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VOLUME 11 , ISSUE 4 ( July-August, 2020 ) > List of Articles
D Krishna Prasad, Easha Singh Dogra, Chethan Hegde
Keywords : Metal pattern, Palatal vault, Reinforcement,Denture base
Citation Information : Prasad DK, Dogra ES, Hegde C. A Study to Evaluate Midline Fracture Resistance of Maxillary Acrylic Denture Base Reinforced with Metal Pattern in Various Palatal Contours. World J Dent 2020; 11 (4):287-293.
License: CC BY-NC 4.0
Published Online: 07-10-2020
Copyright Statement: Copyright © 2020; Jaypee Brothers Medical Publishers (P) Ltd.
Aim and objective: The aim and objective of this study was to investigate the effect of reinforcing metal patterns on the midline fracture resistance of maxillary complete denture bases in various palatal contours. Materials and methods: Sixty maxillary acrylic heat cure denture bases were made. They were subdivided into three groups depending on the palatal vault shape. Further, the groups were subdivided based on the metal pattern design. Three metal pattern designs are used in this study, and the metal patterns are made from 23-gauge stainless steel round wire. The maxillary wax patterns were processed, and metal patterns were reinforced in the packing stage. The denture bases were finished and polished. The samples were checked for inclusion and exclusion criteria. The samples were tested under universal testing machine. The value at which the denture bases fractured were noted down. Results: Variance analysis test has been done to evaluate the significance. Tukey post hoc test was done to evaluate pairwise analysis of metal patterns and different palatal vault on each other. A significant difference (p value < 0.05) was seen in the fracture resistance value of control group and the reinforced metal group denture base. Among the design of the metal pattern, square-shaped pattern had a significant(p value < 0.05) difference in all the palatal vault shape. Conclusion: The reinforced denture bases with metal patterns had a significant increase in fracture resistance values of the denture bases in all the three palatal vault shapes. Therefore, metal patterns can be used to improve the fracture resistance. Clinical significance: Metal patterns can be used in clinical cases where shallow and deep palatal vaults is present to reinforce the complete denture prosthesis. By this method reinforcement can be done at a low cost without effecting the esthetics of the dentures.
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