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Abstrak :
Penelitian ini bertujuan untuk mengevaluasi pengaruh durasi penyinaran dengan LED terhadap kebocoran tepi mikro restorasi resin komposit bulk-fill. Tiga puluh gigi premolar dipreparasi pada permukaan oklusal dengan panjang 4 mm, lebar 3 mm, dan kedalaman 4 mm yang disesuaikan dengan anatomi masing-masing gigi. Spesimen dibagi menjadi tiga kelompok secara acak berdasarkan durasi penyinaran 10 detik, 20 detik, dan 30 detik. Pengukuran kebocoran tepi mikro dilakukan menggunakan metode penetrasi zat warna, larutan methylene blue 1. Data yang diperoleh dianalisis menggunakan uji statistik Kruskal-Wallis. Hasil analisis tidak menunjukan perbedaan bermakna p>0,05 pada semua kelompok. Durasi penyinaran tidak memberikan pengaruh yang signifikan terhadap kebocoran tepi mikro restorasi resin komposit bulk-fill. ......This aims to evaluate the influence of different exposure time on its microleakage. Cavity preparation was perfomed on the occlusal side of thirty human premolar teeth with 4 mm length, 3 mm width, and 4 mm depth. Specimen were randomly divide into three groups according to exposure times 10s, 20s, and 30s. The microleakage was measured using 1 methylene blue. Data were statistically analyzed by Kruskal Wallis. The result showed insignificant differences in all groups p 0,05. Exposure times was not significantly affected the microleakage of bulk fill composite resin restoration.

Abstrak :
Latar Belakang: Mobilitas gigi atau kegoyangan gigi dapat disebabkan oleh kekuatan oklusal yang melebihi batas fisiologis periodonsium. Ketika gigi beroklusi akan menghasilkan kekuatan oklusal. Terdapat tiga tipe oklusi saat gerakan lateral mandibula, yaitu oklusi seimbang, group function, dan cuspid protected. Tujuan: Mengetahui hubungan antara oklusi seimbang, group function, dan cuspid protected dengan mobilitas gigi; dan mengetahui tipe oklusi yang banyak menyebabkan mobilitas gigi. Metode: Penelitian analitik observasional dengan rancangan cross-sectional. Subjek penelitian adalah mahasiswa program akademik FKG UI angkatan 2005-2008 yang berusia 17-23 tahun sebanyak 78 orang yang diambil secara purposive sampling. Analisis statistik secara univariat berupa distribusi masing-masing variabel, dan secara bivariat berupa uji Fisher. Hasil: Uji Fisher menunjukkan tidak terdapat hubungan antara oklusi seimbang, group function, dan cuspid protected dengan mobilitas gigi (p > 0,05). Statistik deskriptif belum dapat membuktikan tipe oklusi yang banyak menyebabkan mobilitas gigi. Kesimpulan: Tidak terdapat hubungan antara oklusi seimbang, group function, dan cuspid protected dengan mobilitas gigi pada mahasiswa program akademik Fakultas Kedokteran Gigi Universitas Indonesia Angkatan 2005-2008. Dan tidak dapat membuktikan bahwa oklusi seimbang banyak menyebabkan mobilitas gigi.

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Background: Tooth mobility or tooth looseness can result from occlusal forces which overload the limit of periodontal physiologic. When teeth occlude, it will result in occlusal forces. There are three types of occlusion during lateral movement of the mandible; balanced occlusion, group function, and cuspid protected. Objective: To identify the relationship between balanced occlusion, group function, and cuspid protected with the tooth mobility; and to identify the type of occlusion which is the most causing the tooth mobility. Method: This research is observational analysis using cross-sectional study. The subjects are 78 preclinical dental students from University of Indonesia Class 2005-2008, aged 17-23 years old which were taken by purposive sampling. Univariate statistical analysis is distribution of each variables, and bivariate statistical analysis is using Fisher test. Result: Fisher test showed that there was no relationship between balanced occlusion, group function, and cuspid protected with the tooth mobility (p > 0,05). Descriptive statistic was not able to prove the type of occlusion which is the most causing the tooth mobility. Conclusion: There was no relationship between balanced occlusion, group function, and cuspid protected with the tooth mobility on preclinical dental student from University of Indonesia Class 2005-2008. And, there is no evidence that balanced occlusion is the most causing the tooth mobility.

Abstrak :
Latar Belakang: Keausan gigi adalah kehilangan struktur gigi yang terjadi bukan karena proses karies. Salah satu tipe keausan gigi yaitu atrisi. Atrisi terjadi akibat adanya kontak gigi ke gigi (oklusi) seperti saat mastikasi. Terdapat tiga tipe oklusi saat gerakan lateral mandibula yaitu oklusi seimbang, group function, dan cuspid protected. Tujuan: Mengetahui hubungan antara oklusi seimbang, group function, dan cuspid protected dengan keausan gigi dan mengetahui tipe oklusi yang banyak menyebabkan keausan gigi. Metode: Penelitian analitik observasional dengan rancangan cross sectional. Subjek penelitian adalah 78 mahasiswa program akademik FKG UI angkatan 2005-2008 yang berusia 17-23 tahun yang diambil secara purposive sampling. Analisis statistik secara univariat berupa distribusi masing-masing variabel dan secara bivariat berupa uji Fisher. Hasil: Uji Fisher menunjukkan tidak terdapat hubungan antara oklusi seimbang, group function, dan cuspid protected dengan keausan gigi (p > 0,05). Statistik deskriptif belum dapat membuktikan tipe oklusi yang banyak menyebabkan keausan gigi. Kesimpulan: Tidak terdapat hubungan antara oklusi seimbang, group function, dan cuspid protected dengan keausan gigi pada mahasiswa program akademik Fakultas Kedokteran Gigi Universitas Indonesia angkatan 2005-2008. Dan tidak dapat membuktikan bahwa oklusi seimbang banyak menyebabkan keausan gigi.

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Background: Tooth wear is the non-carious loss of tooth structure. One of the type of the tooth wear is attrition. The attrition results from tooth to tooth contact (occlusion) such as during mastication. There are three types of occlusion during lateral movement of the mandible are balanced occlusion, group function, and cuspid rotected. Objective: To identify the relationship between balanced occlusion, group function, and cuspid protected with the tooth wear and to identify the type of occlusion which is the most causing the tooth wear. Method: This research is observational analysis using cross-sectional study. The subjects are 78 preclinical dental students from University of Indonesia Class 2005-2008, aged 17-23 years old which were taken by purposive sampling. Univariate statistical analysis is distribution of each variables and bivariate statistical analysis is using Fisher test. Result: Fisher test showed that there was no relationship between balanced occlusion, group function, and cuspid protected with the tooth wear (p > 0,05). Descriptive statistic was not been able to prove the type of occlusion which is the most causing the tooth wear. Conclusion: There was no relationship between balanced occlusion, group function, and cuspid protected with tooth wear on preclinical dental student from University of Indonesia Class 2005-2008. And, there is no evidence that balanced occlusion is the most causing the tooth wear.

Abstrak :
Latar belakang masalah : Oklusi merupakan salah satu faktor penting yang dipertimbangkan dalam konstruksi gigi tiruan. Oleh karena itu perlu diperhatikan hubungan gigi geligi yang terjadi selama posisi sentrik dan eksentrik. Ada tiga hubungan gigi geligi saat gerakan excursive dan fungsional mandibula, yaitu oklusi seimbang, group function dan cuspid protected. Tujuan : Penelitian ini dilakukan dengan tujuan untuk memperoleh data distribusi frekuensi ketiga tipe oklusi tersebut pada mahasiswa program akademik Fakultas Kedokteran Gigi Universitas Indonesia tahun 2005-2008 yang dilakukan pada bulan Oktober sampai November 2008 di FKG UI. Metode : Desain penelitian ini bersifat deskriptif dengan jumlah subjek sebanyak 78 orang yang diambil secara purposive sampling, berusia 17-23 tahun, yang terdiri dari 68 wanita dan 10 pria. Penilaian tipe oklusi subjek dilakukan secara visual. Hasil : Dari 78 subjek, diperoleh 4 subjek (5%) memiliki tipe oklusi seimbang, 66 subjek (85%) memiliki tipe group function, 3 subjek (4%) memiliki tipe cuspid protected, dan 5 subjek (6%) tidak termasuk ke dalam ketiga tipe oklusi tersebut. Kesimpulan : Mahasiswa program akademik Fakultas Kedokteran Gigi Universitas Indonesia tahun 2005- 2008 dengan tipe oklusi group function memiliki jumlah paling banyak yaitu lebih dari setengahnya, diikuti dengan tipe oklusi seimbang dan cuspid protected.

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Background : Occlusion is one of the important factor to be considered in denture construction. Thus, it requires to understand the relationship of the teeth in centric and eccentric positions. There are three types of the relationship of the teeth on functional and excursive movement : balanced occlusion, group function and cuspid protected. Objective : This study was done to collect the data of distribution three types of occlusions on preclinical dental students of University of Indonesia, on October until November 2008 in Faculty of Dentistry. Method : The study design was descriptively on 78 subjects aged 17-23 years old, consists of 68 female and 10 male, which was taken by purposive sampling. The type of occlusion was assessed visually. Result : From 78 subjects, 4 subjects (5%) had balanced occlusion, 66 subjects (85%) had group function occlusion, 3 subjects (4%) had cuspid protected occlusion, and the rest which not included to those types of occlusion was 5 subjects (6%). Conclusion : The majority type of occlusions on preclinical dental students of University of Indonesia class 2005- 2008 was group function, followed by balanced occlusion and cuspid protected.

Abstrak :
Current guidelines for the management of patients with acute coronary syndromes (ACSs) focus on the electrocardiogram to divide patients into ST-elevation acute myocardial infarction (STEMI) or non-ST-elevation acute myocardial infarction (NSTEMI)/unstable angina (UA). Patients with STEMI in the earliest time will receive reperfusion therapy to destruct occlusive thrombus. An ST segment elevation is the sine qua non for diagnosing acute total coronary occlusion causing transmural myocardial infarction. Left circumflex coronary artery (LCx) occlusion is often categorized as NSTEMI because of the absence of significant ST-elevation on the 12 lead standard electrocardiogram. An ST segment elevation is presented in fewer than 50% of patients with LCx total occlusion, such that the reperfusion therapy is delayed. We reported a 77 years old woman whom being diagnosed with NSTEMI because a 12 lead electrocardiogram showed ST segment depression in lead V2-V5. On coronary angiography, we found a total occlusion in the LCx artery as the culprit lession.

Abstrak :
Occlusal vertical dimension of full denture's patient should be determined correctly to achieve an optimal result in function including aesthetic aspect of the denture. Differences of occlusal vertikal dimension may influence the strength of musculus masseter and temporalis contraction. Electromyography could showed isometric contraction of both musculus. The aim of this study was to evaluate the influence of different occlusal vertikal dimension to the contraction of both musculus. Denture base: occlusal rims and Electromyography. Neuropack MEM-7132 K (NIHON-KOHDEN) with evaluation program software Lab View 4.1. were used. A quasi experiment was done on patient chosen at Prosthodontics Clinics Faculty of Dentistry University of Indonesia age range from 50-72 years old who need full denture. Occlusal vertical dimension was determined contraction of musculus masseter and temporalis were measured using EMG. Data were analysed using One Way (ANOVA) with 95% different or p<0.05. The result showed that at the proper occlusal vertical dimension, the strength of the musculus masseter and temporalis was the highest in the comparison to the higher and lower occlusal vertical dimension. It can be concluded that occlusal vertical dimension has significant influence to muscle contraction especially musculus masseter superficial and musculus temporalis anterior.

Abstrak :
Pola grinding oklusal selama sleep bruxism dan kelainan temporomandibular. Sleep Bruxism merupakan salah satu etiologi terjadinya temporomandibular disorder (TMD), dan menyebabkan banyak kelainan di rongga mulut seperti keausan gigi atau faset. Namun, hingga kini belum ada penelitian tentang hubungan antara sleep bruxism dan TMD. Tujuan: Untuk mengetahui apakah ada hubungan antara pola grinding oklusal selama sleep bruxism dan kelainan temporomandibular. Metode: Penelitian cross-sectional dilakukan melibatkan 30 pasien yang diduga mengalami sleep bruxism yang datang ke Rumah Sakit Pendidikan Fakultas Kedokteran Gigi Universitas Indonesia (FKG UI RSGMP). Mereka mengisi 2 kuesioner, yaitu kuesioener berisi indeks ID-TMD dan kuesioner dari American Academy of Sleep Medicine. BruxChecker dibuat sesuai untuk masing-masing pasien, kemudian digunakan selama dua malam untuk merekam pola grinding oklusal. Pola grinding oklusal dikategorikan menjadi sisi laterotrusive grinding (LG) dan sisi mediotrusive. Selanjutnya, LG dibagi menjadi tiga klasifikasi: gigi insisif-kaninus (IC), gigi insisif-kaninus-premolar (ICP) dan gigi insisif-kaninus-premolar-molar (ICPM). Sisi Mediotrusive diklasifikasikan sebagai kontak mediotrusive (MC) dan mediotrusive grinding (MG). Hasil: Ditemukan bahwa pola grinding oklusal pada subjek tidak TMD adalah IC + MC, subjek dengan TMD ringan adalah ICP + MG, dan subjek dengan TMD moderat adalah ICP + MG dan ICPM + MG. Pola grinding ICP dan ICPM mempengaruhi TMJ lebih signifikan dibandingkan dengan pola grinding IC. Simpulan: Terdapat hubungan yang bermakna antara pola grinding oklusal selama sleep bruxism dan TMD.

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Sleep Bruxism is a significant etiology of temporomandibular disorder (TMD) and causes many dental or oral problems such as tooth wear or facet. There is no study analyzing the relationship between sleep bruxism and TMD. Objective: To investigate any relationship between occlusal grinding pattern during sleep bruxism and temporomandibular disorder. Methods: A cross-sectional study involving 30 sleep bruxism patients attended the Faculty Dentistry Universitas Indonesia Teaching Hospital (RSGMP FKG UI). Completion of 2 forms of ID-TMD index and questionnaire from American Academy of Sleep Medicine were done. BruxChecker was fabricated and used for two nights to record the occlusal grinding pattern. The occlusal grinding pattern was categorized into laterotrusive grinding (LG) and mediotrusive side. Further divisons of LG were: incisor-canine (IC), incisor-caninepremolar (ICP) and incisor-canine-premolar-molar (ICPM). Mediotrusive side was classified as mediotrusive contact (MC) and mediotrusive grinding (MG). Results: It was found that occlusal grinding pattern in non-TMD subjects were IC+MC, in subjects with mild TMD were ICP+MG and in subjects with moderate TMD were ICP+MG and ICPM+MG. TMJ was more significantly affected by ICP and ICPM grinding pattern than that of IC. Conclusion: There was a significant relationship between occlusal grinding pattern during sleep bruxism and TMD.