scholarly journals Bond Strength of Reline Resins to Aged-simulated Denture Base Acrylic Resin

2016 ◽  
Vol 7 (1) ◽  
pp. 1-5
Author(s):  
Alessandra Buhler Borges ◽  
Carlos Rocha Gomes Torres ◽  
Graziela Ribeiro Batista ◽  
Eduardo Bresciani ◽  
Erica Crastechini ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Bond Strength ◽  
Tensile Test ◽  
Surface Treatment ◽  
Thermal Aging ◽  
Base Material ◽  
Acrylic Resin ◽  
Denture Base ◽  
Single Cone ◽  
One Way Anova

ABSTRACT Objectives The aim of this study was to evaluate the bond strength of different direct reliners to acrylic resin for denture base. Materials and methods Double-cone specimens were made: HA-heat-cured acrylic resin-(n = 20); U-Ufi Gel Hard C-(n = 10); K: Kooliner-(n = 10); R-Rebase II Fast-(n = 10) and RH-Rebase II Fast + Resin Hardener-(n = 10). Ten HA samples were immediately submitted to cohesive test. The remaining HA samples and others were submitted to thermal aging (HAaged, 1000 cycles, 5.55oC), followed by tensile test. For tensile strength, 50 single cone-shaped samples were made of heat-cured acrylic resin and aged (HAaged, 1000 cycles, 5.55oC). After surface treatment, relining resin cones were build up using silicon molds, and stressed to failure. Values of cohesive and tensile strength were submitted to one-way ANOVA and Tukey's test (α = 5%). Results Bond strength were: HA/HAaged: 21.17 (±4.89)a, U/HAaged: 11.56 (±1.98)b, R/HAaged: 9.69 (±2.37)b, RH/ HAaged: 9.38 (±1.78)bc and K/HAaged: 5.98 (±1.90)c. The cohesive strength were: KCoe: 22.29(±4.06)a; RCoe: 23.99 (±3.29)a; RHCoe: 24.84 (±3.88)a; UCoe: 25.62 (±3.03)a; HAaged: 36.06 (±8.65)b and HA:42.29 (±7.68)b. Groups followed by the same letters do not show differences. Conclusion Bond strength of acrylic resin to acrylic denture base material is higher than the reliners and Ufi Gel Hard C showed the higher bond strength. How to cite this article Zanatta RF, Batista GR, Crastechini É, Bresciani E, Borges AB, Torres CRG. Bond Strength of Reline Resins to Aged-simulated Denture Base Acrylic Resin. World J Dent 2016;7(1):1-5.

scholarly journals The effect of polyamide microparticles addition on some mechanical prop-erties of light-cured acrylic resin

2019 ◽  
Vol 10 (2) ◽  
pp. 1464-1469
Author(s):  
Adnan R. Al Assal ◽  
Abdalbaset A Fatalla ◽  
Mohammed Moudhaffar ◽  
Ghasak H Jani
Keyword(s):  
Tensile Strength ◽  
Impact Strength ◽  
Base Material ◽  
Acrylic Resin ◽  
Strength Test ◽  
Control Group ◽  
Denture Base ◽  
Mean Values ◽  
Transverse Strength ◽  
Transverse Tensile

The general upgrading of polymer denture base material and research continuously looking for ideal restorative dental material with better properties, adequate esthetic properties, less expensive and easier to handle material to develop photo polymerization dental materials. This study was conducted to evaluate the effect of addition polyamide on mechanical microparticle properties light cure denture base material. One hindered sixty specimens from light-cured acrylic resin (Aurora). The divided mainly into four groups according to test used (Transverse strength test, impact strength test, hardness test and tensile strength test) with 40 specimens for each group. The results show an increase in Transverse strength, impact strength, hardness and tensile strength in all experimental group when compared to control group the highest mean values for all tests included in the study appeared in group B 1% polyamide. The addition of polyamide microparticle improves transverse, tensile, impact strength and hardness properties of denture base material.

The bond strength of a visible light-cured reline resin to acrylic resin denture base material

1990 ◽  
Vol 63 (4) ◽  
pp. 485-487 ◽  
Author(s):  
Ramin Razavi ◽  
Zafrulla Khan ◽  
J.A. von Fraunhofer
Keyword(s):  
Bond Strength ◽  
Visible Light ◽  
Base Material ◽  
Acrylic Resin ◽  
Denture Base

scholarly journals Evaluation of Bond Strength and Dimensional Accuracy of Soft Liner to Microwave Cured Denture Base Material

2020 ◽  
Vol 10 (2) ◽  
pp. 32-37
Author(s):  
Shilan H. Fatah ◽  
Radhwan H. Hasan
Keyword(s):  
Bond Strength ◽  
Surface Treatment ◽  
Base Material ◽  
Mean Value ◽  
Water Bath ◽  
Denture Base ◽  
Liner Material ◽  
Significant Difference ◽  
Soft Liner ◽  
Pmma Surface

Today, soft liners are being widely used in dental practices by their application to the inner surfaces of the denture with hopes to evenly distribute any potential uneven forces, and to provide a cushion effect to the oral mucosa of the patient mouth. The aim of this study is to investigate the influence of (a) polymethylmethacrylate (PMMA) denture base material curing technique, (b) Molloplast B soft liner curing technique, and (c) PMMA surface treatment, on the “shear bond strength” (SBS) between the Molloplast B liner and PMMA. A total of 80 samples were used in this study to evaluate the SBS performance of microwave (Nature-Cryl, Acron Gc, Japan) and conventional water bath (Ivoclar triplex, Liechtenstein) curing techniques of PMMA, and to evaluate the curing technique of soft liner material Molloplast B (DETAX,GERMANY). Surface treatment of PMMA was performed for half of the samples using neodymium:yttrium aluminum-garnet Nd:YAG laser, and the other half of the samples were surface-treated using AL2O3 sandblasting method. The results showed that the highest mean value in conventional water bath-cured soft liner was 26.69 MPa, whereas the lowest mean value for microwave-cured soft liner was 15.22 MPa. No significant difference was observed between the SBS performance regarding the PMMA surface treatment and curing techniques. Conventional water bath curing technique for soft liner treatment improved the SBS performance. Regarding the PMMA curing technique, the conventional water bath achieved higher SBS, yet the difference was not statistically significant. Finally, surface treatment using laser improved the SBS compared to sandblasted method, but the improvement here was also statistically insignificant.

Comparative Evaluation of Shear Compressive Bond Strength between Cross-linked Acrylic Resin Denture Base and Cross-linked Acrylic Resin Teeth with Different Modifications of Their Ridge Lap Surfaces

2013 ◽  
Vol 14 (5) ◽  
pp. 898-903
Author(s):  
Prasad Rane ◽  
Leena Sadar ◽  
Swaroop Dhume ◽  
Neena Maniar ◽  
Jeevan Prakash Patil ◽  
...  
Keyword(s):  
Bond Strength ◽  
Comparative Evaluation ◽  
Testing Machine ◽  
Base Material ◽  
Slight Modification ◽  
Acrylic Resin ◽  
Denture Base ◽  
Anterior Teeth ◽  
The One ◽  
Artificial Teeth

ABSTRACT A major problem commonly observed in denture wearer is the detachment of artificial tooth/teeth from acrylic denture base. The problem was grave when porcelain teeth used along with the then available denture base materials. The bond formed was purely mechanical and hence debonding of teeth from denture base was a frequent occurrence. Inspite of chemical union between acrylic resin teeth and acrylic denture base material, detachment of teeth particularly anterior teeth is a frequent observation. The objective of the study is to study the effect of change in the surface treatment and surface configuration of ridge lap surface of the teeth on retention of cross-linked acrylic teeth on crosslinked acrylic resin denture base. Sixty specimens were tested for the shear compressive bond strength using instron universal testing machine in KN. Statistical analysis is used. The findings were analyzed using one-way analysis of variance (ANOVA) and ‘t’ test. Slight modification in the ridge lap surface of artificial teeth alters the strength of the shear compressive bond. Sand papering of ridge lap surfaces improves the shear compressive bond then the one without any modification. Maximum shear compressive bond strength can be increased by application of monomer How to cite this article Sadar L, Dhume S, Maniar N, Patil JP, Rane P, Gandhewar M. Comparative Evaluation of Shear Compressive Bond Strength between Cross-linked Acrylic Resin Denture Base and Cross-linked Acrylic Resin Teeth with Different Modifications of Their Ridge Lap Surfaces. J Contemp Dent Pract 2013;14(5):898-903.

scholarly journals Efektivitas Perasan Daun Kemangi (Ocimum basilicum) dibanding Larutan Pembersih Gigi Tiruan Effervescent sebagai Pembersih Gigi Tiruan Resin Akrilik terhadap Pertumbuhan Candida albicans

2019 ◽  
Vol 7 (2) ◽  
pp. 135
Author(s):  
Sherlika Puspita Sari ◽  
Achmad Gunadi ◽  
Dewi Kristiana
Keyword(s):  
Candida Albicans ◽  
Base Material ◽  
Acrylic Resin ◽  
Chemical Cleaning ◽  
Denture Base ◽  
Denture Stomatitis ◽  
Treatment Groups ◽  
Cleaning Agents ◽  
The One ◽  
One Way Anova

The heat cured acrylic resin is common used as denture base material, but its microporosity can affect the cleanliness of the denture base lead to accumulation of plaque and food waste, and further increase the number of Candida albicans and cause denture stomatitis. There are 2 type of cleaning agents; natural cleaning agents, such as basil and chemical cleaning agents, for example effervescent artificial cleaning tablets. This study compared the effectiveness of basil leaves squeeze and effervescent denture cleaning solutions in soaking heat cured acrylic resin plates on the growth of C. albicans. There were 24 of 10x10x1 mm acrylic resin plates divided into 6 treatment groups. The acrylic resin plate was soaked in the basil leaves squeeze and effervescent denture cleaning solutions. Measurement of C. albicans absorbance used a spectrophotometer, then calculated the total of C. albicans using the formula. Data was analyzed using the One Way ANOVA test. The analysis showed that there are significant differences on the growth inhibition of C. albicans between treatment groups (p <0.005). The effervescent denture cleansing solution has a better antifungal effectiveness than the basil leaves

scholarly journals Pengaruh perendaman plat resin akrilik dalam larutan kopi dengan berbagai kekentalan terhadap perubahan volume larutan kopi

e-GIGI ◽  
2017 ◽  
Vol 5 (1) ◽  
Author(s):  
Rachel S. Togatorop ◽  
Jimmy F. Rumampuk ◽  
Vonny N.S. Wowor
Keyword(s):  
Base Material ◽  
Acrylic Resin ◽  
Control Group ◽  
P Value ◽  
Control Group Design ◽  
Denture Base ◽  
Group Design ◽  
Post Test ◽  
The One ◽  
One Way Anova

Abstract: Acrylic resin is a denture base material that is still used in the field of dentistry. Porosity, one of the properties of a denture base material, can lead to absorption of fluid in the mouth, one of them is coffee. Porosity that occurs in a denture base material can cause discoloration. Coffee is favored by most people. Coffee contains tannins, a polyphenol compound, that can be absorbed through the porous of the denture base which can cause discoloration of the denture base. This study was aimed to determine the effect of acrylic resin plate immersed in coffee solution with various viscosity to the changes in volume of coffee solution. This was a pre laboratory experimental study with a pre and post test only control group design. Samples were 18 acrylic resin plates with a size of 65 x 10 x 2.5 mm. Each treatment group consisted of 6 samples. The samples were divided into 3 treatment groups that were soaked in coffee 2 g, 4 g, and 6 g for 7 days. The results showed that after 7 days of immersing resin acrylic plates in coffee solution with various viscosity, the changes of the volumes of coffee solution had a mean of 0.064 for 2 g; 0.147 for 4 g; and 0.244 for 6 g. The one-way ANOVA test resulted in a p value of 0.00. Conclusion: There was a significant effect of resin acrylic immersed in a coffee solution with various viscosity to the changes in the volume of coffee solution.Keywords: acrylic resin, changes in volume of the solution of coffee, coffee Abstrak: Resin akrilik merupakan bahan basis gigi tiruan yang sampai saat ini masih digunakan dalam bidang Kedokteran Gigi. Porositas merupakan salah satu sifat basis gigi tiruan. Adanya porositas pada basis gigi tiruan dapat mengakibatkan terserapnya cairan yang masuk dalam mulut salah satunya yaitu kopi. Porositas yang terjadi pada basis gigi tiruan dapat menyebabkan perubahan warna pada basis gigi tiruan. Kopi merupakan salah satu minuman yang banyak digemari masyarakat. Kopi mengandung tanin suatu senyawa polifenol yang dapat terserap masuk melalui porus pada basis gigi tiruan dan menyebabkan perubahan warna pada basis gigi tiruan. Penelitian ini bertujuan untuk mengetahui pengaruh perendaman plat resin akrilik dalam larutan kopi dengan berbagai kekentalan terhadap perubahan volume larutan kopi. Jenis penelitian ialah pra eksperimental laboratorium dengan pre and post test only control group design. Sampel terdiri dari 18 plat resin akrilik dengan ukuran 65 x 10 x 2,5 mm. Sampel dibagi menjadi 3 kelompok perlakuan yang di rendam dalam kopi 2gr, 4gr, dan 6gr selama 7 hari. Masing-masing kelompok perlakuan terdiri dari 6 sampel. Hasil penelitian mendapatkan setelah 7 hari perendaman plat akrilik dalam larutan kopi dengan berbagai kekentalan terhadap perubahan volume larutan kopi memiliki rerata kopi 2 gr sebesar 0,064, kopi 4 gr sebesar 0,147. dan kopi 6 gr sebesar 0,244. Uji One-way Anova menunjukkan adanya pengaruh perendaman resin akrilik dalam larutan kopi dengan berbagai kekentalan terhadap perubahan volume larutan kopi dengan p=0,00. Simpulan: Terdapat pengaruh bermakna dari perendaman resin akrilik dalam larutan kopi dengan berbagai kekentalan terhadap perubahan volume larutan kopiKata kunci: resin akrilik, perubahan volume larutan kopi, kopi

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