Hasil Pencarian  ::  Simpan CSV :: Kembali

"Penelitian ini dilakukan untuk mencari cara sterilisasi guta-perca yang efektif dan efisien sebelum digunakan untuk mengisi saluran akar. Guta-perca yang dicemari Staphylococcus aureus dan Bacillus subtilis direndam dalam natrium hipoklorit dengan konsentrasi 5,25 % ; 2,65 % ; 1,31 % dan ke dalam povidon yodium dengan konsentrasi 10 % ; 1 % ; 0,5 % selama 0,5; 1; 3; 6 menit. Kemudian dibilas dengan merendam dalam larutan fisiologis NaCl steril, lalu dibiak dalam perbenihan thioglikolat,dan dieramkan pada suhu 370C selama 72 jam, untuk dilihat apakah perbenihan tetap jernih, atau menjadi keruh. Ternyata efek kedua desinfektans ini tidak berbeda bermakna. Dapat disimpulkan bahwa kedua bahan ini bisa digunakan untuk sterilisasi guta-perca sebelum pengisian saluran akar. Pada konsentrasi yang kecil dan dalam waktu yang singkat kedua desinfektans ini sudah cukup efektif mematikan kuman Staphylococcus aureus dan Bacillus subtilis."

"[ABSTRAKKavitas kelas I sering ditemui pada permukaan gigi molar karena mempunyai bentuk anatomi pit dan fisur yang dalam sehingga sering menyebabkan sisa makanan tertinggal yang nantinya dapat menyebabkan karies gigi. Bahan restorasi yang sesuai untuk penumpatan kavitas kelas I adalah resin komposit. Namun resin komposit memiliki kelemahan yaitu mengalami penyusutan polimerisasi yang menyebabkan kebocoran tepi. Kavitas kelas I juga memiliki c-factor terbesar dibandingkan kavitas lainnya yang dapat menyebabkan kebocoran, sehingga untuk mengatasinya dapat menggunakan liner SIKMR serta teknik Bulk-fill dan inkremental oblik. Tujuan dari penelitian ini adalah menganalisis kebocoran tepi restorasi resin komposit teknik Bulk-fill dengan liner dan teknik inkremental dengan liner. Sebanyak 70 sampel dipreparasi dibagian bukal dengan ukuran 3 mm x 3 mm, terdiri dari 10 sampel kelompok Bulk-fill, 30 sampel kelompok Bulk-fill dengan liner SIKMR dan 30 sampel kelompok inkremental oblik. dengan liner SIKMR direndam dalam air destilasi selama 24 jam. Kemudian dilakukan Thermocycling 250x, suhu 5-550C dilanjutkan dengan aplikasi cat kuku dan rendam dalam metilen biru selama 24 jam. Sampel dibelah dalam arah buko-palatal dan dilakukan pengamatan menggunakan mikroskop stereo kemudian hasilnya diuji statistik menggunakan uji Chi-Square. Hasil uji statistik menunjukkan adanya perbedaan yang bermakna diantara semua kelompok dengan nilai signifikansi p≤0,05. Inkremental oblik dengan liner menunjukkan tingkat kebocoran lebih rendah dibandingkan Bulk-fill dengan liner.

---

ABSTRACTCavity class I often found on the surface of the molars because they have the anatomical shape of pits and fissures are deep that often cause food scraps left behind which can later lead to dental caries. Restorative material suitable for cavities penumpatan class I is the composite resin. However, a drawback of composite resin namely polymerization shrinkage which causes microleakage. Cavity class I also have a c-factor compared to most other cavity which can cause leaks, so to overcome SIKMR can use the liner as well as bulk-fill technique and incremental oblique. The purpose of this study was to analyze the microleakage of composite resin restorations Bulk-fill technique and oblique incremental techniques with liner. A total of 70 samples were prepared on the buccal with the size of 3 mm x 3 mm, consisting of 10 groups of Bulk-fill samples, 30 samples of Bulk-fill groups with liner SIKMR and oblique incremental groups of 30 samples. with liner SIKMR soaked in distilled water for 24 hours. Then do the Thermocycling 250X, 5-550 C temperature followed by application of nail polish and soak in methylene blue for 24 h. Samples were cleaved in buko-palatal direction and made observations using a stereo microscope and the result was tested statistically using Chi-Square. Statistical analysis showed significant differences among all groups with significant value p≤0,05. Incremental oblique with liner show a lower leakage rate than the Bulk-fill with liner., Abstract: Cavity class I often found on the surface of the molars because they have the anatomical shape of pits and fissures are deep that often cause food scraps left behind which can later lead to dental caries. Restorative material suitable for cavities penumpatan class I is the composite resin. However, a drawback of composite resin namely polymerization shrinkage which causes microleakage. Cavity class I also have a c-factor compared to most other cavity which can cause leaks, so to overcome SIKMR can use the liner as well as bulk-fill technique and incremental oblique. The purpose of this study was to analyze the microleakage of composite resin restorations Bulk-fill technique and oblique incremental techniques with liner. A total of 70 samples were prepared on the buccal with the size of 3 mm x 3 mm, consisting of 10 groups of Bulk-fill samples, 30 samples of Bulk-fill groups with liner SIKMR and oblique incremental groups of 30 samples. with liner SIKMR soaked in distilled water for 24 hours. Then do the Thermocycling 250X, 5-550 C temperature followed by application of nail polish and soak in methylene blue for 24 h. Samples were cleaved in buko-palatal direction and made observations using a stereo microscope and the result was tested statistically using Chi-Square. Statistical analysis showed significant differences among all groups with significant value p≤0,05. Incremental oblique with liner show a lower leakage rate than the Bulk-fill with liner.]"

"ABSTRAK Odontocem® dan Biodentine®, berbahan dasar kalsium silikat. Tetapi terdapat kandungan lain yang mungkin memiliki efek pada viabiltas sel. Contohnya penambahan steroid dalam Odontocem®. Belum diketahui apakah penambahan steroid tersebut memiliki efek atau tidak terhadap viabilitas sel. Sel fibroblas yang diambil dari Telur Embrio Tertunas (TET), dipajan dengan Odontocem® dan Biodentine® dengan jumlah masing-masing kelompok sebesar 15 well. Kemudian viabilitas sel diukur selama 24 jam dan 72 jam. Hasil penelitian diuji dengan uji statistik Kruskal Wallis dengan uji post hoc Mann-Whitney. Berdasarkan hasil penelitian, didapatkan bahwa Odontocem® dan Biodentine® memiliki efek menurunkan viabiltas sel fibroblas pada pengukuran 24 jam dan 72 jam. Juga viabilitas sel fibroblas pada kelompok perlakuan Odontocem ® lebih tinggi daripada Biodentine® baik pada pengukuran 24 jam maupun 72 jam. ABSTRACT Odontocem® and Biodentine®, both consist of calcium silicate. But there are other substances which may have an effect on cell viability. For example, addition of steroids in Odontocem®. It is not yet known whether these steroids have an effect or not on the cell viability. Fibroblasts taken from Chicken Embryo, added with Odontocem® and Biodentine® by each group of 15 wells. Then the cell viability was measured for 24 hours and 72 hours. The result were tested by Kruskal Wallis statistical test with post hoc test of Mann-Whitney. Based on this research, it was found that Odontocem® and Biodentine® have a lowering effect on the fibroblast cell viability for 24 hours and 72 hours. Thus, fibroblast cell viability the treatment group Odontocem ® is higher than both the measurement Biodentine® 24 hours or 72 hours.;Odontocem® and Biodentine®, both consist of calcium silicate. But there are other substances which may have an effect on cell viability. For example, addition of steroids in Odontocem®. It is not yet known whether these steroids have an effect or not on the cell viability. Fibroblasts taken from Chicken Embryo, added with Odontocem® and Biodentine® by each group of 15 wells. Then the cell viability was measured for 24 hours and 72 hours. The result were tested by Kruskal Wallis statistical test with post hoc test of Mann-Whitney. Based on this research, it was found that Odontocem® and Biodentine® have a lowering effect on the fibroblast cell viability for 24 hours and 72 hours. Thus, fibroblast cell viability the treatment group Odontocem ® is higher than both the measurement Biodentine® 24 hours or 72 hours."

"ABSTRAK Latar belakang: Ketahanan ikatan antara resin komposit dengan dentin merupakan penentu keberhasilan restorasi resin komposit.Tujuan: Menganalisis EBA terhadap kekuatan ikat resin-dentin.Metode: 48 sampel dentin dibagi menjadi 6 kelompok. Kemudianseluruh kelompok di ukur kekuatan ikat gesernya menggunakan UTM.Data dianalisa statistik dengan uji hipotesis Kruskal Wallis yangdilanjutkan dengan uji Mann Whitney. Hasil: Median tertinggikelompok 3, sedangkan median terendah kelompok 5. Kesimpulan:Ekstrak biji anggur yang diaplikasikan sebelum etsa dapatmeningkatkan kekuatan ikat gesek namun tidak dapat menghambatbiodegradasinya.ABSTRACT Background: Resilience of resin-dentin bonding known as one ofsuccess composite resin restoration determinants. Aim: To analyze theeffect of grape seed extract on resin-dentin shear bond strength.Methods: 48 dentin sample were divided into 6 groups. Shear bondstrengths measured using UTM. Statistical analysis was done byKruskal Wallis test and Mann Whitney test. Results: The highestmedian value was highest on group 3, and the lowest was group 5.Conclusion: Grape seed extract can improve the shear bond strengthbut not have effect on reducing the biodegradation.;Background: Resilience of resin-dentin bonding known as one ofsuccess composite resin restoration determinants. Aim: To analyze theeffect of grape seed extract on resin-dentin shear bond strength.Methods: 48 dentin sample were divided into 6 groups. Shear bondstrengths measured using UTM. Statistical analysis was done byKruskal Wallis test and Mann Whitney test. Results: The highestmedian value was highest on group 3, and the lowest was group 5.Conclusion: Grape seed extract can improve the shear bond strengthbut not have effect on reducing the biodegradation."

"ABSTRAK Latar Belakang: siler polidimetilsiloksan merupakan siler baru yang berpotensi menutup saluran akar lebih baik. Tujuan: membandingkan tingkat kerapatanpengisian di sepertiga apeks antara teknik kon tunggal (KT) dan downpackbackfill(DB) menggunakan siler polidimetilsiloksan. Metode: empat puluh gigipremolar bawah dibagi menjadi dua kelompok KT dan DB. Setelah pengisiansaluran akar, sampel diinkubasi, dilapisi cat kuku, direndam dalam tinta India, laludibuat transparan dengan metode Robertson. Kebocoran di sepertiga apeksdievaluasi dengan mikroskop stereo. Hasil: skor kebocoran terendah (0-0,5 mm)dimiliki oleh kelompok KT dan skor kebocoran tertinggi (>1 mm) dimiliki olehkelompok DB. Kesimpulan: teknik kon tunggal memberikan tingkat kerapatanyang lebih baik dibandingkan downpack-backfill, walaupun secara statistik perbedaan antar keduanya tidak signifikan. ABSTRACT Background: polydimethylsiloxane sealer is a brand new sealer that potentiallyhas a better sealing ability to the root canal. Aim: to compare the apical sealingability in one third apex between single cone (SC) and downpack-backfill (DB)technique using polydimethylsiloxane sealer. Methods: fourty extracted humanmanibular premolars devided into two group, SC and DB. After obturated withpolydimethylsiloxane sealer, samples were stored in incubator, coated with nailvarnish, immersed in India ink, and then specimens were cleared usingRobertson?s technique. The apical dye penetration was evaluated using astereomicroscope. Result: the lowest leakage score (0-0,5 mm) was found in SCgroup and the highest score(>1 mm) in DB group. Summary: single conetechnique exibited better sealing ability rather than downpack-backfill technique, although no statistical significant difference between this two techniques. ;Background: polydimethylsiloxane sealer is a brand new sealer that potentiallyhas a better sealing ability to the root canal. Aim: to compare the apical sealingability in one third apex between single cone (SC) and downpack-backfill (DB)technique using polydimethylsiloxane sealer. Methods: fourty extracted humanmanibular premolars devided into two group, SC and DB. After obturated withpolydimethylsiloxane sealer, samples were stored in incubator, coated with nailvarnish, immersed in India ink, and then specimens were cleared usingRobertson?s technique. The apical dye penetration was evaluated using astereomicroscope. Result: the lowest leakage score (0-0,5 mm) was found in SCgroup and the highest score(>1 mm) in DB group. Summary: single conetechnique exibited better sealing ability rather than downpack-backfill technique, although no statistical significant difference between this two techniques. ;Background: polydimethylsiloxane sealer is a brand new sealer that potentiallyhas a better sealing ability to the root canal. Aim: to compare the apical sealingability in one third apex between single cone (SC) and downpack-backfill (DB)technique using polydimethylsiloxane sealer. Methods: fourty extracted humanmanibular premolars devided into two group, SC and DB. After obturated withpolydimethylsiloxane sealer, samples were stored in incubator, coated with nailvarnish, immersed in India ink, and then specimens were cleared usingRobertson?s technique. The apical dye penetration was evaluated using astereomicroscope. Result: the lowest leakage score (0-0,5 mm) was found in SCgroup and the highest score(>1 mm) in DB group. Summary: single conetechnique exibited better sealing ability rather than downpack-backfill technique, although no statistical significant difference between this two techniques. "

"ABSTRAK Latar Belakang. P.gingivalis merupakan bakteri periodonsium yang dapatberpindah ke saluran akar pada lesi endoperio kombinasi murni. Jumlah danproporsinya berperan terhadap keparahan penyakit karena sifat virulensinya.Tujuan: Menganalisis jumlah dan proporsi P.gingivalis saluran akar dan poketlesi endoperio kombinasi murni, lesi endo primer, dan lesi perio primer. Metode:16 sampel diambil dari 3 kelompok, kuantifikasi dengan PCR real-time. Hasil:Jumlah P.gingivalis terbesar pada poket lesi perio primer, proporsi P.gingivalisterbesar pada saluran akar lesi endo primer. Jumlah dan proporsi P.gingivalistidak berbeda bermakna antara saluran akar dan poket lesi endoperio kombinasimurni. Kesimpulan. Jumlah dan proporsi P.gingivalis sebanding antara saluran akar dan poket lesi endoperio kombinasi murni.ABSTRACT Background : P.gingivalis is a periodontium pathogen that can be transferred tothe root canal of the true combined endoperio lesions. Quantity and proportiontakes part in the severity of the disease because of its virulence. Objective: toanalyze the quantity and proportion of P.gingivalis in the root canals and pocketof true combined endoperio lesions, primary endodontic lesions, and primaryperiodontal lesions. Methods 16 samples were taken from 3 groups,quantification with real-time PCR. Results : P.gingivalis largest quantity wasfound in pockets of primary periodontal lesions, P.gingivalis largest proportionwas found in root canals of primary endodontic lesions. There were no significantdifferences in quantity and proportion of P.gingivalis in root canals and pockets oftrue combined endoperio lesions. Conclusion. Quantity and proportion ofP.gingivalis were comparable between the root canals and pockets of true combined endoperio lesions.;Background : P.gingivalis is a periodontium pathogen that can be transferred tothe root canal of the true combined endoperio lesions. Quantity and proportiontakes part in the severity of the disease because of its virulence. Objective: toanalyze the quantity and proportion of P.gingivalis in the root canals and pocketof true combined endoperio lesions, primary endodontic lesions, and primaryperiodontal lesions. Methods 16 samples were taken from 3 groups,quantification with real-time PCR. Results : P.gingivalis largest quantity wasfound in pockets of primary periodontal lesions, P.gingivalis largest proportionwas found in root canals of primary endodontic lesions. There were no significantdifferences in quantity and proportion of P.gingivalis in root canals and pockets oftrue combined endoperio lesions. Conclusion. Quantity and proportion ofP.gingivalis were comparable between the root canals and pockets of true combined endoperio lesions.;Background : P.gingivalis is a periodontium pathogen that can be transferred tothe root canal of the true combined endoperio lesions. Quantity and proportiontakes part in the severity of the disease because of its virulence. Objective: toanalyze the quantity and proportion of P.gingivalis in the root canals and pocketof true combined endoperio lesions, primary endodontic lesions, and primaryperiodontal lesions. Methods 16 samples were taken from 3 groups,quantification with real-time PCR. Results : P.gingivalis largest quantity wasfound in pockets of primary periodontal lesions, P.gingivalis largest proportionwas found in root canals of primary endodontic lesions. There were no significantdifferences in quantity and proportion of P.gingivalis in root canals and pockets oftrue combined endoperio lesions. Conclusion. Quantity and proportion ofP.gingivalis were comparable between the root canals and pockets of true combined endoperio lesions.;Background : P.gingivalis is a periodontium pathogen that can be transferred tothe root canal of the true combined endoperio lesions. Quantity and proportiontakes part in the severity of the disease because of its virulence. Objective: toanalyze the quantity and proportion of P.gingivalis in the root canals and pocketof true combined endoperio lesions, primary endodontic lesions, and primaryperiodontal lesions. Methods 16 samples were taken from 3 groups,quantification with real-time PCR. Results : P.gingivalis largest quantity wasfound in pockets of primary periodontal lesions, P.gingivalis largest proportionwas found in root canals of primary endodontic lesions. There were no significantdifferences in quantity and proportion of P.gingivalis in root canals and pockets oftrue combined endoperio lesions. Conclusion. Quantity and proportion ofP.gingivalis were comparable between the root canals and pockets of true combined endoperio lesions.;Background : P.gingivalis is a periodontium pathogen that can be transferred tothe root canal of the true combined endoperio lesions. Quantity and proportiontakes part in the severity of the disease because of its virulence. Objective: toanalyze the quantity and proportion of P.gingivalis in the root canals and pocketof true combined endoperio lesions, primary endodontic lesions, and primaryperiodontal lesions. Methods 16 samples were taken from 3 groups,quantification with real-time PCR. Results : P.gingivalis largest quantity wasfound in pockets of primary periodontal lesions, P.gingivalis largest proportionwas found in root canals of primary endodontic lesions. There were no significantdifferences in quantity and proportion of P.gingivalis in root canals and pockets oftrue combined endoperio lesions. Conclusion. Quantity and proportion ofP.gingivalis were comparable between the root canals and pockets of true combined endoperio lesions."

"ABSTRAK Latar Belakang: E.faecalis merupakan bakteri saluran akar yang dapat bermigrasi ke jaringan periodonsium pada lesi endo-perio kombinasi murni.Jumlahnya berperan terhadap keparahan penyakit karena sifat virulensinya. Tujuan: Menganalisis tipe strain dan jumlah E.faecalis di saluran akar dan poketlesi endo-perio kombinasi murni, lesi endo primer, dan lesi perio primer. Metode:16 sampel dari 3 kelompok, analisis strain dengan sequencing dan kuantifikasidengan Real Time PCR. Hasil: Terdapat persamaan strain E.faecali,s jumlahterbesar terdapat pada poket lesi endo-perio kombinasi murni. Tidak berbedabermakna antara saluran akar dan poket pada lesi endo-perio kombinasi murni.Kesimpulan; terdapat strain yang sama dan jumlah E.faecalis sebanding antarasaluran akar dan poket lesi endo-perio kombinasi murni.ABSTRACT Background: E.faecalis is a root canal pathogen that can migrate to periodontal tissue in true combined endo-perio lesion. The quantity of E.faecalis takes part inthe severity of the disease because of its virulence. Objective: To analyze thestrain type and quantity of E.faecalis taken from root canal and pocket of truecombined endo-perio lesion, primary endodontic lesion and primary periodontallesion. Methods: 16 samples were taken from 3 groups, strain type was analyzedby sequencing and quantification by Real Time PCR. Results: There weresimilarities of E. faecalis strain. The largest number were found in the pockets oftrue combined endo-perio lesion. There were no significant differences betweenroot canal and pocket of true combined endo-perio lesions. Conclusion: Therewere similarities strain and quantity of E. faecalis were equal between root canaland pocket true combined endo-perio lesions. ;Background: E.faecalis is a root canal pathogen that can migrate to periodontal tissue in true combined endo-perio lesion. The quantity of E.faecalis takes part inthe severity of the disease because of its virulence. Objective: To analyze thestrain type and quantity of E.faecalis taken from root canal and pocket of truecombined endo-perio lesion, primary endodontic lesion and primary periodontallesion. Methods: 16 samples were taken from 3 groups, strain type was analyzedby sequencing and quantification by Real Time PCR. Results: There weresimilarities of E. faecalis strain. The largest number were found in the pockets oftrue combined endo-perio lesion. There were no significant differences betweenroot canal and pocket of true combined endo-perio lesions. Conclusion: Therewere similarities strain and quantity of E. faecalis were equal between root canaland pocket true combined endo-perio lesions. ;Background: E.faecalis is a root canal pathogen that can migrate to periodontal tissue in true combined endo-perio lesion. The quantity of E.faecalis takes part inthe severity of the disease because of its virulence. Objective: To analyze thestrain type and quantity of E.faecalis taken from root canal and pocket of truecombined endo-perio lesion, primary endodontic lesion and primary periodontallesion. Methods: 16 samples were taken from 3 groups, strain type was analyzedby sequencing and quantification by Real Time PCR. Results: There weresimilarities of E. faecalis strain. The largest number were found in the pockets oftrue combined endo-perio lesion. There were no significant differences betweenroot canal and pocket of true combined endo-perio lesions. Conclusion: Therewere similarities strain and quantity of E. faecalis were equal between root canaland pocket true combined endo-perio lesions. ;Background: E.faecalis is a root canal pathogen that can migrate to periodontal tissue in true combined endo-perio lesion. The quantity of E.faecalis takes part inthe severity of the disease because of its virulence. Objective: To analyze thestrain type and quantity of E.faecalis taken from root canal and pocket of truecombined endo-perio lesion, primary endodontic lesion and primary periodontallesion. Methods: 16 samples were taken from 3 groups, strain type was analyzedby sequencing and quantification by Real Time PCR. Results: There weresimilarities of E. faecalis strain. The largest number were found in the pockets oftrue combined endo-perio lesion. There were no significant differences betweenroot canal and pocket of true combined endo-perio lesions. Conclusion: Therewere similarities strain and quantity of E. faecalis were equal between root canaland pocket true combined endo-perio lesions. "

"ABSTRAK Latar Belakang : Enterococcus faecalis merupakan bakteri yang mampu membentuk biofilm dan banyak ditemukan pada kasus kelainan periapeks.Tujuan : Melihat daya antibakteri campuran triantibiotik dibandingkan denganklorheksidin 2% terhadap E. faecalis dalam biofilm. Metode : Menilai kekeruhanlarutan E. faecalis dalam biofilm pasca pemaparan bahan uji, dengan ELISAreader. Hasil : Terdapat daya antibakteri campuran triantibiotik terhadap biofilmbakteri E. faecalis tetapi tidak terdapat perbedaan bermakna dengan klorheksidin2% (p>0.05). Kesimpulan : Daya antibakteri campuran triantibiotik terhadapbiofilm E. faecalis sebanding dengan klorheksidin 2%. ABSTRACT Background : Enterococcus faecalis has the ability to form biofilm and is oftenfound in cases of periapical lesions. Aim: To analyze the effectivity of triantibioticmixture compared to 2% chlorhexidine against biofilm of E. faecalis. Method :Score the turbidity of E. faecalis in biofilm after immersion in antibacterialagent, with ELISA reader. Result : Triantibiotic mixture has antibacterialeffectivity against E. faecalis biofilm but has no significant difference compared to2% chlorhexidine (p>0.05). Conclusion : Antibacterial effectivity of triantibioticmixture against E. faecalis biofilm is equal to2% chlorhexidine. ;Background : Enterococcus faecalis has the ability to form biofilm and is oftenfound in cases of periapical lesions. Aim: To analyze the effectivity of triantibioticmixture compared to 2% chlorhexidine against biofilm of E. faecalis. Method :Score the turbidity of E. faecalis in biofilm after immersion in antibacterialagent, with ELISA reader. Result : Triantibiotic mixture has antibacterialeffectivity against E. faecalis biofilm but has no significant difference compared to2% chlorhexidine (p>0.05). Conclusion : Antibacterial effectivity of triantibioticmixture against E. faecalis biofilm is equal to2% chlorhexidine. ;Background : Enterococcus faecalis has the ability to form biofilm and is oftenfound in cases of periapical lesions. Aim: To analyze the effectivity of triantibioticmixture compared to 2% chlorhexidine against biofilm of E. faecalis. Method :Score the turbidity of E. faecalis in biofilm after immersion in antibacterialagent, with ELISA reader. Result : Triantibiotic mixture has antibacterialeffectivity against E. faecalis biofilm but has no significant difference compared to2% chlorhexidine (p>0.05). Conclusion : Antibacterial effectivity of triantibioticmixture against E. faecalis biofilm is equal to2% chlorhexidine. ;Background : Enterococcus faecalis has the ability to form biofilm and is oftenfound in cases of periapical lesions. Aim: To analyze the effectivity of triantibioticmixture compared to 2% chlorhexidine against biofilm of E. faecalis. Method :Score the turbidity of E. faecalis in biofilm after immersion in antibacterialagent, with ELISA reader. Result : Triantibiotic mixture has antibacterialeffectivity against E. faecalis biofilm but has no significant difference compared to2% chlorhexidine (p>0.05). Conclusion : Antibacterial effectivity of triantibioticmixture against E. faecalis biofilm is equal to2% chlorhexidine. "

"Latar Belakang : Penambahan fluor ke dalam proses PILP memiliki potensi meningkatkan remineralisasi intrafibril dan ekstrafibril kolagen dentin. Tujuan : Penelitian ini bertujuan untuk mengetahui pengaruh penambahan fluor dalam proses PILP terhadap remineralisasi intrafibril dan ekstrafibril kolagen dentin. Metode : 8 sampel blok dentin dibagi ke dalam 4 kelompok: Kelompok 1 demineralized dentin sebagai kontrol, kelompok 2 demineralized dentin disimpan dalam larutan remineralisasi PILP yang ditambahkan fluor 5 ppm, kelompok 3 demineralized dentin disimpan dalam larutan remineralisasi PILP yang ditambahkan fluor 25 ppm, kelompok 4 demineralized dentin disimpan dalam larutan remineralisasi PILP tanpa fluor (0 ppm) Kemudian seluruh sampel disimpan dalam shaking incubator pada suhu 37°C selama 14 hari. Selanjutnya dilakukan pemeriksaan dengan TEM/SAED untuk melihat remineralisasi intrafibril dan ekstrafibril kolagen dentin dan kristalinitas kristal yang dihasilkan. Hasil : Terjadi remineralisasi intrafibril dan ekstrafibril kolagen dentin pada kelompok perlakuan 2, 3, dan 4. Remineralisasi intrafibril dan ekstrafibril terlihat paling padat pada kelompok 2. Terdapat perbedaan kristalinitas kristal di antara kelompok 1, 2, 3, dan 4. Kesimpulan: Penambahan fluor 5 ppm ke dalam proses PILP menghasilkan remineralisasi intrafibril dan ekstrafibril kolagen dentin. Remineralisasi yang dihasilkan berupa kristal apatit dengan tingkat kristalinitas yang padat.

---

Background: Fluoride addition into PILP process has the potential to increase intrafibrillar and extrafibrillar dentin collagen remineralization. Objective: This research aim to evaluate the influence of fluoride addition into PILP process towards intrafibrillar and extrafibrillar dentin collagen remineralization. Methods: 8 dentin blocks were divided into 4 sample groups. Group 1 (demineralized dentin) as control group, group 2 is demineralized dentin that were soaked in PILP process with 5 ppm fluoride addition, group 3 is demineralized dentin that were soaked in PILP process with 25 ppm fluoride addition, and group 4 is demineralized dentin that were soaked in PILP process with no fluor (0 ppm) addition. All of the samples were incubated in shaking incubator at 37o C for 14 days. Result: Intrafibrillar and extrafibrillar dentin collagen remineralization occurred in group 2, 3, and 4. The most dense intrafibrillar and extrafibrillar dentin collagen remineralization was seen in group 2. There are differences of crystal's crystallinity between group 1, 2, 3, and 4. Conclusion: 5 ppm fluoride addition into PILP process produced intrafibrillar and extrafibrillar dentin collagen remineralization. The remineralization were consisted by high-density apatite crystals."

"Latar Belakang: Kebocoran mikro tepi restorasi resin komposit dapat menyebabkan terjadinya perubahan warna dan karies sekunder. Salah satu upaya menguranginya adalah teknik rebonding pasca finishing dan polishing. Tujuan: Menganalisis kebocoran mikro tepi restorasi resin komposit setelah dilakukan teknik rebonding menggunakan surface sealant dan bonding agent. Metode: 60 gigi premolar dipreparasi pada bagian bukal dengan diameter kavitas 3mm dan kedalaman 2mm. Sampel penelitian dibagi menjadi dua kelompok secara acak untuk dilakukan rebonding. Kelompok 1 dilakukan rebonding menggunakan surface sealant dan kelompok 2 menggunakan bonding agent. Pengukuran penetrasi zat warna biru metilen 1% dilakukan setelah thermocycling. Hasil: Terdapat perbedaan yang bermakna (p<0,05) antara jenis bahan rebonding dengan skala kebocoran, dimana kebocoran mikro tepi restorasi paling sedikit terdapat pada kelompok 1 dibandingkan kelompok 2. Kesimpulan: Prosedur rebonding dengan aplikasi surface sealant dapat menutup kebocoran mikro pada tepi restorasi resin komposit pasca finishing dan polishing lebih baik dibandingkan aplikasi bonding agent.

---

Background: Microleakage at the marginal area of composite resin restoration can lead to discoloration and secondary caries. Performing rebonding after finishing and polishing can reduce microleakage of composite resin restoration.

Aim: The aim of this study was to analyse the microleakage of composite resin restoration after rebonding with surface sealant and bonding agent.

Methods: Cavity preparation was performed on the buccal side of sixty human premolar teeth with 3mm diameter and 2mm depth. Samples were randomly divided into two groups for rebonding with different materials. Samples in group 1 were rebonded with surface sealant, while samples in group 2 using bonding agent. The microleakage was measured using 1% methylene blue after thermocycling procedure.

Results: Group 1shows less microleakage than group 2, statistic analysis show significant difference between the two groups ( p<0.05).

Conclusion: Rebonding procedure with surface sealant can reduce marginal microleakage in composite resin restoration better than bonding agent."