Citotoxicidade de soldas elétricas a ponto: estudo in vitro
作者： Rogério Lacerda dos Santos , Matheus Melo Pithon , Leonard Euler A. G. Nascimento , Fernanda Otaviano Martins , Maria Teresa Villela Romanos
DOI: 10.1590/S2176-94512011000300006
关键词:
摘要: Objective: The welding process involves metal ions capable of causing cell lysis. In view this fact, the aim study was to test hypothesis that cytotoxicity is present in different types alloys (CrNi, TMA, NiTi) commonly used orthodontic practice when these are subjected electric spot welding. Methods: Three were evaluated study. Thirty-six specimens fabricated, 6 for each wire combination, and divided into groups: Group SS (stainless steel), ST (steel with TMA), SN NiTi), TT (TMA TN group NN (NiTi NiTi). All groups assessed terms their potential oral tissues. first cleaned isopropyl alcohol sterilized ultraviolet light (UV). A assay performed using cultured cells (strain L929, mouse fibroblast cells), which tested viable neutral red dye-uptake over 24 hours. Analysis variance multiple comparison (ANOVA), as well Tukey employed (p 0.05). Cell viability higher group, followed by ST, TN, SS, NS NN. Conclusions: It became evident NiTi alloy wires caused a greater amount Electric found cause little
dentalpress.com.br参考文章(25)
Aynur Medine Şahin Saǧlam, Vahide Baysal, A. Murat Ceylan, Nickel and cobalt hypersensitivity reaction before and after orthodontic therapy in children. The journal of contemporary dental practice. ,vol. 5, pp. 79- 90 ,(2004) , 10.5005/JCDP-5-4-79
Darcy Flávio Nouer, Mario Alexandre Coelho Sinhoreti, Lourenço Correr Sobrinho, Rafael Leonardo Xediek Consani, Marcos Rogério de Mendonça, Estudo comparativo da resistência à tração de soldas de prata e super micro ponto, utilizadas em ortodontia Revista da Faculdade de Odontologia - UPF. ,vol. 2, ,(1997) , 10.5335/RFO.V2I1.1411
Amal El Safty, Khalid El Mahgoub, Sawsan Helal, Neveen Abdel Maksoud, Zinc Toxicity among Galvanization Workers in the Iron and Steel Industry Annals of the New York Academy of Sciences. ,vol. 1140, pp. 256- 262 ,(2008) , 10.1196/ANNALS.1454.007
T. Schäfer, E. Böhler, S. Ruhdorfer, L. Weigl, D. Wessner, B. Filipiak, H. E. Wichmann, J. Ring, Epidemiology of contact allergy in adults. Allergy. ,vol. 56, pp. 1192- 1196 ,(2001) , 10.1034/J.1398-9995.2001.00086.X
Dieter Cadosch, Erwin Chan, Oliver P. Gautschi, Hans-Peter Simmen, Luis Filgueira, Bio-corrosion of stainless steel by osteoclasts-in vitro evidence Journal of Orthopaedic Research. ,vol. 27, pp. 841- 846 ,(2009) , 10.1002/JOR.20831
Margret Rosa Grimsdottir, Nils R. Gjerdet, Arne Hensten-Pettersen, Composition and in vitro corrosion of orthodontic appliances American Journal of Orthodontics and Dentofacial Orthopedics. ,vol. 101, pp. 525- 532 ,(1992) , 10.1016/0889-5406(92)70127-V
Mark T. Donovan, John Jin-Jong Lin, William A. Brantley, John P. Conover, Weldability of beta titanium arch wires American Journal of Orthodontics. ,vol. 85, pp. 207- 216 ,(1984) , 10.1016/0002-9416(84)90060-5
A. David, In vitro cytotoxicity of orthodontic archwires in cortical cell cultures The European Journal of Orthodontics. ,vol. 26, pp. 421- 426 ,(2004) , 10.1093/EJO/26.4.421
Leena Peltonen, Nickel sensitivity in the general population. Contact Dermatitis. ,vol. 5, pp. 27- 32 ,(1979) , 10.1111/J.1600-0536.1979.TB05531.X
Julie C. Schultz, Elizabeth Connelly, Lynn Glesne, Erin M. Warshaw, Cutaneous and oral eruption from oral exposure to nickel in dental braces. Dermatitis. ,vol. 15, pp. 154- 157 ,(2004) , 10.2310/6620.2004.04022