ◽  
Sidek Dinsuhaimi
Keyword(s):  
Obstructive Sleep Apnea ◽  
Null Hypothesis ◽  
Control Group ◽  
Class Ii Malocclusion ◽  
Chi Square ◽  
Facial Profile ◽  
Obstructive Sleep ◽  
Significant Difference ◽  
Chi Square Test ◽  
The Mean

Abstract Objective: To test the null hypothesis that there is no difference in facial profile shape, malocclusion class, or palatal morphology in Malay adults with and without obstructive sleep apnea (OSA). Materials and Methods: Subjects were 120 adult Malays aged 18 to 65 years (mean ± standard deviation [SD], 33.2 ± 13.31) divided into two groups of 60. Both groups underwent clinical examination and limited channel polysomnography (PSG). The mean OSA and control values were subjected to t-test and the chi square test. Results: Physical examination showed that 61.7% of the OSA patients were obese, and 41.7% of those obese patients had severe OSA. The mean body mass index (BMI) was significantly greater for the OSA group (33.2 kg/m2 ± 6.5) than for the control group (22.7 kg/m2 ± 3.5; P < .001). The mean neck size and systolic blood pressure were greater for the OSA group (43.6 cm ± 6.02; 129.1 mm Hg ± 17.55) than for the control group (35.6 cm ± 3.52; 114.1 mm Hg ± 13.67; P < .001). Clinical examination showed that the most frequent findings among OSA groups when compared with the control group were convex profiles (71.7%), Class II malocclusion (51.7%), and V palatal shape (53.3%), respectively; the chi square test revealed a significant difference in terms of facial profile and malocclusion class (P < .05), but no significant difference in palatal shape was found. Conclusion: The null hypothesis is rejected. A convex facial profile and Class II malocclusion were significantly more common in the OSA group. The V palatal shape was a frequent finding in the OSA group.

Resorbable Collagen Barrier Impeding the Extrusion of Obturating Material in Primary Molars Undergoing Resorption – A Randomized Clinical Trial

2021 ◽  
Vol 45 (5) ◽  
pp. 312-316
Author(s):  
Mishra Neha Sanjeev ◽  
Harsimran Kaur ◽  
Sandeep Singh Mayall ◽  
Rishika ◽  
Ramakrishna Yeluri
Keyword(s):  
Test Group ◽  
Primary Molars ◽  
Control Group ◽  
Chi Square ◽  
Significance Level ◽  
Significant Difference ◽  
Chi Square Test ◽  
Group A ◽  
Group B ◽  
And Control

Objective: To evaluate the effectiveness of placing a resorbable collagen barrier in impeding the extrusion of obturation material in primary molars undergoing resorption. Study design: All the 94 canals in 47 mandibular molars were allocated to 2 groups- Group ‘A’- 47 canals with collagen barrier (Test group) and Group ‘B’- 47 canals without collagen barrier (Control group) based on randomization protocol. Pulpectomy was performed and obturation of both test and control canals were radiographically assessed. Pearson’s chi – square test was applied to analyze the results. The significance level was predetermined at p < 0.05. Results: Among the test group, 93.6% of the canals showed no extrusion while, 6.4% showed visible extrusion of the material outside the apex. In the control group, 83% showed no extrusion whereas 17% of the canals showed visible extrusion outside the apex. But no significant difference was noted (p>0.05). Conclusion: The placement of resorbable collagen barrier in the apical third of the canal prevented the extrusion of obturating material beyond the apex in resorbing primary molars.

scholarly journals Ophthalmologic Manifestations and Retinal Findings in Children with Down Syndrome

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Adem Ugurlu ◽  
Emre Altinkurt
Keyword(s):  
Down Syndrome ◽  
Control Group ◽  
Healthy Children ◽  
Fiber Layer ◽  
Children With Down Syndrome ◽  
Department Of Ophthalmology ◽  
Significant Difference ◽  
Snellen Chart ◽  
Ophthalmologic Examination ◽  
Age Range

Purpose. To evaluate ocular findings in children with Down syndrome and to compare with the healthy children group. Methods. The study patients were divided into two groups as the diagnosed Down syndrome group and the control group. The study was designed as a prospective and single-center study in Istanbul University Faculty of Medicine Department of Ophthalmology. The study included 93 patients in the age range from 7 to 18 years, who applied to the ophthalmology department of our clinic in the period from July 2017 to June 2018. The study included the patients allocated into the control group and the Down syndrome patients allocated into the patient group, containing 49 and 44 participants, respectively. All patients underwent complete ophthalmologic examination with biomicroscopy. Autorefractometer measurements were performed in all patients, and the best corrected visual acuity (BCVA) was determined with the use of the Snellen chart. All patients underwent spectral domain optical coherence tomography (SD-OCT) measurements for central foveal retinal (CRT), subfoveal choroidal (CCT), and peripapillary retinal nerve fiber layer (pRNFL) thicknesses. Results. The average CRT was 241.2 ± 25.7 microns in Down syndrome group and 219.4 ± 21.1 microns in the control group. There was a statistically significant difference between the groups in regards to CRT (p<0.001). The average pRNFL values were 123.1 ± 15.4 microns in the Down syndrome group and 102.2 ± 8.7 microns in the control group (p<0.001). Conclusions. In the subjects with Down syndrome, the incidence of lens opacities, strabismus, and amblyopia was higher than the control group. CRT and pRNFL were thicker in the Down syndrome group than in control group. This may represent retinal developmental changes in the patients with Down syndrome.

Malocclusion: Social, Functional and Emotional Influence on Children

2012 ◽  
Vol 37 (1) ◽  
pp. 103-108 ◽  
Author(s):  
PA Martins-Júnior ◽  
LS Marques ◽  
ML Ramos-Jorge ML
Keyword(s):  
Quality Of Life ◽  
Negative Impact ◽  
Negative Influence ◽  
Open Bite ◽  
Anterior Open Bite ◽  
Chi Square ◽  
Exact Test ◽  
Chi Square Test ◽  
The Impact

Objectives: To determine the association between types of malocclusion and quality of life in children between 8-10 years of age and establish correlations between the severity of the malocclusion and particular bio-psychosocial variables. Study design: The sample was made up of 102 schoolchildren aged 8-10 years. Clinical exams were performed using the criteria of the Dental Aesthetic Index (DAI) to determine the presence and severity of malocclusions. The impact on quality of life was assessed using the Child Perceptions Questionnaire (CPQ8-10). Statistical analysis involved the chi-square test, Fisher's exact test and Spearman's correlation analysis. Results: Malocclusions affected 61% of the children examined. There was a positive correlation between total CPQ8-10 and DAI scores (P = 0.034). The following types of malocclusion had a significant effect on the quality of life of the children: upper anterior irregularity ≥ 2 mm, anterior open bite ≥ 2mm and diastema ≥ 2mm. Children with malocclusion experienced a greater negative impact on quality of life in comparison to those without malocclusion. Conclusions: Malocclusions had a negative influence over the quality of life of children between 8-10 years of age. More severe malocclusions had a greater impact with regard to social, emotional and functional aspects.

scholarly journals Randomized controlled trial on the effectiveness of silver diamine fluoride in arresting caries in Lagos, Nigeria

2021 ◽  
Vol 21 ◽  
pp. e226341
Author(s):  
Moses Okechukwu Azouru ◽  
Modupe Olufunmilayo Ashiwaju ◽  
Augustine Edomwonyi ◽  
Afolabi Oyapero ◽  
Bola Obisesan ◽  
...  
Keyword(s):  
Controlled Trial ◽  
Phase Iii ◽  
Treatment Modalities ◽  
Control Group ◽  
Chi Square ◽  
Silver Diamine Fluoride ◽  
Randomized Controlled ◽  
Significant Difference ◽  
Chi Square Test ◽  
The Mean

Treatment of dental caries in children still remains challenging due to lack of cooperation with conventional treatment modalities. Recently, the use of Silver Diamine Fluoride (SDF) has proved useful in addressing this challenge. Aim: This clinical trial aimed to evaluate the effectiveness of Silver Diamine Fluoride (SDF) in arresting caries in children in Lagos, Nigeria. Methods: This was a phase III balanced randomized controlled school based interventional study on 240 children. The study group was treated with SDF while GIC was used in the control group. Follow up visits in 2 weeks, 1 month, and 3 months were carried out to assess the treatment outcome. Inferential statistics with the use of Pearson Chi-square test and Independent Student t-test were used at 5% level of significance. Results: There was significant relationship between SDF and caries arrest in 2 weeks, 1 month and 3 months’ assessment period (p = 0.001). The control group showed continuous decline (71.7%, 54.3% and 50.9%) in restorative success from 2 weeks to 3 months respectively. The mean ± SD and Confidence Interval (CI) of arrested caries in the SDF group were 113± 1.24 and 113.1 – 113.5 respectively. In the control group the mean ± SD and CI of restorative success were 69.3±11.8 and 67.2 – 71.4. The effect size was 5.24. Conclusion: The result of the study showed that SDF was effective in arresting caries in children without any harm and there was statistically significant difference in the use of 38% SDF in arresting caries in children.

scholarly journals The Effect of Rhythmic Breathing on the Anxiety of Dressing Change in Burning Patients

2019 ◽  
Vol 8 (2) ◽  
pp. 95-100
Author(s):  
Mehry Bozorgnejad ◽  
Mohammad Reza Zarei ◽  
Leila Mamashli ◽  
Fatemeh Mohaddes Ardebili
Keyword(s):  
Modern Society ◽  
Control Group ◽  
Burn Patients ◽  
Friedman Test ◽  
Chi Square ◽  
Significant Difference ◽  
Before And After ◽  
Chi Square Test ◽  
Dressing Change ◽  
Experimental Group

Background: Burning is one of the worst accidents that people may now experience in modern society. One of the most critical problems of burn patients is the anxiety caused by medical treatments such as burn dressing. The present study aimed to determine the effect of rhythmic breathing on the anxiety of dressing change in burn patients. Materials and Methods: This experimental clinical trial was done on 60 burn hospitalized patients in Ayatollah Mousavi educational-therapeutic hospital of Zanjan province in 2017. The sampling was performed continuously and the samples were randomly assigned to control and experimental groups (30 subjects in each group). The data collection tool included a demographic questionnaire and numerical anxiety scale. First, the demographic characteristics questionnaire was completed by the samples. Then, the rhythmic breathing was taught to the experimental group for 20 minutes until complete learning, and they were asked to perform the rhythmic breathing during dressing. Before and after dressing, anxiety was evaluated in the experimental and control groups for 3 consecutive days. After collecting data and entering them into SPSS 20, data were analyzed using descriptive statistics, chi-square test, independent and dependent t test, and Friedman test. Results: Based on the findings of the study, both groups were homogeneous in terms of age, gender, education, percentage and the degree of burn, and there was no statistically significant difference. The results of the Friedman test showed that the anxiety severity had a statistically significant difference in both control and experimental groups before and after the intervention (P<0.001). However, the severity of anxiety after the intervention further reduced in the experimental group compared to the control group, and this reduction was statistically significant in the experimental group (P<0.001). Conclusion: In general, rhythmic breathing is effective in reducing anxiety caused by a dressing change in burn patients. Thus, this method can be used to decrease the anxiety of dressing.

scholarly journals A Comparative Study on the Effects of Acupressure at SP6 and ST36 Acupoints on the Pain Caused by Fistula Needle Placement in Hemodialysis Patients

2021 ◽  
Vol 10 (4) ◽  
pp. 354-367
Author(s):  
Tahereh Baloochi Beydokhti ◽  
Keyword(s):  
Arteriovenous Fistula ◽  
Hemodialysis Patients ◽  
Control Group ◽  
Needle Placement ◽  
Chi Square ◽  
Double Blind ◽  
Significant Difference ◽  
Chi Square Test ◽  
Vas Scores ◽  
And Control

Objective: Hemodialysis is one of the most common treatment methods in kidney patients. To do this, repeated insertion of the needle into the vessel is necessary. Patients treated with hemodialysis are exposed to stress and pain caused by perforation of their arteriovenous fistula about 300 times a year. More than 1/5 of hemodialysis patients express this pain as unbearable. This study aims to evaluate the effect of acupressure at SP6 and ST36 acupoints on the pain caused by fistula needle placement in hemodialysis patients. Methods: This study is a double-blind randomized clinical trial conducted in 2016 on 90 hemodialysis patients with arteriovenous fistula in Mashhad, Iran. They were randomly divided into three groups of SP6, ST36, and control. Data were collected after obtaining a written informed consent by a demographic form and the Visual Analog Scale (VAS). Data analysis was performed in SPSS v.16 software by using Kolmogorov-Smirnov test, Kruskal-Wallis test, one-way ANOVA, paired t-test, and Chi-square test. Results: There was a statistically significant difference between VAS scores after the intervention in all three group (P<0.001). The Mean±SD VAS scores before the intervention in SP6, ST36, control groups were 54.47±18.93, 51.5±22.83, 46.6±17.73, respectively which changed to 45.63±20.53, 40.2±20.01, and 51.87±19.05 after the intervention, indicating that acupressure at SP6 and ST36 acupoints reduced pain in patients, while the pain increased in the control group. Conclusion: Acupressure at SP6 and ST36 acupoints is an effective method in relieving pain caused by the insertion of a needle into the arteriovenous fistula in hemodialysis patients.

scholarly journals THE INFLUENCE OF ACE I/D GENE POLYMORPHISM IN AMATEUR AMERICAN FOOTBALL ATHLETES IN BRAZIL

2019 ◽  
Vol 25 (6) ◽  
pp. 460-463
Author(s):  
Gino Fellipe Santoro ◽  
Katlyn Duarte de Mello ◽  
Zair Cândido de Oliveira Netto ◽  
Gabrielle Pfutzenreuter ◽  
Julio Cesar Bassan ◽  
...  
Keyword(s):  
Diagnostic Test ◽  
American Football ◽  
Control Group ◽  
P Value ◽  
Genetic Profile ◽  
Chi Square ◽  
Level Of Evidence ◽  
Genotypic Distribution ◽  
Significant Difference ◽  
Chi Square Test

ABSTRACT Introduction Physical performance depends on a variety of biological and mechanical properties. These different phenotypes are related through the complex interaction between the environment and the individual genetic profile. The hypothesis is that there is a hereditary component that interferes in physical fitness. ACE stands out among the genes that may influence this response. Objectives The objective of this study is to analyze the polymorphism of the ACE gene in American football athletes. Methods: At the end of the study, the sample was composed of 45 male athletes and 72 non-athletes. DNA was extracted from the jugal mucosa. ACE polymorphisms were genotyped through polymerase chain reaction and analyzed using the electrophoresis process. To compare the frequency of genotypes between athletes and the control group, we used the Chi-square test. The association between the frequencies of alleles was verified through the 2X2 contingency tables analyzed using the Chi-square test with Yates correction. The type of study was diagnostic - Investigation of a diagnostic test, level of evidence II. A p-value of ≤0.05 was considered statistically significant for all the analyses. Results The results showed a greater frequency of the D allele in American football athletes when compared with non-athletes, and a significant difference in the genotypic distribution of the athletes being composed of a higher number of the DD genotype as compared to the control group. Conclusion The study provides evidence of the allelic and genotypic influence of ACE polymorphism in amateur American football players in Brazil. Level of evidence II; Investigation of a diagnostic test.

scholarly journals Three-dimensional ultrasound evaluation of tongue posture and its impact on articulation disorders in preschool children with anterior open bite

2018 ◽  
Vol 52 (3) ◽  
pp. 250-256
Author(s):  
Sanda Lah Kravanja ◽  
Irena Hocevar-Boltezar ◽  
Maja Marolt Music ◽  
Ana Jarc ◽  
Ivan Verdenik ◽  
...  
Keyword(s):  
Preschool Children ◽  
Clinical Assessment ◽  
Three Dimensional ◽  
Open Bite ◽  
Control Group ◽  
Odds Ratios ◽  
Functional Diagnostics ◽  
Anterior Open Bite ◽  
Significant Difference ◽  
Articulation Disorders

Abstract Background Tongue posture plays an important role in the etiology of anterior open bite (AOB) and articulation disorders, and is crucial for AOB treatment planning and posttreatment stability. Clinical assessment of tongue posture in children is unreliable due to anatomical limitations. The aim of the study was to present functional diagnostics using three-dimensional ultrasound (3DUS) assessment of resting tongue posture in comparison to clinical assessment, and the associations between the improper tongue posture, otorhinolaryngological characteristics, and articulation disorders in preschool children with AOB. Patients and methods A cross-sectional study included 446 children, aged 3–7 years, 236 boys and 210 girls, examined by an orthodontist to detect the prevalence of AOB. The AOB was present in 32 children. The control group consisted of 43 children randomly selected from the participants with normocclusion. An orthodontist, an ear, nose and throat (ENT) specialist and a speech therapist assessed orofacial and ENT conditions, oral habits, and articulation disorders in the AOB group and control group. Tongue posture was also assessed by an experienced radiologist, using 3DUS. The 3DUS assessment of tongue posture was compared to the clinical assessment of orthodontist and ENT specialist. Results The prevalence of AOB was 7.2%. The AOB group and the control group significantly differed regarding improper tongue posture (p < 0.001), and articulation disorders (p < 0.001). In children without articulation disorders from both groups, the improper tongue posture occured less frequently than in children with articulation disorders (p < 0.001). After age adjustment, a statistical regression model showed that the children with the improper tongue posture had higher odds ratios for the presence of AOB (OR 14.63; p < 0.001) than the others. When articulation disorders were included in the model, these odds ratios for the AOB became insignificant (p = 0.177). There was a strong association between the improper tongue posture and articulation disorders (p = 0.002). The 3DUS detected the highest number of children with improper resting tongue posture, though there was no significant difference between the 3DUS and clinical assessments done by orthodontist and ENT specialist. Conclusions The 3DUS has proved to be an objective, non-invasive, radiation free method for the assessment of tongue posture and could become an important tool in functional diagnostics and early rehabilitation in preschool children with speech irregularities and irregular tongue posture and malocclusion in order to enable optimal conditions for articulation development.

135 SHORT-TERM CRYOPRESERVATION OF VITRIFIED MOUSE MORULAE AT - 79°C

2007 ◽  
Vol 19 (1) ◽  
pp. 185
Author(s):  
Y. Takagi ◽  
M. Shimizu ◽  
M. Morimura ◽  
S. Yokomizo ◽  
K. Hara ◽  
...  
Keyword(s):  
Liquid Nitrogen ◽  
Blastocyst Stage ◽  
Control Group ◽  
Embryo Viability ◽  
Chi Square ◽  
Significant Difference ◽  
Morula Stage ◽  
Chi Square Test ◽  
Student’S T

Embryos of various species are successfully vitrified and cryopreserved in liquid nitrogen (&lt;−150°C). Like the preservation of frozen somatic cells cooled by dry ice (−79°C), the cryopreservation of embryos at −79°C is useful for a reduction in the shipping costs. The purpose of this study was to evaluate the effect of the cryopreservation period at −79°C on the in vitro embryo viability of vitrified mouse morulae after thawing. Morula-stage mouse embryos were collected from superovulated ICR donors 70 h after hCG injection. The embryos were exposed first to 5% DMSO + 5% ethylene glycol (EG) in Dulbecco's PBS + 20% FCS (mPBS) for 2 min, and then equilibrated for 20–30 s in a vitrification solution composed of 10% DMSO + 10% EG + 0.6 M sucrose in mPBS. The embryos were loaded onto cryoloops (Lane et al. 1999 Nat. Biotech. 17, 1234–1236) and plunged directly into liquid nitrogen. The cryoloops were placed in 1.2-mL cryotubes and stored in a −79°C freezer for 1–7 days. The embryos were warmed by passing through 4 dilution media and rinsed with mWM culture medium. They were then cultured at 37°C in 5% CO2 for 44 h. Non-cryopreserved embryos and embryos cryopreserved in liquid nitrogen served as controls. Data were analyzed by the chi-square test and the Student's t-test. Results are shown in Table 1. There was no significant difference (P &gt; 0.01) in the developmental abilities to the blastocyst stage of the vitrified embryos that were cryopreserved at −79°C for 1 day, 3 days, and 5 days, the embryos cryopreserved in liquid nitrogen, and the non-vitrified control. The blastocyst rate of embryos was significantly lower (P &lt; 0.01) for the Day 7 group than for the control group. The cell numbers of blastocysts were significantly lower (P &lt; 0.01) for the Day 1, Day 3, Day 5, and Day 7 groups than for the control group. This study suggests that vitrified mouse morulae can be successfully cryopreserved at −79°C for 5 days. Table 1. Effect of the cryopreservation period on the viability of vitrified mouse morulae preserved at −79°C

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