Volume 10, Issue 1 (3-2025)
J Res Dent Maxillofac Sci 2025, 10(1): 40-50 |
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Golla V P, Mantena S R, Alla R K, Guduri V, Sajjan MC S, D B R et al . Mechanical Properties of Denture Base Materials Modified with Zirconia Nanotubes. J Res Dent Maxillofac Sci 2025; 10 (1) :40-50
URL: http://jrdms.dentaliau.ac.ir/article-1-642-en.html
URL: http://jrdms.dentaliau.ac.ir/article-1-642-en.html
Vamsee Priya Golla1 
, Satyanarayana Raju Mantena1 , Rama Krishna Alla *2 , Vineeth Guduri1 , Suresh Sajjan MC1 , Bheemalingeswara Rao D1 , Deepika Kandukuri1
, Satyanarayana Raju Mantena1 , Rama Krishna Alla *2 , Vineeth Guduri1 , Suresh Sajjan MC1 , Bheemalingeswara Rao D1 , Deepika Kandukuri1
1- Department of Prosthodontics, Vishnu Dental College, Bhimavaram, Andhra Pradesh, India
2- Department of Dental Materials, Vishnu Dental College, Bhimavaram, Andhra Pradesh, India ,ramakrishna.a@vdc.edu.in
2- Department of Dental Materials, Vishnu Dental College, Bhimavaram, Andhra Pradesh, India ,
Abstract: (123 Views)
Background and Aim: Several studies have investigated the effect of addition of fillers on mechanical strength of denture base materials. This study aimed to evaluate the mechanical properties of heat-cure denture base materials incorporated with different concentrations of zirconia nanotubes (ZNTs).
Materials and Methods: In this in vitro study, 90 specimens were fabricated from each denture base resin material (Trevlon and DPI) and divided into three groups (n=30) based on the mechanical properties to be tested (flexural strength, impact strength, and surface hardness). Thirty specimens in each group were further subdivided into 5 subgroups (n=6) based on the weight percentage (wt%) of ZNTs (0.0wt%, 0.5wt%, 1.0wt%, 2.0wt%, and 5.0wt%). The specimens were subjected to flexural strength, impact strength, and surface hardness testing using a universal testing machine, IZOD impact testing machine, and Vickers hardness tester, respectively. One-way ANOVA and post-hoc tests were used for statistical analyses (alpha=0.05).
Results: The maximum flexural strength was observed following the inclusion of 2.0wt% and 1.0wt% ZNTs in Trevlon and DPI, respectively. The maximum impact strength was obtained with the addition of 1.0wt% ZNTs to both Trevlon and DPI. The surface hardness of Trevlon and DPI increased significantly with an increase in the concentration of ZNTs (P=0.005). Flexural strength (P=0.000) and surface hardness (P=0.005) were significantly different among various concentrations of Trevlon and DPI, but the impact strength (P=0.013) was significantly different only in DPI.
Conclusion: The optimal concentration of ZNTs to obtain enhanced mechanical properties of denture base resins was found to be 1.0wt%.
Materials and Methods: In this in vitro study, 90 specimens were fabricated from each denture base resin material (Trevlon and DPI) and divided into three groups (n=30) based on the mechanical properties to be tested (flexural strength, impact strength, and surface hardness). Thirty specimens in each group were further subdivided into 5 subgroups (n=6) based on the weight percentage (wt%) of ZNTs (0.0wt%, 0.5wt%, 1.0wt%, 2.0wt%, and 5.0wt%). The specimens were subjected to flexural strength, impact strength, and surface hardness testing using a universal testing machine, IZOD impact testing machine, and Vickers hardness tester, respectively. One-way ANOVA and post-hoc tests were used for statistical analyses (alpha=0.05).
Results: The maximum flexural strength was observed following the inclusion of 2.0wt% and 1.0wt% ZNTs in Trevlon and DPI, respectively. The maximum impact strength was obtained with the addition of 1.0wt% ZNTs to both Trevlon and DPI. The surface hardness of Trevlon and DPI increased significantly with an increase in the concentration of ZNTs (P=0.005). Flexural strength (P=0.000) and surface hardness (P=0.005) were significantly different among various concentrations of Trevlon and DPI, but the impact strength (P=0.013) was significantly different only in DPI.
Conclusion: The optimal concentration of ZNTs to obtain enhanced mechanical properties of denture base resins was found to be 1.0wt%.
Type of Study: Original article |
Subject:
Prosthodontics
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