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"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."

"Latar Belakang: Hipersensitif dentin dipengaruhi oleh akumulasi plak pada permukaan gigi dan penetrasi bakteri pada tubulus dentin. Tujuan: Menganalisis proporsi serotipe c Streptococcus mutans dan tingkat keasaman di dalam plak dan saliva penderita resesi gingiva yang hipersensitif dentin dengan penderita resesi gingiva yang non hipersensitif. Metode: Tiga puluh enam sampel plak dan saliva dibagi dalam dua kelompok yaitu kelompok hipersensitif dan non hipersensitif. Dilakukan ekstrak DNA sampel, pengukuran pH sampel dan evaluasi amplifikasi serotipe c Streptococcus mutans dengan alat Real Time PCR. Hasil: Proporsi serotipe c Streptococcus mutans di dalam plak dan saliva tidak berbeda pada penderita resesi gingiva dengan hipersensitif dentin maupun non hipersensitif, Kesimpulan: Proporsi serotipe c Streptococcus mutans plak dan saliva tidak mempengaruhi hipersensitif dentin.

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Background: dentin hypersensitivity is affected by the accumulation of plaque on the tooth surface and penetration of bacteria in the dentinal tubules.

Objective: To analyze the proportion of serotype c Streptococcus mutans and the level of acidity in plaque and saliva of patients with hypersensitive dentin and non hypersensitive.

Methods: Thirty-six plaque and saliva samples were divided into two groups: the hypersensitive and non-hypersensitive. Extract the sample DNA, measure the acidity levels and evaluate serotype c Streptococcus mutans amplification with Real Time PCR.

Results: The proportion of serotype c Streptococcus mutans in plaque and saliva is not significantly different in the patients with gingival recession both hypersensitive and non-hypersensitive.

Conclusions: The proportion of serotype c Streptococcus mutans in plaque and saliva are equally well both in hypersensitive and non hypersensitive cases."

"Latar belakang: Silver Diamine Fluoride dan Laser CO2 merupakan alternatif perawatan yang dapat dipilih untuk menangani hipersensivitas denton.Tujuan: Mengetahui efektivitas penggunaan Silver Diamine Fluoride dan Laser CO2 dalam menurunkan skor hipersensitivitas dentin. Metode: Penelitian ini menggunakan desain single blind, split-mouth randomized controlled trial yang melibatkan 16 subjek dengan keluhan gigi sensitif dan memiliki minimal dua gigi yang positif terhadap uji evaporatif atau uji thermal. Subjek akan diaplikasikan Silver Diamine Fluoride dan Laser CO2. Pengukuran hipersensitivitas dentin dilakukan dengan stimulus evaporatif dan termal dan DIAGNOdent pasca aplikasi, 7 hari dan 14 hari setelah aplikasi. Hasil: Terjadi penurunan skor Hipersensitivitas dan DIAGNOdent yang berbeda bermakna terhadap data baseline segera pasca aplikasi, 7 hari dan 14 hari pasca aplikasi p=0,000 untuk stimulus evaporatif, termal dan DIAGNOdent . Tetapi tidak terdapat perbedaan bermakna secara statistik antara aplikasi Silver Diamine Fluoride dan aplikasi Silver Diamine Fluoride dan Laser CO2 pada setiap pengukuran. Kesimpulan: Penggunaan Silver Diamine Fluoride dan Laser CO2 efektif dalam menurunkan skor hipersensitivitas dentin.

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Background: Silver Diamine fluoride and CO2 Laser are a new alternative treatment for dentin hypersensitivity.

Objective: To evaluate the efficacy of Silver Diamine Fluoride and CO2 Laser in reducing dentin hypersensitivity score.

Methods: The study used a single blind, split mouth design randomized controlled trial involving 16 subjects with symptoms of sensitive teeth and have at least two hypersensitive teeth which are positive to evaporative or thermal test. The subject teeth surface will be applied Silver diamine fluoride and CO2 Laser will be applied to the subject teeth surface.

Results: This clinical study demonstrated that the application of Silver Diamine Fluoride and CO2 Laser reduce dentin hypersensitivity significantly in each measurement p 0,000 for evaporative and thermal stimulus. But there is no statistically significant differences between the two application.

Conclusion: The usage of Silver Diamine Fluoride and CO2 Laser are effective to reduce the degree of dentin hypersensitivity. "

"ABSTRAKLatar Belakang : Ekstrak Biji AnggurEBA mengandung proantosianidin sebagai pengikat silang kolagen yang menentukan sifat mekanik dentin.Tujuan : Menganalisis pengaruh larutan EBA terhadap kekuatan lentur dentin saluran akar.Metode : 90 lempeng dentin saluran akar dibagi menjadi 3 kelompok direndam larutan EBA, NaOCl dan aquabides. Dilakukan uji kekuatan lentur dentin dengan Universal Testing Machine.Hasil : Kekuatan lentur tertinggi pada kelompok larutan EBA, terendah pada kelompok NaOCl. Tidak terdapat perbedaan bermakna antara kelompok larutan EBA dan aquabides (p>0.05).Kesimpulan : Nilai kekuatan lentur dentin saluran akar pada larutan EBA lebih tinggi dibandingan dengan larutan NaOCl.

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ABSTRACT

Background : Grape Seed Extract (GSE) contains proanthocyanidin as collagen crosslinking which determines the mechanical properties of dentin.

Objective: To analyze the effect of the GSE solution to the flexural strength of root canal dentin.

Methods : 90 root canal dentin slabs were divided into 3 groups, immersed in GSE solution , NaOCl and aquabidest . Dentin flexural strength test measured by Universal Testing Machine.

Results : The highest flexural strength was found in GSE solution group , the lowest in the group of NaOCl . There were no significant differences between GSE groups and aquabidest group ( p > 0.05 ).

Conclusion : The value of flexural strength of root canal dentin found in GSE solution group was higher when compared with NaOCl solution."

"Penelitian bertujuan mengetahui pengaruh besar tekanan dan lama scrubbing terhadap kuat rekat geser self adhering flowable composite pada dentin. Self adhering flowable composite diaplikasikan dengan tekanan scrubbing 1, 2, dan 3 gram masing-masing selama 15, 20, dan 25 detik. Resin komposit diaplikasikan secara inkremental. Polimerisasi dengan sinar selama 20 detik. Kuat rekat geser diuji menggunakan Testing Machine dan dianalisa dengan ANOVA diikuti Post Hoc Test Bonferroni. Daerah patahan diobservasi menggunakan SEM. Kuat rekat geser tertinggi pada tekanan scrubbing 3 gram selama 25 detik. Perbedaan besar tekanan dan waktu saat scrubbing mempengaruhi kuat rekat geser self adhering flowable composite pada dentin.

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Effect of different scrubbing pressure and duration on shear bond strength of self adhering flowable composite to dentin was evaluated. Self adhering flowable composite was applied on dentin with 1, 2, and 3 grams pressure for 15, 20, and 25 seconds. Composite was constructed incrementally. Polymerization for 20 seconds. Shear bond strength was tested with a Testing Machine and analyzed by ANOVA and Bonferroni. Fractured area was observed with a SEM. The highest shear bond strength was obtained in 3 grams scrubbing pressure for 25 seconds. The different scrubbing pressure and duration influenced shear bond strength of self adhering flowable composite to dentin."

"Latar Belakang: Hidrogen peroksida 35% sebagai bahan aktif internal bleachingdapat menghasilkan radical oxygen species (ROS). Radikal bebas ini dapat membentuk gelembung yang terperangkap di dalam tubuli dentin sehingga menganggu penetrasi resin tag ke dalam tubuli dentin. Terhambatnya penetrasi resin tag  dapat menurunkan kekuatan ikatan dan meningkatkan kebocoran mikro pada restorasi resin komposit. Radikal bebas dari proses bleaching dapat dieliminasi dengan pengaplikasian antioksidan. Antioksidan yang banyak dikembangkan saat ini untuk mengeliminasi radikal bebas pasca bleaching adalah antioksidan alami esktrak teh hijau. Konsentrasi dan waktu aplikasi agen antioksidan merupakan faktor penting untuk meningkatkan efek antioksidannya. Pemilihan konsentrasi ekstrak teh hijau 10% didasarkan pada penelitian sebelumnya yang menyatakan penggunakan ekstrak teh hijau 10% selama 10 menit efektif dalam meningkatkan shear bond strength dan menurunkan pembentukan celah mikro. Penggunaan konsentrasi ekstrak teh hijau 35% yang sebanding dengan konsentrasi hidrogen peroksida 35% diharapkan dapat menghilangkan residu radikal bebas dan meningkatkan kedalaman penetrasi resin tag. Tujuan: Membandingkan pengaruh aplikasi antioksidan ekstrak teh hijau dengan konsentrasi yang berbeda selama 2 menit terhadap kedalaman penetrasi resin tag pada dentin pasca internal bleaching.Metode: Terdapat 5 kelompok penelitian yang terdiri dari 2 kelompok perlakuan, 1 kelompok kontrol negatif, dan 2 kelompok kontrol positif. Kemudian dilakukan prosedur walking bleach dengan gel H2O2 35%. Setelahnya diaplikasikan gel ekstrak teh hijau 10 % dan 35 % selama 2 menit. Sampel dietsa dan diaplikasikan bonding dengan teknik etch-and -rinse 2 langkah. Pengamatan kedalaman penetrasi resin tag dilakukan dengan Confocal Laser Scanning Microscopy. Hasil: Terdapat perbedaan bermakna kedalaman penetrasi resin tag antara kelompok TH 35% dengan TH 10% (p < 0.05), dimana kelompok TH 35% menghasilkan penetrasi resin tag yang lebih panjang secara signifikan dibandingkan dengan kelompok TH 10%

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Background: Hydrogen peroxide 35% as an active material for internal bleaching can produce radical oxygen species (ROS). These free radicals can forming bubbles that are trapped inside the dentinal tubules, interfering resin tag penetration into the dentinal tubules. Inhibition of resin tag penetration can reduce bond strength and increase microleakage of composite resin restorations. Free radicals from the bleaching process can be eliminated by the application of antioxidants. Recently, Antioxidants that are being developed to eliminate free radicals after bleaching are natural antioxidants from green tea extracts. The concentration and time of application of antioxidant agents are important factors to enhance their antioxidant effects. The choice of 10% green tea extract concentration was based on the previous study, which stated that applying of 10% green tea extract for 10 minutes was effective in increasing shear bond strength and reducing the formation of microleakage. The application of 35% concentrated green tea extract to eliminate free radicals that is produced by 35% concentrated hydrogen peroxide is expected can remove free radical residues and increase the resin tag penetration depth.

Aims: Comparing the effect of green tea extract antioxidant application with different concentrations for 2 minutes on the resin tags penetration depth on dentin after internal bleaching.

Methods: There were 5 groups consisting of 2 treatment groups, 1 negative control group, and 2 positive control groups. Then the walking bleach procedure was appplied with 35% of H2O2 gel. After that, 10% and 35% of green tea extract gel was applied for 2 minutes. The sample was etched and bonded using 2-step etch-and-rinse technique. Then the resin tag penetration depth was determined using Confocal Laser Scanning Microscopy.

Results: There was a significant difference resin tag penetration depth between the TH 35% group and the TH 10% group (p < 0.05). The TH 35%  group resulted in a significantly longer resin tag penetration compared to the  TH 10% group."

"The aim of this research is to see the effect of various dentin conditioners (phosphoric acid) to the bond strength between resin adhesive HNPM/TEGDMA (2 Hydroxy-3,2-Napthoxy-Propyl Methacrylate/Trietilen Glikol di Methacrylate) and dentin tissue of bovine teeth. Dentin conditioner that was used are phosphoric acid solution 10%, 25%, 35% (Group A1, A2, A3). Specimens was divided into 3 Groups, each group has 10 specimens. Bond strength test used "Universal Testing Machine". A G 5000 and SHIMADZU type. The result of this research shows average differences of bond strength of each group. Anova test there is a significant difference (8.485 and p < 0,05). Double comparison Tukey test among groups generally are significant different (p<0,05) except between A2 and A3 group. The result of the research states there are effects of various dentin conditioners to the bond strength between resin adhesive NHPM/TEGDMA and dentin tissue."

"Ketahanan ikatan resin komposit-dentin merupakan salah satu penentu keberhasilan restorasi resin komposit. Tujuan penelitian ini adalah menganalisis efek klorheksidin terhadap degradasi kekuatan ikat resin kompositdentin. Metode: Dua puluh empat sampel dentin yang diambil dari mahkota gigi premolar, dibagi menjadi tiga kelompok yang diberikan perlakuan berbeda. Kelompok I diberi perlakuan bahan bonding tanpa klorheksidin, kelompok II diberi perlakuan klorheksidin dan bonding, kelompok III diberi perlakuan bonding mengandung klorheksidin, pada tiap kelompok dibagi menjadi 2 sub-kelompok yaitu kelompok tanpa direndam dan kelompok yang direndam NaOCl 10% selama satu jam, sehingga didapat enam sub-kelompok. Kemudian seluruh kelompok di ukur kekuatan ikat gesernya menggunakan Universal Testing Machine. Satu sampel dari setiap sub-kelompok dilakukan Scanning Electron Microscope (SEM). Data dianalisa statistik dengan uji hipotesis Kruskal Wallis yang dilanjutkan dengan uji Mann-Whitney. Hasil: rerata kekuatan ikat geser sebelum perendaman NaOCl 10% tertinggi kelompok I sedangkan rerata kekuatan ikat geser setelah perendaman NaOCl 10% tertinggi pada kelompok III. Terdapat perbedaan bermakna antara kelompok I terhadap kelompok II dan antara kelompok II terhadap kelompok III. Kesimpulan: Klorheksidin mempunyai efek terhadap pengurangan degradasi kekuatan ikat geser resin komposit-dentin.

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Resilience of composite resin-dentin bonding known as one of success composite resin restoration determinants. The purpose of this study was to analyze the effect of chlorhexidine on reducing the degradation of composite resin-dentin shear bond strength.

Methods: Twenty-four premolar crowns were divided into three groups then given different treatments. Group I was treated material bonding without chlorhexidine, group II was treated with chlorhexidine and bonding, group III was treated with chlorhexidine-contained bonding. Each group was divided into two sub-groups: the group without immersion of NaOCl 10% and the group with immersion of NaOCl 10% for one hour, then it were obtained six sub-groups. After twenty-four hours, shear bond strengths measured using Universal Testing Machine. A sample of each group was photographed with Scanning Electron Microscope (SEM). Statistical analysis was done by Kruskal Wallis test, then followed by Mann Whitney test to determine significance between groups.

Results: The mean value of shear bond strength before immersion of NaOCl 10% was highest on Group I, while the mean value of shear bond strength after immersion of NaOCl 10% was highest on Group III. There are significant differences between Group I with Group II and between Group II with Group III.

Conclusion: Chlorhexidine have an effect on reducing the degradation of shear bond strength of resin-dentin bonding."

"ABSTRAKLatar belakang: Ketahanan ikatan resin komposit-dentin merupakan salah satupenentu keberhasilan restorasi resin komposit. Tujuan penelitian ini adalahmenganalisis efek klorheksidin terhadap degradasi kekuatan ikat resin kompositdentin.Metode: Dua puluh empat sampel dentin yang diambil dari mahkota gigipremolar, dibagi menjadi tiga kelompok yang diberikan perlakuan berbeda.Kelompok I diberi perlakuan bahan bonding tanpa klorheksidin, kelompok IIdiberi perlakuan klorheksidin dan bonding, kelompok III diberi perlakuan bondingmengandung klorheksidin, pada tiap kelompok dibagi menjadi 2 sub-kelompokyaitu kelompok tanpa direndam dan kelompok yang direndam NaOCl 10%selama satu jam, sehingga didapat enam sub-kelompok. Kemudian seluruhkelompok di ukur kekuatan ikat gesernya menggunakan Universal TestingMachine. Satu sampel dari setiap sub-kelompok dilakukan Scanning ElectronMicroscope (SEM). Data dianalisa statistik dengan uji hipotesis Kruskal Wallisyang dilanjutkan dengan uji Mann-Whitney. Hasil: rerata kekuatan ikat gesersebelum perendaman NaOCl 10% tertinggi kelompok I sedangkan rerata kekuatanikat geser setelah perendaman NaOCl 10% tertinggi pada kelompok III. Terdapatperbedaan bermakna antara kelompok I terhadap kelompok II dan antarakelompok II terhadap kelompok III. Kesimpulan: Klorheksidin mempunyai efekterhadap pengurangan degradasi kekuatan ikat geser resin komposit-dentin.

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ABSTRACTBackground: Resilience of composite resin-dentin bonding known as one ofsuccess composite resin restoration determinants. The purpose of this study was toanalyze the effect of chlorhexidine on reducing the degradation of compositeresin-dentin shear bond strength. Methods: Twenty-four premolar crowns weredivided into three groups then given different treatments. Group I was treatedmaterial bonding without chlorhexidine, group II was treated with chlorhexidineand bonding, group III was treated with chlorhexidine-contained bonding. Eachgroup was divided into two sub-groups: the group without immersion of NaOCl10% and the group with immersion of NaOCl 10% for one hour, then it wereobtained six sub-groups. After twenty-four hours, shear bond strengths measuredusing Universal Testing Machine. A sample of each group was photographed withScanning Electron Microscope (SEM). Statistical analysis was done by KruskalWallis test, then followed by Mann Whitney test to determine significancebetween groups. Results: The mean value of shear bond strength beforeimmersion of NaOCl 10% was highest on Group I, while the mean value of shearbond strength after immersion of NaOCl 10% was highest on Group III. There aresignificant differences between Group I with Group II and between Group II withGroup III. Conclusion: Chlorhexidine have an effect on reducing the degradationof shear bond strength of resin-dentin bonding"

"ABSTRAKLatar Belakang: Kebocoran mikro tumpatan resin komposit dengan dentin seringkali diakibatkan kerusakan serat kolagen dentin pada lapisan hybrid. Tujuan dari penelitian ini untuk mengevaluasi pengaruh larutan ekstrak biji anggur (EBA) sebagai bahan biomodifikasi dentin untuk mencegah kebocoran mikro antara resin komposit dan dentin.Metode: 52 spesimen dentin dibagi 2 kelompok. Kelompok 1 aplikasi larutan EBA selama 30 detik setelah etsa. Kelompok 2 sebagai kontrol. Analisis data dengan uji Mann-Whitney.Hasil: Kebocoran mikro kelompok larutan EBA lebih besar secara statistik berbeda bermakna dengan kontrol.Kesimpulan: Aplikasi larutan EBA setelah pengaplikasian etsa dapat meningkatkan kebocoran mikro antara tumpatan resin komposit dengan dentin.

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ABSTRACT

Background : Microleakage of composite resin and dentin frequently caused by breakdown of collagen matrix at hybrid layer. The purpose of this study is to evaluate the influence grape seed extract (GSE) solution as dentin biomodification against microleakage between composite resin and dentin.

Method : 52 dentin specimen divided into 2 groups. Groups 1 application GSE solution for 30 second after etching. Group 2 as control group.

Result : GSE solution group significantly increase microleakage between composite resin and dentin compare to control group.

Conclusion : Application of GSE solution after ethcing can increase microleakage between composite resin and dentin."