ABSTRAKPenilaian secara visual pada abses periapikal pada radiograf periapikal, memiliki perbedaan interpretasi secara intra dan inter observer yang diakibatkan subjekti tas penilaian. Penilaian pada abses periapikal setelah perawatan endodontik secara visual umumnya dilihat dari berkurangnya ukuran abses periapikal. Pada penelitian ini pengukuran abses periapikal dilakukan dengan mengukur luas lesi, jumlah partikel, dan luas partikel pada radiograf setelah perawatan endodontik secara digital. Tujuan penelitian ini untuk mengetahui luas lesi, jumlah partikel dan luas partikel trabekula tulang setelah perawatan endodontik pada abses periapikal melalui digitalisasi radiograf periapikal menggunakan software ImageJ. Penelitian bersifat analisis observasional. Sampel diambil sebanyak masing-masing 31 radiograf sebelum dan setelah perawatan endodontik pasien dengan diagnosa abses periapikal di RSGM Universitas Padjadjaran Bandung. Radiograf di digitalisasi menggunakan software ImageJ untuk mendapatkan hasil luas lesi, jumlah partikel dan luas partikel abses periapikal. Hasil penelitian ditemukan bahwa dari 31 pasang radiograf sebelum dan setelah perawatan endodontik terdapat penurunan rata-rata luas lesi dari 12,44 ± 2,29 mm 2 menjadi 2,72 ± 1,86 mm 2 , peningkatan ratarata jumlah partikel dari 56,22 buah, menjadi 79,61 buah, peningkatan rata-rata luas partikel dari 8,93 ± 2,55 mm 2 , menjadi 11,42 ± 2,61 mm 2 . Simpulan penelitian ini adalah analisis radiograf abses periapikal menggunakan software imageJ ditemukan penurunan ukuran luas lesi, yang dipengaruhi oleh kenaikan jumlah partikel dan luas partikel setelah perawatan endodontik.Kata kunci: abses periapikal; digitalisasi radiograf periapikal; software imageJ ABSTRACT: Periapical abscess radiography analysis using imageJ after endodontics treatment. The visual assessment to measure the lesion of periapical abscesses on the radiograph interpretation has the distinction of periapical in intra observer and inter observer which caused by the subjectivity of observer. The assessment on abscess periapikal after endodontic treatment commonly has been seen visually from the reduced size of the lesion periapical abscess. On this research, the measurement of periapical abscesses lesion is done with measuring the number of particles, the extensive of lesions, and the extensive of particle on the radiograph after endodontic treatment on digitally. The purpose of this research is to knowing the extensive of lesions, the number of particles and the extensive particles of trabeculae bones after endodontic treatment on periapical abscess through digitization periapical radiograph using

ABSTRAKPenilaian tingkat keberhasilan perawatan endodontik pada gigi yang mengalami granuloma periapikal, saat ini masih menggunakan metoda konvensional yaitu dengan menggunakan viewer sebagai alat bantu dan diinterpretasi secara subjektif oleh dokter gigi. Keadaan ini mengakibatkan peluang terjadinya perbedaan penilaian cukup besar secara inter dan intra-observer. Tujuan dari penelitian ini adalah untuk mengetahui perbedaan gambaran dan hubungan nilai luas lesi, jumlah dan luas partikel trabekula pada kasus granuloma periapikal sebelum dan sesudah perawatan endodontik melalui digitalisasi radiograf periapikal menggunakan software ImageJ. Penelitian ini dilakukan dengan menggunakan metode analisis observasional. Sampel yang digunakan dalam penelitian ini terdiri dari 30 data sebelum perawatan endodontik dan 30 data sesudah perawatan endodontik yang telah dilakukan digitalisasi. Hasil penelitian ini adalah terjadi penurunan rata-rata luas lesi granuloma periapikal dari 16.400 ± 2.2924 mm 2 menjadi 13.860 ± 2.1250 mm 2 , peningkatan rata-rata jumlah partikel dari 70.167 ± 7.2258 menjadi 99.733 ± 7.4089 dan peningkatan luas partikel dari 14.033 ± 1.4452 mm 2 menjadi 19.017 ± 1.4223 mm 2 . Simpulan dari penelitian ini adalah terdapat perbedaan gambaran dan hubungan nilai luas lesi, jumlah dan luas partikel trabekula pada kasus granuloma periapikal sebelum dan sesudah perawatan endodontik melalui digitalisasi radiograf periapikal menggunakan software ImageJ.Kata kunci: digitalisasi radiograf periapikal; granuloma periapikal; software ImageJ ABSTRACT: Analysis of periapical radiographs using ImageJ software on periapical granuloma in endodontic treatment. The assessment of the success rate of endodontic treatment on teeth with periapical granuloma is currently still using the conventional method, that is using a viewer as the tool which is then interpreted subjectively by dentist. This may lead to the possibility of signi cant differences in the assessment between inter and intra-observers. The objective of this study was to demonstrate the differences in picture and the relationship of lesion size, and the number and size of trabecular particles on periapical granuloma cases before and after endodontic treatment with digitized periapical radiographs using ImageJ software. This study was conducted using observational analysis method.

Radiation therapy for head and neck cancer frequently caused severe salivary gland dysfunction. The salivary gland dysfunction possibly decreased the protective function of saliva and caused dental caries. The purpose of this study was to obtain an illustration about DMF-T index in patient undergoing radiation therapy with LINAC X-ray radiation for head and neck cancer at Department of Radiotherapy, Dr. Hasan Sadikin Hospital in January-February 2007. The study was a simple descriptive. The study was conducted on 7 males and 9 females undergoing radiation therapy with LINAC X-ray radiation for head and neck cancer. The ages of patient are between 37 years and 77 years. The severity of caries was measured by DMF-T index. DMF-T index in 16 patient undergoing radiation therapy with LINAC X-ray radiation for head and neck cancer at Dr. Hasan Sadikin Hospital is 10.6 as the result of this study. The conclusion of this study showed that the DMF-T index in 16 patient undergoing radiation therapy with LINAC X-ray radiation for head and neck cancer at Dr. Hasan Sadikin Hospital had very high grade based on WHO classification, which the value was over 6.6.

Introduction: Radiographic examination is needed to determine the diagnosis of pulp necrosis in addition to a clinical examination. Visual observation was limited in seeing the colour change degree and hence an effort taken by assessing the histogram value. The purpose of this study was to obtain the pulp chamber histogram pattern which reveals its grey scale value, trend, intensity average, histogram variation, and histograms maximum regional of interest (ROI) through digital periapical radiograph. Methods: This study was a descriptive study of the total of nine pulp chamber periapical radiograph data samples. The samples were divided into three groups, the 1 st group was the data taken prior to the tooth extraction, the 2 nd group was the data collected after the teeth extraction, and the 3 rd group was the data of priorly pulpless teeth. Results: There was a tendency of histogram graphic shifting to the left side, likely towards the radiolucent area on ROI of the pulp at the apical region, whilst histopathologically, a massive infiltration of a round PMN cells was found in the area. This finding supported the determination of pulp necrosis diagnose. Conclusion: The tooth with a pulp necrosis showed a tendency that led to radiolucency on periapical radiograph histogram, and histopathologic examination showed massive infiltration of a round PMN cells, thus supported the pulp necrosis diagnose.

Introduction: Environment and behaviour are the main factors affecting the health status of a human being. People living in high natural radiation exposure area (radon zone), which is as much as 85% of the air content, characterized by many presents of granite rocks. The village of Arjasari is an area with many granite rocks presence. The objective of this study was to determined the knowledge level of the elementary school students after education regarding natural background radiation and oral health care. Methods: The research was a descriptive survey research, with data sampling taken by using questionnaires towards as much as 150 elementary students. Previously, respondents were given first education regarding natural background radiation and oral health care. Instruments in this study using questionnaires that was tested for validation and reliabilities. Data analysis used was a descriptive survey technique processed by using computer program. Data was percentages of three rating categories, which were high, medium and low. Results: The results showed that the knowledge level of student regarding natural background radiation and oral health care. was as much as 14% in the high category; as much as 45% in the moderate category; and as much as 41% in the low category. Conclusion: Knowledge level of student after education about natural radiation and the effect of oral health was in the moderate category level.