Utilização de adesivos dentinários como agente de vedamento cavitário em restaurações classe II de amálgama e resina composta posterior
Utilization of dentin adhesives as marginal sealers of amalgam and posterior composite class II restorations
Araújo, R.M.; Mello, J.B.; Huhtala, M.F.R.L.
Rev. odontol. UNESP, vol.22, n2, p.257-265, 1993
Resumo
Foi avaliada a capacidade de selamento marginal de 4 adesivos dentinários disponíveis no mercado: Scotchbond 2 (3M do Brasil); ARMD (Johnson & Johnson); Prisma Bond 3 (Dentsply) e XR Bond (Sybron-Kerr), quando utilizados em restaurações de amálgama (Dispersalloy - Johnson & Johnson), em restaurações de resina composta posterior (P50-3M; Adaptic IIP - J&J; APH - Dentsply e XR-Bond Sybron-Kerr) e em restaurações realizadas com a associação amálgama/resina composta posterior. Foram executadas 65 restaurações MOD em dentes humanos extraidos, sendo que as cavidades mesial e distal foram restauradas com diferentes combinações de material. Estes dentes foram submetidos à ciclagem térmica e analisados quanto à infiltração marginal de corante, nas interfaces dente/material restaurador e material restaurador/material restaurador (amálgama + resina composta posterior). Analisou-se a penetração linear do corante em cada espécime. Os resultados desse estudo mostraram que a utilização de adesivos dentinários diminuiu a infiltração marginal das restaurações classe II com amálgama, resina composta posterior ou amálgama + resina composta posterior. Também mostrou que o verniz odontológico em restaurações de amálgama possibilitou uma maior infiltração marginal cervical. dessas restaurações. Os testes demonstraram que não houve diferença estatisticamente significante entre os vários adesivos dentinários e entre as restaurações de amálgama e resina composta posterior.
Palavras-chave
Adesivo, resinas compostas, amálgama dentário
Abstract
This study evaluated the marginal sealing ability of four dentinal bonding agents: Scotchbond 2 (3M); ARMD (J&J); Prisma Bond 3 (Dentsply) and XR Bond (Sybron-Kerr), when used with amalgam (Dispersalloy - J&J), posterior composite (P-50- 3M; Adaptic IIP - J&J; APH - Dentsply), and between amalgam and posterior composite in cavities restored with both of them. Sixty-tive MOD cavities preparations were cut in extracted human teeth, so that mesial and distal cavities were restored with a different association: restorative material/dentinal bonding system. These teeth were thermally cycled and microleakage was assessed by dye penetration. Image analysis was used to determine the total amount of linear leakage for each specimen. Under the experimental conditions, the Use of the bonding systems improved the marginal seal of amalgam and posterior composite restorations. Less microleakage was observed in dentinal adhesive-lined amalgam restorations than in vamish-lined restorations. The tests procedures resulted in dif[erences not statistica11y significant between the various dentinal bonding systems and between amalgam and posterior composite restorations.
Keywords
Adhesives, composite resins, dental amalgam
References
1. ARAUJO, R. M. Estudo da infiltração marginal em restaurações de resinas compostas para dentes posteriores. Efeito do material, preparo cavitário e condicionamento do esmalte ao IÚvel cervical. Rev. OdontoI. UNESP, V. 19, p. 191-201, 1990.
2. BEN-AMAR, A. Reduction of microleakage around new amalgam restoration. J. Am. Dent. Assoe., V. 119, p. 725-8, 1989.
3. BEN-AMAR, A. et alo The control of marginal mieroleakage in amalgam restorations using a dentin aclhesive: a pilot study. Dent. Mater.; V. 3, p. 94-6, 1987.
4. . The effect of new sealants around class V amalgam restorations. J. Dent. Res.• V. 69, p. 1036, 1990.
5. . Long-term use of dentine aclhesive as an interfacial sealer under class II amalgam restorations. J. Oral Rehabil., V. 17, p. 37, 1990.
6. BEN-AMAR, A H. Marginal mieroleakage: the effect ofthe number of cavity-varnish layers and the type of amalgam used. Dent. Mater.. V. 2, p. 45-7,1986.
7. BRANNSTROM. M. Infection beneath composite resin restorative: can it be avoided? Operat. Dent., V. 12, p. 159-63, 1987.
8. COOLEY, R. et alo Dentinal bond strengths and microleakage of a 4-Meta adhesive to amalgam and eomposite resino Ouintessenee Int.. V. 22, p. 979-83, 1991.
9. EIDELMAN, E. et alo An evaluation of marginalleakage of classe 2 eombined amalgamcomposite restorations. Operat. Dent., V. 15, p. 141-8, 1990.
10. JODAIKIN, A Experimental microleakage around ageing dental amalgam restorations: a review. J. Oral Rehabil., v. 8, p. 517, 1981.
11. JOHNSON, G. H. et alo Dentin bonding systems: a review of current products and techniques. J. Am. Dent. Assoe., V. 122, p. 34-41,1991.
12. JONES, J. G., YOUNGSON, C. C. Marginal leakage associated with three posterior restorative materials. J. Dent., V. 16, p. 130-134, 1988.
13. LACY, M. A, STANINEC. M. A The bonded amalgam restoration. Ouintessence lnt.. V. 20. p. 521-4, 1989.
14. LEINFELDER, K. F. Posterior eomposite resins. J. Am. Dent. Assoe., V. 117, p. E-21, 1988.
15. LEINFELDER, K. F. et alo Efficacy of the dentin bonding agents: their effectives in reducing mieroleakage. J. Ala. Dent. Assoe.. V. 70, p. 13-20, 1986.
16. LUTZ, F. et alo Optimizing the marginal adaptation of MOD composite restoration. ln: INTERNATIONAL SYMPOSIUM ON POSTERIOR COMPOSITE RESIN DENTAL RESTORATIVE MATERIALS. 1985, Saint Paul. St. Paul: 3M. 1985. p. 405-19.
17. MASAKA, N. Restoring the severely eompromised molar through adhesive bonding of amalgam to dentin. Compendium, V. 12, p. 90-8, 1991.
18. MAZER, R. B. et alo Effectiveness of eavity-varnish in preventing mieroleakage in amalgam restorations. J. Dent. Res., V. 66, p. 289,1987, abstr. 1457.
19. PRAT!, C. et alo Shear bond strength and microleakage af dentin bonding systems. J. Prosthet. Dent., V. 65, p. 401-7,1991.
20. SIDHU, S. K. Effect of dentin age on effectiveness of dentin bonding agents. Operat. Dent., V. 16. p. 218-22, 1991.
21. SHIMIZU, A et alo Bond strength between amalgam and tooth hard tissues with applieation of fluoride glass-ionomer eement, and adhesive resin cement in various eombinations. Dent. Mater J., V. 5, p. 225-32, 1986.
22. SILVA, M. et alo Base-varnish interactions around amalgam restorations: spectrophotometric and microscopic assessment ofleakage. Aust. Dent. J., V. 30, p. 89-95, 1985.
23. STANINEC. M., HOLT, M. Bonding of amalgam to tooth structure : tensile adhesion and mieroleakage tests. J. Dent., V. 59, p. 397-402, 1988.
24. ULUKAP1, L K. et alo Comparison of the sealing ability of four cavity varnishes: an in vitro study. Dent. Mater., V. 7, p. 84-7,1991.
25. VARGA, J. et alo Bonding of amalgam to tooth cavity with adhesive resino Dent. Mater. J., V. 5, p. 158-64, 1986.
26. YOUNGSON, C. C. et alo ln vitro marginal microleakage associated with tive dentine bonding systems and associated composite restorations. J. Dent., V. 18, p. 203, 1990.
27. YU, X. Y. et alo Experimental use of a bonding agent to reduce marginal microleakage in amalgam restorations. Quintesseneelnt., V. 18. p. 783-6,1987.
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