Surface properties of composite resins with and without fluorides for bracket bonding / Propriedades de superfície de resinas compostas com e sem fluoretos para colagem de suportes

Emillyn Jones Greijal Dias Holanda, José Guilherme Neves, Milton Santamaria-Jr, Silvia Amélia Scudeler Vedovello, Ana Rosa Costa, Heloisa Cristina Valdrighi

Abstract


The aim of this study was to evaluate the surface properties of orthodontic resins with and without fluoride. Forty disks, measuring 2 mm thick by 6 mm in diameter, were made of 4 bracket-bonding composite resins (n=10): Transbond Plus Color Change-3M/Unitek (TPCC); Transbond XT- 3M/Unitek (TXT), Orthocem -FGM (OC); Orthocem UV Trace-FGM (OCUV). The discs were photoactivated for 40 seconds with irradiance of 450 mW/cm2 and manually polished in sequence by silicon carbide sandpapers with 1200 and 2000 grain size and finished with diamond paste and felt disc. The surface microhardness analysis was performed using a Shimadzu Micro Hardness Tester HMV-2,000 (Shimadzu Corporation, Kyoto, Japan) with a load of 50 gF and a 5 second penetration time. Surface roughness readings were taken using a Surf Corder Roughness Meter (SE 1700- Kosaka, Lisboa-Portugal). For data analysis, ANOVA (one-way) was used, followed by Tukey's post-test (α=0.05). The microhardness results showed a difference (p≤0.05) in the means of the orthodontic resins between TPCC and TXT with the other groups. After the surface roughness analysis, the averages showed that TPCC resin showed higher roughness compared to OC and OCUV (p≤0.05), and there was no statistical difference with TXT. It was concluded that statistically the composite resins with fluoride showed significant difference regarding hardness and roughness.


Keywords


Orthodontics, Hardness, Composite Resin.

Full Text:

PDF

References


Maxfield BJ, Hamdan AM, Tufekci E, Shroff B, Best AM, Lindaueer SJ. Development of white spot lesions during orthodontic treatment: perceptions of patients, and general dentists. Am J Orthod Dentofacial Orthop. 2012 Mar;141(3):337-44.

Julien KC, Buschang PH, Campbell PM. Prevalence of White spot lesion formation during orthodontic treatment. Angle Orthod. 2013 Jan; 83(4):641-7.

Lucchese A, Gherlone E. Prevalence of white-spot lesions before and during orthodontic treatment with fixed appliances. Eur J Orthod. 2013 Oct; 35(5):664-8.

Tufekci E, Dixon JS, Gunsolley JC, Lindauer SJ. Prevalence of white spot lesions during orthodontic treatment white fixed appliances. Angle Orthod. 2011 Mar; 81(2):206-10.

Catherine et al. Assessment of plaque, cárie level and oral hygiene habits in patients receiving orthodontic treatmente in Chennai. Int J Advanc Res Oral Sci. 2013; 2(1):9-15.

Sirin Karaarslan ES, Bulbul M, Yildiz E, Secilmis A, Sari F, Usumez A. Effects of different polishing methods on color stability of resin composites after accelerated aging. Dent Mater J, 2013; 32(1):58-67.

Benson PE, Shah AA, Millett DT, Dyer F, Parkin N, Vine RS. Fluorides, orthodontics and demineralization: a systematic review. J Orthod. 2005 Jun; 32(2):102-114.

Ulkur F, Sungurtekin Ekçi E, Nalbantgil D, Sandalli N. In vitro effects of two topical varnish materials and Er:YAG laser irradiation on enamel demineralization around orthodontic brackets. Sci World J. 2014 May;2014:490503.

Cury JA, De Oliveira BH, Dos Santos APP, Tenuta LMA. Are fluoride releasing dental materials clinically effective on caries control? Dent Mater. 2015 Mar;32(3):323-33.

Rogers S, Chadwick B, Treasure E. Fluoride-containing orthodontic adhesives and decalcification in patients with fixed appliances: a systematic review. Am J Orthod Dentofacial Orthop. 2010 Oct; 138(4):390.e1-8.

Regalla RR, Jaday C, Babu DA, Sriram RR, Sriram SK, Kattimani VS. Evaluation and comparison of quantity and pattern of fluoride release from orthodontic adhesives: an in vitro study. J Contemp Dent Pract. 2014 Jan; 15(1):99-102.

Swapna F, Sharma S, Soni VP, Tamgadge S. Desmineralization adjacente to orthodontic brackets with fluoride releasing and conventional bonding agentes. Indian J Dent Res. 2016 Oct; 27(4):426-32.

Al-Saleh M, El-Mowafy O. Bond strength of orthodontic brackets with new self adhesive resin cements. Am J Orthod Dentofacial Orthop. 2010 Apr; 137(4):528-33.

Abdelnaby YL, Al-Wakeel ES. Effect of early orthodontic force on bond strength of orthodontic bracket bonded with different adhesives systems. Am J Orthod Dentofacial Orthop. 2010 Aug; 138(2):208-14.

Sostena MMDS, Moares JCS, Barbosa JC, Santos AD. Estudo da dureza de resinas ortodônticas fotopolimerizáveis. Rev Funec Cient – Odont. 2018 Jul-Dez; 1(1):3-14.

Benson PE, Parkin N, Dyer F, Millett DT, Furness S, Germain P. Fluorides for the prevention of early tooth decay (demineralised white lesions) during fixed brace treatment. Cochrane Database Syst Ver. 2013; 12:CD003809.

Ryou DB, Park HS, Kim KH, Kwon TY. Use of flowable composites for orthodontic bracket bonding. Angle Orthod. 2008 Nov; 78(6):1105-9.

Lon LFS, Schneider PP, Raveli DB, Nascimento DB, Guariza-Filho O. Efeito da contaminação por saliva na resistência adesiva de braquetes cerâmicos utilizando uma resina hidrofílica. Rev Odontol UNESP. 2018 May-Jun;47(3):131-136.

Bowen RL. Dental filling material composing vynilsilano treated fused sílice and a bonder consisting of the reation product of bisfhenol and glycidelmetacrylate. 2012; US patente 3000,112.

Neves AD, Discacciati JAC, Oréfice RL, Jansen WC. Correlação entre grau de conversão, microdureza e conteúdo inorgânico em compósitos. Pesqui odontol bras. 2002;16(4):349-354.

Callister Jr WB. Characteristics, applications and processing of polymers. In: Materials Science and Engineering: An Introduction. 5th edition. LTC New York, 2000; 16:465-509.

Mano EB. Polímeros como Materiais de engenharia. Edit Edgard Blucher Ltda. 2000; 7-16.

Lowder PD, Foley T, Banting DW. Bond strength of 4 orthodontic adhesives use with a caries-protective resin sealant. Am J Orthod Dentofacial Orthop. 2008 Aug; 134(2):291-5.




DOI: https://doi.org/10.34117/bjdv7n7-145

Refbacks

  • There are currently no refbacks.