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All Journal Jurnal Kedokteran Gigi Universitas Padjadjaran Padjadjaran Journal of Dentistry
Denny Nurdin
Universitas Padjadjaran
Biochemistry, Genetics & Molecular Biology Dentistry Health Professions Immunology & microbiology Medicine & Pharmacology Public Health

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Journal : Padjadjaran Journal of Dentistry

 1 
Effect of packaged strawberry juice on the surface roughness of nanofilled type composite resin Rizky Amelia; Opik Taofik Hidayat; Denny Nurdin
Padjadjaran Journal of Dentistry Vol 25, No 3 (2013): November 2013
Publisher : Faculty of Dentistry Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol25no3.26812

Abstract

Introduction: The hard tissue of the teeth is resistant to heat and acid,  so that the teeth have an important role as a material consideration of forensic dentistry. The humans have the same shape of the teeth around one in two billion. The stimuli of burn with high temperature and sour can be change the picture of macroscopic and microscopic tooth. This is the subject of an interesting comparison in the interests of justice and identification of dentistry. Methods: This research was a quasi experiment to know a change of microscopic teeth on the hard cases tooth-burning and the case hard acid treatment. The sample used were seven teeth, with details of one normal as a comparison, three teeth burned and three teeth soaked in a solution of water of accu. Observations were made using the microscope at 40x enlarged on each tooth. The tooth was documented by means of a photographed and compared with healthy teeth. Results: The results of this study was obtained by observing and comparing the microscopic structure and the obtained differences in the teeth and treated with the picture of normal teeth. Conclusion: Conclusion of this research is on the tooth are burned was visible loss of enamel at the cement-enamel junction as a result of the process of carbonization heat exposure so as to cause a breach of micro on the outer layer of the tooth enamel and thinning of dentin tubules, while the teeth are in the soak water accu (strong acid) seen change in color of enamel, micro cracks due to defective enamel and depletion of tubulus dentine and loss of boundary between the cementum and dentine.
Antibacterial activity of strawberry fruit extract against Streptococcus sanguinis ATCC 10556) Denny Nurdin; Hendra Dian Adhita Dharsono; Fajar Fatriadi; Elvi Sahara; Rahmi Alma Farah Adang; Yolanda Dwiutami Gondowidjojo; Dikdik Kurnia
Padjadjaran Journal of Dentistry Vol 34, No 1 (2022): March
Publisher : Faculty of Dentistry Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol34no1.37043

Abstract

Introduction: Streptococcus sanguinis is a facultative anaerobic Gram-positive bacteria known as a pioneer that plays a role in creating the biofilm in the oral cavity. Strawberry fruit (Fragaria x ananassa) is an edible fruit widely used for the study as their active compound synergy to improve health. This study aims to analyse the antibacterial activity of strawberry fruit against S. sanguinis (ATCC 10556). Methods: An explorative study was conducted with high concentration methanol extract from strawberry fruit. Antibacterial activity was tested on the methanol extract; afterwards, the extract was fractionated and divided into three fractions: water, ethyl acetate, and hexane. Zone of inhibition was used to assess the most effective fraction among those three, then continued by testing for Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC). Results: Inhibitory zone of the ethyl acetate fraction from strawberry fruit 1%, 2%, 3% ,4% and 5% sequentially were 7.3 mm,10.2 mm, 12.3 mm, 16.3 mm and 16.1 mm. Ethyl acetate fraction of 4% was the most effective to create the zone of inhibition with a size of 16.3 mm compared to the others. The Minimum Inhibitory Concentration (MIC) value was 0.25%. It was obtained by diluting a 4% ethyl acetate fraction on a microplate. The Minimum Bactericidal Concentration (MBC) was 2%. Conclusion: Ethyl acetate fraction was an effective fraction from strawberry fruit and had antibacterial activity against S. sanguinis with the inhibitory zone in the concentration of 4%, MIC of 0.25%, and MBC of 2%.
Antibacterial potential of strawberries and basil extracts combination against Streptococcus sanguinis (ATCC 10556) Hendra Dian Adhita Dharsono; Denny Nurdin; Fajar Fatriadi; Yolanda Dwiutami Gondowidjojo; Ellizabeth Yunita; Eti Apriyanti
Padjadjaran Journal of Dentistry Vol 33, No 3 (2021): November
Publisher : Faculty of Dentistry Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol33no3.35894

Abstract

Introduction: Streptococcus sanguinis is a commensal microorganism as well as a pioneer colony in forming dental plaque. Oral biofilm formation can be prevented by a mechanical cleaning procedure followed by the use of mouthwash. The current gold standard for mouthwash is chlorhexidine. Nevertheless, it has side effects that are not recommended for long-term use. Previous studies had proven that herbal-based mouthwashes such as basil leaves (Ocimum basilicum) and strawberry fruit (Fragaria x ananassa) have been shown to have antibacterial properties. The effectivity of antibacterial activity phenomenon in combined extracts has been reported in other studies. This research aims to observe the antibacterial potential of the F. x ananassa and O. basilicum extract combinations against S. sanguinis (ATCC 10556). Methods: The sample of this study was a combination of F. x ananassa and O. basilicum extract, which initially screened for their antibacterial activities. Antibacterial activities of F. x ananassa and O. basilicum extracts against S. sanguinis were observed using Kirby Bauer method, while Minimum Inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) by serial microdilution method. The 2% concentration from each extract was combined in 1:1, 1:2, and 2:1 volume ratio variations then tested for inhibitory zones, MIC, and MBC. Results: F. x ananassa extract had 0.125% and 0.25% for MIC and MBC respectively, while O. basilicum extract showed the value of MIC and MBC as 0.031% and 0.063% against S. sanguinis (ATCC 10556). The extract combinations in 1:1, 1:2, and 2:1 volume ratio variations showed 0.016% for MIC and 0.031% for MBC. Conclusions: It was concluded that combining extracts of 2 % F. x ananassa and 2% O. basilicum in various ratios were observably to have the antibacterial potential against S. sanguinis (ATCC 10556).
Influence of alcohol-containing mouthwash and alcohol-free mouthwash towards the hybrid composite restoration materials surface hardness Adlina Hasna Munawar; Renny Febrida; Denny Nurdin
Padjadjaran Journal of Dentistry Vol 25, No 3 (2013): November 2013
Publisher : Faculty of Dentistry Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (204.685 KB) | DOI: 10.24198/pjd.vol25no3.15574

Abstract

Mouthwash is widely used by the community to maintain oral health. Beside the benefit provided, both alcohol-containing mouthwash and alcohol-free mouthwash have negative effects on the composite resin restorative materials, which can affect the surface hardness. One of composite types is hybrid type which is superior in physical and mechanical properties as a restorative material. The aim of this study was to determined the effect of alcohol-containing mouthwash and alcohol-free mouthwash towards the surface hardness of hybrid composite restorative material. This study used 15 disc-shaped specimens of hybrid composite with the size of 6 mm diameter and 4 mm thickness and divided into three treatment groups immersion, in the alcohol-containing mouthwash (A), alcohol-free mouthwash (B), and artificial saliva (C) as control for 12 hours, which surface hardness was further tested using Vickers hardness test. The mean of hardness values of group: A 24.9 VHN; B: 27.2 VHN; and C: 28.4 VHN. The results of statistical tests One-Way ANOVA showed there were significant differences in the hardness values among the three treatment groups (p<0,05). From this study concluded that both alcohol-containing mouthwash and alcohol-free mouthwash were decreasing the surface hardness of hybrid composite restorative material.
Mixture of Indonesian White Portland Cements, Bi2O3, and Light Cured Methacrylate-based resin as a potential candidate for pulp capping material Denny Nurdin; Beactris Lamria Simanjuntak; Rahmi Alma Farah Adang; Arief Cahyanto
Padjadjaran Journal of Dentistry Vol 35, No 1 (2023): March 2023
Publisher : Faculty of Dentistry Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol35no1.43207

Abstract

ABSTRACT Introduction: The bioactivity property of pulp capping materials is determined by the hydroxyl ion release ability, which may alter the environmental pH to become alkaline. Calcium silicate-based materials are antibacterial, able to induce reparative dentin and have a good bacteria-tight seal. The poor handling of calcium silicate-based materials can be overcome by adding resin, so the materials will be easier to handle. Therefore, the purpose of this study was to synthesize a mixture of Indonesian White Portland  Cements, Bi2O3, Light Cured Methacrylate-based Resin and analyze its hydroxyl ion release ability. Methods: The study wasquasi experimental. Sample in this research is the Indonesian White Portland Cements. The Indonesian White Portland Cements, Bi2O3 mixture was prepared using the simple solution method and mixed with Light Cured Methacrylate-based Resin. Population was WPC, Bi2O3 and light cured methacrylate-based resin. The sample’s ability to release hydroxyl ions was measured using a calibrated pH meter and titration test 60, 120, 180 and 320 minutes. Analyzed Results: This study showed that the mixture of Indonesian White Portland Cements, Bi2O3, Light Cured Methacrylate-based  Resin had an initial pH of 11.04 and increased to its peak on 168 hours mark, or on day seven, to pH 11,77 with hydroxyl ion release value of 10-2.23 Conclusions: The mixture of Indonesian White Portland Cements, Bi2O3, Light Cured Methacrylate-based Resin has an alkaline pH, is able to release hydroxyl ion and has a potential candidate for pulp capping material.Keywords :Indonesia white portland cements, Bi2O3, light cured methacrylate-based resin, hydroxyl ion release ability
Co-Authors Adlina Hasna Munawar Anna Muryani Arief Cahyanto Beactris Lamria Simanjuntak Dikdik Kurnia Ellizabeth Yunita Elvi Sahara Eti Apriyanti Fajar Fatriadi Hendra Dian Adhita Dharsono Hendra Dian Adhita Dharsono Irene Mariani Nurisawati Opik Taofik Hidayat Rahmi Alma Farah Adang Renny Febrida Rizky Amelia Yolanda Dwiutami Gondowidjojo