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Abstrak :
ABSTRAK
Latar Belakang Pada penatalaksanaan fraktur maksilofasial secara internal fiksasi diperlukan pemasangan alat miniplate dan screw sampai terjadi penyembuhan tulang Magnesium memiliki potensi sebagai miniplate dan screw pada tulang rahang dengan syarat bersifat biokompatibel dan biodegradasi sehingga tidak diperlukan operasi kembali untuk pengambilan miniplate dan screw Proses equal channel angular pressing ECAP merupakan salah satu metode untuk mengontrol laju korosi logam magnesium dan meningkatkan sifat mekanisnya Untuk pembuatan desain miniplate dan screw dari magnesium ECAP dengan merujuk dari desain safety factor bahan titanium yang biasanya telah digunakan perlu disesuaikan dengan material properti magnesium agar dapat mencegah kerusakan Tujuan menganalisa perbandingan desain miniplate dan screw logam magnesium ECAP terhadap titanium Metode Untuk penelitian ini kami menggunakan metode finite elemen yaitu formulasi perpindahan untuk menghitung perpindahan komponen strain dan tekanan di bawah beban internal dan eksternal Kemudian desain miniplate dan screw dari magnesium ECAP dilakukan analisa simulasi pembebanan yang dianalisa menggunakan teori Von Misses Hasil Hasil desain miniplate dan screw magnesium ECAP yang diharapkan dapat digunakan pada penatalaksanaan fraktur maksilofasial telah dilakukan simulasi pembebanan dengan dilakukan analisa desain menggunakan teori Von Misses kemudian desain direkayasa untuk mengurangi stress yang diterima desain rekayasa magnesium ECAP dibuat menjadi dua tipe yaitu tipe 1 dengan menambah jumlah screw menjadi 8 screw dengan berat total miniplate dan screw sebesar 118 212 mg dan tipe ke 2 dengan merubah diameter head screw menjadi 2x lebih besar dari bentuk semula sehingga berat totalnya sebesar 169 414 mg Kesimpulan Desain alternatif miniplate dan screw magnesium ECAP tipe 1 dapat lebih efektif untuk digunakan pada penatalaksanaan fraktur maksilofasial ABSTRACT
Background In the internal fixation management of maxillofacial fractures the placement of miniplate and screw is necessary until bone repair takes place Magnesium has the potential as a miniplate and screw for the jaws with it rsquo s biocompatibility and biodegradability so that a follow up surgery to remove the miniplate and screw is not necessary The equal channel angular pressing ECAP process is a method to control the corrosion rate of magnesium and increase the mechanical properties In the making of miniplate and screw design from ECAP magnesium referring the safety factor of the titanium design that is already being used adjustments must be made with the characteristics of magnesium so damage can be avoided Objectives to analyze the comparison between magnesium ECAP miniplate and screw design against titanium Methods For this research we used the finite element method which is displacement formulation to calculate component movement strain and pressure under the internal and external load Afterwards the magnesium ECAP miniplate and screw design undergoes a loading simulation which is analyzed with the Von Misses theory Result Design of miniplate and screw magnesium ECAP which expected to be used in the management of maxillofacial fractures has been tested with the stress simulation using Von Misses theory then the design engineered to reduce stress received Engineering design of magnesium ECAP divided into two types type 1 by increasing the number of screw into 8 screws with a total weight miniplate and screws with a total weight miniplate and screw amounted to 118 212 mg and type 2 by changing the diameter of the head screw becomes large than its original shape so that the total weight of 169 414 mg Conclusion Design alternative of miniplate and screw magnesium ECAP type 1could be more effective to be used in the management of maxillofacial fracture ;Background In the internal fixation management of maxillofacial fractures the placement of miniplate and screw is necessary until bone repair takes place Magnesium has the potential as a miniplate and screw for the jaws with it rsquo s biocompatibility and biodegradability so that a follow up surgery to remove the miniplate and screw is not necessary The equal channel angular pressing ECAP process is a method to control the corrosion rate of magnesium and increase the mechanical properties In the making of miniplate and screw design from ECAP magnesium referring the safety factor of the titanium design that is already being used adjustments must be made with the characteristics of magnesium so damage can be avoided Objectives to analyze the comparison between magnesium ECAP miniplate and screw design against titanium Methods For this research we used the finite element method which is displacement formulation to calculate component movement strain and pressure under the internal and external load Afterwards the magnesium ECAP miniplate and screw design undergoes a loading simulation which is analyzed with the Von Misses theory Result Design of miniplate and screw magnesium ECAP which expected to be used in the management of maxillofacial fractures has been tested with the stress simulation using Von Misses theory then the design engineered to reduce stress received Engineering design of magnesium ECAP divided into two types type 1 by increasing the number of screw into 8 screws with a total weight miniplate and screws with a total weight miniplate and screw amounted to 118 212 mg and type 2 by changing the diameter of the head screw becomes large than its original shape so that the total weight of 169 414 mg Conclusion Design alternative of miniplate and screw magnesium ECAP type 1could be more effective to be used in the management of maxillofacial fracture ;Background In the internal fixation management of maxillofacial fractures the placement of miniplate and screw is necessary until bone repair takes place Magnesium has the potential as a miniplate and screw for the jaws with it rsquo s biocompatibility and biodegradability so that a follow up surgery to remove the miniplate and screw is not necessary The equal channel angular pressing ECAP process is a method to control the corrosion rate of magnesium and increase the mechanical properties In the making of miniplate and screw design from ECAP magnesium referring the safety factor of the titanium design that is already being used adjustments must be made with the characteristics of magnesium so damage can be avoided Objectives to analyze the comparison between magnesium ECAP miniplate and screw design against titanium Methods For this research we used the finite element method which is displacement formulation to calculate component movement strain and pressure under the internal and external load Afterwards the magnesium ECAP miniplate and screw design undergoes a loading simulation which is analyzed with the Von Misses theory Result Design of miniplate and screw magnesium ECAP which expected to be used in the management of maxillofacial fractures has been tested with the stress simulation using Von Misses theory then the design engineered to reduce stress received Engineering design of magnesium ECAP divided into two types type 1 by increasing the number of screw into 8 screws with a total weight miniplate and screws with a total weight miniplate and screw amounted to 118 212 mg and type 2 by changing the diameter of the head screw becomes large than its original shape so that the total weight of 169 414 mg Conclusion Design alternative of miniplate and screw magnesium ECAP type 1could be more effective to be used in the management of maxillofacial fracture

Abstrak :
ABSTRAK
Nama Isma Tria SavitriProgram Studi Pendidikan Dokter Gigi Spesialis Bedah MulutJudul Keakuratan Model 3 Dimensi Fused Deposition Modeling FDM Dibandingkan CT Scan 3 Dimensi pada Pengukuran Panjang Vertikal Ramus Mandibula Jarak Gonion Menton dan Gonial Angle Latar Belakang Rekonstruksi dan koreksi defek pada regio kraniomaksilofasial membutuhkan perencanaan pra operasi yang sangat matang Hal ini dikarenakan anatomi pada regio ini sangat kompleks melibatkan sistem sistem yang sensitif berdekatan dengan struktur anatomis vital serta mempengaruhi penampilan dan fungsional Dengan perkembangan teknologi di bidang Computed Tomography mampu menciptakan pendekatan perawatan yang baru serta memungkinkan untuk memperoleh model tulang tengkorak 3 Dimensi 3D menggunakan teknik solid free form fabrication SFF Tiap tahapan proses produksi berpotensi untuk terjadi error dan menghasilkan model akhir yang mengalami distorsi Tujuan Penelitian ini dilakukan untuk mengetahui keakuratan dari model 3D FDM dengan cara membandingkan panjang vertikal ramus mandibula jarak Gonion Menton dan gonial angle pada model 3D dengan pengukuran pada CT rekonstruksi 3D Metode Penelitian 8 Sampel data CT scan pasien Bedah Mulut dan Maksilofasial Fakultas Kedokteran Gigi Universitas Indonesia Rumah Sakit Cipto Mangunkusumo Jakarta dibuatkan model 3D menggunakan teknik FDM Kemudian dilakukan pengukuran panjang vertikal ramus mandibula jarak Gonion Menton dan gonial angle terhadap CT rekonstruksi 3D menggunakan piranti lunak OsiriX dan model 3D menggunakan kaliper digital dan goniometri lalu hasil keduanya dibandingkan Hasil Tidak terdapat perbedaan yang bermakna antara pengukuran panjang vertikal ramus mandibula jarak Gonion Menton dan gonial angle pada CT 3D dan model 3D FDM Kesimpulan Model 3D yang menggunakan teknik FDM dinilai akurat sehingga dapat diterima secara klinis Kata kunci Model 3D FDM CT 3D panjang vertikal ramus mandibula jarak Gonion Menton gonial angle. ABSTRACT
Name Isma Tria SavitriStudy Program Post Graduate Student of Oral and Maxillofacial SurgeryTitle Accuracy of Three Dimensional Fused Deposition Modeling FDM Models Compared with Three Dimensional CT Scans on Measurement of Mandibular Ramus Vertical Length Gonion Menton Length and Gonial Angle Background Pre surgical treatment planning plays important role in reconstruction and correction of defect in craniomaxillofacial region The advance of solid freeform fabrication techniques has significantly improved the ability to prepare biomodel using computer aided design and data from medical imaging Many factors are implicated in the accuracy of the 3D model Purpose To determine the accuracy of the three dimensional fused deposition modeling FDM models compared with three dimensional CT scans on measurement of mandibular ramus vertical length Gonion Menton length and Gonial angle Research Methods 8 3D Models were produced from 8 CT scan data DICOM file patients of Oral and Maxillofacial Department Fakultas Kedokteran Gigi Universitas Indonesia Rumah Sakit Cipto Mangunkusumo Three measurements were done three times by two examiner Measurement of 3D CT scans were made using OsiriX software while measurement of 3D models were made using digital caliper and goniometry The measurement results were then compared Result There is no significant difference between measurement of mandibular ramus vertical length Gonion Menton length and Gonial angle 3D CT scans and FDM 3D models Conclusion FDM 3D models are considered accurate and is acceptable for clinical applications in dental and craniomaxillofacial surgery.

Abstrak :
"ABSTRAK
" Insidensi trauma maksilofasial dipengaruhi oleh beberapa faktor seperti: budaya, latar belakang penduduk, ekonomi, dan kepadatan penduduk. Penelitian ini bertujuan untuk mengetahui insidensi kasus trauma maksilofasial yang terdapat di Rumah Sakit Umum Daerah Provinsi DKI Jakarta RSUD Tarakan, RSUD Koja, RSUD Cengkareng, RSUD Budhi Asih, RSUD Pasar Rebo, RSKD Duren Sawit, RSUD Kepulauan Seribu . Ditemukan 957 pasien trauma maksilofasial dan 138 fraktur maksilofasial yang dikelompokkan berdasarkan usia, jenis kelamin, penyebab dan lokasi fraktur. Kelompok usia 21-27 tahun adalah kelompok usia tertinggi dari trauma maksilofasial, jenis kelamin laki-laki 74,82 , Perempuan 25,18 dengan perbandingan 3:1. Penyebab trauma maksilofasial yang tertinggi adalah kecelakaan lalu lintas. "

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" "ABSTRACT
" Incidence of maxillofacial trauma affected by several factors culture, population background, economical status, and population density. This study aimed to determine the incidence of maxillofacial trauma occured in the General Hospital of DKI Jakarta RSUD Tarakan, RSUD Koja, RSUD Cengkareng, RSUD Budhi Asih, RSUD Pasar Rebo, RSKD Duren Sawit, RSUD Kepulauan Seribu . There is 957 patient with maxillofacial trauma cases and 138 patients with maxillofacial fractures cases by age, sex, cause and location of fracture. The age group of 21 27 years old is the highest group of maxillofacial trauma found, male 74.82 , 25.18 women with a ratio of 3 1. The cause of maxillofacial trauma were highest traffic accident.

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ABSTRAK
Latar Belakang: Impaksi Molar 3 rahang bawah telah diketahui akan meningkatkan resiko fraktur tulang mandibula terutama di daerah angulus mandibula. Fraktur angulus mandibula sering terjadi akibat kecelakaan lalu lintas di Indonesia. Masyarakat belum mengetahui pentingnya odontektomi sebagai langkah awal pencegahan fraktur angulus mandibula.Tujuan: Untuk mengetahui apakah terdapat hubungan dari adanya fraktur angulus mandibula dengan adanya impaksi molar 3 rahang bawah.Material dan Metode: Rekam medis pasien poli Bedah Mulut dan Maksilofasial Rumah Sakit Umum kabupaten Tangerang selama periode Januari 2013-Desember 2017 dikumpulkan dan didapatkan 41 orang dengan fraktur angulus mandibula. Setiap sampel diidentifikasi adanya fraktur angulus mandibula, adanya impaksi molar 3 rahang bawah, posisi erupsi impaksi molar 3 dan kelas impaksi menurut Pell dan Gregory. Data diolah dengan uji Chi Square dan Kolmogorov Smirnov, serta ditentukan Odd Ratio. Uji hipotesis korelatif dilakukan dengan Uji Contingency Coeficient, Phi ? ? ?, Cramer rsquo;s V, dan Kendall rsquo;s Tau-b.Kesimpulan: Ditemukan hubungan antara terjadinya fraktur angulus mandibula dengan adanya impaksi molar 3 bawah mandibula dengan p = 0,01 p < 0,05 dengan Odd Ratio = 4,615; memiliki hubungan korelatif dengan p = 0,010 p < 0,05 dengan kekuatan r = 0,272 lemah . Tidak ditemukan hubungan bermakna antara fraktur angulus mandibula dengan posisi erupsi Suprabony,Infrabony p=0,375 p>0,05 . Tidak ditemukan hubungan bermakna antara fraktur angulus mandibula dengan kelas impaksi menurut Pell dan Gregory p=0,087, p>0,05 .Tidak ditemukan hubungan bermakna antara fraktur angulus mandibula dengan Jenis Kelamin p=0,763 p>0,05 . Tidak ditemukan hubungan bermakna antara fraktur angulus mandibula dengan Usia p=1,000 p>0,05. ABSTRACT
Background: Impacted third molar of mandibula have been studied to have a role in increasing mandible fracture especially in the mandibular angle region. Mandibular angle fractures are often the result of traffic accidents in Indonesia. People do not yet know the importance of odontectomy as a first step to prevent fracture of the mandibular angle.Objective: To determine whether there is association or correlation of the presence of angular fracture in the presence of lower third molar impaction.Materials and Methods: Medical records of patients with Oral and Maxillofacial Surgery of Tangerang District General Hospital during the period of January 2013-December 2017 were collected and obtained 41 people with mandibular angle fractures. Each sample identified an mandibular angle fracture, a lower third molar impaction, third molar impaction eruption position and an impaction class according to Pell and Gregory. The data were processed by Chi Square and Kolmogorov Smirnov, and Odd Ratio was determined. Test the correlative hypothesis with Contingency Coefficient, Phy ? ? ?, Cramer rsquo;s V, and Kendall Tau B test.Conclusion: There was found a association between the presence of mandibular angle fracture in the presence of mandibula lower 3 molar impaction with p = 0,01 p 0,05 . There was no significant association between mandibular angle fracture and Gender p = 0,763 p> 0,05 . There was no significant association between mandibular angle fracture and Age p = 1,000 p> 0,05