Main Article Content
Purpose: Assessment of marginal micro-leakage and marginal accuracy of non-eugenol temporary luting cements by the use of provisional crowns on prepared teeth.
Materials and Methods: 60 extracted mandibular molars of similar crown height were mounted in auto-polymerizing resin blocks. Tooth preparation to receive metal ceramic crown with shoulder finish line was done. The provisional crowns were fabricated using pre-operative putty index and were evaluated for marginal accuracy. Samples were divided into three groups with 20 samples in each. The crowns were cemented using Tempbond(Kerr U.K), RelyXTempNE (3M ESPE AG) and Freegenol (GC). Thermocycling was done for 250 times (5-60℃ temp.) with an interval of 10 s between two immersions. They were then immersed in 5% basic fuschin dye and sectioned. The marginal micro-leakage was assessed by observing the sectioned samples in between bucco-lingual and mesiodistal direction. Marginal accuracy was evaluated with stereomicroscope.
Results: Marginal microleakage and accuracy was highly significant with all the three cements and occurred between the tooth surface and the cement layer and not between the cement layer and the restoration.
Conclusion: Minimum marginal microleakage was obtained by RelyXTempNE and the highest marginal microleakage was founds in tempbond and Freegenol showed intermediate values.
Burns D R, Beck DA, & Nelson S K. Review of selected dental literature on contemporary provisional fixed prosthodontics treatment: Report of the committee on research in fixed prosthodontics of academy of fixed prosthodontics. J Prosthet Dent 2000;90(5):474-97.
Paolo Baldissara, Giordano Comin, Filippo Martone. Comparative study of the marginal microleakage of six cements in fixed provisional crowns.(J Prosthet Dent 1998;80:417-22.)
Abo-Hamar SE, Hiller KA, Jung H, Federlin M, Friedl KH, Schmalz G. Bond strength of a new universal self-adhesive resin luting cement to dentin and enamel. Clinical oral investigations. 2005 Sep;9(3):161-7.
Rosenstiel SF, Gegauff AG. Effect of provisional cementing agents on provisional resins. The Journal of Prosthetic Dentistry. 1988 Jan 1;59(1):29-33.
Lewinstein I, Fuhrer N, Ganor Y. (2003) comparative in vitro evaluation of two provisional restorative material. J Prosthet Dent. 89(1):70-5.
Lewinstein I, Chweidan H, Matalon S, Pilo R. (2007) Retention and marginal leakage of provisional crowns cemented with provisional cements enriched with chlorhexidine diacetate. J Prosthet Dent. 98(5):373-8.
Farah R, Elzeky M. An in vitro comparison of marginal microleakage of four groups of temporary cements in provisional crowns. Int J Adv Res. 2015; 3:778-87.
Crisp S, Lewis BG, Wilson AD. Zinc polycarboxylate cements: a chemical study of erosion and its relationship to molecular structure. Journal of Dental Research. 1976 Mar;55(2):299-308.
Holmes JR, Bayne SC, Holland GA, Sulik WD. Considerations in measurement of marginal fit. The Journal of prosthetic dentistry. 1989 Oct 1;62(4):405-8.
Young HM, Smith CT, Morton D. Evaluation of the marginal microleakage of CAD-CAM compared with conventional interim crowns luted with different types of cement. J Prosthet Dent 2017; 85:129‑32.
Ogawa T, Aizawa S, Tanaka M, Matsuya S, Hasegawa A, Koyano K. the temporary cementing agents exhibited different sealing abilities.J Prosthet Dent 2018;82:658‑61.
Crispin BJ, Watson JF, Caputo AA. The marginal accuracy of treatment restorations: A comparative analysis. J Prosthet Dent 1980; 44:283‑90.
Barghi N, Simmons EW Jr. The marginal integrity of the temporary acrylic resin crown. J Prosthet Dent 1976; 36:274‑7.
Robinson FB, Hovijitra S. Marginal fit of direct temporary crowns. J Prosthet Dent 1982; 47:390‑2.
Ellakwa A, Cho N, Lee IB. The effect of resin matrix composition on the polymerization shrinkage and rheological properties of experimental dental composites. Dent Mater 2007; 23:1229‑35.
Zmener O, Banegas G, Pameijer CH. Marginal accuracy of interim restorations fabricated from four interim autopolymerizing resins. J Endod. 2013:30(8):582-4.
Koumjian JH, Holmes JB. Marginal accuracy of provisional restorative materials.J Prosthet Dent 2015;63:639‑42.
Holmes JR, Bayne SC, Holland GA, Sulik WD. Considerations in measurement of marginal fit. J Prosthet Dent 2015; 62:405‑8.
Sheen Juneja Arora, Aman Arora, Viram Upadhyaya, Shilpi Jain. Comparative evaluation of marginal leakage of provisional crowns cemented with different temporary luting cements: In vitro study. The Journal of Indian Prosthodontic Society Mar 2003:16 :1