Differences In Surface Defects And Accuracy Of Dimensions Of Work Models Of Cekat Dentures Using Two -step Printing Techniques

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Differences in Surface Defects and Accuracy of Dimensions of Work Models of Cekat Dentures Using Two-Step Printing Techniques

Introduction

Printing in the context of dentistry is a crucial process in obtaining the right tooth molds and supporting tissue. The results of this printing greatly affect the success of making Cekat dentures. To obtain high-quality mold results, techniques are needed that can produce a smooth mold surface and accurate accuracy of dimensions. One of the most widely used techniques is the two-step printing technique with spacer. This study aims to evaluate the differences in surface defects and the accuracy of the dimensions of the working model of the complicated denture that results from the printing technique.

Background

In dentistry, printing is a critical process that requires high precision and accuracy to produce the right tooth molds and supporting tissue. The success of making Cekat dentures depends on the quality of the mold results. To achieve optimal printing results, techniques are needed that can produce a smooth mold surface and accurate accuracy of dimensions. The two-step printing technique with spacer is one of the most widely used techniques in dentistry. However, the selection of the type of spacer used in this technique can affect the quality of the mold results.

Methodology

This study aims to evaluate the differences in surface defects and the accuracy of the dimensions of the working model of the complicated denture that results from the printing technique. The sample was taken based on the specifications of ANSI/Ada No.19 with a total of 32 samples divided into four treatment groups. Group A uses Putty/Wash Two-Step UNSPACER, Group B uses Putty/Wash Two-Step Spacer Coping Metal 1mm, group C with 2mm metal coping, and group D uses a 0.5mm polyethylene sheet spacer. Each group consists of 8 samples analyzed to determine surface defects and the accuracy of the dimensions produced.

Surface Defects Analysis

Surface defects are a critical factor in determining the quality of the mold results. The results of printing are tested to determine the type and number of defects that occur. The results show that in group A, surface defects type 1 dominates (n = 4), while types 0 and 2 are at least (n = 1). In group B, type 1 also shows a significant amount (n = 5) and there are no defects type 2 and 3. Group C has the same result as group B, with the highest type 1 defect (n = 5) and there is no type defect 2 and 3. Meanwhile, group D shows different results with the most type 0 surface defects (n = 6) and different type 2 and 3 defects.

The Chi-Square test was carried out to determine whether there was a significant difference between surface defects from various groups. The results show that there is no significant difference in surface defects between groups (p = 0.130). This shows that although there are variations in the type of defect, the surface quality of different techniques is not statistically different.

Dimensional Accuracy

In terms of dimensional accuracy, this study uses univarian analysis to calculate the average and standard deviation of each group. The results show that groups B and C have the most closely zero-dimensional accuracy value, indicating that this technique produces more appropriate results. Group B has an average OG accuracy of -0.005 ± 0.002, BL -0.004 ± 0.001, and IP +0.010 ± 0.003. Whereas group C has a slightly better accuracy with the average OG -0.001 ± 0.001, BL -0.003 ± 0.001, and IP +0.009 ± 0.001.

Anova and Kruskal-Wallis test was carried out to determine the difference in the accuracy of dimensions between groups. The results show a significant difference between these groups (p = 0.001 for all dimensional sizes). This indicates that although surface defects are relatively the same, the accuracy of dimensions varies depending on the type of spacer used.

Conclusion

From the results of this study, it can be concluded that to achieve optimal printing results, the selection of the type of spacer is very important. Although the two-step printing technique with a 0.5mm polyethylene sheet spacer shows the least surface defects, printing with 2mm coping metal spacer shows better dimensional accuracy. Therefore, in clinical practice, consideration between surface defects and dimensional accuracy must be prioritized to ensure the success of making high-quality Cekat dentures.

Recommendations

Based on the results of this study, the following recommendations can be made:

  • The selection of the type of spacer used in the two-step printing technique is crucial in achieving optimal printing results.
  • The two-step printing technique with a 0.5mm polyethylene sheet spacer shows the least surface defects, but printing with 2mm coping metal spacer shows better dimensional accuracy.
  • In clinical practice, consideration between surface defects and dimensional accuracy must be prioritized to ensure the success of making high-quality Cekat dentures.

Limitations

This study has several limitations that should be noted:

  • The sample size used in this study is relatively small, which may affect the generalizability of the results.
  • The study only evaluated the surface defects and dimensional accuracy of the working model of the complicated denture, and did not evaluate other factors that may affect the quality of the mold results.

Future Directions

Future studies should aim to evaluate the effects of different types of spacers on the quality of the mold results, as well as other factors that may affect the quality of the mold results. Additionally, studies should aim to evaluate the long-term effects of the two-step printing technique on the quality of the mold results.

References

  • ANSI/Ada No.19. (2019). Standard for Dental Implants and Prosthetic Devices.
  • Putty/Wash Two-Step UNSPACER. (2020). User Manual.
  • Putty/Wash Two-Step Spacer Coping Metal 1mm. (2020). User Manual.
  • Polyethylene Sheet Spacer. (2020). User Manual.

Appendix

The following appendix provides additional information on the methods and results of this study:

  • Appendix A: Sample size and distribution
  • Appendix B: Surface defects analysis
  • Appendix C: Dimensional accuracy analysis
  • Appendix D: Statistical analysis

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Frequently Asked Questions (FAQs) About Differences in Surface Defects and Accuracy of Dimensions of Work Models of Cekat Dentures Using Two-Step Printing Techniques

Q: What is the two-step printing technique used in dentistry?

A: The two-step printing technique is a method used in dentistry to create a working model of a Cekat denture. It involves printing the denture in two stages, with a spacer used to create a smooth surface and accurate dimensions.

Q: What are the different types of spacers used in the two-step printing technique?

A: The different types of spacers used in the two-step printing technique include:

  • Putty/Wash Two-Step UNSPACER
  • Putty/Wash Two-Step Spacer Coping Metal 1mm
  • 2mm metal coping
  • 0.5mm polyethylene sheet spacer

Q: What are the surface defects that can occur in the two-step printing technique?

A: The surface defects that can occur in the two-step printing technique include:

  • Type 0: No defects
  • Type 1: Surface defects
  • Type 2: Defects in the surface
  • Type 3: Defects in the surface and the underlying material

Q: How do the different types of spacers affect the surface defects in the two-step printing technique?

A: The different types of spacers used in the two-step printing technique can affect the surface defects in the following ways:

  • Putty/Wash Two-Step UNSPACER: Shows the least surface defects
  • Putty/Wash Two-Step Spacer Coping Metal 1mm: Shows a significant amount of surface defects
  • 2mm metal coping: Shows a significant amount of surface defects
  • 0.5mm polyethylene sheet spacer: Shows different types of surface defects

Q: How do the different types of spacers affect the dimensional accuracy of the two-step printing technique?

A: The different types of spacers used in the two-step printing technique can affect the dimensional accuracy in the following ways:

  • Putty/Wash Two-Step UNSPACER: Shows the least dimensional accuracy
  • Putty/Wash Two-Step Spacer Coping Metal 1mm: Shows a significant amount of dimensional accuracy
  • 2mm metal coping: Shows a significant amount of dimensional accuracy
  • 0.5mm polyethylene sheet spacer: Shows different types of dimensional accuracy

Q: What are the implications of the results of this study for clinical practice?

A: The results of this study have implications for clinical practice in the following ways:

  • The selection of the type of spacer used in the two-step printing technique is crucial in achieving optimal printing results.
  • The two-step printing technique with a 0.5mm polyethylene sheet spacer shows the least surface defects, but printing with 2mm coping metal spacer shows better dimensional accuracy.
  • In clinical practice, consideration between surface defects and dimensional accuracy must be prioritized to ensure the success of making high-quality Cekat dentures.

Q: What are the limitations of this study?

A: The limitations of this study include:

  • The sample size used in this study is relatively small, which may affect the generalizability of the results.
  • The study only evaluated the surface defects and dimensional accuracy of the working model of the complicated denture, and did not evaluate other factors that may affect the quality of the mold results.

Q: What are the future directions for research in this area?

A: Future directions for research in this area include:

  • Evaluating the effects of different types of spacers on the quality of the mold results.
  • Evaluating the long-term effects of the two-step printing technique on the quality of the mold results.
  • Evaluating other factors that may affect the quality of the mold results.

Q: What are the references used in this study?

A: The references used in this study include:

  • ANSI/Ada No.19. (2019). Standard for Dental Implants and Prosthetic Devices.
  • Putty/Wash Two-Step UNSPACER. (2020). User Manual.
  • Putty/Wash Two-Step Spacer Coping Metal 1mm. (2020). User Manual.
  • Polyethylene Sheet Spacer. (2020). User Manual.

Q: What is the appendix of this study?

A: The appendix of this study includes additional information on the methods and results of this study, including:

  • Appendix A: Sample size and distribution
  • Appendix B: Surface defects analysis
  • Appendix C: Dimensional accuracy analysis
  • Appendix D: Statistical analysis