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"Latar belakang: Prevalensi penyakit osteoporosis di Indonesia tergolong cukup tinggi seiring bertambahnya usia. Berdasarkan hasil Data dan Informasi Kementrian Kesehatan RI (InfoDATIN 2015) mengenai penyakit osteoporosis di Indonesia, tertera bahwa proporsi penderita osteoporosis berusia lebih dari 50 tahun pada wanita mencapai 32,3% dan 28,8% pada pria. Usia lanjut sangat jelas dapat dijadikan sebagai faktor risiko terhadap terjadinya osteoporosis. Didukung pula dengan minimnya pola hidup sehat baik itu olahraga maupun asupan nutrisi tulang dari konsumsi susu masyarakat Indonesia. Hal ini memicu terjadinya porositas bahkan hingga fraktur dini terhadap tulang yang dapat dicegah salah satunya melalui metode deteksi dini Panoramic Mandibular Index (PMI).Tujuan: Memperoleh data rerata rasio ketebalan tulang kortikal pada subjek wanita usia 31-75 tahun secara radiografis pada panoramik berdasarkan metode PMI.Metode: Pengukuran PMI menggunakan sampel radiograf panoramik wanita sebanyak 225. Dibagi menjadi tiga kategori dengan interval 15 tahun, yaitu kategori 1 dengan rentang usia 31-45 tahun, kategori 2 yaitu 46-60 tahun, dan kategori 3 yaitu 61-75 tahun. PMI diukur berdasarkan rasio ketebalan kortikal mandibula terhadap jarak antara margin superior atau inferior foramen mental dan margin inferior dari korteks mandibula. Hasil: Diperoleh rerata dan standar deviasi pada kategori 1 sebesar 0,30±0,032, kategori 2 sebesar 0,28±0,042, dan kategori 3 sebesar 0,24±0,063. Berdasarkan hasil analisis Uji ANOVA, didapatkan perbedaan signifikan antar kategori (p<0,05). Selain itu, berdasarkan hasil pengukuran yang didapatkan, secara statistik pengukuran PMI menunjukkan penurunan seiring dengan pertambahan usia dalam interval usia 15 tahun.Kesimpulan: Nilai PMI menurun seiring dengan pertambahan usia dan secara statistik terdapat perbedaan bermakna diantara kategori usia.

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Background: Prevalence of osteoporosis in Indonesia is quite high with age. Based on the results of Information from Ministry of Health of the Republic of Indonesia (InfoDATIN 2015) regarding the conditions of osteoporosis in Indonesia, it was stated that the proportion of osteoporosis patients aged more than 50 years in women reached 32.3% and 28.8% in men. Old age can clearly be used as a risk factor for osteoporosis. Also supported by the lack of a healthy lifestyle such as physical exercise and bone nutrition intake from milk consumption of Indonesian people. This certainly will trigger the occurrence of porosity even to the early fracture of bone, which one of them can be prevented through the early detection method of the Panoramic Mandibular Index (PMI).

Objective: To obtain data on mean cortical bone thickness ratio in female subjects aged 31-75 years radiographically on panoramic based on the PMI method.

Method: A total of 225 female panoramic radiograph samples were selected and divided into three categories with 15-year intervals, namely category 1 with an age range of 31-45 years, category 2 is 46-60 years, and category 3 is 61-75 years. PMI is measured based on the ratio of the mandibular cortical thickness to the distance between the superior or inferior margins of the mental foramen and the inferior margins of the mandibular cortex.

Results: The mean and standard deviation obtained in category 1 was 0.30±0.032, category 2 was 0.28±0.042, and category 3 was 0.24±0.063. Based on the one-way ANOVA analysis test result, there were significant differences between categories p<0.05. In addition, based on the results of measurements obtained, statistically PMI measurements show a decrease with age in the 15 year age interval.

Conclusion: PMI values ​​decrease with age and statistically there are significant differences between age categories."

"Latar Belakang: Inferior Alveolar Nerve Block (IANB) merupakan prosedur paling umum dalam praktik kedokteran gigi, dan menjadi salah satu insiden kegagalan tertinggi dibanding teknik anestesi lain hingga 15-20%. Salah satu penyebab umum terjadinya kegagalan blok IANB karena tidak tepatnya dalam menentukan letak foramen mandibula. Letak foramen mandibula memiliki tiga kategori, yaitu di atas garis oklusal, segaris oklusal, dan di bawah garis oklusal. Variasi letak foramen mandibula tersebut dipengaruhi oleh faktor ras dan jenis kelamin. Mengetahui letak dan rerata jarak foramen mandibula yang tepat diperlukan untuk menghindari terjadinya kegagalan anestesi sebelum tindaklanjut tindakan medis.

Tujuan: mengetahui kategori letak dan membandingkan rerata jarak foramen mandibula pada kelompok pria dan wanita usia 18-35 tahun di RSKGM FKG UI.

Metode: Studi dilakukan pada 200 radiograf panoramik digital yang dibagi menjadi kelompok pria dan wanita berusia 18-35 tahun di RSKGM FKG UI. Dilakukan dengan membuat garis bidang oklusal sejajar horizontal pada distolingual cusp molar 1 atau molar 2 di kedua sisi rahang, lalu tarik garis pada bagian superior anterior kanal mandibula tegak lurus ke garis oklusal dan anterior ramus. Kemudian dilakukan uji reliabilitas intraobserver dan interobserver dengan uji ICC dan uji komparatif independent t-test.

Hasil: Diperoleh rerata jarak foramen mandibula terhadap garis bidang oklusal pada kelompok pria (15,49  3,29) dan pada wanita (14,68  3,07). Rerata jarak foramen mandibula terhadap anterior ramus pada kelompok pria (14,61  3,29) dan pada wanita (13,63  3,07).

Kesimpulan: Terdapat perbedaan signifikan rerata jarak foramen mandibula terhadap anterior ramus, tetapi tidak terdapat perbedaan rerata jarak foramen mandibula terhadap garis bidang oklusal pada pria usia 18-25 tahun dan wanita usia 18-35 tahun di RSKGM FKG UI.

Background: Inferior Alveolar Nerve Block (IANB) is the most common procedure in dental practice, and has become one of the highest failures compared to other anesthetic techniques up to 15-20%. One of the the common causes of the failure in IANB Block is due to the inaccuracy in determining the location of mandible foramen. There are 3 categories of the location of mandible foramen - above the oclusal line, in line with the oclusal, below the oclusal line. The variety of the mandible foramen location is affected by races and gender. To acknowledge the accurate location and the average distance of mandible foramen is necessary in order to avoid the failure of anesthesia before undergoing the later medical treatment.

Aim: To acknowledge the category of the location and to compare the average of the distance of mandible foramen on male and female patients aged 18-35 in RSKGM FKG UI.

Methode: The study or research is carried out on 200 Digital Panoramic Radiography divided into male group of aged 18-35 and female group of aged 18-35. The measurement is conducted by drawing the lines of oclusal horizontally in line on distolingual cusp first molar or second molar in both sides of jaw, then drawing the line on anterior superior of mandible canal perpendicular line to oclusal line and ramus anterior. Finally, intraobserver and interobserver reliability tests by ICC test and t-test independent comparative are applied.

Result: The average distance of mandible to the occlusal plane on male group is (15,49  3,29), on female group is (14,68  3,07). The average distance of mandibule to the ramus anterior on male group is (14,61  3,29), on female group is (13,63  3,07).

Conclusion : There is significant distinction on the distance of mandible foramen to the ramus anterior, but there is no difference on the distance of mandibular foramen to the occlusal plane between male aged 18-35 and on female aged 18-35 in RSKGM FKG UI."