Bergman Thahar, Bergman
Fakultas Kedokteran Gigi Universitas Padjadjaran Bandung, Jalan Sekeloa Selatan, No. 1 Bandung

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The use of indexs objective grading system and smile line for evaluating the balance functional occlusion in orthodontic treatment Damaryanti, Endah; Thahar, Bergman; Salim, Jono; Mardiati, Endah
Padjadjaran Journal of Dentistry Vol 26, No 3 (2014): November 2014
Publisher : Faculty of Dentistry Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (158.107 KB) | DOI: 10.24198/pjd.vol26no3.14002

Abstract

Introduction: Orthodontic treatment has a main purpose to reach balanced functional occlusion and create a harmonic esthetic face. But several studies indicates that orthodontic treatment influence smile esthetics, especially smile arc and buccal corridor. One-third of the treated patients showed a flat smile arc and orthodontic treatment with extraction resulted in excessive buccal corridors. The purpose of this research is to evaluate the difference of the Objective Grading System index, developed by the American Board of Orthodontics (ABO) and smile aesthetics in patients with Class I dentoskeletal malocclusion before and after orthodontic treatment. Methods: Twenty dental casts, panoramic radiographs and grouped pre and post-treatment. Dental casts and panoramic radiographs are scored according to the guidelines of the Objective Grading System. Extra-oral photographs were assessed by researcher using modified Goldstein dentofacial analysis. Result of measurements were evaluated with statistical t-test. Results: Results of the research indicates Objective Grading System index and also score of smile esthetics before and after orthodontic treatment shows difference statistically (for Objective Grading System index P = -1121 > 2.09 and for smile esthetics P = 5.15 > 2.09). Conclusions: Extremely weak relationship was found between Objective Grading System index and Aesthetics smiles.
Decrease in alveolar crest height due to orthodontic treatment method using standard edgewise fix appliance molar Nauli, Jessy; Thahar, Bergman; Salim, Jono; Mardiati, Endah
Padjadjaran Journal of Dentistry Vol 26, No 3 (2014): November 2014
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (328.509 KB) | DOI: 10.24198/pjd.vol26no3.14007

Abstract

Introduction: Orthodontic treatment could influence alveolar bone height. The longer the treatment, the more effect it will be. The purpose of this study was determined the differences in alveolar bone height at the canine, second bicuspid, mandibular first molar in the case of mandibular premolar extraction with different treatment duration. Methods: This study is a retrospective – comparative analytic study, involving 17 samples which have finished orthodontic treatment at FKG Unpad PPDGS orthodontic clinic. The alveolar bone height was determined from panoramic x-rays obtained by measuring the ratio of alveolar crest and the cemento enamel junction to the tooth cusp (Bjorn method). The results of the study were then analyzed using t-student test with Pvalue=0.05. Results: The results showed a significant correlation in alveolar bone height reduction. In the group less than 2-years treatment, there was a reduction in alveolar bone height only at the mesial side of tooth 35 while there was a significant reduction at the distal canine, the mesial-distal second bicuspid and the mesial-distal side of the mandibular first molar in a group more than 2 years-treatment. Conclusions: This study concluded that there was a significant influence on the duration of treatment and alveolar bone height reduction in the group more than 2-years treatment.
The difference in the ratio of the maxillary anterior teeth mesiodistal to the golden proportion value after class I malocclusion treatment with Edgewise standard fixed appliance Suherman, Agutina; Mardiati, Endah; Hambali, Tono; Thahar, Bergman
Padjadjaran Journal of Dentistry Vol 22, No 2 (2010): July 2010
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol22no2.26870

Abstract

Introduction: The purpose of this study was to determine the difference in the ratio of maxillary anterior teeth as the results of Edgewise Standard fixed orthodontic treatment with and without extraction with golden proportion values. Methods: This study is using a retrospective analitist descriptive method. Sample divided at two groups of 13 patients with extraction of first premolar and 19 patients without first premolar extraction. The study population was patients who had completed the Edgewise Standard fixed orthodontic treatment at the Orthodontics Specialist Professional Program of the Faculty of Dentistry Universitas Padjadjaran at 2000-2009. The study was conducted using frontal intraoral photometry before and af-ter treatment with 3R photo size, then measured with electronic digital calliper software. Results: Evaluation is done by measuring the maxillary anterior teeth ratio using phimatrix software on frontal intra oral photometry of the post standard edgewise orthodontics patients with Class I malocclusion to the golden proportion, then proceed with statistical t-test. Conclusion: The conclusion of this study shows that the maxillary anterior teeth post standard edgewise orthodontic treatment in class I dento-skeletal patients with or without the first premolar extraction whose treated in orthodontic resident’s clinic Padjadjaran University shows a significant differences with the golden proportion.
Changes in dentofacial vertical dimension with class I before and after treatment orthodontic appliance with and without extractions of first four premolar teeth Octavianti, Fitri; Salim, Jono; Thahar, Bergman; Mardiati, Endah
Padjadjaran Journal of Dentistry Vol 22, No 2 (2010): July 2010
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol22no2.26853

Abstract

Introduction: There are different opinions on the effect of extraction on the first four premolar teeth. The purpose of this study is to analyzed change of dentofacial vertical dimension before and after orthodontic treatment for two groups of patients treated with and without extractions of first four premolar teeth. Methods: A method by Sivakumar and Valiathan (2008) using lateral cephalometry on 20 extraction cases and 15 cases of non-extraction was employed. Tracing was conducted before and after orthodontic treatment and some 13 measurements were conducted manually using a protractor, i.e. mandibular plane angle, anterior facial height, lower anterior facial height, posterior facial height, facial height index, FH-U1, FH-U6, FL -L1, FL-L6, Svertical-U1, Svertical-U6, Pogvertical-L1-L6 Pogvertical. Statistical analysis using t-test with P> 0.05 for paired, Showed that there was no significant changes in dentofacial vertical dimension for malocclusion Class I cases before and after treatment for samples treated with and without extraction of the first four premolar teeth for both groups of samples. Results: No significant difference found in the dentofacial vertical dimension for the extraction and non-extraction groups of samples. Conclusion: orthodontic treatment for class I malocclusion cases, both with and without extraction, did not cause any significant difference in the dentofacial vertical dimension. Showed that there was no significant changes in dentofacial vertical dimension for class I malocclusion cases before and after treatment for samples treated with and without extraction of the first four premolar teeth for both groups of samples. Results: No significant difference found in the dentofacial vertical dimension for the extraction and non-extraction groups of samples. No significant difference found in the dentofacial vertical dimension for the extraction and non-extraction groups of samples. Conclusion: There are no changes in the vertical dimension of dentofacial before and after treatment in Class I with a retraction and extraction four first premolars fixed orthodontic appliance.
The effectiveness of paint remover to resin adhesive residue on base mesh of metal bracket Abubakar, Sukarto; Thahar, Bergman; Hambali, Tono S.; Salim, Jono
Padjadjaran Journal of Dentistry Vol 20, No 2 (2008): July 2008
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1618.175 KB) | DOI: 10.24198/pjd.vol20no2.14133

Abstract

The purpose of this study is to know whether paint remover can be used to remove resin adhesive residue on the base mesh of metal bracket. The study is based on in vitro experiment with descriptive-comparative and the test sample is 30 used brackets after treatment at Orthodontic Specialist Clinic Faculty of Dentistry Universitas Padjadjaran. The sample is randomly divided into 3 groups and each group consists of 10 brackets and then its bath in paint remover for 8, 10, and 12 hours, respectively and statistically analyzed with chi-square (χ2) and α= 0.05 and the results show signifi cantly diff erence between resin residue before and after immersion, while resin residue after immersion its group showed there are no signifi cant diff erences. Based on analyzed, it can be concluded that paint remover can be used to remove resin adhesive residue on base mesh of metal bracket and that 8, 10, and 12 hours immersion duration the result show effectiveness similiary.
Post orthodontic treatment stability measurement in dentoskeletal class I malocclusion based on the objective grading system index Pasaribu, Bernard Anthony; Thahar, Bergman; Salim, Jono; Mardiati, Endah
Padjadjaran Journal of Dentistry Vol 23, No 1 (2011): March 2011
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3113.113 KB) | DOI: 10.24198/pjd.vol23no1.14062

Abstract

The purpose of this study was to examine the stability of orthodontic treatment results in dentoskeletal class I malocclusion treated with and without extraction of four premolars and to compare the stability of treatment result between those groups. Occlusal relationship after treatment and six-month post retention were measured on dental cast using The Objective Grading System Index at Orthodontic Specialist Clinic, Faculty of Dentistry Universitas Padjadjaran. The analytic descriptive study was carried out on 30 samples that comprised 14 samples were treated without extraction of four premolars and 16 samples were treated with extraction of four premolars. ABO Measuring Gauge was used to measure seven variables: tooth alignment, the height of the marginal ridges, buccolingual inclination, occlusal relationships, occlusal contacts, overjet, and interproximal tooth contacts. The results were statistically analyzed with the Wilcoxon rank test to test the difference of The Objective Grading System Index between posttreatment and postretension. Mann-Whitney U test was applied to determine the difference between the group with the extraction of four premolars and the group without extraction of four premolars. The level of significance was set at 0.05. The results of this study showed these following variables: tooth alignment, occlusal contacts, and overjet were unstable at the group with the extraction of four premolars, while only tooth alignment was found to be unstable in the group without extraction of the four premolars. Mann-Whitney U test did not show statistically significant difference in stability comparison test between the groups.
Mandibulary dental arch form differences between level four polynomial method and pentamorphic pattern for normal occlusion sample Yuliana, Y.; Thahar, Bergman; Salim, Jono; Mardiati, Endah
Padjadjaran Journal of Dentistry Vol 23, No 2 (2011): July 2011
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (514.059 KB) | DOI: 10.24198/pjd.vol23no2.14021

Abstract

The aim of an orthodontic treatment is to achieve aesthetic, dental health and the surrounding tissues, occlusal functional relationship, and stability. The success of an orthodontic treatment is influenced by many factors, such as diagnosis and treatment plan. In order to do a diagnosis and a treatment plan, medical record, clinical examination, radiographic examination, extra oral and intra oral photos, as well as study model analysis are needed. The purpose of this study was to evaluate the differences in dental arch form between level four polynomial and pentamorphic arch form and to determine which one is best suitable for normal occlusion sample. This analytic comparative study was conducted at Faculty of Dentistry Universitas Padjadjaran on 13 models by comparing the dental arch form using the level four polynomial method based on mathematical calculations, the pattern of the pentamorphic arch and mandibular normal occlusion as a control. The results obtained were tested using statistical analysis T student test. The results indicate a significant difference both in the form of level four polynomial method and pentamorphic arch form when compared with mandibular normal occlusion dental arch form. Level four polynomial fits better, compare to pentamorphic arch form.
The comparison of speed and accuracy between manual and computer-aided measurements of dental arch and jaw arch lengths in study model casts Wibisono, Dinah; Thahar, Bergman; Hambali, Tono S.; Salim, Jono
Padjadjaran Journal of Dentistry Vol 19, No 1 (2007): March 2007
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (422.498 KB) | DOI: 10.24198/pjd.vol19no1.14170

Abstract

This research is aimed at observing whether there are differences in the measurement results between dental arch length and arch length measured manually and by using computer software, i.e. Corel Draw 12, in study model cast as well as the measurement speed in both techniques. The method used in this research is the descriptive comparative method. The measurement is performed to 52 study model cast samples with the Spee Curve depth of < 1.5 mm, between 1.5 and 3 mm, > 3 mm. The measurements are performed using 2 techniques: a manual technique using a calliper and by using Corel Draw 12, a computer program with a computer scanner. The t-test statistic is used to reveal whether there are differences in the measurement results between the two techniques and which method needs shorter time. Statistically, there are significant differences either in the speed of the measurement or the results of the measurement using both techniques where t-calculated > t table. The deeper the Spee curve, the more different the results from the manual technique and computed technique. The differences are in the range of 0.32 to 0.52 mm for dental arch length and 0.33 to 0.43 mm for arch length. These differences are still acceptable clinically. By referring to the results of this research, it is expected that computer usage can be increased and become an alternative against manual technique of measurement.