scholarly journals Comparison of Candida albicans colony amount in heat-cured acrylic and thermoplastic nylon resin after immersion in Ulee Kareng coffee (Coffea robusta)

2017 ◽  
Vol 29 (1) ◽  
Author(s):  
Iin Sundari ◽  
Ridha Andayani ◽  
Novriyanti Fatimah Harahap
Keyword(s):  
Candida Albicans ◽  
Base Material ◽  
Acrylic Resin ◽  
T Test ◽  
Test Results ◽  
Denture Base ◽  
Acrylic Resins ◽  
Experimental Laboratory ◽  
Coffea Robusta ◽  
Colony Counter

Introduction: Heat-cured acrylic resin is the most often used material in the manufacture of denture base. Along with the development of science and technology, to overcome the shortcomings of heat-cured acrylic resin, repairment of denture base material was done, one of them is a thermoplastic nylon resin. On the use of denture often found Candida albicans attached to the denture. This study aimed to determine the comparison of the amount of Candida albicans colony on heat-cured acrylic and thermoplastic nylon resin after immersed in the Ulee Kareng coffee (Coffea robusta). Methods: The number of specimens in this study were 8 specimens; 4 Meliodent® heat-cured acrylic resins and 4 Bio Tone® thermoplastic nylon resins with size of 10x10x2 mm. The methods of this study was experimental laboratory. The specimens were stored in a solution of Ulee Kareng coffee (Coffea robusta) for 7 days. Each specimen was contaminated with Candida albicans, then the number of Candida albicans colony was counted with Colony counter, from threshing results of heat-cured acrylic and thermoplastic nylon resins. Data were analyzed with unpaired t test. Results: Unpaired t test results showed that there were significant differences (p<0.05) between the number of colonies of Candida albicans in heat-cured acrylic resin (4.5 CFU/ml) and thermoplastic nylon resin (1.5 CFU/ml) after both immersed in the Ulee Kareng coffee (Coffea robusta). Conclusion: The amount of Candida albicans colony on heat-cured acrylic resin was higher than on thermoplastic nylon resin.

scholarly journals Disinfection Effect of 10% Ricinus Communis Oil on Candida Albicans Counts of Heat Polymerized Acrylic Resin

2021 ◽  
Vol 24 (1) ◽  
pp. 6-10
Author(s):  
Putri Welda Utami ◽  
Nurdiana
Keyword(s):  
Candida Albicans ◽  
Ricinus Communis ◽  
Base Material ◽  
Acrylic Resin ◽  
Biological Properties ◽  
Chlorhexidine Gluconate ◽  
P Value ◽  
Denture Base ◽  
Post Test ◽  
Experimental Laboratory

Dentures is used to replace tooth loss. The most used denture base material is acrylic resin. The biological properties of acrylic resins give microorganisms the ability to colonize. Certain type of microorganism often found at the dentures base is Candida albicans. Denture’s disinfection is usually used to reduce Candida albicans. One of natural source that now is being widely researched is Ricinus communis oil. The purpose of this study was to analyze disinfection effect of Ricinus communis oil 10% on Candida albicans counts on heat polymerized acrylic resin. This research is an experimental laboratory study with a post-test only design. Samples was heat polymerization acrylic resin plates measuring 10 x 10 x 1 mm were made in the Department of Prosthodontic Faculty of Dentistry, Universitas Sumatera Utara with 10 plates for each for 10% Ricinus communis oil group and 0.2% chlorhexidine gluconate group (control). The Candida albicans colonies count was carried out in the Microbiology Laboratory, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara using colony counter. The data obtained was statistically count with the Kruskal-Wallis Test. The result showed the decrease in Candida albicans count with the highest value in the 10% Ricinus communis oil group is 9 x 100 CFU/ml and the highest value in the 0.2% chlorhexidine gluconate group is 0 x 100 CFU/ml. The Kruskal-Wallis test showed significant results with p value of 0.0001 (p <0.05) indicating there was a disinfection effect of 10% Ricinus communis oil and 0.2% chlorhexidine gluconate on Candida albicans count of heat polymerized acrylic resin. The study concluded that 10% Ricinus communis oil effective at decreasing Candida albicans count.

scholarly journals THE IMMERSION OF ACRYLIC RESIN WITH INJECTION MOULDING TECHNIQUE ON LOOSE DENTURES DIMENSIONAL CHANGE

2019 ◽  
Vol 3 (1) ◽  
pp. 6
Author(s):  
Endang Kusdarjanti ◽  
Mia Laksmi L. ◽  
Okti Setyowati
Keyword(s):  
Injection Molding ◽  
Base Material ◽  
Acrylic Resin ◽  
Dimensional Change ◽  
Homogeneity Test ◽  
Test Results ◽  
Denture Base ◽  
Acrylic Resins ◽  
Normality Test ◽  
Better Than

Background: Acrylic resin is the most commonly used denture base material. One disadvantage is that it can absorb water that can cause changes in dimensions. Changes in the dimensions of acrylic resin are influenced by processing acrylic resin. At present injection molding techniques are known to be better than compression molding. Dimension changes due to water absorption occur in the first 7 days and interval intervals of up to 12 days. Purpose: this study was to determine whether immersion of acrylic resin with Injection molding techniques had an effect on changes in dimensions. Method: The study was conducted on acrylic resin test rods with a size of 25 mm x 25 mm x 5 mm. by using injection molding techniques. Acrylic resins are immersed in water for 24 hours, 48 hours and 12 days. Changes in dimensions are measured using a caliper with an accuracy of 0.01 mm. Statistical analysis was performed using the normality test, homogeneity test, and ANOVA test. Results: this study found that there was no change in dimensions of acrylic resin with water-immersed injection molding techniques 24 hours, 48 hours and 12 days. Conclusion: That immersion of acrylic resin in water at 24 hours, 48 hours, and 12 days with injection molding techniques did not affect changes in dimensions.

scholarly journals The effect of submersion denture base acrylic resin in a betel leaf ekstract solution against growth candida albicans

2017 ◽  
Vol 2 (3) ◽  
pp. 183
Author(s):  
Ardiansyah S. Pawinru ◽  
Andi Izham
Keyword(s):  
Candida Albicans ◽  
Oral Cavity ◽  
Leaf Extract ◽  
Longitudinal Design ◽  
Base Material ◽  
Acrylic Resin ◽  
Denture Base ◽  
Denture Stomatitis ◽  
Betel Leaf ◽  
Experimental Laboratory

Objective: Microorganisms are often found in the oral cavity is candida albicans approximately 40 % in the oral cavity. Candida albicans can penetrate the acrylic resin that can infect the soft tissue and is the cause of denture stomatitis therefore the disinfection pf denture base is an important factor that must be done. The purpose of the research is to determine how the effect of submersion denture base acrylic resin in a betel leaf exstract solution against growth candida albicans.Material and Methods: This research is an experimental laboratory with a longitudinal design (follow-up) study. The Sampling method used is Total Sampling. This study used a sample of 12 pieces of denture base material acrylic resin to be suspended candida albicans fungus for 1x24 hours at 37oC.Results: The number of candida albicans colonies n denture base acrylic resin which soaked betel leaf extract solution that the dilution 10-1with consentration 2.5% total colony count is 2 and the results 2.0 x 101 CFU/ml , on a control solution that the dilution 10-2 total colony 355 and the result 3.55x104 CFU/ml , that the dilution  10-3 total colony 62 and the result 6.2x104 CFU/ml.Conclusion: Betel leaf extract (piper linn) can inhibit the growth of candida albicans on denture base of acrylic resin, betel leaf extract (piper linn) 5% is a minimal anti-fungal power that can be used as a disinfectant solution in acrylic resin denture.

scholarly journals Pengaruh minuman teh pada pemakai basis gigi tiruan nilon termoplastik terhadap penyerapan air dan stabilitas warnaThe effect of tea on the thermoplastic nylon denture base wearers on water absorption and colour stability

2020 ◽  
Vol 32 (1) ◽  
pp. 66
Author(s):  
Siti Wahyuni ◽  
Chairunnisa Ricca
Keyword(s):  
Water Absorption ◽  
Base Material ◽  
Acrylic Resin ◽  
Polyamide 6 ◽  
T Test ◽  
Laboratory Research ◽  
Colour Stability ◽  
Denture Base ◽  
Group A ◽  
Group B

Pendahuluan: Nilon termoplastik merupakan basis gigi tiruan yang banyak diminati oleh para dokter gigi karena memiliki beberapa keuntungan dibandingkan bahan basis gigi tiruan resin akrilik. Diantara jenis nilon termoplastik yang sering dijadikan basis gigi tiruan adalah poliamida 6 dan poliamida mikrokristalin. Poliamida Mikrokristalin merupakan poliamida generasi baru yang dibuat untuk menanggulangi kelemahan pada poliamida sebelumnya. Tujuan penelitian ini adalah menganalisis pengaruh minuman teh pada pengguna gigi tiruan nilon termoplastik terhadap penyerapan air dan stabilitas warna. Metode: Jenis penelitian ini adalah experimental laboratoris. Jumlah sampel terdiri dari 40 dengan  ukuran diameter 15 mm ± 1 mm dan ketebalan 0.5 mm ± 0,1 mm (ISO 4049) dan terbagi menjadi 4 kelompok (kelompok A poliamida 6 dan kelompok B poliamida mikrokristalin untuk penyerapan air serta kelompok C poliamida 6 dan kelompok D poliamida mikrokristalin untuk uji stabilitas warna). Semua sampel direndam dalam larutan teh selama 7 hari. Data dianalisis dengan uji T Independen. Gambaran mikroskopis sampel diuji dengan SEM Hasil: Berdasarkan uji T Independen hasil menunjukkan perbedaan yang signifikan diantara kelompok A dan B, C dan D.  Uji T independen menunjukkan perbedaan yang signifikan diantara kelompok A dan B, C dan D (p=0,0001, p<0,05) Simpulan: Terdapat pengaruh minuman teh pada pengguna gigi tiruan nilon termoplastik. Poliamida Mikrokristalin memiliki penyerapan air yang lebih sedikit dan stabilitas warna yang lebih baik dibandingkan Poliamida 6.Kata kunci: Nilon termoplastik, poliamida 6, poliamida mikrokristalin, penyerapan air, stabilitas warna, SEM. ABSTRACTIntroduction: Thermoplastic nylon is a denture base mostly demanded by dentists due to its several advantages over acrylic resin denture base material. Among the types of thermoplastic nylon that are often used as denture bases are polyamide 6 and microcrystalline polyamide. Microcrystalline polyamide is the new generation of polyamides created to overcome the weaknesses of previous polyamides. The purpose of this study was to analyse the effect of tea on thermoplastic nylon denture wearers on water absorption and colour stability. Methods: This research was experimental laboratory research on 40 samples with a diameter of 15 mm ± 1 mm, and a thickness of 0.5 mm ± 0.1 mm (ISO 4049), divided into four groups (Group A was the polyamide 6; Group B was the microcrystalline polyamide on the water absorption; Group C was polyamide 6; and Group D was microcrystalline polyamide on the colour stability). All samples were immersed in the tea solutions for 7 days. Data were analysed with independent t-test. The microscopic structure was analysed using the scanning electron microscope (SEM). Results: The results showed significant differences between group A, B, C, and D. The independent t-test also showed significant differences between group A, B, C, and D (p = 0.000; p < 0.05). Conclusion: There is an effect of tea on the thermoplastic nylon denture wearers. Microcrystalline polyamides have less water absorption and better colour stability than Polyamide 6.Keywords:  Polyamide 6, thermoplastic nylon, microcrystalline polyamide, water absorption, colour stability, SEM.

Thermal Properties of Acrylic Resin Denture Base Material Containing Silver Nanoparticle Synthesized from Aqueous Extract of Boesenbergia rotunda

2018 ◽  
Vol 777 ◽  
pp. 173-177
Author(s):  
Panjaporn Wongwitthayakool ◽  
Matsayapan Pudla
Keyword(s):  
Thermal Stability ◽  
Glass Transition ◽  
Thermal Properties ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Base Material ◽  
Acrylic Resin ◽  
Denture Base ◽  
Acrylic Resins ◽  
Thermal Stability Of

Silver nanoparticles (AgNPs) were synthesized by bioreduction method using aqueous extracts of Boesenbergia rotunda as reducing and stabilizing agents. Ultraviolet-Visible (UV-Vis) spectrophotometer was utilized to monitor the qualitative formation of AgNPs. The UV-Vis spectrum showed that the spherical AgNPs with diameter of 20-40 nm were formed. The antifugal activity of synthesized AgNPs was investigated using Candida albicans, which was found that the synthesized AgNPs could be used as effective growth inhibitors. The influence of the incorporation of prepared AgNPs on thermal properties of the acrylic denture base material was investigated. Glass transition temperature of filled acrylic resins was studied using the dynamic mechanical analyzer (DMA). The temperature sweeps were performed with tension mode. Thermogravimetry analysis (TGA) was used to examine effect of AgNP concentration and thermocycling (1250, 2500, 5000, and 10000 cycles) on thermal stability of AgNP filled acrylic resin denture base materials. Glass transition temperature (Tg) of the acrylic resins slightly increase with increasing AgNP contents. TGA results indicated that AgNP retarded thermal degradation of acrylic resin denture material, and thermocycling did not affect thermal stability of AgNP filled acrylic resin denture material.

PENGARUH MINUMAN TEH HITAM TERHADAP KEKUATAN TRANSVERSAL RESIN AKRILIK POLIMERISASI PANAS

2015 ◽  
Vol 3 (2) ◽  
pp. 68-73
Author(s):  
Riezka Hanafiah Putri ◽  
Zulkarnain Agus ◽  
Eni Rahmi
Keyword(s):  
Immersion Time ◽  
Testing Machine ◽  
Base Material ◽  
Acrylic Resin ◽  
Black Tea ◽  
Bending Test ◽  
Control Group ◽  
Denture Base ◽  
Transverse Strength ◽  
Acrylic Resins

Heat-polymerized  acrylic  resins  is  the  most  used  denture  base  material  in  prosthodontics.  One  of  mechanical properties of acrylic resins is transverse strength. It represents the masticatory pressure that is applied to denture base. Black tea is the second largest consumed beverage in the world. The aim of this study was to investigate the effect of black tea beverage on transverse strength of heat-polymerized acrylic resins. A total of 24 heat-polymerized acrylic resin plates (65×10×2,5 mm) were immersed in black tea beverage for 1, 4, and 20 days as treatment group and in aquadest for 1, 4, and 20 days as control group. The transverse strength of  acrylic samples were measured by three–point bending test by universal testing machine. Data were statistically analyzed using Independent t test. The transverse strength values of acrylic resin immersed in black tea beverage had no significant differences to the transverse strength values of acrylic resin immersed in aquadest with similar immersion time (p>0,05). There was no effect of black tea beverage on transverse strength of heat-polymerized acrylic resins. Immersion time decrease the transverse strength of heat-polymerized acrylic resins due to water sorption. Keywords: Heat-polymerized acrylic resins, black tea, transverse strength

scholarly journals Effect of finishing and polishing methods on surface roughness of autopolymerized acrylic resins

2017 ◽  
Vol 65 (4) ◽  
pp. 303-307
Author(s):  
Gabriel Lúcio Calazans DUARTE ◽  
Angélica Kercya Pereira de MENDONÇA ◽  
Ana Roberta Assunção de FREITAS ◽  
Antônio Ricardo Calazans DUARTE ◽  
Julita de Campos Pipolo HOLANDA
Keyword(s):  
Surface Roughness ◽  
Acrylic Resin ◽  
T Test ◽  
Test Results ◽  
Acrylic Resins ◽  
Significant Difference ◽  
Student’S T ◽  
Student’S T Test

ABSTRACT Objective : To evaluate the surface roughness of two makes of autopolymerized acrylic resin (Classic Dencor® and Duralay®) with two different methods of finishing and polishing (conventional and using the Dhpro® finishing & polishing kit). Methods : A total of 20 specimens (10 of each make) was obtained using Zetalabor®--Zhermak condensation silicone molds. After polymerization, 20 blocks of resin were divided in two and subjected to two types of finishing and polishing, one at each end. The types of finishing and polishing were as follows: conventional (lathe) and using the Dhpro® finishing & polishing kit. Once finished and polished, the specimens were subjected to surface roughness testing using a roughness meter and were analyzed via the Student’s t-test. Results : There is a statistically significant difference between the forms of polishing, unrelated to the brand of acrylic resin. Conventional polishing achieved a level of 0.12 µm for both resins and the DhPro® polishing presented roughness a little above 0.2 µm. Conclusion : Conventional polishing is superior to the DhPro® kit, as it achieves lower levels of roughness. There is no significant difference between the acrylic resins in terms of surface roughness after the finishing and polishing processes.

The effects of silane-SiO2 nanocomposite films on Candida albicans adhesion and the surface and physical properties of acrylic resin denture base material

2014 ◽  
Vol 112 (6) ◽  
pp. 1530-1538 ◽  
Author(s):  
Sirasa Yodmongkol ◽  
Rojcharin Chantarachindawong ◽  
Sroisiri Thaweboon ◽  
Boonyanit Thaweboon ◽  
Taweechai Amornsakchai ◽  
...  
Keyword(s):  
Candida Albicans ◽  
Physical Properties ◽  
Base Material ◽  
Acrylic Resin ◽  
Nanocomposite Films ◽  
Denture Base

scholarly journals Changes in Surface Roughness of Acrylic Resin Heat Cured after Immersed in Yogurt

2018 ◽  
Vol 1 (1) ◽  
pp. 171-175
Author(s):  
Kholidina Imanda Harahap ◽  
Lasminda Syafiar ◽  
Sintiya Karolina Tarigan
Keyword(s):  
Surface Roughness ◽  
Exposure Time ◽  
Immersion Time ◽  
Base Material ◽  
Acrylic Resin ◽  
T Test ◽  
Denture Base ◽  
Acidic Solutions ◽  
Before And After ◽  
Digestive Health

To mantain digestive health, people usually consume yogurt that has acidity 4-5. Acidic solutions can cause the surface roughness of acrylic resin heat cured is used as denture base material. Denture with rough surfaces facilitate the attachment of plaque and bacteria that can degrade the cleanliness and health of the patient. The purpose of this study was to analyze the surface roughness of acrylic resin heat cured after being immersed in yogurt with different immersion time. Thirty acrylic resin heat cured specimens (12 mm in length, 12 mm in wide and 2 mm height) were prepared and divided into three experimental groups (n=10): I ( specimens immersed in yogurt for 60 minutes), II (specimens immersed in yogurt for 120 minutes) and III (specimens immersed in yogurt for 180 minutes). Surface roughness before and after immersion was measured using Profilometer. Data will be analyzed using T test (p<0,05). After immersion, the specimens showed significantly different on surface roughness (p=0,04). Among the experimental groups, immersion for 180 minutes showed the highest surface roughness value than 60 and 120 minutes. It can be concluded that yogurt can make surface roughness of acrylic resin heat cured. Increasing surface roughness depends on exposure time of yogurt on acrylic resin heat cured. To mantain a digestive health, people usually consume yogurt that has acidity of 4-5. Acidic solutions can cause the surface roughness of heat cured acrylic resin which is used as denture base material. Denture with rough surfaces facilitates the presence of plaque and bacteria that can degrade the cleanliness and health of the patient. The objective of this study was to analyze the surface roughness of heat cured acrylic resin after immersed in yogurt with different immersion time. Thirty heat cured acrylic resin specimens (12 mm in length, 12 mm in wide and 2 mm in height) were prepared and divided into three experimental groups (n=10): I ( specimens were immersed in yogurt for 60 minutes), II (specimens were immersed in yogurt for 120 minutes) and III (specimens were immersed in yogurt for 180 minutes). Surface roughness before and after immersion was measured using Profilometer. Data were analyzed using T test (p<0,05). After immersion, the specimens showed significantly different on surface roughness (p=0,04). Among the experimental groups, immersion for 180 minutes showed the highest surface roughness value than 60 and 120 minutes. It could be concluded that yogurt could make surface roughness of heat cured acrylic resin . Increasing surface roughness depended on exposure time of yogurt on heat cured acrylic resin.

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