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Perawatan Ortodontik Gigitan Terbuka Anterior Zen, Yuniar
Majalah Kedokteran Gigi Indonesia Vol 21, No 1 (2014)
Publisher : Majalah Kedokteran Gigi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Perawatan gigitan terbuka anterior telah lama dianggap sebagai tantangan bagi ortodontis. Prevalensi gigitan terbuka anterior antara 3,5% hingga 11% terdapat pada berbagai usia dan kelompok etnis, serta ada sekitar 17% pasien ortodonti memiliki gigitan terbuka. Stabilitas hasil perawatan gigitan terbuka anterior sangat sulit, karena adanya kombinasi diskrepansi anteroposterior dengan gigitan terbuka skeletal sehingga dibutuhkan tingkat keterampilan diagnosis dan klinis yang tinggi. Etiologi gigitan terbuka anterior sangat kompleks karena dapat melibatkan skeletal, dental, dan faktor-faktor habitual. Eliminasi faktor etiologi merupakan hal yang penting dalam perawatan gigitan terbuka anterior. Berbagai cara perawatan untuk koreksi gigitan terbuka anterior diantaranya bedah ortognatik dan perawatan ortodontik kamuflase, seperti high-pull headgear, chincup, bite blocks, alatfungsional, pencabutan gigi, multi-loop edgewise archwires dan mini implan. Stabilitas hasil perawatan adalah kriteria yang paling penting dalam menentukan cara perawatan gigitan terbuka anterior.Â ABSTRACT: Orthodontic Treatment of Anterior Open Bite. An anterior open bite therapy has long been considered a challenge to orthodontist. The prevalence of anterior openbite range from 3,5 % to 11% among various age and ethnic groups and it has been shown that approximately 17% of orthodontic patients have open bite. Stability of treatment result of anterior open bite with well-maintained results is difficult, because the combination of anteroposteriorly discrepancy with skeletal open bite requires the highest degree of diagnostic and clinical skill. The etiology is complex, potentially involving skeletal, dental and habitual factors. The importance of an anterior open bite therapy is to eliminate the cause of the open bite. Various treatment modalities for the correction of an anterior open bite have been proposed, orthognatic surgery and orthodontic camouflage treatment such as high-pull headgear, chin cup, bite blocks, functional appliances, extractions, multi-loop edgewise arch wires and mini implant. The stability is the most important criterion in deciding the treatment method for anterior open bite malocclusion.

Perawatan Ortodontik Gigitan Terbuka Anterior Yuniar Zen
Majalah Kedokteran Gigi Indonesia Vol 21, No 1 (2014): August
Publisher : Faculty of Dentistry, Universitas Gadjah Mada

Orthodontic Treatment of Anterior Open Bite. An anterior open bite therapy has long been considered a challenge to orthodontist. The prevalence of anterior openbite range from 3,5 % to 11% among various age and ethnic groups and it has been shown that approximately 17% of orthodontic patients have open bite. Stability of treatment result of anterior open bite with well-maintained results is difficult, because the combination of anteroposteriorly discrepancy with skeletal open bite requires the highest degree of diagnostic and clinical skill. The etiology is complex, potentially involving skeletal, dental and habitual factors. The importance of an anterior open bite therapy is to eliminate the cause of the open bite. Various treatment modalities for the correction of an anterior open bite have been proposed, orthognatic surgery and orthodontic camouflage treatment such as high-pull headgear, chin cup, bite blocks, functional appliances, extractions, multi-loop edgewise arch wires and mini implant. The stability is the most important criterion in deciding the treatment method for anterior open bite malocclusion.

Posterior transverse interarch discrepancy on HbE β thalassemia patients Yuniar Zen; Loes D. Sjahruddin
Dental Journal (Majalah Kedokteran Gigi) Vol. 44 No. 1 (2011): March 2011
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Background: One of the symptoms that often arises on thalassemia patients is disharmony dentofacial, class II skeletal malocclusion, as a result of the malrelation of maxilla and mandible. This malrelation can be affected by either maxillary bone position, dentoalveolar maxillary position, mandibular bone position, dentoalveolar mandibular position, or combinations of those components. Purpose: The study was aimed to examine whether there is posterior transverse interarch discrepancy on the HbE β thalassemia patients or not. Methods: This study is an observational research with cross-sectional design. The sample consisted of 33 HbE β thalassemia patients and 33 non-thalassemia patients as a control group aged 12–14 years. Lateral cephalogram was carried out and dental casts of maxillary and mandibular dental arches were also taken in all of those patients. Results: There was no difference between the maxillary intermolar width of the HbE β thalassemia patients and that of the normal ones, but the mandibular intermolar width of the HbE β thalassemia patients was significantly smaller than that of the normal ones. Beside that, posterior transverse interarch discrepancy of of the HbE β thalassemia patients was significantly greater than that of the normal ones, which showed great difference between maxillary and mandibular intermolar widths. Conclusion: Posterior transverse interarch discrepancy of the HbE β thalassemia patients was different from that of the normal ones. The dentofacial abnormalities on the HbE β thalassemia patients aged 12–14 years primarily was due to disporposional dentofacial growth in the vertical, sagittal, and transversal directions, especially in the posterior region.Latar belakang: Salah satu akibat yang sering timbul pada penderita talasemia adalah disharmoni dentofasial berupa maloklusi skeletal kelas II yang merupakan kelainan hubungan maksila dan mandibula. Malrelasi ini dapat dipengaruhi oleh posisi maksila, posisi dentoalveolar maksila, posisi mandibula, dan posisi dentoalveolar mandibula atau kombinasi komponen ini dalam banyak variasi. Tujuan: Penelitian ini adalah untuk melihat apakah ada diskrepansi antar rahang arah tranversal di regio posterior pada penderita talasemia beta HbE. Metode: Penelitian ini adalah penelitian observasional dengan disain potong lintang. Sampel terdiri atas 33 penderita talasemia beta HbE dan 33 subjek normal (non talasemia) usia 12–14 tahun. Dilakukan pengambilan foto sefalogram lateral dan pembuatan model studi gigi RA dan RB pada semua subjek penelitian. Hasil: Jarak intermolar maksila tidak berbeda dengan subjek normal, namun jarak intermolar mandibula lebih kecil secara bermakna dibandingkan dengan subjek normal. Selain itu, diskrepansi antar rahang dalam arah transversal di regio posterior lebih besar secara bermakna dibanding subjek normal, yang menunjukkan besarnya selisih jarak antara jarak intermolar maksila dan jarak intermolar mandibula. Kesimpulan: Diskrepansi antar rahang arah transversal di regio posterior antara penderita talasemia beta HbE dengan subjek normal usia 12–14 tahun. Kelainan dentofasial pada penderita talasemia beta HbE usia 12–14 tahun disebabkan oleh pertumbuhan disporposional dentofasial berbeda arah vertikal, sagital dan transversal terutama di regio posterior.

The Release of Total Metal Ion and Genotoxicity of Stainless Steel Brackets: Experimental Study Using Micronucleus Assay Irene Karlina; Rahmi Amtha; Boedi Oetomo Roeslan; Yuniar Zen
The Indonesian Biomedical Journal Vol 8, No 2 (2016)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v8i2.193

BACKGROUND: Stainless steel brackets are composed of various metal that may corrode in oral cavity. Corrosion is caused by the release of metal ions such as chromium, nickel, and iron. The release of metal ions can cause adverse effects such as toxicity, allergic, and mutagenicity. To evaluate the biocompatibility of stainless steel brackets, micronucleus assay as one of genotoxicity assay is used in this study. To determine the differences and the correlation of metal ions release and genotoxic activity among three brand stainless steel brackets.METHODS: Three brands of brackets were immersed in artificial saliva for 672 hours and the release of ion chromium, nikel and iron were examined. The cytokynesis block micronucleus assay (CBMN) using lymphocytes was performed as well.RESULTS: The highest metal releasing were nickel, cromium, iron, respectively (30.5, 27.2, 23.4 ppb). There was a significant differences between total nickel and iron ion release among three brand brackets (p=0.04, p=0.02). Genotoxicity of metal ion released was correlated with durration of immersion brackets (p=0.01). Genotoxicity was significant correlated with the release of chromium (p=0.03) and nickel (p=0.01).CONCLUSION: Genotoxicity of stainless steel brackets was influenced by duration of immersion but not influenced by brand brackets. KEYWORDS: genotoxicity, stainless steel brackets, metal ion

METODE PENGUKURAN SUDUT GONIAL ANTAR POLA VERTIKAL SKELETAL PADA SEFALOMETRI LATERAL Areta Salim Andri Putri; Yuniar Zen
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Vol. 7 No. 2 (2022)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/pdk.v7i2.13195

Background: Gonial angle is one of the angles measured in vertical skeletal analysis using lateral cephalograms. Gonial angle is made of tangent line to the posterior border of mandibular ramus with mandibular plane. Definition of gonial angle depends on mandibular plane which generally consists of various methods according to Downs, Tweed, and Steiner. Purpose: To investigate the difference of gonial angles measurement methods among vertical skeletal patterns on lateral cephalograms. Methods: Observational analytic research was conducted on 21 lateral cephalograms of orthodontic patients who had come to one of orthodontic clinic in Solo in 2016-2021. The cephalograms were taken by the same operator using Vatech PaX-i3D™, then they were categorized into 3 vertical skeletal pattern groups. Reference points and tracings were submitted to supervising orthodontist via ZOOM twice daily in the morning and in the afternoon. The measured data was recorded in table and was analyzed with Statistical for Social Science (SPSS) program. Results: In each vertical skeletal pattern groups, there was no significant difference found among Downs’s, Tweed’s, and Steiner’s gonial angles. There was significant difference among gonial angles of hypodivergent, normodivergent, and hyperdivergent samples. Conclusion: There was no significant difference of three gonial angle measurement methods among three vertical skeletal patterns on lateral cephalograms.

METODE PENGUKURAN SUDUT GONIAL ANTAR POLA VERTIKAL SKELETAL PADA SEFALOMETRI LATERAL Areta Salim Andri Putri; Yuniar Zen
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Vol. 7 No. 2 (2022)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

Background: Gonial angle is one of the angles measured in vertical skeletal analysis using lateral cephalograms. Gonial angle is made of tangent line to the posterior border of mandibular ramus with mandibular plane. Definition of gonial angle depends on mandibular plane which generally consists of various methods according to Downs, Tweed, and Steiner. Purpose: To investigate the difference of gonial angles measurement methods among vertical skeletal patterns on lateral cephalograms. Methods: Observational analytic research was conducted on 21 lateral cephalograms of orthodontic patients who had come to one of orthodontic clinic in Solo in 2016-2021. The cephalograms were taken by the same operator using Vatech PaX-i3D™, then they were categorized into 3 vertical skeletal pattern groups. Reference points and tracings were submitted to supervising orthodontist via ZOOM twice daily in the morning and in the afternoon. The measured data was recorded in table and was analyzed with Statistical for Social Science (SPSS) program. Results: In each vertical skeletal pattern groups, there was no significant difference found among Downs’s, Tweed’s, and Steiner’s gonial angles. There was significant difference among gonial angles of hypodivergent, normodivergent, and hyperdivergent samples. Conclusion: There was no significant difference of three gonial angle measurement methods among three vertical skeletal patterns on lateral cephalograms.

Lebar Nasofaring Pada Maloklusi Skeletal Kelas II Dan Skeletal Kelas I (Kajian pada Rekam Medik Pasien Ortodonti RSGM Fakultas Kedokteran Gigi Universitas Trisakti Tahun 2016-2017) Yuniar Zen; salshabila Rahmania; Riko Nofrizal
Jurnal Kedokteran Gigi Terpadu Vol. 1 No. 1 (2019): JULY
Publisher : Fakultas Kedokteran Gigi Universitas Trisakti

Backgrounds: Severe class II skeletal malocclusion could cause unfavorable facial appearance and impairments of mastication, swallowing, speaking, and breathing functions. Mouth breathing is one of the etiologies of malocclusion, caused by the narrowing of upper pharyngeal width. The aim of this study is to determine the upper pharyngeal width of class I and class II skeletal malocclusion. Materials and Methods: This study is an analytic observational method with cross sectional study design. Cephalogram samples are taken from patients of Trisakti University Dental Hospital in 2016-2017. The analysis is performed by measuring angles of SNA, SNB, ANB (class I, ANB: 2-4° and class II, ANB>4°), and upper pharyngeal width according to McNamara Analysis. Results: Average SNA angle is 8,40° (± 3,91), average SNB angle is 75,82° (± 3,62), average ANB angle is 4,58° (± 1,55), average upper pharyngeal width is 9,24 mm (± 2,20), average upper pharyngeal width of class I skeletal malocclusion group is 9,47 mm (± 2,37), and average upper pharyngeal width of class II skeletal malocclusion group is 9,01 mm (± 2,04). Conclusion: Average upper pharyngeal width of class I skeletal malocclusion is 9,47 mm (± 2,37) and average upper pharyngeal width of class II skeletal malocclusion is 9,01 mm (± 2,04).

Prevalensi Maloklusi Dengan Etiologi Premature Loss Gigi Sulung Kajian pada Rekam Medik Ortodonti Pasien RSGM Fakultas Kedokteran Gigi Universitas Trisakti Tahun 2013-2015) Muthia Hanindira; Yuniar Zen; Magdalena Juliani
Jurnal Kedokteran Gigi Terpadu Vol. 2 No. 1 (2020): Jurnal Kedokteran Gigi Terpadu
Publisher : Fakultas Kedokteran Gigi Universitas Trisakti

Latar belakang: Premature loss merupakan suatu keadaan gigi sulung yang tanggal sebelum waktu erupsi gigi pengganti. Premature loss dapat mempengaruhi panjang lengkung rahang sehingga ruangan untuk erupsi gigi pengganti tidak akan cukup. Akibat ruangan yang tidak cukup akan berdampak pada penyimpangan oklusi seperti rotasi, gigi berjejal, mesial drifting yang dikenal sebagai maloklusi. Premature loss memiliki gambaran maloklusi yang berbeda beda tergantung pada jenis gigi yang mengalami tanggal, sehingga sering menjadi keluhan pasien ortodonti di RSGM FKG Universitas Trisakti. Tujuan: untuk mengetahui prevalensi premature loss pada pasien ortodonti di RSGM FKG Universitas Trisakti pada tahun 2013 – 2015. Metode: Penelitian observasional menggunakan data sekunder yaitu rekam medik dan model studi tahun 2013 – 2015 dengan menggunakan parameter usia, jenis gigi yang mengalami kehilangan, dan hubungan molar serta keadaan seluruh gigi pasien. Hasil: Sebanyak 52 sampel mengalami premature loss dengan rentang usia 6 – 10 tahun. Pada usia 6 tahun sebanyak 2 orang ((3,8%), usia 7 tahun 13 anak (25%), usia 8 tahun 19 anak (36,5%), usia 9 tahun 11 anak (21,2%), dan usia 10 tahun 7 anak (13,5%). Total jumlah gigi yang mengalami premature loss sebanyak 80 gigi dengan insisivus pertama sebanyak 17 gigi (21,25%), insisivus kedua 24 gigi (30%), kaninus 9 gigi (11,25%), molar pertama 10 gigi (12,5%) dan molar kedua 20 gigi (25%). Kesimpulan: Prevalensi premature loss pada pasien ortodonti di RSGM FKG Universitas Trisakti sebesar 18,5%.

Gambaran Profil Jaringan Lunak Wajah Menurut Holdaway Kajian terhadap pasien ortodonti Rumah Sakit Gigi dan Mulut Fakultas Kedokteran Gigi Universitas Trisakti (Penelitian) Sherly Betris; Yuniar Zen
Jurnal Kedokteran Gigi Terpadu Vol. 2 No. 2 (2020): Jurnal Kedokteran Gigi Terpadu
Publisher : Fakultas Kedokteran Gigi Universitas Trisakti

Background: The purpose of orthodontics treatment is to create the best balance among occlusal relationship, dental, and facial aesthetic, also the stability of the result. Facial profile analysis is one of proper method to precisely diagnose and decide an accurate treatment planning. Holdaway analysis considered as one of the most detailed because, Holdaway evaluate the entire facial profile. In general, malocclusion is associated with unaesthetic facial and dental appearances. So that, it becomes a main reason for patients to visit orthodontics clinic, especially to RSGM-FKG Usakti. Objective: To describe the average facial profile on orthodontics patient of RSGM-FKG Usakti using Holdaway’s method. Method: Observational research using cross sectional method to orthodontics patient of RSGM-FKG Usakti that came from January to December 2014. Eleven of Holdaway’s parameter was used as a measurement on sefalogram. The result of analytical line measurement collected in a tabulation of distribution-frequency. Result: Furthermore, The 11 measurements ; soft tissue facial angle, skeletal profile convexity, and H angle was convex. Sulcus labialis superior, lower lip to H line, and soft tissue chin thickness was ideal. Basic upper lip, upper lip strain, subnasal to H line and sulcus labialis inferior to H line was less ideal and prominence of small nose. Conclusion: The average facial profile on orthodontics patient of RSGM-FKG Usakti using Holdaway’s parameter is convex based on skeletal profile convexity and H angle.

Perbedaan Posisi Bibir Setelah Perawatan Ortodonti Dengan Ekstraksi Premolar Pertama Menggunakan Analisis Ricketts : Kajian pada Sefalogram Lateral di Klinik Ortodontis Bandung (Laporan Penelitian) Diandra Christina; Yuniar Zen
Jurnal Kedokteran Gigi Terpadu Vol. 3 No. 1 (2021): Jurnal Kedokteran Gigi Terpadu
Publisher : Fakultas Kedokteran Gigi Universitas Trisakti

Background: The difference in facial profile after orthodontic treatment is important in orthodontic treatment as one of the goals of orthodontic treatment is to improve facial esthetic. Convex facial profiles that require first premolar extraction are the most common complaints of orthodontic patients in Asia. This profile is characterized by an increased lip profile procumbency. Therefore, any difference in the position of the lips from before and after orthodontic treatment is needed to be evaluated. Some studies proved that there was a significant difference in lip position after orthodontic treatment with the extraction of the first premolar teeth. Ricketts analysis is widely used to determine clinical differences in lip position. Objective: To determine the difference in lip position after orthodontic treatment with extraction of the first premolar using Ricketts analysis. Methods: This study was observational analytic with a cross-sectional study design. The study was conducted on 30 samples of lateral cephalogram radiographs before and after treatment at Orthodontist Clinic Bandung. The difference in lip position after orthodontic treatment and extraction of the first premolar teeth was determined using the Ricketts analysis. The measurement results were statistically analyzed with paired T-tests. Result: There was a difference in the position of the upper and lower lips after orthodontic treatment with first premolar extraction with p <0.001. The distance of the upper and lower lips to the E-line after orthodontic treatment with first premolar extraction was different than before treatment. Conclusion: There is a significant difference of upper and lower lip position before and after orthodontic treatment with first premolar extraction.

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