Artículos de revistas
Effect Of The Curing Method And Composite Volume On Marginal And Internal Adaptation Ofcomposite Restoratives
Registro en:
Operative Dentistry. , v. 36, n. 2, p. 231 - 238, 2011.
3617734
10.2341/10-107-L
2-s2.0-80051750877
Autor
Souza E.J.
De Souza Regis M.R.
Alonso R.C.B.
De Freitas A.P.
Sinhoreti M.A.C.
Cunha L.G.
Institución
Resumen
The aim of the present study was to evaluate the influence of curing methods and composite volumes on the marginal and internal adaptation of composite restoratives. Two cavities with different volumes (Lower volume: 12.6 mm 3; Higher volume: 24.5 mm 3) were prepared on the buccal surface of 60 bovine teeth and restored using Filtek Z250 in bulk filling. For each cavity, specimens were randomly assigned into three groups according to the curing method (n=10): 1) continuous light (CL: 27 seconds at 600 mW/cm 2); 2) soft-start (SS: 10 seconds at 150 mW/cm 2+24 seconds at 600 mW/ cm 2); and 3) pulse delay (PD: five seconds at 150 mW/cm 2+three minutes with no light+25 seconds at 600 mW/cm 2). The radiant exposure for all groups was 16 J/cm 2. Marginal adaptation was measured with the dye staining gap procedure, using Caries Detector. Outer margins were stained for five seconds and the gap percentage was determined using digital images on a computer measurement program (Image Tool). Then, specimens were sectioned in slices and stained for five seconds, and the internal gaps were measured using the same method. Data were submitted to two-way analysis of variance and Tukey test (p<0.05). Composite volume had a significant influence on superficial and internal gap formation, depending on the curing method. For CL groups, restorations with higher volume showed higher marginal gap incidence than did the lower volume restorations. Additionally, the effect of the curing method depended on the volume. Regarding marginal adaptation, SS resulted in a significant reduction of gap formation, when compared to CL, for higher volume restorations. For lower volume restorations, there was no difference among the curing methods. For internal adaptation, the modulated curing methods SS and PD promoted a significant reduction of gap formation, when compared to CL, only for the lower volume restoration. Therefore, in similar conditions of the cavity configuration, the higher the volume of composite, the greater the gap formation. In addition, modulated curing methods (SS and PD) can improve the interfacial quality of composite restorations through the reduction of internal gaps in lower volume composite restoratives. 36 2 231 238 Alonso, R.C.B., Cunha, L.G., Correr, G.M., Brandt, W.C., Correr-Sobrinho, L., Sinhoreti, M.A.C., Relationship between bond strength and marginal and internal adaptation of composite restorations photocured by different methods (2006) Acta Odontologica Scandinavica, 64 (5), pp. 306-313. , DOI 10.1080/00016350600791744, PII J118749116028370 Braga, R.R., Ballester, R.Y., Ferracane, J.L., Factors involved in the development of polymerization shrinkage stress in resin-composites: A systematic review (2005) Dental Materials, 21 (10), pp. 962-970. , DOI 10.1016/j.dental.2005.04.018, PII S0109564105001685 Hilton, T.J., Can modern restorative procedures and materials reliably seal cavities? (2002) Part 2 American Journal of Dentistry, 15 (4), pp. 279-289 Condon, J.R., Ferracane, J.L., Assessing the effect of composite formulation on polymerization stress (2000) Journal of American Dental Association, 131 (4), pp. 497-503 Halvorson, R.H., Erickson, R.L., Davidson, C.L., Energy dependent polymerization of resin-based composite (2002) Dental Materials, 18 (6), pp. 463-469. , DOI 10.1016/S0109-5641(01)00069-0, PII S0109564101000690 Cunha, L.G., Alonso, R.C.B., Souza-Junior, E.J.C., Neves, A.C.E.C., Correr-Sobrinho, L., Sinhoreti, M.A.C., Influence of the curing method on the post-polymerization shrinkage stress of composite resins (2008) Journal of Applied Oral Sciences, 16 (4), pp. 266-270 Cunha, L.G., Alonso, R.C.B., Neves, A.C.E.C., De Goes, M.F., Ferracane, J.L., Sinhoreti, M.A.C., Degree of conversion and contraction stress development of a resin composite irradiated using halogen and LED at two (2009) Cfactor Level Operative Dentistry, 34 (1), pp. 24-31 Braga, R.R., Boaro, L.C.C., Kuroe, T., Azevedo, C.L.N., Singer, J.M., Influence of cavity dimensions and their derivatives (volume and 'C' factor) on shrinkage stress development and microleakage of composite restorations (2006) Dental Materials, 22 (9), pp. 818-823. , DOI 10.1016/j.dental.2005.11.010, PII S0109564105002939 Duarte, S.J.R., Dinelli, W., Da Silva, M.H., Influence of resin composite insertion technique in preparations with high C-factor (2007) Quintessence International, 38 (10), pp. 829-835 Duarte, S.J.R., Saad, J.R., Marginal adaptation of Class 2 adhesive restorations (2008) Quintessence International, 39 (5), pp. 413-419 Cunha, L.G., Alonso, R.C.B., Correr-Sobrinho, L., Ferracane, J.L., Sinhoreti, M.A.C., Modulated curing methods: Influence of contraction stress, degree of conversion and push-out bond strength of composite restoratives (2007) Journal of Dentistry, 35 (4), pp. 318-324 Cunha, L.G., Alonso, R.C.B., Pfeifer, C.S.C., De, GóM.F., Ferracane, J.L., Sinhoreti, M.A.C., Effect of irradiance and light source on contraction stress, degree of conversion and push-out bond strength of composite restoratives (2009) American Journal of Dentistry, 22 (3), pp. 165-170 Bruschi Alonso, R.C., Goncalves Cunha, L., Correr, G.M., De Goes, M.F., Correr-Sobrinho, L., Puppin-Rontani, R.M., Coelho Sinhoreti, M.A., Association of photoactivation methods and low modulus liners on marginal adaptation of composite restorations (2004) Acta Odontologica Scandinavica, 62 (6), pp. 298-304. , DOI 10.1080/00016350410001784 Brandt, W.C., De Moraes, R.R., Correr-Sobrinho, L., Sinhoreti, M.A.C., Consani, S., Effect of different photo-activation methods on push out force, hardness and cross-link density of resin composite restorations (2008) Dental Materials, 24 (6), pp. 846-850. , DOI 10.1016/j.dental.2007.09.012, PII S0109564107002503 Feilzer, A.J., De Gee, A.J., Davidson, C.L., Quantitative determination of stress reduction by flow in composite restorations (1990) Dental Materials, 6 (3), pp. 167-171 Lu, H., Stansbury, J.W., Bowman, C.N., Impact of curing protocol on conversion and shrinkage stress (2005) Journal of Dental Research, 84 (9), pp. 822-826 Yoshikawa, T., Burrow, M.F., Tagami, J., A light curing method for improving marginal sealing and cavity wall adaptation of resin composite restorations (2001) Dental Materials, 17 (4), pp. 359-366. , DOI 10.1016/S0109-5641(00)00095-6, PII S0109564100000956 Yap, A.U.J., Ng, S.C., Slow, K.S., Soft-start polymerization: Influence on effectiveness of cure and post-gel shrinkage (2001) Operative Dentistry, 26 (3), pp. 260-266 Lim, B.-S., Ferracane, J.L., Sakaguchi, R.L., Condon, J.R., Reduction of polymerization contraction stress for dental composites by two-step light-activation (2002) Dental Materials, 18 (6), pp. 436-444. , DOI 10.1016/S0109-5641(01)00066-5, PII S0109564101000665 Asmussen, E., Peutzfeldt, A., Influence of pulsedelay curing on softening of polymer structures (2001) Journal of Dental Research, 80 (6), pp. 1570-1573 Luo, Y., Lo, E.C.M., Wei, S.H.Y., Tay, F.R., Comparison of pulse activation vs conventional light-curing on marginal adaptation of a compomer conditioned using a total-etch or a self-etch technique (2002) Dental Materials, 18 (1), pp. 36-48. , DOI 10.1016/S0109-5641(01)00018-5, PII S0109564101000185 Cunha, L.G., Alonso, R.C.B., Pfeifer, C.S.C., Correr-Sobrinho, L., Ferracane, J.L., Sinhoreti, M.A.C., Contraction stress and physical properties development of a resin-based composite irradiated using modulated curing methods at two C-factors levels (2008) Dental Materials, 24 (3), pp. 392-398 Alonso, R.C.B., Correr, G.M., Cunha, L.G., De Moraes Souto Pantoja, C.A., Puppin-Rontani, R.M., Sinhoreti, M.A.C., Modulated photoactivation methods - Effect on marginal and internal gap formation of restorations using different restorative composites (2007) Journal of Biomedical Materials Research - Part B Applied Biomaterials, 82 (2), pp. 346-351. , DOI 10.1002/jbm.b.30739 Ilie, N., Jelen, E., Hickel, R., Is the soft-start polymerization concept still relevant for modern curing units? (2009) Clinical Oral Investigations, 15 (1), pp. 21-29. , Epub ahead of print Pfeifer, C.S.C., Braga, R.R., Ferracane, J.L., Pulse-delay curing: Influence of initial irradiance and delay time on shrinkage stress and microhardness of restorative composites (2006) Operative Dentistry, 31 (5), pp. 610-615. , DOI 10.2341/05-118 Bouschlicher, M.R., Rueggeberg, F.A., Effect of ramped light intensity on polymerization force and conversion in a photoactivated composite (2000) Journal of Esthetic Dentistry, 12 (6), pp. 328-339 Sahafi, A., Peutzfeldt, A., Asmussen, E., Soft-start polymerization and marginal gap formation in vitro (2001) American Journal of Dentistry, 14 (3), pp. 145-149 Lopes, M.B., Costa, L.A., Consani, S., Gonini, A.J., Sinhoreti, M.A.C., SEM evaluation of marginal sealing on composite restorations using different photoactivation and composite insertion methods (2009) Indian Journal of Dental Research, 20 (4), pp. 394-399 Amaral, C.M., Peris, A.R., Ambrosano, G.M., Pimenta, L.A., Microleakage and gap formation of resin composite restorations polymerized with different techniques (2004) American Journal of Dentistry, 17 (3), pp. 156-160 Stansbury, J.W., Trujillo-Lemon, M., Lu, H., Ding, X., Lin, Y., Ge, J., Conversion-dependent shrinkage stress and strain in dental resins and composites (2005) Dental Materials, 21 (1), pp. 56-67. , DOI 10.1016/j.dental.2004.10.006, PII S0109564104001733 Fróes-Salgado, N.R., Pfeifer, C.S., Francci, C.E., Kawano, Y., Influence of photoactivation protocol and light guide distance on conversion and microleakage of composite restorations (2009) Operative Dentistry, 34 (4), pp. 408-414 Alonso, R.C.B., Correr, G.M., Cunha, L.G., Borges, A.F.S., Puppin-Rontani, R.M., Sinhoreti, M.A.C., Dye staining gap test: An alternative method for assessing marginal gap formation in composite restorations (2006) Acta Odontologica Scandinavica, 64 (3), pp. 141-145. , DOI 10.1080/00016350500474565, PII K8003205107545 Dietschi, D., Magne, P., Holz, J., An in vitro study of parameters related to marginal and internal seal of bonded restorations (1993) Quintessence International, 24 (4), pp. 281-291 Alani, A.H., Toh, C.G., Detection of microleakage around dental restorations: A review (1997) Operative Dentistry, 22 (4), pp. 173-185 Garberoglio, R., Brannstrom, M., Scanning electron microscopic investigation of human dentinal tubules (1976) Archives of Oral Biology, 21 (6), pp. 355-362 Correr, G.M., Bruschi Alonso, R.C., Puppin-Rontani, R.M., Correr-Sobrinho, L., Coelho Sinhoreti, M.A., Marginal and internal adaptation of composite restorations using a resin liner on deproteinized substrate (2005) Acta Odontologica Scandinavica, 63 (4), pp. 227-232. , DOI 10.1080/00016350510019955 Chiang, Y.C., Rösch, P., Dabanoglu, A., Lin, C.P., Hickel, R., Kunzelmann, K.H., Polymerization composite shrinkage evaluation with 3D deformation analysis from microCT images (2010) Dental Materials, 26 (4), pp. 223-231 Chiang, Y.C., Hickel, R., Lin, C.P., Kunzelmann, K.H., Shrinkage vector determination of dental composite by lCT images (2010) Composites Science and Technology, 70 (6), pp. 989-994 Peutzfeldt, A., Asmussen, E., Determinants of in vitro gap formation of resin composites (2004) Journal of Dentistry, 32 (2), pp. 109-115. , DOI 10.1016/j.jdent.2003.08.008 Reeves, G.W., Fitchie, J.G., Hembree Jr., J.H., Puckett, A.D., Microleakage of new dentin bonding systems using human and bovine teeth (1995) Operative Dentistry, 20 (6), pp. 230-235 Nakamichi, I., Iwaru, M., Fusayama, T., Bovine teeth as possible substitutes in the adhesion test (1983) Journal of Dental Research, 62 (10), pp. 1076-1081 Braga, R.R., Ferracane, J.L., Contraction stress related to degree of conversion and reaction kinetics (2002) Journal of Dental Research, 81 (2), pp. 114-118 Schilke, R., Lisson, J.A., Bauss, O., Geurtsen, W., Comparison of the number and diameter of dentinal tubules in human and bovine dentine by scanning electron microscopic investigation (2000) Archives of Oral Biology, 45 (5), pp. 355-361. , DOI 10.1016/S0003-9969(00)00006-6, PII S0003996900000066