Estudio comparativo de defectos superficiales producidos en dos limas reciprocantes sometidas a diferentes tratamientos térmicos, luego de su uso en raíces mesiales de primeros molares inferiores. Ex Vivo
Keywords:
cambios estructurales, WAVEONE, AFBR 1, resistencia a la fractura cíclicaAbstract
Las limas de Níquel Titanio (NiTI) ofrecen una mayor elasticidad y adaptación a la morfología de los conductos radiculares permitiendo realizar una mejor preparación y conformación radicular. Estos instrumentos cuentan con la capacidad de brindar mejor resistencia a la fatiga cíclica y la torsional. El objetivo de esta investigación fue describir los cambios estructurales macroscópicos de las limas Small del sistema Wave One (21/06) y AFBR 1 (20/06) luego de realizar diferentes ciclos de instrumentación en raíces mesiales de molares inferiores. Materiales y métodos: Se utilizaron 20 limas Small (21/06) del sistema Wave One (Dentsply, Maillefer, Suiza), y 20 limas AFBR 1(20/06) (Shanghái Fanta Dental). Las cuales fueron asignadas aleatoriamente en 2 grupos, Grupo W, Grupo R. Todas las limas fueron sometidas a un proceso de instrumentación y posteriormente fueron fotografiadas con Cámara Profesional Nikon DX AF/S 18-55 mm 1:3.5-5.6G y Macro 70-300. Con Flash para ser evaluadas. Resultados: Los resultados obtenidos señalan que no se observaron diferencias estadísticamente significativas (p>0.05) entre las curvas de sobrevida en cuanto a la presencia de partículas entre los grupos de limas (R y W). Se observaron diferencias estadísticamente significativas (p<0.05) entre las curvas de sobrevida de la presencia de grietas entre los grupos de limas (R y W). Las mismas aparecieron con mayor velocidad en las limas tipo R. Se observaron diferencias estadísticamente significativas (p<0.05) entre las curvas de sobrevida de la presencia de estiramiento entre los grupos de limas (R y W). Los estiramientos aparecieron de forma más temprana en las limas tipo R. Conclusión: Todas las limas Small del sistema WaveOne analizadas en este estudio presentaron cambios estructurales a partir del cuarto uso después de instrumentar un promedio de 50 conductos, y todas las limas AFBR1 analizadas en este estudio presentaron cambios estructurales a partir del tercer uso después de instrumentar un promedio de 50 conductos. Se aclara que, durante esta investigación ningún instrumento sufrió fractura.
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Peters OA, Morgental RD, Schulze KA, Paque F, Kopper PM, Vier-Pelisser FV. Determining cutting efficiency of nickel-titanium coronal flaring instruments used in lateral action. Int Endod J. 2014; 47:505-13.
Pongione G, Pompa G, Milana V, Di Carlo S, Giansiracusa A, Nicolini E, et al. Flexibility and resistance to cyclic fatigue of endodontic instruments made with different nickel-titanium alloys: a comparative test. Ann Stomatol. 2012; III:119-22.
Bird DC, Chambers D, Peters OA. Usage parameters of nickel-titanium rotary instruments: a survey of endodontists in the United States. J Endod. 2009; 35:1193-7.
Pereira ES, Viana AC, Buono VT, Peters OA, Bahia MG. Behavior of nickeltitanium instruments manufactured with different thermal treatments. J Endod. 2015; 41:67-71.
Shen Y, Zhou HM, Zheng YF, Campbell L, Peng B, Haapasalo M. Metallurgical characterization of controlled memory wire nickel-titanium rotary instruments. J Endod. 2011; 37:1566-71.
Berutti E, Chiandussi G, Gaviglio I, Ibba A. Comparative analysis of torsional and bending stresses in two mathematical models of nickel-titanium rotary instruments: ProTaper versus ProFile. J Endod. 2003; 29:15-9.
Braga LC, Faria Silva AC, Buono VT, de Azevedo Bahia MG. Impact of heat treatments on the fatigue resistance of different rotary nickel-titanium instruments. J Endod. 2014; 40:1494-7.
Hilfer PB, Bergeron BE, Mayerchak MJ, Roberts HW, Jeansonne BG. Multiple autoclave cycle effects on cyclic fatigue of nickel-titanium rotary files produced by new manufacturing methods. J Endod. 2011; 37:72-4.
Kuhn G, Tavernier B, Jordan L. Influence of structure on nickel-titanium endodontic instruments failure. J Endod. 2001; 27:516-20.
Otsuka K, Wayman C. Shape Memory Materials. 1 st ed. Cambridge. UK: Cambridge University Press;1998.
Hou X, Yahata Y, Hayashi Y, Ebihara A, Hanawa T, Suda H. Phase transformation behaviour and bending property of twisted nickel-titanium endodontic instruments. Int Endod J. 2011; 44:253-8.
Choi J, Oh S, Kim YC, Jee KK, Kum K, Chang S. Fracture resistance of K3 nickel-titanium files made from different thermal treatments. Bioinorg Chem Appl. 2016; 2016:1-6.
Saburi T. Ti-Ni Shape Memory Alloys. En: Otsuka K, Wayman C, eds. Shape Memory Materials. 1 st. ed Cambridge. UK: Cambridge University Press;1998: p.49-96.
Zinelis S, Eliades T, Eliades G. A metallurgical characterization of ten endodontic Ni-Ti instruments: assessing the clinical relevance of shape memory and superelastic properties of Ni-Ti endodontic instruments. Int Endod J. 2010; 43:125-34.
Perez-Higueras JJ, Arias A, de la Macorra JC. Análisis de los factores que influyen en la resistencia de los instrumentos de níquel-titanio a la fatiga cíclica flexural (tesis doctoral). Universidad Complutense de Madrid, Madrid, España. 2016.
Takayuki Y, Hisashi D, Equo K, Hitoshi H. Super-elastic property of Ti-Ni alloy for use in dentistry. Frontiers Med Biol Engng. 2000; 10:97-103.
Testarelli L, Plotino G, Al-Sudani D, Vincenzi V, Giansiracusa A, Grande NM, et al. Bending properties of a new nickel-titanium alloy with a lower percent by weight of nickel. J Endod. 2011; 37:1293-5.
Leandro de Arruda Santos BE, de Azevedo Bahía MG, Barbosa de Las Casas E, Lopes Buono VT. Comparison of the mechanical behaviour between controlled memory and superelastic nickel-titanium files via Finite Element Analysis. J Endod. 2013; 39:1444-47.
Miyai K, Ebihara A, Hayashi Y, Doi H, Suda H, Yoneyama T. Influence of phase transformation on the torsional and bending properties of nickel–titanium rotary endodontic instruments. Int Endod J. 2006; 39:119-26.
Yahata Y, Yoneyama T, Hayashi Y, Ebihara A, Doi H, Hanawa T, et al. Effect of heat treatment on transformation temperatures and bending properties of nickeltitanium endodontic instruments. Int Endod J. 2009; 42:621-6.
Zinelis S, Darabara M, Takase T, Ogane K, Papadimitriou GD. The effect of thermal treatment on the resistance of nickel-titanium rotary files in cyclic fatigue. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2007; 103:843-7.
Brantley WA, Svec TA, Iijima M, Powers JM, Grentzer TH. Differential scanning calorimetric studies of nickel titanium rotary endodontic instruments. J Endod. 2002; 28:567-72.
De Vasconcelos RA, Murphy S, Carvalho CA, Govindjee RG, Govindjee S, Peters OA. Evidence for reduced fatigue resistance of contemporary rotary instruments exposed to body temperature. J Endod. 2016; 42:782-7.
Hieawy A, Haapasalo M, Zhou H, Wang ZJ, Shen Y. Phase transformation behavior and resistance to bending and cyclic fatigue of ProTaper Gold and ProTaper Universal instruments. J Endod. 2015; 41:1134-8.
Alapati SB, Brantley WA, Iijima M, Schricker SR, Nusstein JM, Li UM, et al. Micro-XRD and temperature-modulated DSC investigation of nickel-titanium rotary endodontic instruments. Dent Mater. 2009; 25:1221-9.
Kuhn G, Jordan L. Fatigue and mechanical properties of nickel-titanium endodontic instruments. J Endod. 2002; 28:716-20.
Zhou HM, Shen Y, Zheng W, Li L, Zheng YF, Haapasalo M. Mechanical properties of controlled memory and superelastic nickel-titanium wires used in the manufacture of rotary endodontic instruments. J Endod. 2012; 38:1535-40.
Parashos P, Messer HH. Rotary NiTi instrument fracture and its consequences. J Endod. 2006; 32:1031-43.
Plotino G, Testarelli L, Al-Sudani D, Pongione G, Grande NM, Gambarini G. Fatigue resistance of rotary instruments manufactured using different nickel-titanium alloys: a comparative study. Odontology. 2014; 102:31-5.
Sattapan B, Nervo GJ, Palamara JE, Messer HH. Defects in rotary nickeltitanium files after clinical use. J Endod. 2000; 26:161-5.
Larsen CM, Watanabe I, Glickman GN, He J. Cyclic fatigue analysis of a new generation of nickel titanium rotary instruments. J Endod. 2009; 35:401-3.
Pruett JP, Clement DJ, Carnes Jr. DL. Cyclic fatigue testing of nickel-titanium endodontic instruments. J Endod. 1997; 23:77-85.
Plotino G, Grande NM, Cordaro M, Testarelli L, Gambarini G. A review of cyclic fatigue testing of nickel-titanium rotary instruments. J Endod. 2009; 35:1469-76.
Cheung GPS, Peng B, Bian Z, Shen Y, Darvell BW. Defects in ProTaper S1 instruments after clinical use: fractographic examination. Int Endod J. 2005; 38:802-9.
Hull D. Fractography: Observing, Measuring and Interpreting Fracture Surface Topography. Cambridge, UK: Cambridge University Press; 1999.
Peters OA. Current challenges and concepts in the preparation of root canal systems: a review. J Endod. 2004; 30:559-67.
Kim JY, Cheung GS, Park SH, Ko DC, Kim JW, Kim HC. Effect from cyclic fatigue of nickel-titanium rotary files on torsional resistance. J Endod. 2012; 38:527-30.
Iqbal MK, Kohli MR, Kim JS. A retrospective clinical study of incidence of root canal instrument separation in an endodontics graduate program: a PennEndo database study. J Endod. 2006; 32:1048-52.
Spili P, Parashos P, Messer HH. The impact of instrument fracture on outcome of endodontic treatment. J Endod. 2005; 31:845-50.
Peng B, Shen Y, Cheung GSP, Xia TJ. Defects in ProTaper S1 instruments after clinical use: longitudinal examination. Int Endod J 2005; 38:550-7.
Yared GM, Kulkami GK. Failure of ProFile NiTi instruments used by an inexperienced operator under access limitations. Int Endod J. 2002; 35:536-41.
Sonntag D, Delschen S, Stachniss V. Root-canal shaping with manual and rotary Ni-Ti files performed by students. Int Endod J. 2003; 36:715-23.
Blum JY, Cohen A, Machtou P, Micallef JP. Analysis of forces developed during mechanical preparation of extracted teeth using ProFile NiTi rotary instruments. Int Endod J. 1999; 32:24-31.
Daugherty DW, Gound TG, Comer TL. Comparison of fracture rate, deformation rate, and efficiency between rotary endodontic instruments driven at 150 rpm and 350 rpm. J Endod. 2001; 27:93-5.
Martín B, Zelada G, Varela P, Bahillo JG, Magán F, Ahn S, et al. Factors influencing the fracture of nickel-titanium rotary instruments. Int Endod J. 2003; 36:262/6
Peters OA, Peters CI, Schönenberger K, Barbakow F. ProTaper rotary root canal preparation: assessment of torque and force in relation to canal anatomy. Int Endod J. 2003; 36:93-9.
Oh SR, Chang SW, Lee Y, Gu Y, Son WJ, Lee W, et al. A comparison of nickeltitanium rotary instruments manufactured using different methods and cross-sectional areas: ability to resist cyclic fatigue. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010; 109:622-8.
Perez-Higueras JJ, Arias A, de la Macorra JC, Peters OA. Differences in cyclic fatigue resistance between ProTaper Next and ProTaper Universal instruments at different levels. J Endod. 2014; 40:1477-81.
Mize SB, Clement DJ, Pruett JP, Carnes Jr. DL. Effect of sterilization on cyclic fatigue of rotary nickel-titanium endodontic instruments. J Endod. 1998; 24:843-7.
McSpadden JT. Mastering the technique. En: McSpadden J, ed. Mastering Endodontic Instrumentation. Chattanooga (TN): Cloudland Institute;2007: p.105-24.
Bahia MG, Buono VT. Decrease in the fatigue resistance of nickel-titanium rotary instruments after clinical use in curved root canals. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2005; 100:249-55.
Craveiro de Melo MC, de Azevedo Bahia MG, Lopes Buono VT. Fatigue resistance of engine-driven rotary nickel-titanium endodontic instruments. J Endod. 2002; 28:765-9.
Gambarini G, Gerosa R, De Luca M, Garala M, Testarelli L. Mechanical properties of a new and improved nickel-titanium alloy for endodontic use: an evaluation of file flexibility. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2008; 105:798-800.
Javier Fernando Gutiérrez Barreto. Diana Carolina Cajamarca Medina. Johanna Carolina Monroy Navas. Structural Alterations of Primary File after Use. doi: 10.11144/Javeriana.uo34-73.aelp.
Thalita Miranda Vieira. Resistência à fadiga cíclica de instrumentos com tratamento térmico Blue em diferentes temperaturas.
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