scholarly journals Perbandingan Tinggi Tulang Maksila dan Mandibula di Regio Interisisivi Sentral antara Pra dan Pasca Perawatan Ortodontik dengan Pencabutan ke Empat Gigi Premolar Pertama (Kajian pada Foto Panoramik)

2012 ◽  
Vol 19 (2) ◽  
pp. 114
Author(s):  
Wayan Ardhana

Latar belakang. Perawatan ortodontik pada kasus-kasus gigi berjejal dan protusif sering membutuhkan pencabutan gigi premolar untuk penyediaan ruang agar gigi berjejal dapat dirapikan dan gigi depan yang protusif dapat diundurkan. Gigi insisivus sentral merupakan salah satu gigi yang paling banyak mengalami pergerakan selama proses retrusi. Pergerakan gigi insisivus mengakibatkan terjadinya perubahan pada puncak tulang alveolar selama perawatan yang mungkin akan mempengaruhi tinggi tulang maksila dan mandibula pasca perawatan. Tujuan penelitian. Membandingkan tinggi tulang maksila dan mandibula di daerah interdental gigi insisivi sentral pada foto panoramic antara pra dan pasca perawatan maloklusi dengan pencabutan ke empat gigi premolar pertama. Metode penelitian. Digunakan 30 pasang foto panoramic pra dan pasca perawatan yang dipilih sesuai dengan kriteria penelitian dari pasien-pasien peneliti yang telah selesai mendapat perawatan aktif dengan teknik edgewise. Analisis Kolmogorov-Smirnov dan Shaviro-Wilk digunakan untuk uji normalitas dan Student t-test data berpasangan digunakan untuk menguji perbedaan tinggi tulang maksila dan mandibula antara pra dan pasca perawatan. Hasil Penelitian. Tidak didapatkan perbedaan (p>0,05) tinggi tulang maksila dan amndibula antara pra dan pasca perawatan ortodontik dengan pencabutan keempat gigi premolar pertama. Background. In orthodontic treatment, premolar extractions are often needed in crowding and prostrusive cases to provide space for the teeth can be aligned and retracted to their desire position. Central incisor teeth are the teeth that mostly undergone more movement during retrusion. The change of the alveolar bone crest in this incisors might affect the maxillary and mandibular bone height post-treatment. Research objectives. The present study aimed to compare the bone height in the interdental maxillary and mandibular central incisors regions before and after orthodontic treatment with four first premolars extractions on panaromic radiograph. Research Methods. Thirty pairs of panoramic radiograph of pre and post treatment were selected according to the criteria of the study f the patients who have completed their active treatment with edgewise technique. The results were analyzed by the Kolmogorov-Smirnov and Shaviro-Wilk for testing the data normality and the Student paired t-test for testing the significancy of maxillary and mandibula bone heights differences between pre and post treatment. Results. There were no differences (p>0,05) between the maxillary and mandibular bone height were shown in pre and post orthodontic treatment with four first premolars extractions.

2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Nugroho Ahmad Riyadi

The aim of orthodontics treatment is normalization of teeth position in three planes, using various orthodontics appliance to reach the chepalometric standar and normal occlusion. Orthodontic treatment for dentoskeletal class II division 1 malocclusion in growing patients using myofunctional appliance may correct anteroposterior planes of mandibula. This study was a descriptive retrospective analytic study to look at the success of Orthodontic treatment for dentoskeletal class II division 1 in growing patients with myofunctional appliance using chepalometrics analysis Steiner value. The sample used in this study is chepalogram radiographic from patient with dentoskeletal class II division 1 malocclusion in growing patients before and after using myofunctional appliance in PPDGS orthodontics Clinic of Padjadjaran University. Statistic analysis were performed with pair t-test and Wilcoxon. Based on this study, it is concluded that orthodontic treatment with myofunctional appliance such as activator and twin block in growing patient with dentoskeletal class II division 1 malocclusion shows significant changes and compatibility with the normal criteria.


2019 ◽  
Vol 90 (2) ◽  
pp. 173-180 ◽  
Author(s):  
Fan Zhang ◽  
Suk-Cheol Lee ◽  
Jun-Beom Lee ◽  
Kyung-Min Lee

ABSTRACT Objective: To evaluate changes in shape and alterations in thickness and vertical marginal bone levels of the alveolar bone around the maxillary and mandibular incisors before and after orthodontic treatment with premolar extraction using geometric morphometric analysis. Materials and Methods: Thirty-six patients with Class I bialveolar protrusion who underwent orthodontic treatment with premolar extraction were included. Cone-beam computed tomographic scans were obtained from the patients before and after treatment. Five fixed landmarks and 70 semilandmarks were used to represent the morphology of the alveolar bone around the maxillary and mandibular incisors. The coordinates of the landmarks of the alveolar bones were generated by Procrustes fit. The labial and lingual alveolar bone thicknesses around the maxillary and mandibular incisors and vertical marginal bone level were assessed quantitatively. Results: There was a significant difference in shape change of the alveolar bone before and after treatment. The deformation grid of the thin plate spline showed that the thickness and vertical marginal bone decreased on the lingual side after treatment. Shape changes were greater for the lingual alveolar bone on the mandibular incisor than for the maxillary incisors. Conclusions: Orthodontic treatment with premolar extraction might cause loss of alveolar bone around the maxillary and mandibular incisors. Careful consideration is needed to avoid iatrogenic degeneration of periodontal support around the incisors, particularly in the lingual area.


2022 ◽  
Vol 13 (1) ◽  
pp. 250-254
Author(s):  
Maftuhatur Rizkiyah Putri ◽  
Almira Disya Salsabil ◽  
I Made Agus Dwipayana ◽  
Widati Fatmaningrum

Introduction: The COVID-19 pandemic has harmed various fields, and people's activities cannot run as usual. Prevention of the transmission of COVID-19 is very important to be applied in everyday life. Washing hands with soap or hand sanitizer is easy and inexpensive prevention to do, but there are still many people who are wrong in practicing it. This needs to be done more counseling and education to the community in order to increase public knowledge about handwashing and hand sanitizer. Method: This research is an analytic study with a research design using a one-group pretest-posttest design. Using 31 respondents from Taro villagers who attended the counseling. Data analysis using Paired Sample T-test and Kolmogorov-Smirnov Test for Normality Test. Result: The average value of knowledge before counseling is 53.8710 while the value after counseling is 82.9677. Paired Sample T-test and obtained a significance value of 0.000 so that a significant difference was found (<0.005) between the values before and after counseling. Conclusion: There is a significant difference in the level of knowledge before and after handwashing and hand sanitizer counseling.


2004 ◽  
Vol 51 (4) ◽  
pp. 177-182
Author(s):  
Branislav Glisic ◽  
Ivana Scepan ◽  
Zorana Nikolic ◽  
Dusan Djordjevic

The aim of this study was to examine the efects of Delair`s mask on facial skeleton in patients with Class III antero-posterior jaw relationship. Two groups of children were evaluated. The first group of 34 children with Class III was treated with Delair`s mask. The second group of 46 children with Class III did not receive any orthodontic treatment and was presented as a control group. In the first group pretreatment and post treatment radiographic tracing was done while second tracing in the control group was done a year after diagnostic radiographic tracing. Analysis of the skeletal facial profile was done measuring SNA, SNB and ANB angles. Rotation of the maxillary base (NS/SpP), rotation of the mandibular base (NS/MP) and vertical relationship between jaws (SpP/MP) were also measured. The results were statisticaly analysed using T test, descriptive statistics and Wilcoxon`s test. The results of this study showed changes in facial skeleton in children treated with Delair`s mask compared to the control group. In the first group of children SNA and ANB angles were increased and the SNB angle was decreased.


2021 ◽  
Vol 1 (Volume 1 No 1) ◽  
pp. 38-48
Author(s):  
Hillda Herawati ◽  
Fahrauk Paramayudh ◽  
Rudi Satria Darwis ◽  
Sarah Syarifah

The optimal achievement of orthodontic treatment is determined by a bone remodelling process involving osteoblast, osteoclasts, and the estrogen hormone. Estrogen deficiency can increase osteoclast age and decrease osteoblast, resulting in an imbalance between osteoclasts and osteoblasts. One natural alternative that can replace the role of the hormone estrogen is phytoestrogens. Sauropus androgynus (L.) Merr (katuk) is a phytoestrogen that contains isoflavones with many similarities with estrogens. This research aims to determine the effectiveness of the various doses of ethanol extract of katuk leaves orally on the number of osteoblasts and osteoclasts. This research was conducted using experimental laboratory methods using 24 female Guinea pigs divided into a control group and three groups with various doses of 39.15 mg/BW, 78.3 mg/BW, and 156.5 mg/BW. The observations made in this test were the number of osteoblasts and osteoclasts on the alveolar guinea pig on day 14 and analysed using the one way ANOVA test (p <0.05). All guinea pigs have applied a rubber separator to the left incisor and given a dose according to the group, and after 14th days, histological preparations were made. The results showed that the highest number of osteoblasts was at a dose of 78.3 mg/BW, and the lowest number of osteoclasts was at a dose of 39.15 mg/BW with values of 15.03 ± 2.27 and 1.73 ± 0.56, respectively. Statistically, the number of osteoblasts between the treatment and control groups significantly differed (p = 0.04), while the number of osteoclasts between the treatment and control groups had no significant difference (p = 0.228). This study concludes that katuk leaves extract has effectiveness in increasing the number of osteoblasts in orthodontic treatment, while the decrease in osteoclasts is not statistically proven.


2011 ◽  
Vol 1 (1) ◽  
pp. 9-14 ◽  
Author(s):  
Maria Teresa Triscari ◽  
Palmira Faraci ◽  
Valerio D’Angelo ◽  
Viviana Urso ◽  
Dario Catalisano

This study aimed to test a combined treatment with eye movement desensitization and reprocessing (EMDR) and cognitive behavioral therapy (CBT), compared with CBT integrated with systematic desensitization, in reducing fear of flying. Participants were patients with aerophobia, who were randomly assigned to two experimental groups in a before- and after-treatment research design. The Flight Anxiety Situations Questionnaire (FAS) and the Flight Anxiety Modality Questionnaire (FAM) were used. The efficacy of each program was evaluated comparing the pre- and post-treatment levels of fear of flying within subjects. A comparison of the post-treatment scores between subjects was also conducted. Results showed the effectiveness of each model with a significant improvement in the examined psychological outcomes in both groups.


2006 ◽  
Vol 5 (1) ◽  
Author(s):  
Risa Watti

The purpose of this research is to obtain the empirical evidence of the company which has already issued the obligation. Whether that such company issues the obligation manipulates its earnings (or conducting "the window dressing") in order to perform the financial report of the client (or the prospective obligation seller) seems more profitable and excellent. The data results front the research, taken from the company which issues the obligation and has been listed at Jakarta Stock Exchange (BEJ) or the company which is 'go public', by picking up the data during the obligation issuance, and also the period of time within two years before and after the issuance. Whether during that period of time, the financial report ofthet company is exactly appropriate or has been manipulated by the client.The data is analysed by using “normality test" (one sample kolmogorov smirnov) if the parameter'uses 'paired sample T-test ± > 0,005 and if non parameter uses whitney U ranks Wilcoxon rank sum W-test ± < 0,005. As a result, showing that not all companies which issue the obligation manipulate the earnings or make up their financial report. It has been proved, in this research there is no'management of earnings' before the obligation issuance as well as the changing profits after the issuance. Thus we conclude, there is no ‘management earning' during the obligation issuance. Therefore, the investor or the prospective investor is not necessarily anxious about theirfinancial report when is reported by the management side to Jakarta Stock Exchange (BEJ) due to the appropiateness of its financial report involving the earning management.


2015 ◽  
Vol 86 (4) ◽  
pp. 543-549 ◽  
Author(s):  
Luma O. Castro ◽  
Iury O. Castro ◽  
Ana Helena G. de Alencar ◽  
José Valladares-Neto ◽  
Carlos Estrela

ABSTRACT Objective:  To evaluate the distance between the cementoenamel junction and the alveolar bone crest before and after orthodontic treatment using cone beam computed tomography (CBCT). Materials and Methods:  The sample comprised 30 patients with Angle Class I malocclusion and mild to moderate crowding. The study database comprised dental CBCT scans obtained before and after orthodontic treatment. The distance between the cementoenamel junction to the bone crest of the buccal (n  =  720) and lingual (n  =  720) surfaces was measured in 24 teeth for each patient using a specific software tool (Xoran version 3.1.62). The Wilcoxon test was used for statistical analysis, and the level of significance was set at P &lt; .05. Results:  The distance between the cementoenamel junction and the bone crest increased in 822 (57%) of the 1440 surfaces after orthodontic treatment. The buccal surface of the lower central incisors had the greatest frequency of increased distance (75%), and the lingual surface of lateral incisors had the lowest (40%). The distance between the cementoenamel junction and the alveolar bone crest was greater than 2 mm (alveolar bone dehiscence) in 162 (11%) of the 1440 surfaces before orthodontic treatment and in 279 (19%) after treatment. Conclusions:  The distance from the cementoenamel junction to the bone crest changed after orthodontic treatment; the distance was greater than 2 mm in 11% of the surfaces before treatment and in 19% after treatment.


Author(s):  
Susi Dwimulyani

<p><em>This research is designed to examine the stock split in Indonesia Capital Market. We want to get empirical evidence the relationship and the effect of stock market price and frequency of stock trading to stock split actions. We also want to know the defferences of frequency of stock trading and companies operating income, before and after stock split. Research samples were selected using purposive (judgement) sampling method<br /> among listed company in Jakarta Stocks Exchange (JSX) and ninety two companies could meet as research sample, where they are the company that listed from 2000 - 2006. Afterwards this samples classified into fourty six stock splitter companies and fourty six non stock splitter companies. Before hypothesis test, normality data test using one sample Kolmogorov Smirnov test to determine whether the data were normal or not, multicolinearity test to determine whether discovered relationship among independent variables and outocorelation test to examine the correlation error between period. The hypothesis test are tested using the logistic regression to see weather the stock market price and frequency of stock trading have significant influence to the stock split, and using the paired sample t test to compare the fourty six stock splitter companies have the increasing frequency of stock trading and operating income, before and after stock split. The result of the logistic regression showed that stock market price influence stock split but the frequency of stock trading did not. The result of paired t-test showed that there had no increasing frequency of stock trading and operating income before and after stock split.</em></p>


2021 ◽  
Vol 44 (3) ◽  
Author(s):  
Jiangjian Huang ◽  
Jianping Xue ◽  
Jinchao Gu

Purpose: To investigate the therapeutic effects of minocycline combined with tinidazole in the treatment of chronic periodontitis (CP). Methods: Seventy-three CP patients treated May 2018–December 2019 at Yuyao People’s Hospital (Yuyao, China) were enrolled in this study: 34 were treated with minocycline alone (control group; CG) and 39 were treated with a combination of minocycline and tinidazole (observation group; OG). Both groups were treated continuously for four weeks and plaque index (PLI), bleeding index (BI), periodontal pocket depth (PD), periodontal attachment level (PAL) and alveolar bone height were compared before and after treatment. Pain was evaluated using the visual analogue scale (VAS). Levels of TNF-α and IL-6 before and after treatment were determined using an enzyme-linked immunosorbent assay. Adverse reactions were compared. Results: In each group, PLI, BI, PD, PAL and alveolar bone height were lower after treatment (P<0.05), and those in OG were lower than those in CG (P<0.05). TNF-α and IL-6 levels in both groups were lower after treatment (P<0.05), and the levels in serum of the OG were lower than those of the CG (P<0.05). After treatment, the VAS in OG was lower than that of CG (P<0.05). There was no significant difference in adverse reactions between groups (P>0.05). Conclusion: Minocycline combined with tinidazole was more effective in treating CP than minocycline alone. This drug combination improved the periodontal indexes and inflammatory reaction of CP and relieved their pain. No significant difference in adverse reactions was seen.


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