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Abstrak :
Latar belakang: xylitol adalah gula alkohol berantai karbon lima (polyol) yang banyak digunakan sebagai pemanis alami dalam bentuk permen karet untuk mencegah karies gigi. Xylitol memiliki efek antikaries karena dapat menghambat pertumbuhan S. mutans yang merupakan salah satu agen utama penyebab karies gigi, menurunkan pembentukan plak dan meningkatkan remineralisasi gigi. Pulpa gigi berperan penting bagi vitalitas gigi. Pada pulpa gigi yang terbuka, xylitol dapat berpenetrasi dan menimbulkan efek biologik pada sel. Tujuan: untuk mendeteksi efek xylitol terhadap viabilitas dan profil protein sel-sel pulpa gigi (in vitro). Metode: sel-sel pulpa gigi didapat dari gigi sehat yang baru diekstraksi, dan dikultur dalam medium kultur DMEM (37°C, 5% CO2) hingga confluent. Selanjutnya sel-sel tersebut disubkultur pada kondisi yang sama selama semalam di 24-wellplate. Setelah itu kelompok perlakuan dipaparkan xylitol dengan konsentrasi 2%, 4%, 8% dan 16%. Sedangkan pada kelompok kontrol tidak diberi xylitol. Viabilitas sel diukur dengan MTT assay. Sedangkan profil protein dianalisis dengan SDS PAGE. Hasil: rerata optical density (OD) kelompok xylitol 2% (1,784 ± 0,052), 4% (2,465 ± 0,057), 8% (2,168 ± 0,162), dan 16% (1,912 ± 0,148) lebih tinggi dibandingkan dengan kelompok kontrol (1,566 ± 0,069). Uji statistik Oneway ANOVA menunjukkan bahwa seluruh kelompok perlakuan berbeda bermakna dengan kontrol (p<0,05). Persentase viabilitas sel diperoleh dari rerata optical density. Viabilitas sel kelompok xylitol 2% (113,92%), 4% (157,40%), 8% (138,44%), dan 16% (122,09%) lebih tinggi dibandingkan dengan kelompok kontrol (100%). Dari hasil SDS PAGE, tampak perubahan profil protein sel-sel pulpa gigi. Simpulan: terdapat peningkatan viabilitas sel dan perubahan profil protein sel-sel pulpa gigi setelah pemaparan xylitol. ......Background: xylitol is five carbon sugar alcohol (polyol) which is used as natural sweetener in chewing gum to prevent dental caries. Xylitol has anticaries effect as it can inhibit the growth of S. Mutans, one of the main etiology of dental caries, decrease plaque formation, and increase tooth remineralization. Dental pulp has an important role in dental vitality. In exposed dental pulp, xylitol can penetrate and induce biological response of the cells. Objective: to detect the effects of xylitol to cell viability and protein profile of dental pulp cells (in vitro). Method: dental pulp cells were obtained from healthy and freshly extracted teeth, and were cultured in DMEM (37°C, 5% CO2) until confluent. Subsequently, they were subcultured in same condition overnight on 24-well plate. Afterwards, the treatment groups were exposed by 2%, 4%, 8%, and 16% xylitol. Whilst, the control group was not exposed by xylitol. Cell viability was measured by MTT assay. Whereas, the protein profile was analized by SDS PAGE. Results: the mean of optical density of treatment group with xylitol 2% (1,784 ± 0,052), 4% (2,465 ± 0,057), 8% (2,168 ± 0,162), and 16% (1,912 ± 0,148) were higher than control group (1,566 ± 0,069). Statistical test Oneway ANOVA showed that all the treatment groups were significantly different compared with the control (p<0,05). The percentage of cell viability was obtained from the mean of optical density. The cell viability of xylitol 2% (113,92%), 4% (157,40%), 8% (138,44%), dan 16% (122,09%) were higher than control group (100%). From SDS PAGE, there was protein profile alteration. Conclusion: there was an increased of cell viability and the alteration of protein profile of dental pulp cells after treated with xylitol.

Abstrak :
Latar belakang: Trietylene glycol dimethacrylate (TEGDMA) merupakan salah satu monomer yang terkandung dalam resin komposit. Jika polimerisasi resin komposit tidak sempurna, TEGDMA dapat terlepas ke dalam rongga mulut dalam beberapa menit hingga jam dan dapat berpenetrasi mencapai pulpa. TEGDMA dilaporkan bersifat toksik terhadap sel dan jaringan rongga mulut. Tujuan: Mengetahui efek TEGDMA terhadap sel-sel pulpa gigi ditentukan berdasarkan viabilitas dan profil protein sel pulpa (in vitro). Metode: Sel-sel pulpa berasal dari jaringan pulpa gigi sehat yang baru diekstraksi, kemudian dikultur dalam DMEM (37o C, 5% CO2) sampai confluent (± 2 malam). Selanjutnya dilakukan subkultur dengan kondisi yang sama selama 1 malam pada 24-wellplate. Kemudian pada kelompok perlakuan dipaparkan TEGDMA dengan konsentrasi 4 mM, 8 mM dan 12 mM selama 24 jam; sedangkan pada kelompok kontrol tidak dipaparkan TEGDMA. Viabilitas sel diukur dengan menggunakan MTT assay dan hasilnya dibaca dengan microplate reader (490 nm), sedangkan gambaran profil protein dideteksi dengan menggunakan SDS-PAGE dan diinterpretasikan dengan menggunakan Gel Doc. Hasil: Rerata optical density (OD) ± SD kelompok perlakuan TEGDMA 4 mM (1,71 ± 0,08); 8 mM (1,59 ± 0,11); dan 12 mM (1,50 ± 0,16) lebih rendah dibandingkan dengan kelompok kontrol (1,81 ± 0,11). Uji statistik One Way ANOVA menunjukkan bahwa nilai rerata OD kelompok TEGDMA 8 mM dan 12 mM berbeda bermakna dengan kelompok kontrol (p<0.05). Profil protein sel mengalami perubahan setelah pemaparan TEGDMA. Kesimpulan: Pada penelitian ini viabilitas sel menurun dan terjadi perubahan profil protein sel setelah pemaparan TEGDMA.

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Background: Trietylene glycol dimethacrylate (TEGDMA) is one of monomer contained in composite resin. If the polimerized was incomplete TEGDMA could bereleased into oral cavity in minutes to hours and could penetrate to the dental pulp. Itwas reported that TEGDMA has cytotoxic effects to cells and tissues in oral cavity. Objectives: To determine the toxic effect of TEGDMA on dental pulp cells culture based on cell viability and Protein Cell Profile. Methods: The pulp cells were isolated from the pulp tissue of the freshly extracted teeth, cultured in DMEM (37o C, 5% CO2) until confluent (± 2 nights). Afterwards, subcultured with the same condition overnight in 24-wellplate. Then, the treatment groups were treated with TEGDMA 4 mM, 8 mM, dan 12 mM for 24 hours, whereas in control group without TEGDMA exposure. The optical density of cell viability was measured by MTT assay then it was read with microplate reader in 490 nm. The protein cell profile was identified by SDS-PAGE method and analyzed by Gel Doc. Results: Mean optical density ± SD of TEGDMA treatment group 4mM (1,71 ± 0,08), 8mM (1,59 ± 0,11), and 12 mM (1,50 ± 0,16) were lower than the control group (1,81 ± 0,11). One Way ANOVA analysis showed that TEGDMA treatment group 8 mM and 12 mM had significant differences compared with the control group (p<0,05). The protein profile of cells was altered after TEGDMA exposure. Conclusion: In this research the cell viability was decreased and the protein profile of cells was altered after TEGDMA exposure.

Abstrak :
Latar belakang: xylitol adalah gula alkohol dengan 5 ikatan rantai karbon yang memiliki banyak manfaat bagi kesehatan manusia. Dalam bidang kedokteran gigi, xylitol memiliki peran sebagai antikaries gigi karena dapat menghambat pertumbuhan bakteri Streptococcus mutans penyebab karies gigi. Namun belum diketahui efek pemaparan xylitol terhadap sel-sel pulpa gigi. Pulpa gigi merupakan jaringan yang sensitif terhadap paparan benda asing. Pada pulpa gigi yang terbuka, xylitol dapat menimbulkan efek biologik. Tujuan: untuk mendeteksi efek paparan xylitol dalam beberapa konsentrasi terhadap protein total dan profil protein sel-sel pulpa gigi secara in vitro. Metode: sampel penelitian berasal dari sel-sel pulpa gigi sehat (tanpa karies) yang baru diekstraksi. Selanjutnya dikultur selama semalam dan dilanjutkan dengan subkultur selama semalam. Kemudian kelompok perlakuan xylitol dipaparkan xylitol dengan konsentrasi 2%, 4%, 8%, dan 16%, sedangkan kelompok kontrol tidak diberi paparan xylitol. Protein total sel-sel pulpa gigi diukur dengan menggunakan metode Bradford assay dan profil protein sel-sel pulpa gigi dianalisis dengan menggunakan metode SDS PAGE. Hasil: rerata konsentrasi protein total (µg/ml ± SD) sel-sel pulpa gigi kelompok perlakuan xylitol 2% (23031,305 ± 1636,87), kelompok perlakuan xylitol 4% (26380,865 ± 3278,0), kelompok perlakuan xylitol 8% (23192,574 ± 1441,39), dan kelompok perlakuan xylitol 16% (21498,481 ± 2633,37) memiliki rerata konsentrasi protein total sel-sel pulpa gigi yang lebih tinggi dibandingkan kelompok kontrol (19013,045 ± 2188,51) dan memiliki perbedaan bermakna berdasarkan uji statistik Oneway ANOVA. Namun, antar kelompok perlakuan xylitol 2%, 4%, 8% dan 16% tidak terdapat perbedaan bermakna (p<0,05). Pada gambaran profil protein, tampak terjadi perubahan profil protein pada kelompok perlakuan xylitol 2% dan 8%. Simpulan: pada penelitian ini terjadi peningkatan konsentrasi protein total dan perubahan profil protein selsel pulpa gigi setelah pemaparan xylitol.

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Background: xylitol is sugar alcohol with 5 carbon atom in the molecule which has many benefits for human health. In dentistry, xylitol is an anti-cariogenic agent as it can inhibit Streptococcus mutans growth. Nevertheless, the effect of xylitol exposure to dental pulp cells has not been known yet. Dental pulp is a sensitive tissue toward exposure of several agents. In the exposed dental pulp, xylitol can cause biological effects. Objectives: the effect of xylitol with several concentrations determined to total protein and protein profile of the dental pulp cells culture. Methods: the dental pulp cells were obtained from healthy and freshly extracted teeth (non-caries). Furthermore, dental pulp cells were cultured overnight and then subcultured another overnight. Afterwards, xylitol treatment group was exposured by 2%, 4%, 8%, and 16% xylitol, while control group was not exposured by xylitol. Total protein cells was measured by Bradford assay method and protein profile was analized by SDS PAGE. Results: the mean of total protein (µg/ml ± SD) cells concentration? of 2% xylitol group (23031,305 ± 1636,87), 4% xylitol group (26380,865 ± 3278,0), 8% xylitol group (23192,574 ± 1441,39), and 16% xylitol group (21498,481 ± 2633,37) were statistically higher than the control group (19013,045 ± 2188,51). However, there were not significant differences between 2%, 8%, and 16% xylitol groups. From the result of SDS PAGE, it was shown that there was altered protein profile in 2% and 8% xylitol group. Conclusions: in this research, the concentration of total protein cells were increased and the cells protein profile was altered in the dental pulp cells after xylitol exposured.

Abstrak :
Protein sel merupakan makromolekul yang terdiri dari satu atau beberapa polipeptida yang tersusun dari rangkaian asam amino yang saling berikatan. Terdapat perbedaan profil protein antara sel normal dengan sel kanker. Tujuan : Melihat ekspresi protein pada KSSRM dan mukosa mulut normal. Metode : Sel galur HSC-3 dan HSC-4 dikultur hingga confluent. Sel skuamosa mukosa normal diambil dari jaringan gingiva pasien odontektomi. Semua sampel dilakukan prosedur ekstraksi protein, Bradford protein assay, dan SDS PAGE. Hasil : KSSRM mengekspresikan protein dengan level cukup tinggi pada berat molekul 31-78 kDa. Namun, pada mukosa normal, kebanyakan mengekspresikan protein pada berat molekul antara 39 - 172 kDa. Kesimpulan : Terdapat perbedaan ekspresi protein pada sel galur KSSRM dibandingkan dengan mukosa mulut normal.

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Cells Proteins are macro molecules consist of one or several polypeptides which formed from amine acid chain that bound one another. There is a different of protein profile between normal and cancer cells. Objective : To observe the protein expression in OSCC and normal oral mucous. Method : Cell lines HSC-3 and HSC-4 were cultured until confluent. Normal squamous mucosa was taken from gingival tissues patient who had odontectomy procedure. Protein extraction, Bradford protein assay, and SDS PAGE procedure were performed for all samples. Results : Oral squamous cells carcinoma expressed rather high level of protein which have molecular weight of 31-78 kDa compared to normal gingival which express protein molecular weight ranging between 39 - 172 kDa. Conclusion : There are different protein expression between oral squamous cells carcinoma and normal oral mucous.

Abstrak :
Latar belakang: Trietylene glycol dimethacrylate (TEGDMA) merupakan salah satu monomer yang terkandung dalam bahan tambal resin komposit. Jika polimerisasi tidak sempurna, TEGDMA dapat dengan mudah terlepas ke dalam rongga mulut beberapa menit hingga jam setelah penambalan, dan dapat berpenetrasi ke dalam pulpa. TEGDMA yang terlepas dilaporkan bersifat toksik terhadap jaringan dan sel tubuh. Tujuan: menentukan efek TEGDMA terhadap protein total dan profil protein sel-sel pulpa gigi. Metode: sel-sel pulpa didapat dari jaringan pulpa gigi sehat yang baru diekstraksi, kemudian dikultur pada medium kultur DMEM. Setelah sel kultur tampak confluent (±2 malam), dilakukan subkultur dari kultur primer tersebut, yang kemudian diinkubasi kembali pada suhu 37° C dan 5% CO2 selama 1 malam pada 24- well plate. Kemudian dilakukan pemaparan TEGDMA dengan konsentrasi 4mM, 8mM dan 12mM, selama 24 jam, sedangkan pada kelompok kontrol tidak dilakukan pemaparan TEGDMA. Penentuan konsentrasi protein total sel pulpa dilakukan dengan menggunakan Bradford protein assay. Profil protein sel pulpa diidentifikasi dengan teknik SDS-PAGE. Analisa berat molekul protein sampel dilakukan dengan menggunakan Gel Doc (Band Analysis Quick Guide). Hasil: Rerata konsentrasi protein total sel (µg/ml ± SD) pada kelompok perlakuan dengan TEGDMA 4mM (22762,27±3385,87) dan 8mM (20268,44±1701,14) memiliki nilai dibawah kelompok kontrol (24253,77±3072,88). Sedangkan kelompok perlakuan dengan TEGDMA 12mM (23706,51±3214,52) memiliki nilai konsentrasi protein total sel di atas kelompok 4mM dan 8mM, namun masih tetap di bawah kelompok kontrol. Berdasarkan uji statistik dengan one way ANOVA, hanya kelompok TEGDMA 8mM yang memiliki perbedaan rerata konsentrasi protein total sel yang bermakna (p=0.037) terhadap kelompok kontrol. Selanjutnya dari gambaran profil protein yang terbentuk pada gel elektroforesis, tampak perubahan profil protein sel pada setiap kelompok setelah paparan TEGDMA. Kesimpulan: Pada penelitian ini terjadi penurunan konsentrasi protein total sel dan perubahan profil protein sel pulpa gigi setelah pemaparan TEGDMA dengan konsentrasi 4mM, 8mM, dan 12mM.

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Background: Trietylene glycol dimethacrylate (TEGDMA) is one of monomer that contained in composite resin restoration. When polymerization is incomplete, this compound could leache into oral cavity in minutes to hours after the restoration, and could penetrate the dental pulp. TEGDMA has been reported to be cytotoxic to the tissues and cells. Objective: to determine the effects of TEGDMA on total protein and protein profile of the dental pulp cells. Methods: the dental pulp cells were collected from the dental pulp tissues of the freshly extracted teeth, and cultured in culture medium of DMEM. After the growth of cultured cells was confluent (±2 nights), the cells were subcultured then incubated (37°C, 5% CO2) overnight in 24-well plate. Afterwards, the cells were exposed to TEGDMA with concentrations of 4mM, 8mM, and 12mM, for 24 hours, meanwhile in control group without TEGDMA exposure. The concentration of total cell protein was measured by Bradford protein assay. The protein profile of the dental pulp cells were identified by SDS-PAGE. The molecular weight of sample protein was analyzed by Gel Doc (Band Analysis Quick Guide). Results: The mean of total cell protein concentration (µg/ml ± SD) on treatment groups of 4mM TEGDMA (22762,27±3385,87) and 8mM (20268,44±1701,14) were lower than the controls (24253,77±3072,88). Whereas, the total cell protein concentration of treatment group of TEGDMA 12mM (23706,51±3214,52) was higher than the treatment groups with TEGDMA 4mM and 8mM, but it was still lower than the controls. According to one way ANOVA statistic test, only the treatment group with TEGDMA 8mM was significantly lower than the controls (p=0.037). Furthermore, the protein profile identified by electrophoresis gel, showed the profile alteration after TEGDMA exposure. Conclusion: In this research the total cell protein concentration was decreased and the protein profile of the dental pulp cells was altered after exposure with TEGDMA 4mM, 8mM, and 12mM.

Abstrak :
Latar Belakang: Saliva merupakan cairan biologis yang kompleks pada rongga mulut yang mengandung berbagai komponen, salah satunya protein. Protein pada saliva merupakan salah satu sistem pertahanan yang dapat berperan melindungi rongga mulut dari penyakit. Tujuan: Menganalisis perbedaan profil protein dan konsentrasi total protein saliva perokok dan non-perokok serta kaitannya dengan karies. Metode: Penelitian melibatkan kelompok  perokok n=25 dan kontrol (non perokok) n=25. Kosentrasi total protein saliva diuji dengan metode Bradford serta profil protein saliva diperoleh dengan menggunakan metode SDS PAGE. Karies diukur dengan score indeks DMF-T melalui pemeriksan klinis. Hasil: Terdapat protein saliva dominan yang ditemukan pada subjek perokok dengan berat molekul 11.6 kDa dan 54.5 kDa dan subjek non-perokok dengan berat molekul 27 kDa, 60 kDa, 94.5 kDa. Konsentrasi total protein saliva subjek perokok sebesar 551.486 µg/mL  lebih rendah dibandingkan non perokok yaitu sebesar 765.361µg/mL dengan perbedaan statistik tidak signifikan. Kesimpulan: Terdapat perbedaan profil protein saliva perokok dan non perokok, namun tidak terdapat perbedaan yang signifikan pada konsentrasi total protein saliva antara kelompok perokok dan non perokok. Terdapat korelasi negatif lemah antara profil dan total protein dengan skor indeks DMF-T.

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Background: Saliva is a complex biological fluid in the oral cavity that contains various components, one of them is protein. Protein in saliva is one of the defense systems that can protect the oral cavity from disease. Objective: To analyze the difference of salivary protein`s profile and total concentration in smokers and non-smokers (control) and their correlation with dental caries that measured by DMF-T index scores. Methods: Study consisted of two group, smokers group (n=25) and  non-smokers as healthy control (n=25). Salivary protein total determined with Bradford method and the salivary protein profile determined with SDS-PAGE method. Caries was assessed by the DMF-T index scores through clinical examination. Result: The dominant salivary proteins  profile were found in smokers subject with molecular mass 11.6 kDa and 54.5 kDa and those found in non-smokers subject with molecular mass 27 kDa, 60 kDa, and 94.5 kDa. The total salivary protein conctrentation of smokers subject are 551.486 µg/mL lower than non-smokers subject, which is 765.361µg/mL) but the difference was not statistically significant (P>0.05). Conclussion: There are differences found in salivary protein profile between smokers and non-smokers subject. However, there is no significant difference in salivary protein total between smokers and non smokers. There are negative correlation between the salivary protein`s total and the scores of DMF-T index.

Abstrak :
Latar belakang: Trietylene glycol dimethacrylate (TEGDMA) merupakan salah satu monomer yang terkandung dalam bahan tambal resin komposit. Jika resin komposit mengalami polimerisasi tidak sempurna, TEGDMA dengan mudah terlepas ke dalam rongga mulut dalam beberapa menit hingga jam setelah penambalan, kemudian berpenetrasi mencapai pulpa. TEGDMA yang terlepas dilaporkan bersifat sitotoksik. Tujuan: Menentukan efek TEGDMA (4 mM, 8 mM, dan 12 mM) terhadap protein total dan profil protein medium kultur sel-sel pulpa gigi. Metode: Sel-sel pulpa didapat dari jaringan pulpa gigi sehat yang baru diekstraksi, kemudian dikultur pada medium kultur DMEM. Setelah sel kultur tampak confluent (±2 malam), dilakukan subkultur yang kemudian digunakan sebagai sampel pada penelitian ini. Selanjutnya, kultur sel-sel pulpa gigi pada kelompok perlakuan masing-masing dipapar TEGDMA 4 mM, 8 mM, dan 12 mM. dan diinkubasi pada suhu 37°C, 5% CO2 selama 24 jam. Sedangkan pada kelompok kontrol tidak dipaparkan TEGDMA. Konsentrasi protein total medium kultur diukur menggunakan Bradford protein assay lalu dibaca dengan microplate reader pada panjang gelombang 655 nm. Kemudian, identifikasi profil protein medium kultur dilakukan dengan metode SDS PAGE. Hasil: Nilai rerata konsentrasi protein total medium kultur (µg/ml ± SD) kelompok perlakuan TEGDMA 4 mM, 8 mM, dan 12 mM berturut turut adalah 28635.85 ± 2373.39, 35288.41 ± 3469.47, dan 38199.79 ± 2752.47. Nilai-nilai tersebut lebih tinggi daripada kelompok kontrol 27073.83 µg/ml ± 2772.46. Analisis statistik one way ANOVA menunjukan terdapat perbedaan bermakna antara kelompok perlakuan TEGDMA 8 mM dan 12 mM dengan kelompok kontrol (p<0,05). Hasil identifikasi profil protein medium kultur menunjukan tampak perubahan profil protein pada setiap kelompok setelah pemaparan TEGDMA 4 mM, 8 mM, dan 12 mM. Kesimpulan: Pada penelitian ini konsentrasi protein total medium kultur meningkat dan profil protein medium kultur mengalami perubahan setelah pemaparan TEGDMA 4 mM, 8 mM, dan 12 mM pada sel-sel pulpa.

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Background: Trietylene glycol dimethacrylate (TEGDMA) is one of monomer that contained in composite resin restoration. TEGDMA could be released from composite resins to the oral cavity following incomplete polymerization in a few minutes to hours after the placement of restoration, and then the monomers of TEGDMA could penetrate the dental pulp. TEGDMA that released was reported has cytotoxic effects. Objectives: To determine the effect of TEGDMA (4 mM, 8 mM, dan 12 mM) on total protein and protein profile of culture medium of the dental pulp cells. Methods: The pulp cells were isolated from the pulp of the freshly extracted teeth, and cultured in culture medium of DMEM. After the cells visually confluent (±2 nights), subcultured to be used as samples. Afterwards, the cells culture in treatment group were treated with TEGDMA 4 mM, 8 mM, dan 12 mM and incubated at 37°C, 5% CO2 for 24 hours. Whereas, in control group without TEGDMA exposure. The concentration of total protein in culture medium was measured by Bradford protein assay then were read by microplate reader in 655 nm. Then, the protein profile of culture medium was identified by SDS PAGE method. Result: The mean of total protein of culture medium (µg/ml ± SD) on treatment groups of TEGDMA 4 mM, 8 mM, dan 12 mM were 28635.85 ± 2373.39, 35288.41 ± 3469.47, and 38199.79 ± 2752.47 were higher than the controls 27073.83 ± 2772.46. One way ANOVA statistic analysis showed that treatment group of TEGDMA 8 mM and 12 mM were significant different compared with the control group (p<0,05). The protein profile of culture medium was altered after TEGDMA exposure. Conclusion: In this research the total protein of culture medium was increased and its protein profile was altered after exposure of TEGDMA 4 mM, 8 mM, and 12 mM to dental pulp cells.

Abstrak :
Latar Belakang: Menghilangkan seluruh bakteri, khususnya E. faecalis di dalam saluran akar masih menjadi masalah dalam perawatan saluran akar karena bentuknya yang ireguler di sepertiga apikal. Jumlah kunjungan perawatan endodontik konvensional yang berulang juga masih di rasakan tidak praktis. Pemakaian laser terapi foto dinamik dan kalsium hidroksida dalam bentuk larutan adalah upaya menemukan teknik dan bahan untuk eliminasi tersebut. Mengetahui sifat-sifat spesifik bakteri berupa keragaman genotip dan karakter fenotip yaitu perilakunya terhadap perubahan lingkungan, diharapkan akan dapat menemuka tekanik dan medikamen terbaik untuk sterilisasi saluran akar. Tujuan: Menganalisis perbedaan jumlah dan karakter genotip bakteri E. faecalis di saluran akar yang mengalami infeksi intra radikuler primer dan persisten serta menganalisis perubahan karakter fenotip pada kasus infeksi intra radikuler persisten setelah mendapat perlakuan dengan laser terapi foto dinamik dan larutan kalsium hidroksida 50%. Material dan Metode: Bakteri E. faecalis diisolasi dari saluran akar kemudian dilakukan penentuan tipe genotip cps nya. Perubahan karakter fenotip dilakukan dengan melihat sensitivitas, profil protein dan profil kapsul polisakarida dengan di beri perlakuan menggunakan sinar laser foto dinamik terapi dan larutan kalsium hidroksida 50%. Hasil: Sensitivitas bakteri E. faecalis terhadap Laser foto dinamik terapi dan kalsium hidroksida 50% yang diaplikasikan selama 60 detik pada infeksi intra radikuler persisten efektif dalam sterilisasi saluran akar. Kesimpulan: Laser foto dinamik terapi dan kalsium hidroksida 50% dapat menyebabkan perubahan sensitivitas, profil protein dan profil kapsul polisakarida pada genotip cps 1, 2 dan 5 bakteri E. Faecalis pada infeksi intra radikuler persisten. ......Background: Eliminating all bacteria, especially E. faecalis in the root canal remains a problem in root canal management due to its irregular shape at one third of apical area. The repeating endodontic visits also seem to be less practical. Utilization of photo dynamic laser and calcium hydroxide solution therapy is an attempt in finding the suitable technique and materials for eliminating this issue. Knowledge of specific characters of bacteria such as the various genotypes and the phenotype character, which is its behavior towards environmental changes, is expected to be helpful in finding the best technique and medicament for root canal sterilization. Objective: Analyse the amount and genotypic characters difference of E. faecalis in the root canal affected with primary and persistent intra radicular infection and analyse phenotypic character changes in persistent intra radicular infections cases after application of photo dynamic laser and 50% calcium hydroxide therapy. Material and Method: E. faecalis was isolated from the root canal and its cps genotype was determined. Phenotypic character changes were observed with sensitivity, protein profiling and polysaccharide capsule profiling after getting photo dynamic laser and 50% calcium hydroxide 50% therapy. Results: E. faecalis sensitivity towards photo dynamic laser and 50% calcium hydroxide treatment for 60 seconds acquired from persistent intra radicular infection was effective in root canal sterilization. Conclusion: Photo dynamic laser and 50% calcium hydroxide therapy can change the sensitivity, protein profile, and polysaccharide capsule profile of cps 1, 2 and 5 genotype E. faecalis in persistent intra radicular infection.

Abstrak :
Latar Belakang: Human Platelet Lysates (HPL) yang berasal dari platelet yang melewati masa simpan belum diketahui efeknya pada kultur HUVEC. Tujuan: Mengevaluasi pengaruh waktu penyimpanan platelet pada HPL terhadap profil protein HUVEC. Metode: HUVEC dikultur dengan FBS, HPL fresh, dan HPL extended diuji dengan SDS-PAGE. Hasil: Intensitas band HPL fresh dan extended cenderung lebih tinggi. Ketebalan band HPL fresh dan extended lebih tinggi dibandingkan FBS pada band 4, dan lebih rendah pada band 3. Kisaran berat molekul protein HPL fresh dan extended tidak berbeda dibandingkan FBS. Simpulan: Profil protein HUVEC menggunakan HPL fresh dan extended identik dengan FBS. ......Background: The effect of Human Platelet Lysates (HPL) derived, from platelets that have passed normal shelf life was unknown on HUVEC. Objective: To determine shelf-life effect on HPL as FBS alternative on HUVEC protein profile. Method: HUVEC were cultured with FBS, fresh, extended HPL, and analyzed with SDS-PAGE. Results: Band intensity of fresh HPL tended to be higher. Band thickness of HPL higher than FBS in band 4th row band, and lower in 3rd row band. No difference were observed in protein molecular weight range between HPL fresh, extended, FBS. Conclusion: HUVEC protein profile cultured with fresh, extended HPL is identical with FBS.