Influence of Alcohol and Alcohol-free Mouthrinses on Force Degradation of Different Types of Space Closure Auxiliaries used in Sliding Mechanics

Introduction: The objective of the study was to evaluate the percentage of force degradation of elastomeric chains, NiTi closed coil spring and stainless steel closed coil spring at different time intervals in different media. Materials and methods: Three types of space closing auxiliaries, such as elastomeric chains, NiTi closed coil springs and stainless steel coil springs immersed in artificial saliva, alcohol-free mouthrinse (Colgate plax) and alcohol-containing mouthrinse (Listerine) at time interval of 1, 4, 7,14, 21 and 28 days were divided into nine groups of 15 each: Group I— 15 polyurethane elastomeric chain immersed inside artificial saliva (Control). Group II—15 polyurethane elastomeric chain immersed inside alcohol-free mouthrinse. Group III— 15 polyurethane elastomeric chain immersed inside alcoholcontaining mouthrinse. Group IV—15 stainless steel closed coil springs immersed inside artificial saliva (Control). Group V— 15 stainless steel closed coil springs immersed inside alcoholfree mouthrinse. Group VI—15 stainless steel closed coil springs immersed inside alcohol-containing mouthrinse. Group VII— 15 NiTi closed coil springs immersed inside artificial saliva (Control). Group VIII—15 nickel titanium closed coil springs immersed inside alcohol-free mouthrinse. Group IX— 15 NiTi closed coil springs immersed inside alcohol-containing mouthrinse. The percentage of force degradation was measured with the universal testing machine. Results: The force produced by elastomeric chain, stainless steel closed coil spring and NiTi closed coil spring at seven time intervals in artificial saliva, alcohol-free mouthwash and alcohol-containing mouthwash showed a statistically significant difference (p < 0.001). Conclusion: The force degradation in alcohol-containing mouthwash solution (Listerine) is more as compared to alcoholfree mouthwash solution (Colgate plax).

[1]  P. Monaghan,et al.  Effect of disinfecting solutions on the mechanical properties of orthodontic elastomeric ligatures. , 2007, The Angle orthodontist.

[2]  T. Eliades,et al.  Orthodontic latex elastics: a force relaxation study. , 2006, The Angle orthodontist.

[3]  C. Flores‐Mir,et al.  In vivo comparison of force decay between injection molded and die-cut stamped elastomers. , 2006, American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics.

[4]  T. Eliades,et al.  Tensile properties of orthodontic elastomeric chains. , 2004, European journal of orthodontics.

[5]  I. Watanabe,et al.  Surface changes induced by fluoride prophylactic agents on titanium-based orthodontic wires. , 2003, American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics.

[6]  O. Barwart.  The effect of temperature change on the load value of Japanese NiTi coil springs in the superelastic range. , 1996, American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics.

[7]  W. N. Wang,et al.  Force decay of elastomeric chain--a serial study. Part II. , 1993, American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics.

[8]  F. Miura,et al.  The super-elastic Japanese NiTi alloy wire for use in orthodontics. Part III. Studies on the Japanese NiTi alloy coil springs. , 1988, American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics.

[9]  E. F. Harris,et al.  Nitinol arch wire in a simulated oral environment: changes in mechanical properties. , 1988, American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics.

[10]  B. Ingervall,et al.  Laboratory and intra-oral tests of the degradation of elastic chains. , 1986, European journal of orthodontics.

[11]  J. V. von Fraunhofer,et al.  The effects of artificial saliva and topical fluoride treatments on the degradation of the elastic properties of orthodontic chains. , 1992, The Angle orthodontist.