scholarly journals Mini-implant and Nance button for initial retraction of maxillary canines: a prospective study in cast models

2012 ◽  
Vol 17 (4) ◽  
pp. 134-139 ◽  
Author(s):  
Flávia de Moraes Arantes ◽  
Juliana Kina ◽  
Matheus José Bueno Gonçalves ◽  
Júlio de Araújo Gurgel ◽  
Omar Gabriel da Silva Filho ◽  
...  

OBJECTIVE: Bone anchorage is a key factor for the successful management of some malocclusions for it allows the application of continuous forces, decreases treatment time and is independent from patient compliance. METHODS: The goal of this work was to establish a dental model comparison in order to measure the anchorage loss after the initial retraction of upper canines between the two groups. Group A used mini-implants and Group B used Nance button. All patients had two models cast (M1 and M2). The first models were taken on baseline (M1) and the other models were taken after canine retraction (M2). RESULTS: All measurements were pooled and submitted to statistical analysis. In order to verify the inter-examiner systematic error a paired t-test was performed. Dahlberg's formula was used to estimate the casual error. For comparison purposes between Before and After stages, a paired t-test was done. For the comparison between mini-implant and Nance button groups, a Student t-test was applied. All tests adopted a 5% (p<0.05) significance level. CONCLUSION: No statistically significant difference was observed between the two groups when measurements and comparisons to assess molar anchorage loss after canine initial retraction were performed. Two different anchorage systems were applied on dental models (mini-implants and Nance's button) for each group.

2020 ◽  
Vol 5 (2) ◽  
pp. 114-121
Author(s):  
Jeff Agung Perdana ◽  
Yudo Harvianto

Cardiorespiratory endurance in sports is very important. Because cardiorespiration is closely related to human activities doing work and moving. This research is motivated by cardiorespiratory fitness which is closely related to human activities doing work and moving and exercising. This study aims to determine the differences in cardiorespiration endurance among students who take extracurricular volleyball and basketball. This study uses a comparative research design with the test method. The subjects of this study were 19 basketball basketball extracurricular students and 20 volleyball extracurricular students. Data collection techniques in this study used a measurement test. The instrument used in this study was a multistage fitness test. The analysis technique used is the t-test (Paired t-Test). The results of statistical analysis showed that there was a significant difference between cardiorespiration endurance between students who took extracurricular volleyball and basketball with male students t count = 3.354 greater than t (0.05) (9) = 2.36 and female students that t arithmetic = 3.053 is greater than t (0.05) (8) = 2.31 at a significance level of 5%. The difference in cardiorespiration endurance between students who take extracurricular volleyball and basketball is male students by 13.31% and female students 18.64%.Keywords: Basketball, volleyball, cardiorespiration, Sport, Student AbstrakKetahanan kardiorespirasi dalam berolahraga sangatlah penting. Sebab kardiorespirasi erat kaitannya dengan kegiatan manusia melakukan pekerjaan dan bergerak. Penelitian ini dilatarbelakangi oleh kebugaran kardiorespirasi yang erat kaitannya dengan kegiatan manusia melakukan pekerjaan dan bergerak serta berolahraga. Penelitian ini bertujuan untuk mengetahui perbedaaan daya tahan kardiorespirasi antara  peserta didik yang mengikuti ekstrakutikuler bolavoli dan bolabasket. Penelitian ini menggunakan desain penelitian kompratif dengan metode tes. Subjek penelitian ini adalah 19 siswa ekstrakurikuler bolabasket dan 20 siswa ekstrakurikuler bola voli.  Teknik pengambilan data dalam penelitian ini menggunakan tes pengukuran. Instrumen yang digunakan dalam penelitian ini adalah multistage fitness test. Teknik analisis yang digunakan yaitu uji-t ( Paired t-Test ). Hasil analisis statistika diperoleh hasil bahwa ada perbedaan yang signifikan antara daya tahan kardiorespirasi antara  peserta didik yang mengikuti ekstrakutikuler bolavoli dan bolabasket dengan siswa putra t hitung = 3,354 lebih besar dari t(0,05)(9)  = 2,36 dan siswa putri bahwa t hitung = 3,053 lebih besar dari t(0,05)(8)  = 2,31 pada taraf signifikansi 5%. Perbedaan daya tahan kardiorespirasi antara peserta didik yang mengikuti ekstrakutikuler bolavoli dan bolabasket adalah siswa putra sebesar 13,31% dan siswa putri 18,64%.Kata kunci: Bola basket, bola voli, kardiorespirasi, olahraga, siswa


2021 ◽  
Vol 9 (D) ◽  
pp. 113-119
Author(s):  
Tarek Farag ◽  
Wael Mohamed Mubarak Refai ◽  
Ahmed Nasef ◽  
Omnia A. Elhiny ◽  
Ahmed Sh. Hashem

AIM: The aim of the study was to investigate the effectiveness of using micro-osteoperforations (MOPs) or piezocision in accelerating tooth movement, during canine retraction, compared to standard canine retraction. PATIENTS AND METHODS: A split-mouth study design was carried out with two Groups A and B. Each group contained 10 patients; in each patient, one side was used as a control side and the contralateral side received either MOPs (Group A) or piezocision (Group B). The assessment data were collected by direct intraoral measurements, every 2 weeks, over a 3 months retraction period. RESULTS: Independent t-test, paired t-test, and ANOVA were used to analyze the results. In Group A, there was a statistically significant difference between the study and control sides (p < 0.001) with a total of 4.2 ± 0.5 mm canine retraction in the MOPs assisted canine retraction side versus a 2.8 ± 0.2 mm total canine retraction in the control side. For Group B, there was a statistically significant difference between the study and control sides (p < 0.001) with a total of 3.6 ± 0.4 mm canine retraction in the piezocision-assisted canine retraction side versus a 2.8 ± 0.2 mm total canine retraction in the control. CONCLUSION: MOPs and piezocision techniques accelerated the rate of canine retraction during orthodontic treatment, with the MOPs being slightly more effective.


2018 ◽  
Vol 2 (1) ◽  
pp. 38
Author(s):  
Eko Hendri Susilo ◽  
Sholihatul Maghfirah ◽  
Dian Laila Purwaningroom

AbstractCounseling is done to improve the knowledge of respondents. Counseling using video media has a real picture and liked the target. This study aims to determine the effectiveness of counseling using video and images of free sex knowledge in adolescents. The research method used quasi experimental design with Pretest-posttest control design design in this study there are two groups selected by simple random sampling. The population in this study is students of class XI In Vocational High School 1 Nawangan country Nawangan which amounted to 178 person. The overall sample in this study were 54 respondents, for each treatment group 27 respondents. The data were processed using computter program with paired T-Test to see the significance difference between pretest-postest of each counseling medium and Independent T-test to see the effectiveness between video and image media, significance level (p) ≤ 0.05. The result of the research shows the counseling using video media with the highest value of pretest 75, average 60,65. Posttest the highest value of 100 averages 81.02. Counseling using image media pretest value score highest score 87,5 on average 60,19. While the highest posttest value of 93.75 averaged 70.14. Pursuant to result of independent T-test obtained p value = 0,005, which mean p value smaller than α = 0,05. So there is a significant difference between video and image media extension.The conclusion of this research is counseling using video media more effective than image media in increasing free sex knowledge in adolescent. It is expected to increase the knowledge of free sex in adolescent In Vocational High School 1 Nawangan country Nawangan institutions using video as a media counseling.Keywords: Video, image, knowledge, free sex, adolescents.AbstrakPenyuluhan dilakukan untuk meningkatkan pengetahuan responden. Penyuluhan menggunakan media video mempunyai gambaran yang nyata dan disukai sasaran. Penelitian ini bertujuan untuk mengetahui efektifitas penyuluhan menggunakan video dan gambar terhadap pengetahuan seks bebas pada remaja. Metode penelitian menggunakan rancangan quasi eksperimen dengan desain Pretest-postest control design dalam penelitian ini terdapat dua kelompok yang dipilih secara simplem random sampling. Populasi pada penelitian ini siswa siswi kelas XI SMK N 1 Nawangan yang berjumlah 178 orang. Sampel keseluruhan pada penelitian ini 54 responden, untuk setiap kelompok perlakuan 27 responden. Data diolah menggunakan Program komputer dengan uji paired T-Test untuk melihat perbedaan signifikas antara pretest-postest masing-masing media penyuluhan dan Independent T-test untuk melihat efektifitas antara media video dan gambar, tingkat kemaknaan (p) ≤ 0,05. Hasil penelitian menunjukan penyuluhan menggunakan media video iilai tertinggi pretest 75, rata-rata 60,65. Posttest nilai tertinggi 100 rata-rata 81,02. Penyuluhan menggunakan media gambar nilai pretest skor nilai tertinggi 87,5 rata-rata 60,19. Sedangkan posttest nilai tertinggi 93,75 rata-rata 70,14. Berdasarkan hasil uji T-test Independen diperoleh nilai p=0,005, yang berarti nilai p lebih kecil dari α=0,05. Sehingga Terdapat perbedaan yang signifikan yang antara penyuluhan media video dan gambar. Kesimpulan dari penelitian ini adalah penyuluhan menggunakan media video lebih efektif daripada media gambar dalam meningkatkan pengetahuan seks bebas pada remaja. Diharapkan untuk meningkatkan pengetahuan seks bebas pada remaja instansi SMK N Nawangan menggunakan video sebagai media penyuluhan.Kata kunci: Video, gambar, pengetahuan,seks bebas, remaja.


2018 ◽  
Vol 7 (4) ◽  
pp. 42-49 ◽  
Author(s):  
Korkmaz YİĞİTER ◽  
Hakan TOSUN

The aim of this study is to investigate the effects of participation in a 1-week summer camp on thehopelessness and self-esteem of the university students attending Sport Sciences Faculty. Participants were 36university students assigned to experiment group using a random procedure. Coopersmith Self-esteem and Beck Hopelessness Scales were completed at the beginning and end of the summer camp by designed the university. The obtained data were analysed in the SPSS 18.0 program and the significance level was taken as 0.05. The descriptive statistics, independent simple t test, paired simple t test and Pearson correlation were used for analyse the data in the study. According to the results of the research, no significant difference was observed in the comparison of the hopelessness and self-esteem levels between pre and post-test. In addition, there was a significant difference in the hopelessness level of male and female students but any significant difference was not observed in terms of self-esteem. There was a significant relationship between hopelessness and self-esteem pre and post-test. These result shows that a 1-week summer camp cannot change the hopelessness or self-esteem level. However, as the self-esteem rises, the rate of despair decreases whereas as the despair rises, the selfesteem decreases.


Author(s):  
Adeleh Sadeghloo ◽  
Parna Shamsaee ◽  
Elham Hesari ◽  
Golbanhar Akhondzadeh ◽  
Hamid Hojjati

Abstract Introduction Thalassemia, as the most common chronic hereditary blood disorder in humans, can impose many adverse effects on parents and their affected children. On the other hand, positive thinking is the method or the result of a positive focus on a constructive issue, so by teaching positive thinking, we can improve physical and social function, and promote emotional health and overall quality of life. The aim of this study was to determine the effect of positive thinking training on the quality of life of parents of adolescents with thalassemia. Methods This quasi-experimental study was performed on 52 parents of adolescents with thalassemia who attended Taleghani Hospital in Golestan province, Iran in 2017. Samples were randomly assigned into two groups of intervention and control. The positive thinking training (based on the theory of Martin Seligman) was carried out in the intervention group in 10 (45–60 min) sessions over a 5-week period. Data collection tools in this study were the World Health Organization (WHO) quality of life questionnaire (WHOQOL-BREF) and a demographic information questionnaire. Data were analyzed by SPSS-16 software using independent t-test, the paired t-test and a covariance test. Results The results of paired t-test showed a significant difference in the score of quality of life in intervention group before and after the intervention (p < 0.001). However, this test did not show any significant difference in the control group (p = 0.11). The covariance test, after removing the pre-test score, showed a significant difference between the intervention and control groups in terms of the score of quality of life, so that 13% of the changes after the intervention were due to the intervention (p = 0.009, η = 0.13). Conclusion The positive thinking training increased the quality of life of parents of adolescents with thalassemia. Therefore, using this program can be an effective way of improving the quality of life of parents. Thus, positive thinking training is suggested to be used as an effective strategy for increasing the quality of life of parents with ill children.


2021 ◽  
Vol 45 (5) ◽  
pp. 312-316
Author(s):  
Mishra Neha Sanjeev ◽  
Harsimran Kaur ◽  
Sandeep Singh Mayall ◽  
Rishika ◽  
Ramakrishna Yeluri

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 &lt; 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&gt;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.


Author(s):  
Pooja A Mulchandani ◽  
Trupti Warude ◽  
Amrutkuvar Pawar

Objectives: To compare the effect of gluteal muscle strengthening along with conventional exercises versus conventional exercises alone on flat foot.Method: An experimental study conducted at Physiotherapy Department of Krishna Institute of Medical Sciences, Karad. A total of 52 subjects were equally divided into two groups using convenient sampling with random allocation (Groups A and B). Baseline treatment was given to both groups (intrinsic muscle strengthening). Group A was given intrinsic muscle strengthening alone while Group B was given gluteal muscle strengthening along with intrinsic muscle strengthening.Result: Statistical analysis was performed using paired t-test and unpaired t-test. In pre-intervention there was no statistically significant difference seen with p values for the navicular drop was 0.3563 and for Ink test was 0.7342. While on comparing the post-interventional values, the results between the two groups using paired t-test revealed that there was extremely significant difference seen with p-value for the navicular drop was <0.0001 and for Ink test was <0.0001.Conclusion: From the study, it can be concluded that there was a significant effect of gluteal muscle strengthening on the flat foot.


2012 ◽  
Vol 83 (2) ◽  
pp. 280-285 ◽  
Author(s):  
Ferdinand M. Machibya ◽  
Xingfu Bao ◽  
Lihua Zhao ◽  
Min Hu

ABSTRACT Objective: To compare the treatment time, outcome, and anchorage loss among orthodontic patients treated by self-ligating brackets (SLBs) and conventional brackets (CBs). Materials and Methods: A retrospective cohort study compared 34 patients (SLB group) treated by SmartClip brackets (3M Unitek, Monrovia, Calif) to 35 patients (CB group) treated by conventional preadjusted Victory series brackets (3M Unitek) and ligated by stainless steel wire ligatures. Pretreatment (T1) and posttreatment (T2) lateral cephalograms were traced and analyzed using Pancherz sagittal-occlusion analysis to obtain skeletal and dental changes in the maxilla and the mandible. The dental cast models were assessed by the Peer Assessment Rating (PAR) Index for the treatment outcomes. Results: The mean treatment time for SLBs (19.19 months) did not show a statistically significant difference from 21.25 months of CBs; the treatment time and pretreatment PAR scores were strongly correlated. There was no difference in anchorage loss between the SLB and CB groups. There were significant dental and skeletal changes among adolescent orthodontic patients regardless of the bracket used. The lingual inclination of the mandibular incisors in the CB group was 3.62° more than in the SLB group (P &lt; .01). Conclusions: The treatment time and anchorage loss are not influenced by the type of bracket used. There are significant dental and skeletal changes among adolescent orthodontic patients regardless of the bracket used. There is significantly greater lingual inclination of mandibular incisors in the CB group than in the SLB group.


2017 ◽  
Vol 24 (8) ◽  
pp. 1126-1130 ◽  
Author(s):  
Neda Sattarnezhad ◽  
Samantha Farrow ◽  
Dorlan Kimbrough ◽  
Bonnie Glanz ◽  
Brian Healy ◽  
...  

Background: Visual symptoms are common in multiple sclerosis (MS). Low-contrast visual acuity (LCVA) testing using Sloan charts has demonstrated increased sensitivity for visual deficits compared to high-contrast acuity testing. Computerized testing of visual acuity may facilitate use in the clinic setting. Objectives: To evaluate the agreement between an iPad-based and Sloan testing of LCVA in a cohort of MS patients. Methods: A total of 38 patients with relapsing-remitting MS were enrolled after providing informed written consent at Partners MS Center, Brigham and Women’s hospital. Monocular LCVA was measured using retroilluminated Sloan chart and iPad-based LogMAR chart. Number of correct letters and agreement between two measurements were assessed for each eye using Bland–Altman analysis and paired t-test. Results: For both eyes, there was no significant difference in number correct between the two measurements using a paired t-test, and there was high correlation between two measurements (oculus dextrus (OD) r = 0.89, p < 0.001; oculus sinister (OS) r = 0.78, p < 0.001). The limits of agreement were −7.9 to +8.5 letters for the right eye and −10.9 to +11.2 letters for the left eye. Conclusion: An iPad-based LCVA test shows good agreement with Sloan testing in MS patients.


2018 ◽  
Vol 2 (02) ◽  
pp. 151
Author(s):  
Devi Yulita Metasari ◽  
Akhmad Hasanuddin ◽  
Dewi Junita Koesoemawati

Laston AC-WC is the outer layer of the pavement that is directly related to the outside, so a strong mixture is required. One of the major effects is the aggregate gradation.This experiment aims to find out the comparison of Laston AC-WC performance between mixtures used aggregat egradation above and below the restriction zone. Each mixture used 6 variations of asphalt content and there were 3 specimens on each variation of bitumen content. The asphalt contents used were 5,5%; 6%; 6,5%; 7%; 7,5% dan 8%. From the results of the experiments, the mixture with the aggregate above the restriction zone at 7% and 7.5% asphalt content had a density value of 2.13 gr / cc and 2.12 gr / cc respectively; VMA value of 15.49% and 15.91%; VFA values ​​of 80.48% and 79.98%; VIM value of 3.16% and 3.18%; stability value of 3013.58 kg and 2332.57 kg; flow value of 2.47 mm and 2.18 mm; as well as MQ values ​​of 1222.25 kg / mm and 1184.59 kg / mm. While on the mixture with the aggregate under the restriction zone in the asphalt content of 7% and 7.5% obtained density value of 2.11 gr / cc and 2.14 gr / cc; VMA value of 17.21% and 16.3%; VFA value of 71.21% and 78.65%; VIM value of 4.99% and 3.49%; stability value of 2518,75 kg and 3234,72 kg; flow values ​​of 2 mm and 2.07 mm; as well as the MQ value of 1259.37 kg / mm and 1623.54 kg / mm. From the results are analyzed Paired T test and found that the value of flow has a significant difference. The high flow rate was found in the mixture with the aggregate above the restriction zone at 7% asphalt content, so this mixture is more durable due to good flexibility. Laston AC-WC merupakan lapisan terluar perkerasan yang berhubungan langsung dengan keadaan luar, sehingga dibutuhkan campuran yang kuat. Salah satu yang berpengaruh besar adalah gradasi agregat yang digunakan. Penelitian ini bertujuan untuk mengetahui perbandingan kinerja laston AC-WC antara campuran yang menggunakan gradasi di atas dengan di bawah daerah larangan. Penelitian ini dilakukan terhadap campuran laston AC-WC. Masing-masing campuran menggunakan 6 variasi kadar aspal dan terdapat 3 benda uji pada setiap kadar aspal. Kadar aspal yang digunakan adalah 5,5%; 6%; 6,5%; 7%; 7,5% dan 8%. Dari hasil penelitian, campuran dengan agregat di atas daerah larangan pada kadar aspal 7% dan 7,5% memiliki nilai density berturut-turut sebesar 2,13 gr/cc dan 2,12 gr/cc; nilai VMA sebesar 15,49% dan 15,91%; nilai VFA sebesar 80,48% dan 79,98%; nilai VIM sebesar 3,16% dan 3,18%; nilai stabilitas sebesar 3013,58 kg dan 2332,57 kg; nilai flow sebesar 2,47 mm dan 2,18 mm; serta nilai MQ sebesar 1222,25 kg/mm dan 1184,59 kg/mm. Sedangkan pada campuran dengan agregat di bawah daerah larangan pada kadar aspal 7% dan 7,5% didapatkan nilai density sebesar 2,11 gr/cc dan 2,14 gr/cc; nilai VMA sebesar 17,21% dan 16,3%; nilai VFA sebesar 71,21% dan 78,65%; nilai VIM sebesar 4,99% dan 3,49%; nilai stabilitas sebesar 2518,75 kg dan 3234,72 kg; nilai flow sebesar 2 mm dan 2,07 mm; serta nilai MQ sebesar 1259,37 kg/mm dan 1623,54 kg/mm. Dari hasil tersebut dilakukan analisa Uji T Berpasangan dan didapatkan bahwa nilai flow memiliki perbedaan yang signifikan. Nilai flow yang tinggi terdapat pada campuran dengan agregat di atas daerah larangan pada kadar aspal 7%, sehingga campuran ini lebih tahan lama dikarenakan memiliki kelenturan yang baik.


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