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Summary of Analysis of the Statistical Comparability of the Hardness and Wear of Polymeric Materials

for Orthodontic Applications


Ivo Domagała, Krzysztof Przystupa, [...], and Mariana Levkiv




Reference

 

 

 

(Ref ID): PMC8197806


Chosen Image filename:  PMC8197806_Figure_01.jpg

 



Document structure and format:

 

I. Introduction

 

The research paper titled "Analysis of the Statistical Comparability of the Hardness and Wear of Polymeric Materials for Orthodontic Applications" explores the hardness and wear properties of polymeric materials used in orthodontic appliances. The study aims to experimentally compare the indentation hardness, scratch hardness, and sliding wear of four selected polymeric materials and determine their statistical comparability.

 

II. Methodology

 

The study employed a comparative research design. Four commercial polymeric materials used in orthodontic applications were selected for analysis. The researchers conducted shore hardness tests, scratch tests using a Rockwell indenter, and sliding wear tests using the ball-on-disc method. Data collection techniques included measuring hardness and wear parameters and conducting statistical analyses using PCA (Principal Component Analysis) and correlation analysis.

 

However, the study may have some limitations, such as the selection of only four polymeric materials and the use of specific testing methods. These limitations should be considered when interpreting the results.

 

III. Results

 

The key findings of the research indicate that the results of scratch hardness measurements using a contact profilometer correlated more strongly with shore hardness than those made using an optical microscope. The PCA analysis revealed that shore hardness explains 45% of the total variance across all materials tested. This suggests that the scratch hardness method combined with the use of a profilometer allows for a better ranking of orthodontic polymeric materials.

 

IV. Discussion

 

In light of the research question and objectives, the results demonstrate that the scratch hardness method, when combined with a profilometer, provides a more explicit ranking of orthodontic polymeric materials. This ranking can help in the selection of materials with better wear resistance. The findings have implications for the durability and clinical success of orthodontic appliances.

 

The significance of this study lies in its contribution to the understanding of the hardness and wear properties of polymeric materials used in orthodontic applications. By identifying the factors that contribute to the variation in hardness and wear among materials, dental practitioners can make informed choices regarding the selection and performance of orthodontic appliances.

 

However, it is important to acknowledge the limitations of this study. Further research is needed to expand the sample size, include more diverse polymeric materials, and explore additional testing methods to provide a more comprehensive analysis of the hardness and wear properties.

 

V. Conclusion

 

In conclusion, the research paper highlights the importance of analyzing the hardness and wear properties of polymeric materials used in orthodontic appliances. The study found that the scratch hardness method, when combined with a profilometer, offers a better ranking of polymeric materials. This research contributes valuable insights into enhancing the durability and performance of orthodontic appliances. Further investigation is warranted to explore additional materials and testing methods to fully understand the hardness and wear characteristics of polymeric materials in orthodontics.

 

Figure 1: A patient 35 years old with bruxism. Tooth wear with attrition facets
Courtesy of PMC8197806

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