COMPARISON OF FREQUENCY OF POST OPERATIVE SENSITIVITY IN AMALGAM RESTORATIONS USING COPAL VARNISH AND DENTIN ADHESIVE LINER
AbstractBackground: Micro leakage around the margins of a restoration is believed to be one of the main causes of postoperative sensitivity. Dental amalgam is a non-insulating material and has the potential to transfer heat and cold causing irritation of the pulp. Different dentin tubule sealers are used under amalgam restoration to compensate for this post-operative sensitivity. This study was conducted to compare the frequency of sensitivity in amalgam restorations using copal varnish and dentin adhesive liner (dentin bonding agent). Methods: A total of 60 patients of either gender, aged 18–40 years having class 1 carries in posterior teeth were included. Teeth with restorations, dentinal sensitivity and patients taking analgesic drugs for chronic pain conditions were excluded. The selected patients were placed randomly into Group A (copal varnish) & Group B (dentin adhesive liner), by using computer generated table of random numbers. Restored teeth were evaluated 1-month post operatively for sensitivity. Results: Mean age was 25.63±5.42 years. Out of 60 patients, 68.0% were females and 32.0% were males with a female to male ratio of 2:1. The mean post-operative pain score was 2.83±2.79 in Group A and in Group B, it was 1.43±2.14 with a p-value of 0.03. There was no pain on application of a cold stimulus in 14 (46.7%) patients in Group A (copal varnish) while in Group B (Dentin adhesive), no pain was seen in 23 (76.7%) patients with p-value of 0.02. Conclusion: This study concluded that dentin adhesive liner (dentin bonding agent) is better than copal varnish in reducing postoperative sensitivity in amalgam restorations. Keywords: dental caries; amalgam; microleakage; dentin adhesive liner; copal varnish; postoperative sensitivity
Saffarpour A, Saffarpour A, Kharazifard MJ, Golmohamadi N. Effect of a Desensitizing Varnish on Microleakage of Two Self-Etch Adhesives. J Dent (Tehran) 2015;12:807–14.
Gupta M, Pandit IK, Srivastava N, Gugnani N. Comparative evaluation of 2% sodium fluoride iontophoresis and other cavity liners beneath silver amalgam restorations. J Indian Soc Pedod Prev Dent 2010;28(2):68–72.
Al-Omar QD, Al-Omari WM, Omar R. Factors associated with postoperative sensitivity of amalgam restorations. J Ir Dent Assoc. 2009;55(2):87–91.
Pashley DH, O'Meara JA, Williams EC, Kepler EE. Dentin permeability: effects of cavity varnishes and bases. J Prosthet Dent 1985;53(4):511–6.
Baratieri LN, Machado A, Van Noort R, Ritter AV, Baratieri NM. Effect of Pulp Protection Technique on the Clinical Performance of Amalgam Restorations: Three-Year Results. Oper Dent 2002;27:319–24.
Meiers JC, Turner EW. Microleakage of dentin/amalgam alloy bonding agents: Results after 1 year. Oper Dent 1998;23(1):30–5.
Hajizadeh H, Akbari M, Ghavamnasiri M, Abedini S. Clinical Evaluation of a resin based desensitizing agent and self-etching adhesive on reduction of post-operative sensitivity of amalgam restorations. J Contemp Dent Pract 2008;9(7):9–16.
Jodaikin A. Experimental microleakage around aging dental amalgam restorations: a review. J Oral Rehabil 1981;8(6):517–26.
Schwartz RS, Conn LJ Jr, Haveman CW. Clinical evaluation of two fluoridated desensitizing agents for use under class 5 silver amalgam restorations. J Prosthet Dent 1998;80(3):269–73.
Browning WD, Jhonson WW, GregoryPN. Reduction of post-operative pain: A double blind randomized clinical trial. J Am Dent Assoc 1997;128(1):1661–7.
Gordan VV, Mjör IA, Hucke RD, Smith GE. Effect of different liner treatments on postoperative sensitivity of amalgam restorations. Quintessence Int 1999;30(1):55–9.
Cenci MS, Piva E, Potrich F, Formolo E, Demarco FF, Powers JM. Microleakage in bonded amalgam restorations using different adhesive materials. Braz Dent J 2004;15(1):13–28.
Tarim B, Suzuki S, Suzuki S, Cox CF. Marginal integrity of bonded amalgam restorations. Am J Dent 1996;9(2):72–6.
da Silva AF, Piva E, Demarco FF, Correr Sobrinho L, Osinga PW. Microlekage in conventional and bonded amalgam restorations: influence of cavity volume. Oper Dent 2006;31(3):377–83.
Ben-Amar A, Liberman R, Judes H, Nordenberg D. Long term use of dentine adhesive as an interfacial sealer under class II amalgamrestorations. J Oral Rehab 1990;17(1):37–42.
Charlton DG, Moore BK, Swartz ML. In vitro evaluation of the use of resin liners to reduce microleakage and improve retention of amalgam restorations. Oper Dent 1992;17(3):112–9.