These factors increase the surface roughness of the prosthesis and can result in an increase in the sorption and solubility of the prosthesis base material. The results also indicated that the composition of the medium affects the sorption and solubility of Vertex™ Rapid Simplified heat-set acrylic: the.
INTRODUCTION
- Introduction
- Background to study
- Problem statement
- Aim of the study
- Objectives
- Research hypotheses
- Study design and methods
- Study design
- Overview of methods
- Data analysis
- Ethical consideration
- Significance of study
- Arrangement of the dissertation
- Conclusion
A review of the literature also suggests that surface treatments can reduce the sorption and solubility of denture base materials. To determine which surface treatment results in the least sorption and solubility of the material.
LITERATURE REVIEW
- Introduction
- Dental prostheses
- History of the denture base materials
- Heat activated PMMA
- Sorption
- Solubility
- Mixing ratios
- Polymerisation cycle
- Denture base thickness
- Surface treatment of denture base material
- Artificial saliva solution
- Measurement of sorption and solubility for denture base material
- Conclusion
The polymerization of the polymers of the prosthesis base is promoted by an initiator which is part of the chemical composition of the material. One of the factors investigated was the effect of a conventional polishing procedure on the rate of absorption and solubility of a heat-treated denture base polymer.
METHODOLOGY
- Introduction
- Aim of the study
- Objectives of the study
- Research hypothesis
- Hypothesis 1
- Hypothesis 2
- Hypothesis 3
- Hypothesis 4
- Hypothesis 5
- Hypothesis 6
- Hypothesis 7
- Study design
- Study sample
- Description of study sample
- Sample size
- Data collection procedure
- Preparation of specimens
- Surface treatment
- Preparation of artificial saliva
- Sorption and solubility testing
- Inclusion and exclusion criteria
- Inclusion criteria
- Exclusion criteria
- Data analysis
- Data management
- Reliability and validity
- Reliability
- Validity
- Ethical considerations
- Conclusion
Experiments conducted to test sorption and solubility as well as specifications. Excessive heat production can burn the surface of the samples or cause them to deform. The value did not play an active role in determining the sorption and solubility of the samples, but it had to be recorded to calculate the conditional mass of the samples.
Once all the samples reached a conditioned mass, the volume of the conditioned samples was calculated and recorded as V. The mass and volume of the samples were the two variables used to determine the outcome of the study. This variable played no active role in determining the sorption and solubility of the samples, but had to be recorded to calculate the conditioned mass of the sample.
These data were then used to calculate the absorption and solubility of the samples using the formulas provided by the ISO standard E) (see section 3.7.4, above). To ensure the reliability of the study, ISO E) requirements for absorption and solubility testing were strictly followed. This study strictly followed the well-established international standards of ISO E) requirements for calculating the absorption and solubility of denture base materials.
RESULTS
- Introduction
- Sorption and solubility of heat-cured acrylic with no surface treatment soaked
- Objective One: to determine the sorption and solubility of heat-cured
- Objective Two: to determine the sorption and solubility of heat-cured
- Comparison of means for "No Surface Treatment, Soaked in Distilled
- Sorption and solubility of mechanically polished, heat-cured acrylic soaked
- Comparison of means for "Mechanically Polished, Soaked in Distilled
- Sorption and solubility of mechanically polished heat-cured acrylic soaked in
- Comparison of means for "Mechanically Polished, Soaked in Artificial
- Sorption and solubility of heat-cured acrylic treated with a light-cured varnish
- Comparison of means for "Light-Cured Varnish, Soaked in Distilled
- Sorption and solubility of heat-cured acrylic treated with a light-cured varnish
- Comparison of means for "Light-Cured Varnish, Soaked in Artificial
- Surface treatment resulting in the least sorption and solubility of heat-cured
- Medium in which the heat-cured acrylic material is soaked that results in the
- Comparison of means for "Distilled Water" and "Artificial Saliva”
- ANOVA statistical analysis
- Conclusion
Ha: The heat-cured test samples mechanically polished and soaked in distilled water have lower sorption and solubility values than the unsurface-treated samples soaked in distilled water. Ha: The heat-cured test samples mechanically polished and soaked in artificial saliva have lower sorption and solubility values than the unsurface-treated samples soaked in artificial saliva. This sample group consisted of 15 specimens that were mechanically polished and soaked in artificial saliva to obtain their saturated mass.
H0: The heat-cured test samples treated with a light-curing varnish and soaked in distilled water will not have lower sorption and solubility values than the unsurface-treated samples soaked in distilled water. Ha: The heat-cured test samples treated with a light-curing varnish and soaked in distilled water have lower sorption and solubility values than the unsurface-treated samples soaked in distilled water. This sample group consisted of 15 specimens that were treated with a light-curing varnish and soaked in distilled water to obtain their saturated mass.
This sample group consisted of 15 samples that were treated with a light-cured varnish and soaked in artificial saliva to achieve their saturated mass. H0: The heat-cured test samples soaked in distilled water will not have lower sorption and solubility values than those soaked in artificial saliva. Ha: The heat-cured test samples soaked in distilled water will have lower sorption and solubility values than those soaked in artificial saliva.
DISCUSSION
- Introduction
- ISO Sorption and Solubility Testing
- To determine the sorption and solubility of heat-cured acrylic with no surface
- To determine the sorption and solubility of mechanically polished, heat-cured
- To determine the sorption and solubility of heat-cured acrylic treated with a
- To determine which surface treatment results in the least sorption and
- To determine which medium results in the least sorption and solubility of the
- Conclusion
To accept or reject hypothesis one, it was necessary to compare the sorption and solubility results of the uncoated samples soaked in distilled water with those soaked in artificial saliva. To accept or reject hypothesis two, it was necessary to compare the sorption and solubility results of the samples that were mechanically polished and soaked in distilled water with those that did not receive any surface treatment soaked in distilled water. To accept or reject hypothesis three, it was necessary to compare the sorption and solubility results of the samples that were mechanically polished and soaked in artificial saliva with those that did not receive any surface treatment soaked in artificial saliva.
Thus, mechanical polishing had the same positive effect on the solubility of the specimens soaked in artificial saliva as on the specimens soaked in distilled water. In summary, mechanical polishing reduced the solubility of the material in both distilled water and artificial saliva compared to the samples that received no surface treatment. To accept or reject hypothesis five, it was necessary to compare the sorption and solubility results of the samples treated with an Optiglaze™ light-curing varnish soaked in distilled water with those that had not been surface treated soaked in distilled water.
This study showed that the use of Optiglaze™ had the same positive effect on the sorption of the samples soaked in artificial saliva as it had on the samples soaked in distilled water. Objective seven was established to determine which surface treatment results in the least sorption and solubility of the Vertex™ Rapid Simplified denture base material. The Tukey-Kramer Multiple Comparison Test indicated that the lower solubility values recorded by the samples soaked in artificial saliva were statistically significant compared to the values of the samples soaked in distilled water.
CONCLUSION
Introduction
Overview
Conclusions
- Overall Aim
- Objectives
- Overall Conclusions
Objectives 1 and 2 were designed to determine the absorption and solubility of heat treated acrylic without surface treatment soaked in distilled water and artificial saliva. Specimens soaked in artificial saliva recorded lower absorption and solubility values than specimens soaked in distilled water. Objective three was designed to determine the effect of mechanical polishing on the absorption and solubility of heat-dried acrylic soaked in distilled water.
The samples that were mechanically polished and soaked in distilled water recorded lower average sorption and solubility values than the sample group that did not receive any surface treatment soaked in distilled water. Objective four was established to determine the effect of mechanical polishing on the sorption and solubility of heat-set acrylic soaked in artificial saliva. Objective five was set to determine the effect of a light-cured varnish on the sorption and solubility of heat-cured acrylic soaked in distilled water.
Objective six was established to determine the effect of a light-cured varnish on the sorption and solubility of heat-cured acrylic soaked in artificial saliva. Finally, objective eight was established to determine which medium results in the least sorption and solubility of heat-cured acrylic. The samples soaked in artificial saliva recorded lower sorption and solubility values than the samples soaked in distilled water, but only the reduction in solubility was considered statistically significant.
Limitations
Contribution to research
Recommendations
Both surface treatments tested in this study reduced the absorption or solubility of heat-treated acrylic. Further research to determine the effect of these surface treatments on the physical, mechanical, and chemical properties of the prosthesis base material—such as stiffness, flexural strength, dimensional stability, surface roughness, and biocompatibility—will be of considerable value. Studies have shown that light varnishes with different compositions can exhibit different absorption and solubility properties.
Further research to determine the effect that different types of light lacquers may have on the absorption and solubility of denture base materials may indicate which light lacquer products are optimal in terms of reducing the absorption and solubility of heat-cured acrylic. Since mechanical polishing and the application of Optiglaze™ light varnish have been considered viable surface treatment options for heat-curing denture base material, future researchers could investigate the durability of these treatments by evaluating their surface roughness degradation with the passage of time. . ISO recommends that the absorption and solubility of the heat-treated denture base material be calculated after a seven-day immersion period.
Therefore, it is recommended that future research be conducted to determine the long-term effects of surface treatments and medium composition on the absorption and solubility of denture base materials. This study found that the solubility of heat-cured acrylic was significantly lower when soaked in artificial saliva over a seven-day period. Based on the results of this study, Optiglaze™ light-cured lacquer can be recommended as an alternative surface treatment to mechanical glazing or used in conjunction with it since the absorption and solubility levels recorded were within the limits set by ISO.
Concluding Remarks
Effect of mechanical and chemical polishing techniques on surface roughness of heat-cured and visible light-cured acrylic denture base resins. Effect of conventional polishing procedure on water absorption of cold and heat treated acrylic denture base material. The effect of mechanical and chemical polishing techniques on the surface roughness of denture-based acrylic resins.
The effects of crosslinking agents on the water absorption and solubility characteristics of denture base resin. Influence of thickness and processing method on the linear dimensional change and water absorption of denture base resin. Porosity, water absorption and solubility of denture base acrylic resins polymerized conventionally or in microwave.
Effect of chemical and mechanical polishing on water absorption and solubility of denture-based acrylic resins. Diffusion and solubility of commercial poly(methacrylate) denture base material modified with dimethyl itacone and di-n-butyl itacone during water absorption/desorption cycles. Effect of surface treatment of denture acrylic resin on residual monomer content and its release in water.
