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.

scholarly journals SURFACE ROUGHNESS IMPROVEMENT OF POLYAMIDE RESIN DENTURE AFTER SOAKING IN 50% CINNAMON (Cinnamon burmanii) SOLUTION

2021 ◽  
Vol 1 (Volume 1 No 2) ◽  
pp. 165-174
Author(s):  
Rheni Safira Isnaeni ◽  
Zwista Yulia Dewi ◽  
Muhammad Hamzah Rahmatullah
Keyword(s):  
Surface Roughness ◽  
Base Material ◽  
T Test ◽  
Control Group ◽  
Denture Base ◽  
Cinnamon Extract ◽  
Extract Solution ◽  
Significant Difference ◽  
Before And After ◽  
Antibacterial And Antifungal

Polyamide resin is widely used in dentistry as a denture base material. Cinnamon burmanii has been proven to have antibacterial and antifungal substances. Therefore, it is the potential to be used as a nature denture cleanser. This study aimed to examine the effect of soaking 50% cinnamon extract solution on the surface roughness of polyamide resin. This study used 16 polyamide resin samples soaked in 50% cinnamon extract solution and 16 samples soaked in distilled water as the control group. It examined the surface roughness before and after immersion for four days and seven days. Data were analyzed using paired T-test and independent T-test. The results showed a significant difference in the surface roughness of polyamide resin before and after immersion in cinnamon solution for four days and seven days. The surface roughness change is due to the polyphenol's reaction on the polyamide resin surface, which has destroyed the polymer chain of polyamide resin.

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.

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 The Effect of Alcoholic Beverages on Surface Roughness of Acrylic Denture Base Material

2020 ◽  
Vol 5 (1) ◽  
pp. 36-43
Author(s):  
Gladis Aprilla Rizki ◽  
Sri Wahyuningsih Rais ◽  
Martha Mozartha
Keyword(s):  
Surface Roughness ◽  
Artificial Saliva ◽  
Alcoholic Beverage ◽  
Base Material ◽  
Acrylic Resin ◽  
Alcoholic Beverages ◽  
Control Group ◽  
Test Surface ◽  
Denture Base ◽  
Significant Difference

Alcoholic beverages can be consumed in any group age, and it may be consumed by an individual using denture. Fluid absorption by heat-cured acrylic resin as a material of a denture base was able to cause an increase in its surface roughness. Absorption of an organic solvent such as the ethanol in an alcoholic beverage(s) could even increase the effect. This study aimed to evaluate the effect of alcohol beverages on surface roughness of heat-cured acrylic resin denture base. Samples (n=24) were prepared from heat-cured acrylic resin (25x25x5 mm). They were divided into 4 groups and the pre-test surface roughness was measured. Samples of each group were immersed for 10 minutes into the solution (distilled water as the control group, beer, wine, and whiskey as the test groups). After stored in artificial saliva for 23 hours, the samples were immersed into the solution, completing a period of 24 hours. This procedure was performed for 7 consecutive days and the post-test surface roughness was measured. Data were statistically analyzed using the Kruskal-Walis test. There was a significant difference in surface roughness measurement before and after the immersion (p<0.05). Whiskey was most affecting the surface roughness of heat-cured acrylic resin denture base. Alcoholic beverages could increase the surface roughness of heat cure acrylic resin denture base. Keywords: Alcoholic beverages; Heat-cured acrylic denture base; Surface roughness

scholarly journals Evaluating Polishability of Zirconia Impregnated PMMA Nanocomposite for Denture Base Application

Symmetry ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 976
Author(s):  
Saleh Zidan ◽  
Nikolaos Silikas ◽  
Julfikar Haider ◽  
Javad Jahantigh ◽  
Ahmed Alhareb ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Surface Finish ◽  
Acrylic Resin ◽  
Control Group ◽  
Median Surface ◽  
Denture Base ◽  
Low Concentrations ◽  
Before And After ◽  
Base Resin ◽  
Zirconia Nanoparticles

Artificial biomaterials are being developed for use in denture base with symmetrical properties to restore the aesthetics and functionalities. The rough surface of denture base resin promotes the adhesion of microorganisms and plaque accumulation. This study aimed to explore the consequences of polishing times on the surface roughness of high-impact (HI) heat-polymerized PMMA denture base acrylic resin reinforced with zirconia nanoparticles (nanocomposite). Thirty specimens (25 ± 0.50 mm in diameter and 2 ± 0.10 mm thickness) were fabricated from HI PMMA by adding zirconia nanoparticles at different concentrations of (0 wt.%, 1.5 wt.%, 3 wt.%, 5 wt.%, 7 wt.%, and 10 wt.%). Specimens were divided into six groups (n = 5) and surface roughness (Ra) was measured before and after polishing with a standard protocol for one and two minutes. The addition of zirconia in PMMA at low concentrations (1.5 wt.%, 3 wt.%, and 5 wt.%) did not negatively affect the surface finish of the denture base composites following conventional polishing and remained below the clinically acceptable limit (0.2 µm). After one minute of polishing, only the 10 wt.% zirconia (0.17 ± 0.03 µm) demonstrated a substantial rise in median surface roughness, in comparison with the control group (0.11 ± 0.01 µm). It is concluded that the group containing 3 wt.% (0.10 ± 0.01 µm) of zirconia is the optimum concentration to obtain the best symmetrical surface finish after two minutes of polishing.

scholarly journals Effect of Henna Addition on the Surface Roughness and Hardness of Polymethylmethacrylate Denture Base Material: An In-vitro Study

2017 ◽  
Author(s):  
Amal Nawasrah ◽  
Mohammed Gad ◽  
Mai El Zayat
Keyword(s):  
Surface Roughness ◽  
Base Material ◽  
In Vitro Study ◽  
Acrylic Resin ◽  
Control Group ◽  
Denture Base ◽  
Hardness Tester ◽  
Measure Surface Roughness ◽  
New Type

Statement of problem: Henna has been added to polymethylmethacrylate (PMMA) as a new type of antifungal agent; however, its effect on the latter&rsquo;s physical properties has not been investigated. Purpose: This study aimed to evaluate the effect of the addition of various henna concentrations on the surface roughness and hardness of PMMA denture base material. Materials and Methods: A total of 99 specimens of rectangular-shaped (10&times;20&times;3 mm3) acrylic specimens were prepared from heat-cured acrylic resin. Specimens were divided into one control group without the addition of henna and five test groups, which were prepared by adding Yamani henna powder to acrylic powder at concentrations of 1wt%, 2.5wt%, 5wt%, 7.5wt%, and 10wt%. The polymer was added to the monomer before being mixed, packed, and processed using the conventional water bath method. After processing, specimens were finished and polished, then kept in distilled water for 48+2 h. A profilometer and Vickers hardness tester were used to measure surface roughness and hardness respectively. Statistical data analysis was conducted via SPSS version 20.0 (IBM, USA). Results: The addition of henna at varying concentrations significantly increased surface roughness values (P &le; 0.01) while decreasing hardness (P &le; 0.0001). The most favorable addition value was 1% henna between all henna groups. Conclusion: The addition of henna to the acrylic resin may negatively affect the surface properties of PMMA acrylic denture base.

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.

Comparative study of some properties of flexible and conventional heat cured acrylic resin denture base material

2018 ◽  
Vol 21 (1) ◽  
pp. 87-91
Author(s):  
Wesam E Badr ◽  
Hassan M Sakr ◽  
Muhammad A Masoud ◽  
Mohamed A Quassem
Keyword(s):  
Comparative Study ◽  
Base Material ◽  
Acrylic Resin ◽  
Denture Base
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