Hasil Pencarian  ::  Simpan CSV :: Kembali

"Densitas tulang adalah jumlah kandungan mineral per cm2 tulang, dibedakan menjadi 3 yaitu normal, osteopenia, dan osteoporosis. Penelitian ini dilakukan untuk mengetahui risiko kegoyangan gigi melalui analisis densitas tulang. Diasumsikan bahwa densitas tulang rendah yang berhubungan dengan osteopenia/osteoporosis dapat berpengaruh secara langsung pada mikroarsitektur tulang alveolar, dan menyebabkan kegoyangan gigi. Subjek terdiri dari 22 pria dan 56 wanita berusia ≥ 50 tahun. Pengukuran densitas tulang mandibula dilakukan dengan radiograf panoramik dan periapikal DDIR (direct digital intraoral radiograph). Pengukuran densitas tulang skeletal dilakukan dengan QUS (Quantitative Ultrasound). Hasilnya menunjukkan adanya hubungan antara kebersihan mulut dan densitas tulang skeletal dengan kegoyangan gigi (p= 0,000, p=0,035, berturut-turut) serta diperoleh indeks perkiraan kegoyangan ≥50% dari seluruh gigi di mandibula.

---

Bone mineral density is the amount of bone mineral content in cm2. It can be classified into normal, osteopenia, and osteoporosis. This study was conducted to determine the risk assessment of tooth mobility through bone density analysis. Low bone density, which is associated with osteopenia / osteoporosis can affect directly the alveolar bone microarchitecture, and cause tooth mobility. The subjects consisting of 22 men and 56 women aged ≥ 50 years. Mandibular bone density measurements done by panoramic radiographs and periapical DDIR (direct digital intraoral radiograph). Bone mineral density measurement was performed with QUS (Quantitative Ultrasound). The result showed that there is a relationship between oral hygiene and bone mineral density with tooth mobility (p = 0.000, p = 0.035, respectively) and an index was formulated to estimate mobility of ≥ 50% out of teeth in mandible."

"[ABSTRAKLatar Belakang: Penggunaan biomaterial berupa bahan tandur tulang dan membran untuk prosedur Guided Bone Regeneration (GBR) sangat diperlukan di bidang bedah maksilofasial dan, untuk mengatasi defek tulang yang dapat terjadi oleh berbagai sebab. Penelitian ini bertujuan untuk mengetahui efek pemakaian bahan tandur tulang DFDBX dengan membran perikardium (MPK) bovine pada defek tulang kalvaria tikus.Bahan dan Metode: Studi eksperimental ini menggunakan 45 ekor tikus Sprague Dawley sebagai hewan coba dibagi dalam 3 kelompok secara acak. Ciritical size defect sebesar diameter 5 mm dibuat pada tulang kalvaria seluruh hewan coba. Kelompok I merupakan kelompok kontrol, tidak diberikan perlakuan dan defek dibiarkan sembuh dengan sendirinya, kelompok II yang diberi DFDBX, dan pada kelompok III defek diisi dengan DFDBX dan ditutup dengan MPK (DFDBX+MPK). Setelah 1,4 dan 8 minggu dilakukan dilakukan pengorbanan pada kelompok hewan coba, dilanjutkan dengan evaluasi secara radiologik, histopatologik untuk reaksi radang, pertumbuhan tulang dan pemeriksaan imunohistokimia dengan osteokalsin. Data dianalisis secara statistik dengan menggunakan uji ANOVA.Hasil: Penilaian radiografik diperoleh perbedaan bermakna pada rerata densitas area defek minggu ke 8 antara kelompok kontrol dengan DFDBX+MPK (p<0,001) dan antara kelompok DFDBX dengan DFDBX+MPK (p=0,03).Pertumbuhan tulang baru pada minggu ke 8 tertinggi adalah pada kelompok DFDBX+MPK dengan perbedaan bermakna dengan kelompok kontrol (p=0,016) dan dengan kelompok DFDBX nilai p=0,048. Ekspresi osteokalsin minggu ke-8 menunjukkan perbedaan bermakna antara kelompok kontrol dengan kelompok DFDBX (p<0,001) maupun dengan kelompok DFDBX+MPK (p=0,0013), namun tidak terdapat perbedaan bermakna antara kelompok DFDBX dengan kelompok MPK (p=1,000).Kesimpulan: Penggunaan DFDBX dengan kombinasi MPK terbukti secara radiologik, histopatologik dan imunohistokimia dapat meningkatkan regenerasi tulang pada defek tulang kalvaria.

---

ABSTRACTBackground: Reconstruction of cranial and maxillofacial defects is a challenging task. The standard method has included bone grafting and using membrane in guided bone regeneration procedure. Using biomaterial such as bone grafting and membrane for Guided Bone Regeneration (GBR) procedures is an essential issue in maxillofacial and dental reconstruction surgery to overcome bone defects caused by various etiologies. Our study was aimed to identify the effect of using Demineralized Freeze-Dried Bone Xenograft (DFDBX) with (or without) bovine pericardium membrane (PCM) on the treatment of rats calvarial bone defects.Materials and Method: The experimental study used 45 Sprague-Dawley rats as the experimental animals, which were categorized randomly into three groups, i.e. the control group, DFDBX group, and DFDBX+PCM group. The 5-mm-critical-sized calvarial defects were created in all experimental animals. The first group was a control group, which did not receive any treatment with self-limiting defects; while subjects in the second group received DFDBX (DFDBX group) and in the third group, the defects were filled with DFDBX and PCM (DFDBX + PCM group). Animals were sacrified at the 1st, 4th, and 8th weeks following the surgery. Subsequently, an evaluation was carried out using radiological analysis, histopathological assay to observe inflammatory reaction and bone growth, as well as immunohistochemical analysis of osteocalcin. Data were analyzed statistically using ANOVA test. The specimens were embedded ini paraffin, serially cut, and stained with hematoxylin and eosin for analysis under light microscope. The inflammation reaction, new bone formation, and the rest of DFDBX and PCM were histomorphometrically evaluated. Immunohistochemical analysis of osteocalcin expression was performed.Results: Radiological analysis demonstrated a significant difference of mean bone density in the defect area at the 8th week between subjects in the control group and those in DFDBX+PCM group (p < 0.001), as well as between subjects in the DFDBX group and those in DFDBX+PCM group (p = 0.03). The highest rate of bone healing at the 8th week was found in DFDBX+PCM group, which showed significant difference compared to the control group (p=0.016) and to DFDBX group (p=0.048). There was a significant difference of osteocalcin expression between the control group and DFDBX group (p < 0.001), as well as between the control group and DFDBX + PCM group (p=0,0013). However, there was no significant difference between the DFDBX group and the DFDBX+PCM group (p = 1.000). Conclusion: Our radiological, histopahtological and immunohistochemical evaluation has demonstrated that DFDBX combined with PCM increases bone regeneration in the treatment of bone calvarial defect. ;Background :Reconstruction of cranial and maxillofacial defects is a challenging task. The standard method has been bone grafting and using membrane in guided boneregeneration procedure.The aim of this study was to analyze the effect of Demineralized Freeze Dried BoneXenograft (DFDBX) with (or without)bovine pericardium membrane (PCM) on boneregeneration, in surgically created critical-size defects in rat calvaria, radiographically,histopathologically and immunohistochemically.Material and Methods :Surgical critical-size bone defects were created in 45 animalsthat randomly divided into three groups : control group, DFDBX group, andDFDBX+PCM group. Animals were sacrified at 1, 4 and 8 weeks post surgery.Radiological analysis was done. The specimens were embedded ini paraffin, serially cut,and stained with hematoxylin and eosin for analysis under light microscope. Theinflammation reaction, new bone formation, and the rest of DFDBX and PCM werehistomorphometrically evaluated. Immunohistochemical analysis of osteocalcinexpression was performed. Result : DFDBX and DFDBX+PCM groups demonstrated superior bone healingcompared with control group. Group DFDBX+PCM showmore advanced healing at 8weeks post surgery and show the highest density radiographically as compared with theother group DFDBX and control.Immunohistochemistry revealed the presence ofosteocalcin in osteoblast and matrix extracellular and show significant differences werenoted between DFDBX and DFDBX+PCM to control groups.Conclusion : Application of DFDBX combined with bovine PCM gave the best result in bone regeneration of critical size defects in rat calvaria. , Background :Reconstruction of cranial and maxillofacial defects is a challenging task. The standard method has been bone grafting and using membrane in guided boneregeneration procedure.The aim of this study was to analyze the effect of Demineralized Freeze Dried BoneXenograft (DFDBX) with (or without)bovine pericardium membrane (PCM) on boneregeneration, in surgically created critical-size defects in rat calvaria, radiographically,histopathologically and immunohistochemically.Material and Methods :Surgical critical-size bone defects were created in 45 animalsthat randomly divided into three groups : control group, DFDBX group, andDFDBX+PCM group. Animals were sacrified at 1, 4 and 8 weeks post surgery.Radiological analysis was done. The specimens were embedded ini paraffin, serially cut,and stained with hematoxylin and eosin for analysis under light microscope. Theinflammation reaction, new bone formation, and the rest of DFDBX and PCM werehistomorphometrically evaluated. Immunohistochemical analysis of osteocalcinexpression was performed. Result : DFDBX and DFDBX+PCM groups demonstrated superior bone healingcompared with control group. Group DFDBX+PCM showmore advanced healing at 8weeks post surgery and show the highest density radiographically as compared with theother group DFDBX and control.Immunohistochemistry revealed the presence ofosteocalcin in osteoblast and matrix extracellular and show significant differences werenoted between DFDBX and DFDBX+PCM to control groups.Conclusion : Application of DFDBX combined with bovine PCM gave the best result in bone regeneration of critical size defects in rat calvaria. ]"

"Latar Belakang: Estimasi jenis kelamin merupakan prioritas penting dan langkah awal dalam proses identifikasi. Tulang orokraniofasial memiliki karakteristik dimorfik yang stabil dibandingkan tulang kerangka lainnya dan memiliki ketahanan tinggi terhadap pengaruh lingkungan. Saat ini, telah banyak peneliti diberbagai belahan dunia yang melaporkan penelitian secara metrik menggunakan parameter tulang orokraniofasial untuk estimasi jenis kelamin dan menunjukkan hasil akurasi yang signifikan pada setiap populasi. Populasi Trunyan merupakan bagian dari penduduk asli (indigenous people) dari Provinsi Bali. Tujuan: Untuk mengetahui dari analisis metrik pada parameter tulang orokraniofasial, mana yang dapat menunjukkan dimorfisme seksual pada laki-laki dan perempuan Populasi Trunyan, Bali. Metode Penelitian: Sampel terdiri dari 20 kranium (9 laki-laki dan 11 perempuan). Pengukuran dilakukan pada 34 parameter kranial (gabungan parameter Populasi Thailand dan Populasi Brazil). Analisis dilakukan secara statistik menggunakan SPSS dan dilakukan uji regresi logistik. Hasil: Nilai rata-rata ukuran kranium laki-laki lebih besar daripada perempuan hampir pada beberapa parameter pengukuran, kecuali nasal breadth dan foramen magnum breadth. Hasil analisis didapatkan sepuluh parameter tulang orokraniofasial menunjukkan perbedaan yang signifikan antara jenis kelamin laki-laki dan perempuan pada populasi Trunyan (p<0,05) yaitu parameter maximum cranial length, bizygomatic breadth, lambda – rhinion (La-Rhi), lambda – nasospinale (La-Ns), lambda-right zygomaxillare (La-RZgm), lambda-left zygomaxillare (La-LZgm), biauricular breadth, frontal chord, mastoid length right dan mastoid length left. Hasil analisis regresi logistik didapatkan dua parameter memiliki hubungan yang kuat untuk jenis kelamin laki-laki dan perempuan yaitu bizygomatic breadth dan minimum frontal breadth (R2=0,477). Secara keseluruhan, persamaan regresi logistik menunjukkan akurasi sebesar 75% untuk estimasi jenis kelamin pada Trunyan. Kesimpulan: Analisis metrik pada parameter tulang orokraniofasial dapat menunjukkan dimorfisme seksual pada laki-laki dan perempuan Populasi Trunyan, Bali.

---

Background: Sex estimation is an important priority and the first step in the identification process. Orocraniofacial bone has stable dimorphic characteristics compared to other skeletal bones and has high resistance to environmental influences. Currently, many researchers in various parts of the world have reported research on metrics using orocraniofacial bone parameters to estimate gender and showed significant accuracy results in each population. The Trunyan population is part of the Indigenous population (customary community) of Bali province. Objective: To determine the metric analysis of orocraniofacial bone parameters, which can indicate sexual dimorphism in males and females of the Trunyan population, Bali. Methods: The sample consisted of 20 craniums (9 males and 11 females). Measurements were made on 34 cranial parameters (combined parameters of the Thai population and the Brazilian population). The analysis was carried out statistically using SPSS and a logistic regression test. Results: The average size of male craniums is generally larger than that of females in most measurement parameters, except nasal breadth and foramen magnum breadth. The results of the analysis obtained ten orocraniofacial bone parameters which showed significant differences between male and female sex in the Trunyan population (p<0.05), which is the maximum cranial length, bizygomatic breadth, lambda – rhinion (La-Rhi), lambda – nasospinale (La-Ns), lambda-right zygomaxillare (La-RZgm), lambda-left zygomaxillare (La-LZgm), biauricular breadth, frontal chord, mastoid length right and mastoid length left. The results of the logistic regression analysis showed that two parameters had a strong relationship between males and females, which are bizygomatic breadth and minimum frontal breadth (R2=0,477). Overall, the logistic regression equation showed an accuracy of 75% for sex estimation in Trunyan. Conclusion: Metric analysis of orocraniofacial bone parameters can show sexual dimorphism in males and females of the Trunyan population, Bali."

"ABSTRAKPenelitian mengkaji segi subsistensi manusia terutama dalam memanfaatkan sumber daya fauna untuk memperoleh sumber protein hewani dan menggunakan sisa-sisa fauna sebagai bahan peralatan subsistensi. Pemanfaatan sumber daya fauna mempunyai fase nutris dan fase pengolahan bahan alat. Fase nutrisi berlangsung ketika hewan diburu, dijagal dan diambil jaringan lunaknya sebagai bahan makanan. Fase pengolahan bahan alat berlangsung setelah fase nutrisi berakhir dengan diperolehnya limbah konsumsi berupa sisa-sisa tulang hewan. Tulang hewan dipergunakan sebagai alat secara langsung (melalui expeditive bone fracturing technology) maupun secara terencana (melalui intensional bone fracturing technology). Analisis ekofaktual dan analisis khusus dipergunakan dalam mengamati tulang-tulang panjang vertebrata darat khususnya mamalia. Tujuan analisis untuk mendapatkan gambaran perburuan-pengumpulan hewan, teknologi dan morfologi perusakan tulang panjang hewan, dan teknologi alternatif peralatan subsistensi berbahan tulang hewan. Gambaran perburuan-pengumpulan diperoleh berdasarkan strategi perburuan yang disusun Julian Steward (1979) dengan membagi kategori perburuan hewan air, perburuan hewan kecil dan perburuan hewan besar. Gambaran teknologi dan morfologi perusakan tulang panjang hewan diperoleh berdasarkan analisis pecahan Bonnichsen (1979), teknologi pengubahan tulang Capaldo dan Blumensehine (1994) dan teknologi pengubahan tulang Eileen Johnson (1985). Gambaran penggunaan tulang hewan sebagai bahan peralatan subsistensi berdasarkan analisis khusus dengan menempatkan unsur tajaman sebagai indikator dalam mengamati artefak tulang. Berdasarkan kategori Steward, fauna Song Terus dibagi menjadi hewan air (ikan, linsang dan kura-kura), hewan kecil (monyet, kelelawar, tikus pohon, tupai, tikes, landak, unggas, rusa dan babi) dan hewan besar (kerbau, karnivora, badak dan gajah). Monyet merupakan hewan yang dominan berdasarkan indikasi kemunculan dan sebaran elemen hewan disusul kelompok ungulata, pengerat, kura-kura darat, unggas, karnivora, kelelawar, tikus pohon, ikan, badak dan gajah. Teknologi dan morfologi perusakan tulang tampak dalam kemunculan ciri-ciri keruakan tulang hewan, yaitu wilayah pemukulan, titik pukul, luka pemukulan, bentuk umum melingkar, bentuk-bentuk tepian pecahan, retakan penyerpihan dan serpih pemukulan. Ciri-ciri tersebut muncul pada fragmen epifisial, fragmen shaft diafisial, fragmen serpih diafisial dan fragmen konsentrasi. Terdapat dua tipe umum tajaman artefak yang dihasilkan dan variasi delapan sub tipe tajaman menunjukkan keragaman artefak alat tulang."

"This book documents all the ways a growth plate can be damaged, other than fracture. This damage can be inflicted by a wide variety of insults, most of which are uncommon occurrences. They all, however, have two similar characteristics: normal roentgenographs at the time of insult and premature complete or partial arrest noted weeks, months, or years later. Because of this delay, the arrest is often not suspected or recognised early. The resulting bone deformity and relative shortening usually go undetected until corrective surgery is needed. This book emphasises etiology, diagnosis, and treatment of these injuries."

"This highly illustrated text book will be an essential guide for surgeons in training, providing step by step approaches to performing Joint Aspiration/Injection, Bone Graft Harvesting and Lower Limb Amputations. Practical guidance will be given on Indications- Preoperative assessment, positioning and preparing the patient, approach required, tips and tricks, closure, postoperative complications, protocol of mobilization and follow-up procedure. All the procedures performed will include numerous intraoperative photographs and illustrations."

"This updated edition of the leading text on the imaging of child abuse and its imitators combines radiographic images with pathologic correlates of injury through abuse. Presented in full color for the first time, it contains many new photomicrographs and clinical images of bone scintigraphy, CT and sonography. Presenting radiologic findings in clinical, biomechanical and medicolegal contexts, a wealth of new material relating to extremity, thoracic and intracranial injuries is included. Chapters on extra-axial collections, parenchymal, visceral and miscellaneous injuries and MRI physics have been revised and expanded, while new chapters cover disorders of calcium and phosphorus metabolism and an extended discussion of skeletal injury. Complete with technical discussions explaining the physical principles and instrumentation of imaging equipment, this is essential reading for radiologists, pediatricians, forensic pathologists and emergency room physicians. Additionally, it will be of interest to a wide array of legal professionals"