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"Pada praktek kedokteran gigi sehari-hari sering ditemukan kondisi pasien yang kehilangan gigi posterior dan ingin dirawat dengan gigi tiruan jembatan (GTJ), namun pasien tidak menginginkan banyak dilakukan pengasahan pada gigi tetangganya yang akan dijadikan penyangga (abutment). Sehingga dibuatkan alternatif GTJ dengan desain menggunakan bahan fiber reinforced composite yang dapat membantu meminimalisir pengasahan. Tujuan penelitian ini adalah untuk menganalisa perbedaan besar beban maksimum yang dapat diterima dan gambaran fraktur yang terjadi pada restorasi Fiber Reinforced Composite Rigid Fixed Bridge (FRCRFB) inlay retainer dengan pemakaian 1 lapis, 2 lapis, dan 3 lapis fiber yang menggantikan kehilangan satu gigi posterior (premolar 2/P2). Penelitian eksperimen laboratorium dilakukan pada bulan Juni 2012 di Laboratorium Ilmu Material Kedokteran Gigi (PPMKG) dan Klinik Prostodonsia FKG UI. Spesimen terdiri dari 27 restorasi FRCRFB dengan inlay retainer yang dibuat di atas master model yang terdiri dari abutment premolar 1 dan molar 1 kanan atas, yang sudah dipreparasi dengan ukuran panjang mesio-distal kavitas inlay pada gigi P1 4mm, lebar bukal-lingual 4mm, dan kedalaman 3mm; panjang mesio-distal kavitas inlay pada gigi M1 6mm, lebar bukal-lingual 4mm, dan kedalaman 3mm. Panjang span / celah interdental sebesar 7mm sebagai ruang bagi P2. Uji tekan dilakukan dengan Universal Testing Machine Shimadzu AG 5000 E, crosshead speed 1mm/menit. Hasil penelitian menunjukkan ketahanan terhadap fraktur dengan rerata besar beban maksimum yang dapat diterima oleh restorasi dengan 1 lapis fiber 607,16N, rerata terbesar yaitu 694,10N yang diterima oleh resotrasi dengan 2 lapis fiber, dan rerata terkecil yaitu 587,58N yang diterima oleh restorasi dengan 3 lapis fiber, dengan nilai p>0,05. Sehingga disimpulkan bahwa tidak terdapat perbedaan yang signifikan terhadap ketahanan fraktur dari restorasi FRCRFB dengan inlay retainer baik pada pemakaian 1 lapis, 2 lapis, maupun 3 lapis fiber. Gambaran fraktur terjadi mayoritas pada daerah pontik.

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In dental practice, it is frequently found patient with missing one posterior teeth that need rehabilitation with Fixed Partial Denture (FPD), but the patient request minimal tooth preparation on the abutment. Therefore the alternative restoration with fiber reinforced composite was introduced, that only require minimal tooth preparation. The purpose of this study was to evaluate fracture resistance and fracture path of Fiber Reinforced Composite Rigid Fixed Bridge (FRCRFB) with inlay retainer with different quantity of fiber application as reinforcement. The specimen were divided into three groups (n=27) which are restored with1, 2, and 3 layers of fiber application to rehabilitate missing one posterior teeth (2nd premolar). The specimen consist of 27 restoration FRCRFB with inlay retainer that has been made upon master model which consist of 1stupper right premolar and 1stupper right molar abutment. The master model preparation was as followed: inlay cavity on 1st premolar was 4mm in width of mesio-distal, 4mm in width of bucal-lingual, and 3mm deep; inlay cavity on 1st molar was 6mm in width of mesio-distal, 4mm in width of bucal-lingual, and 3mm deep; the interdental gap was 7mm. Compressive test was done by Universal Testing Machine Shimadzu AG 5000 E, crosshead speed 1mm/minutes. The result shown fracture resistance of 2 layers of fiber application was the highest with mean 694,10N, followed by 1 layer of fiber application (mean 607,16N), and 3 layers of fiber application (mean 587,58N), with p>0,05. The majority fracture path was on the pontic site. Therefore it could be concluded that there was no significant difference of fracture resistance of restoration FRCRFB with inlay retainer with different quantity of fiber application. The fracture part mostly found in pontic area."

"Tujuan : Tujuan penelitian ini untuk mengetahui distribusi warna yang umum diperoleh pada pasien dengan menggunakan spektrofotometer berdasarkan faktor usia dan mengetahui apakah terdapat persamaan antara persepsi pasien dan operator. Latar Belakang : Perubahan warna (diskolorisasi) merupakan salah satu masalah dalam estetika pada perawatan prostodontik. Faktor yang menghambat adalah tidak adanya warna gigi tersebut pada shade guide. Ketidaksempurnaan shade guide menyebabkan tidak konsistennya pemilihan warna dan adanya perbedaan persepsi antara operator dan pasien. Pemilihan warna dengan cara digital dapat dilakukan dengan menggunakan spektrofotometer dapat membantu mengatasi masalah. Faktor usia menjadi salah satu pertimbangan dalam penentuan warna gigi. Metode : Observasi dilakukan pada 140 subyek yang terdiri dari kelompok usia berbeda untuk melihat distribusi warna gigi dengan menggunakan spektrofotometer dan shade guide. Operator dan pasien melakukan penentuan warna gigi untuk mengetahui adanya persamaan persepsi diantara keduanya dengan menggunakan shade guide. Hasil : Hasil uji bivariat korelasi lambda adalah p > 0,05 sehingga menunjukkan tidak terdapat hubungan bermakna antara usia dan penentuan warna gigi dengan menggunakan spektofotometer namun terdapat kecenderungan makin tua usia seseorang maka warna gigi cenderung gelap. Hasil uji bivariat korelasi lambda pada persepsi pasien dan operator adalah p > 0,05 sehingga menunjukkan tidak terdapat hubungan bermakna antara persepsi pasien dan operator. Kesimpulan : Adanya distribusi penentuan warna yang berbeda antara spektrofotometer dan shade guide. Tidak terdapat hubungan bermakna antara usia dan penentuan warna gigi dengan menggunakan spektofotometer namun terdapat kecenderungan makin tua usia seseorang maka warna gigi cenderung gelap. Terdapat perbedaan persepsi antara pasien dan operator dalam penentuan warna.

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Purpose : The purpose of this study was to identify the most frequent patient?s colour of teeth by make use of spectrophotometer in base of age and identify differences in perception of operator and patient.

Background : Discolorisation was an esthetic problems in prosthodontics treatment. The incompleted shade guide range in colour be capable inaccuracy of taking place by selection colour of teeth. Selection the colour of teeth digitaly defend utilize by spectrophotometer. Age preserve consideration within shade determination.

Method : Identify 140 subject with dissimilar age range to recognize distribution the colour of teeth. Operator and patient select the shade of teeth to recognize dissimilar perception between operator and patient.

Result : The result of bivariat lambda correlation test was p > 0,05 consequently age and color determination used the spektofotometer had no a correlation however there was inclined to increasingly age has more dark shade. The result of bivariat lambda correlation test was p > 0,05 as a result color determination perception between patient and operator had no a correlation.

Conclution : Difference distribution color determination was shown between spektofotometer and shade guide. Age and color determination used the spektofotometer had no a correlation however there was inclined to increasingly age has more dark shade. Patient and operator had different perception of color determination."

"Ketepatan tepi servikal merupakan aspek yang penting pada perawatan dengan gigi tiruan cekat. Adaptasi tepi servikal yang buruk dapat menyebabkan terjadinya karies dan penyakit periodontal. Penelitian ini bertujuan untuk menganalisa perbedaan ketepatan tepi servikal mahkota tiruan all-ceramichasil rekam digital scanner(CAD/CAM system) secara directyang direkam dalam mulut dan secara indirect yang direkam dari model kerja. Penelitian dilakukan pada 23 gigi posterior yang di preparasi untuk mahkota tiruan all-ceramic kemudian direkam secara direct dengan intraoral digital scanner dan dicetak untuk mendapatkan model kerja yang kemudian direkam dengan extraoral digital scanner. Sehingga didapatkan 46mahkota tiruan allceramic (Feldspathic ceramic, VITA Mark II, VITA Zahnfabrik) dibuat dengan sistem CAD/CAM CEREC 3D (Sirona). Ketepatan tepi didapat dengan mengukur potongan replika gigi hasil pencetakan ruang antara mahkota tiruan dengan gigi yang telah dipreparasi. Pengukuran dilakukan pada 4 titik dari 46 spesimen dengan Measuring microscopeMM-40 (Nikon, Japan) dengan perbesaran 50x. Hasil penelitian menemukan bahwaketepatan tepi servikal antara mahkota tiruan all-ceramichasil rekamdigital scannersecara direct dengan indirect memiliki perbedaan yang bermakna (P<0,05). Mahkota tiruan all-ceramic hasil rekam digital scanner secara direct memiliki ketepatan tepi yang lebih akurat (70,1μm ± 13,3) daripada indirect (82,3μm ± 12,2).

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Marginal fit is an important aspect in treatment with fixed dental prosthesis. Poor marginal adaptation can result in dental caries and periodontal disease. The objective of this study was to analyze the marginal fit of all-ceramic crown fabricated from impression with direct digital scanner intraorally and indirect digital scanner extra orally from working model. 23 posterior tooth wereprepared for all ceramic crowns then scanned with intra oral digital scanner (direct) and impression were made for working model fabrication and then scanned with extra oral digital scanner (indirect).The total of 46 all-ceramic crowns (Feldspathic ceramic, VITA Mark II, VITA Zahnfabrik) were fabricatedwithCAD/CAM system CEREC 3D (Sirona). Marginal fit were evaluated from measuring the silicone replica of the gap between the intaglio of full veneer crown and the margin of the prepared tooth. The 46 specimen was examined using Measuring microscopeMM-40 (Nikon, Japan) with a magnification of 50x. Statistical differences were found between marginal fit of all-ceramic crown fabricated from impression with direct digital scanner and indirect digital scanner(P<0,05). All-ceramic crown fabricated from impression with direct digital scanner (70,1μm ± 13,3) were significantly more accurate than indirect digital scanner (82,3μm ± 12,2)."

"[ABSTRAKPada 35 sampel, dilakukan analisis radiografis kepadatan tulang alveolar di sekitar implan dental menggunakan piranti lunak SIDEXIS-XG dan pengukuran frekuensi resonansi implan dengan mengunakan Osstell ISQ segera setelah pemasangan implan dan saat kontrol bulan ketiga.Tidakterdapat hubungan bermakna antara analisis radiografis kepadatan tulang alveolar di sekitar implan dental dan frekuensi resonansi implan dental (r = -0,102 di awal dan r = 0,146 saat kontrol, p> 0,05), namun terdapat perubahan bermakna kepadatan tulang alveolar di sekitar implan dental (p = 0,005) dan frekuensi resonansi implan dental (p = 0,000) selama masa penyembuhan.

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ABSTRACTOn 35 samples, alveolar bone density surrounding dental implant was analyzed using SIDEXIS-XG software and resonance frequency of dental implant was acquired by Osstell ISQ right after dental implant placement and on third-month follow-up. No significant correlation was reported between radiographic analysis of alveolar bone density surrounding dental implant and resonance frequency of dental implant (r = - 0,102 at baseline dan r = 0,146 on follow-up, p> 0,05). However, significant difference was observed for alveolar bone density surrounding dental implant and resonance frequency of dental implant throughout healing period (p = 0,005 and p = 0,000 respectively).;On 35 samples, alveolar bone density surrounding dental implant was analyzed using SIDEXIS-XG software and resonance frequency of dental implant was acquired by Osstell ISQ right after dental implant placement and on third-month follow-up. No significant correlation was reported between radiographic analysis of alveolar bone density surrounding dental implant and resonance frequency of dental implant (r = - 0,102 at baseline dan r = 0,146 on follow-up, p> 0,05). However, significant difference was observed for alveolar bone density surrounding dental implant and resonance frequency of dental implant throughout healing period (p = 0,005 and p = 0,000 respectively).;On 35 samples, alveolar bone density surrounding dental implant was analyzed using SIDEXIS-XG software and resonance frequency of dental implant was acquired by Osstell ISQ right after dental implant placement and on third-month follow-up. No significant correlation was reported between radiographic analysis of alveolar bone density surrounding dental implant and resonance frequency of dental implant (r = - 0,102 at baseline dan r = 0,146 on follow-up, p> 0,05). However, significant difference was observed for alveolar bone density surrounding dental implant and resonance frequency of dental implant throughout healing period (p = 0,005 and p = 0,000 respectively)., On 35 samples, alveolar bone density surrounding dental implant was analyzed using SIDEXIS-XG software and resonance frequency of dental implant was acquired by Osstell ISQ right after dental implant placement and on third-month follow-up. No significant correlation was reported between radiographic analysis of alveolar bone density surrounding dental implant and resonance frequency of dental implant (r = - 0,102 at baseline dan r = 0,146 on follow-up, p> 0,05). However, significant difference was observed for alveolar bone density surrounding dental implant and resonance frequency of dental implant throughout healing period (p = 0,005 and p = 0,000 respectively).]"