Laboratory Evaluation of IPS-lithium Disilicate Orthodontic Brackets
In vitro Study
DOI:
https://doi.org/10.25156/ptj.v10n1y2020.pp135-139Keywords:
Ceramic brackets, IPS E-max press, Orthodontic bracket wings, Translucency, Vickers hardness testAbstract
The purpose of the study is to evaluate the microhardness and light transmission through new Emax brackets with two ceramic brackets commercially available in the markets. The brackets were divided into three groups: (1) E max brackets (IPS E-max press, Ivoclar, Germany), (2) Gemini clear brackets (Unitek, 3M, USA), and (3) discovery pearl ceramic brackets (Dentaurum, Germany). The Vickers hardness test was used to evaluate the hardness of the wings in addition the light transmission of three brackets types were tested through using an orthodontic light cure device and light meter. The hardness test of discovery pearl ceramic brackets and Gemini clear brackets gave significantly higher than E.max one while later gave significantly more light transmission through it when compared with another two brackets. In conclusion, the noticeable tested brackets make E max material one of choice for modern esthetic brackets in future although the hardness is less comparing the other tested brackets due to the purity of material compering with other test brackets which are reinforced of their material, the new material requiring improving of mechanical performances.
Downloads
References
Ali, O., M. Makou, T. Papadopoulos and G. Eliades. 2011. Laboratory evaluation of modern plastic brackets. Eur. J. Orthod. 34(2012): 595-692.
Al-Juaila, E., E. Osman, L. Segaan, M. Shrebaty and E. A. Farghaly. 2018. Comparison of translucency for different thicknesses of recent types of esthetic zirconia ceramics versus conventional ceramics. Future Dent. J. 4(2): 297-30.
Chien, R. D., S. C. Chen, P. H. Lee and J. S. Huang. 2004. Study on the molding characteristics and mechanical properties of injection-molded foaming polypropylene parts. J. Reinforc. Plast. Compos. 23(4): 429-444.
Czigola, A., E. Abram, Z. I. Kovacs, K. Marton, P. Hermann and J. Borbely. 2019. Effects of substrate, ceramic thickness, translucency, and cement shade on the color of CAD/CAM lithium-disilicate crowns. J. Esthet. Restor. Dent. 31(5): 457-464.
Datla, S. R., R. K. Alla, V. R. Alluri, J. Babu and A. Konakanchi. 2015. Part II-recent advances in dental ceramics. Am. J. Mater. Eng. Technol. 3(2): 19-26.
Denry, I. and J. Holloway. 2010. Ceramics for dental applications: A review. Materials. 3(1): 351-368.
Eliades, T. and C. H. Bourauel. 2005. Intraoral aging of orthodontic materials: The picture we miss and its clinical relevance. Am. J. Orthod. Dentofacial Orthop. 127: 403-412.
Eliades, T., W. N. Johnston and G. Eliades. 1995. Direct light transmittance through ceramic brackets. Am. J. Orthod. Dentofacial Orthop. 107(1): 11-19.
Figueiredo-Pina, C. G., N. Patas, J. Canhoto, R. Cláudio, S. M. Olhero, A. P. Serro, A. C. Ferro and M. Guedes. 2016. Tribological behaviour of unveneered and veneered lithium 47disilicate dental material. J. Mech. Behav. Biomed. Mater. 53: 226-238.
Galantea, R., C. G. Figueiredo-Pina and A. P. Serro. 2019. Additive manufacturing of ceramics for dental applications: A review. J. Dent. Mater. 35(6): 825-846.
Griggs, J. A. 2007. Recent advances in materials for all-ceramic restorations. Dent. Clin. North Am. 51(3): 713-727.
Guerrero, A. P., O. G. Filho, O. Tanaka, E. S. Camargo and S. Vieira. 2010. Evaluation of frictional forces between ceramic brackets and archwires of different alloys compared with metal brackets. Braz. Oral Res. 24(1): 1806-8324.
Guignone, B. C., L. K. Silva, R. V. Soares, E. Akaki, M. C. Goiato, M. M. Pithon and D. D. Oliveira. 2015. Color stability of ceramic brackets immersed in potentially staining solutions. Dent. Press J. Orthod. 20(4): 32-38.
Holand, W. and G. H. Beall. 2012. Glass Ceramic Technology. John Wiley & Sons, United States.
Holand, W., V. Rheinberger, E. Apel, C. Ritzberger, F. Rothbrust, H. Kappert, F. Krumeich and R. Nesper. 2009. Future perspectives of biomaterials for dental restoration. J. Eur. Ceram. Soc. 29(7): 1291-1297.
Jena, K., R. Duggal and K. Mehrotra. 2007. Physical properties and clinical characteristics of ceramic brackets: A comprehensive review. Trends Biomater. Artif. Organs. 20(2): 117-122.
Johnson, G., M. P. Walker and K. Kula. 2005. Fracture strength of ceramic bracket tie wings subjected to tension. Angle Orthod. J. 75(1): 95-100.
Kelly, J. R. and P. Benetti. 2011. Ceramic materials in dentistry: Historical evolution and current practice. Aust. Dent. J. 56(S1): 84-96.
Kukiattrakoon, B. and B. Samruajbenjakul. 2010. Shear bond strength of ceramic brackets with various base designs bonded to aluminous and fluorapatite ceramics. Eur. J. Orthod. 32: 87-93.
Luo, X. P. and L. Zhang. 2010. Effect of veneering techniques on color and translucency of Y-TZP. J. Prosthod. 19: 465e70.
Moghaddas, M. J., H. Mohammadipour and R. A. Daluyi. 2017. The effect of lithium disilicate ceramic thickness and translucency on shear bond strength of light-cured resin cement. J. Dent. Mater. Technol. 6(3): 108-116.
Monolithic Solution, Instruction for Use. 2014. Available from: https://www.emaxrevolution.com/assets/ifu-emax-press_english.pdf.
Motro, P. F. K., P. Kursoglu and E. Kazazoglu. 2012. Effects of different surface treatments on stainability of ceramics. J. Prosth. Dent. 108: 231-237.
Omori, S., W. Komada, K. Yoshida and H. Miura. 2013. Effect of thickness of zirconia-ceramic crown frameworks on strength and fracture pattern. Dent. Mater. J. 32(1): 189-194.
Ritter, R. G. 2010. Multifunctional uses of a novel ceramic-lithium disilicate. J. Esthet. Restor. Dent. 22(5): 332-341.
Saint-Jean, S. J. 2013. Dental glasses and glass-ceramics. Adv. Ceram. Dent. 2013: 255-277.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2020 Sana R. Ubaed, Omar S. Ali
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Authors who publish with this journal agree to the following terms:
1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License [CC BY-NC-ND 4.0] that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).