scholarly journals Root Dimensions in Patients with Mild Hypodontia and a Control Group

2019 ◽  
Vol 13 (04) ◽  
pp. 574-580
Author(s):  
Khaled Khalaf ◽  
Zahra Seraj ◽  
Hesham Hussein ◽  
Mahmoud Mando
Keyword(s):  
Matched Control ◽  
Permanent Teeth ◽  
Cervical Region ◽  
Control Group ◽  
Third Molars ◽  
Control Groups ◽  
Implant Placement ◽  
Dental Hospital ◽  
The University ◽  
And Control

Abstract Objectives The aim of this study was to compare root dimensions (length and mesiodistal widths) between subjects with mild hypodontia and an age- and sex-matched control group. Materials and Methods Root dimension measurements of all permanent teeth excluding third molars were made on standardly taken orthopantomograms of 50 individuals (25 hypodontia and 25 controls) attending the University of Sharjah Dental Hospital. The length and two mesiodistal widths were measured for each fully formed root. The length of the root was measured digitally by drawing a line from the midpoint and bisecting the mesiodistal cemento-enamel junction (CEJ) of the tooth and extended to its apex. The mesiodistal widths of each root were measured at the cervical region and at half way of and perpendicular to the length of the root. Statistical Analysis Two sample t-tests were used to compare root dimension measurements between the hypodontia and control groups. Results There were no significant differences between genders with regard to root length or widths measurements, and therefore genders were combined for further analysis. Patients with hypodontia have significantly shorter root lengths than controls for the upper central incisors, upper canines, first premolars, and lower first molars (p < 0.05). Similarly, root width at the midpoint of the root was found to be less in hypodontia group than that in controls for the upper central incisors, lower first premolars, upper first molars, and all second premolars (p < 0.05). Similar pattern of differences was found with regard to the root width at the cervical region (p < 0.05). Conclusions Patients with hypodontia have shorter and narrower roots of the whole permanent dentition except the upper lateral incisors, lower incisors, lower canines, and all second molars when compared with controls. In effect, this may affect the orthodontic treatment planning and implant placement.

scholarly journals Effect of iRoot BP Plus Pulpotomy for Immediate Repair in Children with Young Permanent Teeth Crown Fracture

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Jiaying Song
Keyword(s):  
Success Rate ◽  
Clinical Effect ◽  
Permanent Teeth ◽  
Control Group ◽  
Observation Group ◽  
Control Groups ◽  
Before And After ◽  
Random Number Table ◽  
The Difference ◽  
And Control

Objective: To explore the clinical effect of iRoot BP Plus pulpotomy for immediate repair in children with young permanent teeth crown fracture. Methods: From September 2017 to October 2018, 80 children (80 affected teeth) with young permanent teeth crown fracture who treated in the hospital were selected as the research objects. Random number table method was used to divide them into observation and control groups with each group of forty patients (40 affected teeth). The children in the control group were treated with calcium hydroxide resin, while the observation group were treated with iRoot BP Plus for immediate repair. The surgical success rate was compared between the two groups, and the pulp vitality before and after treatment were compared. Results: At 3 months and 6 months after surgery, the success rate of children in the observation group was higher than that in the control group, and the difference was statistically significant (P<0.05). The percentage of children with negative pulp activity in the observation group was higher than that in the control group, and the difference was statistically significant (P<0.05). Conclusion: Immediate repair with iRoot BP Plus pulpotomy in children with young permanent teeth crown fracture has significant clinical effect.

Values and Volunteers: Axiology of Altruism in a Crisis Center

1980 ◽  
Vol 47 (3) ◽  
pp. 1007-1012 ◽  
Author(s):  
John Mahoney ◽  
Constance M. Pechura
Keyword(s):  
Crisis Intervention ◽  
Matched Control ◽  
Social Activity ◽  
Control Group ◽  
Telephone Service ◽  
Control Groups ◽  
Value Differences ◽  
Rokeach Value Survey ◽  
Regional University ◽  
And Control

The present study examined the values of volunteers for a crisis center “hotline” telephone service. The volunteers (19 males, 23 females) were compared to an aggregately sex-matched control group of 42 evening college students at a major urban regional university. Both groups completed a Rokeach Value Survey. A total of 12 values discriminated between the volunteer and control groups. Results suggest that, in contrast to control subjects, volunteers for crisis-intervention centers are demonstrably more altruistic, with more highly developed interests in social activity and an increased need for inner-direction. A subsequent value comparison of the 23 volunteers who remained for at least 2 mo. beyond the training period with 19 who dropped out disclosed only 2 minor differences. Value differences appear to be critical in volunteer selection but are generally unrelated to retention.

scholarly journals Frequency of Thyroid Nodules among Patients with Colonic Polyps

2012 ◽  
Vol 2012 ◽  
pp. 1-3
Author(s):  
Cevdet Duran ◽  
Huseyin Savas Gokturk ◽  
Mustafa Kulaksizoglu ◽  
Suleyman Bakdik ◽  
Gulhan Kanat Unler ◽  
...  
Keyword(s):  
Thyroid Nodule ◽  
Thyroid Nodules ◽  
Matched Control ◽  
Colonic Polyps ◽  
Control Group ◽  
Hyperplastic Polyps ◽  
Control Groups ◽  
Female Ratio ◽  
Male Female Ratio ◽  
And Control

Aim. Colonic polyps and thyroid nodules are common diseases and their frequency increases with age. In the literature, there is no study investigating the coexistence of colonic polyps and thyroid nodules. Therefore, this study was designed to investigate thyroid nodule prevalence in patients with colonic polyps.Material and Methods. Sixty-six patients with colonic polyps and 146 patients without colonic polyps enrolled into the study. Age and sex matched control group was composed from patients without colonic polyps. Colonoscopic examinations, thyroid ultrasonographies were performed in all patients, and TSH were measured.Results. Male/female ratio in polyp and control groups were 40/26 versus 68/78, respectively (P=0.058). Mean ages were similar in both groups (53.3±11.4versus,51.8±11.4,P=0.373). Thyroid nodule was detected in 44 (66.7%) patients with polyps and in 61 (41.8%) controls (P=0.001). Patients with adenomatous polyps had 5 or more thyroid nodules compared to patients with hyperplastic polyps (P=0.03). Thyroid nodules were more prevalent among patients aged 50 or older compared to 50 years or less (P=0.023).Conclusion. Thyroid nodules were detected more common in patients with colonic polyps. Further studies are needed to clarify this coexistence.

scholarly journals Third molar tooth agenesis and pattern of impaction in patients with palatally displaced canines

2018 ◽  
Vol 89 (1) ◽  
pp. 64-70
Author(s):  
Elham S. Abu Alhaija ◽  
Fedaa T. Wazwaz
Keyword(s):  
Third Molar ◽  
Control Group ◽  
Tooth Agenesis ◽  
Third Molars ◽  
Missing Teeth ◽  
Control Groups ◽  
Third Molar Agenesis ◽  
High Prevalence ◽  
The Difference ◽  
And Control

ABSTRACT Objectives: To investigate the association between third molar agenesis and pattern of impaction, missing teeth, and peg-shaped lateral incisor with palatal canine displacement (PDC). Materials and Methods: The pretreatment orthodontic orthopantomograms of 438 patients (122 males and 316 females) diagnosed with PDC were included. A total of 338 patients with normally erupted canines who had a preexisting radiograph as part of their orthodontic treatment (125 males and 313 females) served as controls. Orthopantomograms were evaluated for missing third molars, third molar eruption status, and type of impaction, third molar spaces, third molar width, and angulation. Results: In the PDC group, at least one third molar was missing in 48% and 19% in the upper and lower arches, respectively. Also, 38% and 67% of PDC patients had at least one third molar impaction in the upper and lower arches, respectively. The difference between the PDC and control groups was significant for both missing and impacted third molars (P &lt; .001 for each). The most common type of third molar impaction in the upper arch was vertical and distoangular in the PDC and control groups, respectively. Upper and lower third molar width and spaces were reduced in PDC patients when compared with the control group (P &lt; .001). In PDC patients, missing teeth and peg-shaped lateral incisors were recorded in 5.6% and 9.1%, respectively. Conclusions: PDC patients showed a high prevalence of third molar agenesis and impaction. Upper and lower third molar width and space were reduced in the PDC patients. There were no significant associations between tooth agenesis (other than third molars) and the PDC anomaly.

Liver Polyploidy in Alzheimer's Disease

1987 ◽  
Vol 6 (4) ◽  
pp. 264-270
Author(s):  
M. Fisman ◽  
M.I. Laskey ◽  
H.E. Enesco
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Matched Control ◽  
Great Variability ◽  
Lower Percentage ◽  
Control Group ◽  
Control Groups ◽  
Matched Control Group ◽  
Ploidy Class ◽  
And Control

ABSTRACTThe amount of liver polyploidy in a group of patients with Alzheimer's disease (AD) was compared with that of an age-matched control group. There was great variability in the percentage of cells in each ploidy class from one individual to the next in both control and AD subjects. AD patients had a lower percentage of 2N cells, and a higher percentage of 4N cells than the controls. There was no difference in the percentage of 8N or 16N cells in AD, indicating that there was no shift to higher ploidy classes in AD. The most stringent statistical analysis failed to reveal statistically significant differences between the AD and control groups.

scholarly journals Assessment of Platelet Indices Profile of Pregnant Women Attending University of Abuja Teaching Hospital, Nigeria

2021 ◽  
Vol 3 (2) ◽  
pp. 99-108
Author(s):  
Amos Dangana ◽  
Anthony Uchenna Emeribe ◽  
Hezekiah Alkali Isah ◽  
Sanusi Musa ◽  
Joel Monday Abu ◽  
...  
Keyword(s):  
Platelet Count ◽  
Pregnant Women ◽  
Teaching Hospital ◽  
Control Group ◽  
Control Groups ◽  
Distribution Width ◽  
Significant Difference ◽  
Endothelial Integrity ◽  
The University ◽  
And Control

Platelets initiate hemostasis by aggregating at the site of injury and participate in ensuring endothelial integrity. A defect in this process could lead to intravascular blood loss. This case-control study sought to determine the platelet counts and indices among pregnant women in the University of Abuja Teaching Hospital Gwagwalada, Abuja, Nigeria. A total of 120 pregnant women as case and 60 non-pregnant women as control were enrolled for this study. Blood samples were collected in EDTA tubes, and complete platelet count and indices were carried out using an automated five-part haematology analyzer. The mean ± standard deviation of the platelets count among the pregnant women, 226.54 ± 69.76 109 cells/L was not significantly different from that of the non-pregnant women, 214.95 ± 52.22x 109 cells/L (p=0.295). There was a significant differences in mean platelets volume (MPV) of the case and control groups (p=0.036). After post-hoc test, the significant difference was between the  pregnant women in 3rd trimester and the control group (p=0.014). However, there was no diffences in the mena platelets larger cell ratio and platelet distribution width in the case and control groups. Fifteen (11.0%) and 7 (12.1%) of the case and control control groups, respectively had mild thrombocytopenia. However, there was no significant association between pregnant status and thrombocytopenia (p=0.836). Based on these findngs, it can be infered that platelet count and MPV decreases while PDW increase with the progression of gestation age compared to the non-pregnant women.

Conjugated Linoleic Acid Causes a Marked Increase in Liver α-Tocopherol and Liver α-Tocopherol Transfer Protein in C57BL/6 J Mice

2010 ◽  
Vol 80 (1) ◽  
pp. 65-73 ◽  
Author(s):  
Pei-Min Chao ◽  
Wan-Hsuan Chen ◽  
Chun-Huei Liao ◽  
Huey-Mei Shaw
Keyword(s):  
Antioxidant Enzymes ◽  
Linoleic Acid ◽  
Conjugated Linoleic Acid ◽  
Thiobarbituric Acid ◽  
Control Group ◽  
Thiobarbituric Acid Reactive Substances ◽  
Control Groups ◽  
Protein Levels ◽  
Transfer Protein ◽  
And Control

Conjugated linoleic acid (CLA) is a collective term for the positional and geometric isomers of a conjugated diene of linoleic acid (C18:2, n-6). The aims of the present study were to evaluate whether levels of hepatic α-tocopherol, α-tocopherol transfer protein (α-TTP), and antioxidant enzymes in mice were affected by a CLA-supplemented diet. C57BL/6 J mice were divided into the CLA and control groups, which were fed, respectively, a 5 % fat diet with or without 1 g/100 g of CLA (1:1 mixture of cis-9, trans-11 and trans-10, cis-12) for four weeks. α-Tocopherol levels in plasma and liver were significantly higher in the CLA group than in the control group. Liver α-TTP levels were also significantly increased in the CLA group, the α-TTP/β-actin ratio being 2.5-fold higher than that in control mice (p<0.01). Thiobarbituric acid-reactive substances were significantly decreased in the CLA group (p<0.01). There were no significant differences between the two groups in levels of three antioxidant enzymes (superoxide dismutase, glutathione peroxidase, and catalase). The accumulation of liver α-tocopherol seen with the CLA diet can be attributed to the antioxidant potential of CLA and the ability of α-TTP induction. The lack of changes in antioxidant enzyme protein levels and the reduced lipid peroxidation in the liver of CLA mice are due to α-tocopherol accumulation.

Sri Lankan Cleft Lip and Palate Study Model Analysis: Clefts of the Secondary Palate

1993 ◽  
Vol 30 (2) ◽  
pp. 227-230 ◽  
Author(s):  
Andrew Mccance ◽  
David Roberts-Harry ◽  
Martyn Sherriff ◽  
Michael Mars ◽  
William J.B. Houston
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Model Analysis ◽  
Control Group ◽  
Tooth Size ◽  
Sri Lankan ◽  
Control Groups ◽  
Secondary Palate ◽  
Comparable Control ◽  
And Control

The study models of a group of adult Sri Lankan patients with clefts of the secondary palate were investigated. Tooth-size and arch-dimension comparisons were made with a comparable control group. Significant differences were found between the cleft and control groups in tooth sizes, chord lengths, and arch widths. The cleft group dimensions were generally smaller than those of the control group. Overjets were larger in the cleft group.

THE EFFECT OF APPLYING ANIMAL CARTOON PICTURES ON STUDENTS’ ACHIEVEMENT IN WRITING NARRATIVE TEXT

2017 ◽  
Vol 6 (1) ◽  
Author(s):  
Hasanul Arifin Zul And Masitowarni Siregar
Keyword(s):  
T Test ◽  
Narrative Text ◽  
Control Group ◽  
First Year ◽  
Writing Achievement ◽  
Control Groups ◽  
Post Test ◽  
Written Test ◽  
And Control ◽  
Experimental Group

This thesis is focused on the investigation of the effect of applying animal cartoon pictures on students’ achievement in writing narrative text. This study aims to find whether applying animal cartoon pictures significantly affect the students’ writing achievement or not. The data in this study were obtained by administering a written test. The population was the 2015/2016 first year (grade XI) of SMA Swasta Nusantara Lubuk Pakam and 66 students were taken as the sample by using random sampling. The sample was divided into two groups, experimental and control groups. The experimental group was taught by applying animal cartoon pictures while the control group without animal cartoon pictures (x = lecturing). The data were taken the scores from the pre-test and post-test to both experimental and control groups. These data were analyzed by using t-test. The result of computing the t-test obviously showed that t-observed is higher than t-table (5.21 >1,67) with the degree of freedom 64 (df =N-2) at the level significance 0,05 one tail test. It showed that the application of animal cartoon pictures significantly affected the students of SMA Swasta Nusantara Lubuk Pakam achievement in writing narrative text.

THE EFFECT OF APPLYING DEMONSTRATION METHOD ON STUDENTS’ ACHIEVEMENT IN SPEAKING SKILL AT THE THIRD GRADE OF SMK PAB 3 MEDAN ESTATE

2015 ◽  
Vol 4 (2) ◽  
Author(s):  
Meryanti Napitupulu And Anni Holila Pulungan
Keyword(s):  
High School ◽  
Control Group ◽  
Vocational High School ◽  
Control Groups ◽  
Speaking Test ◽  
The Third ◽  
Speaking Skill ◽  
The Subject ◽  
And Control ◽  
Experimental Group

This study was conducted as an attempt to discover the effect of applying Demonstration Method on students’ achievement in speaking skill. It was an experimental research. The subject was students of Grade XII, Vocational High School (Sekolah Menengah Kejuruan: SMK), which consisted of 79 students. The research was divided into two groups: experimental and control groups. The instrument used to collect the data was speaking test. To obtain the reliability of the test, the writer applied Kuder Richardson 21 formula. The result of the reliability was 0.7, and it was found that the test was reliable. The data were analyzed by using t-test formula. The analysis showed that the scores of the students in the experimental group were significantly higher than the scores of the students in the control group at the level of significant m = 0.05 with the degree of freedom (df) 77, t-observed value 8.9 > t-table value 1.99. The findings indicate that using Demonstration Method significantly affected the students’ achievement in speaking skill. So, English teachers are suggested to use Demonstration Method in order to improve students’ achievement in speaking skill.

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