Evaluation the Effect of Black Seed Oil and Taramira Oil on the Hardness and Surface Roughness of Heat Cure Acrylic Resin Denture base Material

Adequate retention is a basic requirement for the acceptance of complete denture. The aim of this study was to evaluate the retention quality of fluid denture base materials and compare it with conventional acrylic denture base materials Method: Sixteen edentulous male patients with an age 45-60 years participated in the study. For each patient two denture bases were constructed, one of them made from fluid denture base materials and the other made from hot acrylic denture base materials. A specially designed strain gauge measuring device was used to measure the force required to dislodge the two dentures from basal seats. Six measurements of retention of newly inserted denture base were recorded for each patient (three for maxillary acrylic denture base and three for maxillary fluid denture base). Results: The results of the retention test showed that the fluid denture base materials required more force in order to dislodge denture than the heat cure denture base materials, which means a significant improvement in retention quality obtained by fluid denture base materials. Conclusions: It has appeared that the fluid acrylic denture base materials produce denture base material with excellent retentive efficiency to the underlying tissue when compared to conventional denture base materials.

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Influence of Different Reline Materials and Processing Methods on Flexural Strength of Denture Base Material

Balkan Journal of Dental Medicine ◽

10.2478/bjdm-2021-0017 ◽

2021 ◽

Vol 25 (2) ◽

pp. 108-113

Author(s):

Ozlem Gurbuz Oflezer ◽

Hakan Bahadır ◽

Senem Ünver ◽

Ceyhan Oflezer

Keyword(s):

Flexural Strength ◽

Base Material ◽

Acrylic Resin ◽

Bending Test ◽

Control Group ◽

Processing Methods ◽

Denture Base ◽

Three Point Bending ◽

Heat Cure ◽

And Control

Summary Background/Aim: Relining is defined as the procedure used to resurface the tissue side of a denture with new base material, thus producing an accurate adaptation is provided at the denture foundation area. During mastication, relined dentures have to withstand masticatory forces to prevent fracture. The aim of this study was to evaluate the flexural strength of acrylic resin denture base relined with different methods and materials. Material and Methods: Fourteen experimental groups and one control group were determined to consider different reline materials and processing methods. Acrylic resin specimens were prepared with the dimensions of 65× 10× 1.5 mm and reline materials (1.5 mm thickness) were placed on acrylic resins. Reline material was not used in control group specimens. Flexural strength values of relined and control specimens were measured with three-point bending test at a speed of 5 mm/min. Data were analyzed with using one way Anova and Student t tests. Results: The highest flexural strength values were shown in control group (86.51±1.08 MPa). There were significant differences among relined specimens (p< 0.05). For the relined specimens, the highest flexural strength values were found in the relined specimens with denture base material (77.90±1.93 MPa), and the lowest values were found in relined with autopolymerize acrylic material (59.81±1.50 MPa). Conclusions: Relining of the heat cure denture base material significantly decreases the flexural strength for all processing methods and materials.

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

Talenta Conference Series Tropical Medicine (TM) ◽

10.32734/tm.v1i1.49 ◽

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

SONDE (Sound of Dentistry) ◽

10.28932/sod.v5i1.2328 ◽

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

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Effect of Phosphoric Containing and Varnish-Coated Groups on Candida Albicans Adhesion and Porosity of Heat Cure Acrylic Denture Base Material

Biomedical & Pharmacology Journal ◽

10.13005/bpj/1360 ◽

2018 ◽

Vol 11 (1) ◽

pp. 179-185 ◽

Cited By ~ 1

Author(s):

Zahraa S. Abed Karkosh ◽

Basima M. A. Hussein ◽

Wifaq M. Ali AL-Wattar

Keyword(s):

Candida Albicans ◽

Polymethyl Methacrylate ◽

Base Material ◽

Acrylic Resin ◽

Denture Base ◽

Heat Cure ◽

Varnish Layer ◽

Varnish Coating ◽

Methacrylate Monomer ◽

Experimental Group

The aim of this study was to evaluate the effect of modified heat cured polymethyl methacrylate denture base (PMMA) or varnish coating of the denture base on candida albicans adhesion and porosity. First experimental group was prepared by addition of 15% phosphoric acid 2-hydroxyethyl methacrylate ester with polymethyl methacrylate monomer. While second experimental group prepared by varnish layer coating after material processing, these groups were compared with the control one. Three groups of vertex acrylic resin used as control, mPMMA and varnish coated group (PPH Cerkamed Wojciech Pawlowski, Poland). The inverted light microscope was used to measure the candida albicans adherence after one week and one month of processing. Two-way ANOVA, LSD test, T- test and Dunnett T3 were performed on data. Modified Acrylic resin showed highly significant reduction in candida albicans adhesion and porosity, also for varnish coating group showed highly significant reduction in candida albicans adhesion and porosity test.

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The Effect of Coca Cola Drink on the Impact Strength and Surface Roughness of Acrylic Denture Base

Al-Kitab Journal for Pure Sciences ◽

10.32441/kjps.02.02.p8 ◽

2018 ◽

Vol 2 (2) ◽

pp. 120-131

Author(s):

Fahd Ikram

Keyword(s):

Surface Roughness ◽

Impact Strength ◽

Plastic Material ◽

Base Material ◽

Control Group ◽

Denture Base ◽

Heat Cure ◽

Base Resin ◽

Group A ◽

The Impact

Despite the development of many denture base material like chrome-cobalt, fluid and plastic material but the heat cure polymethylmethacrylate considered as the most widely used denture base material. The aims of this study to evaluate and compare the impact strength and surface roughness of heat cured denture base resin after immersing incoca-cola drink for two and four weeks. Methods: A total number of 40 samples were prepared, 30 samples for impact strength test and 10 samples for surface roughness test. The samples were divided into three group; A (control), B (2 weeks immersed in coca cola drink), and C (4 weeks immersed in coca cola drink). Result: Data analyzed by using SPSS software with ANOVA test indicated a non significant differences between the different tested groups, however the samples that were immersed in coca cola drink for 4 weeks revealed non dramatic increase in surface roughness, while the samples that were immersed for 2 weeks showed a non dramatic decrease in the impact strength. Conclusions: The coca cola drink non significantly caused dropping in the tested properties in comparison to the control group.

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

10.20944/preprints201704.0113.v1 ◽

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’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 (10×20×3 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 ≤ 0.01) while decreasing hardness (P ≤ 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.

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