Use of calcium hydroxide paste associate with 2% chlorhexidine gel and zinc oxide as dressing: case report

Sérgio Henrique Staut Brunini, Débora Cristina Gottert, Caroline da Rocha Coldebella

Introduction: Intracanal dressings should be used because shaping and cleaning alone do not eliminate microorganisms adhered to the canal walls. In specific cases, treatment may have to be conducted over several visits, which may have an adverse effect because success depends on patient’s cooperation to return to the office several times. Thus, medication combinations are important, as they remain in the root canal for long periods of time. The activity of each substance is then preserved, which can be achieved by combining calcium hydroxide, 2% chlorhexidine gel and zinc oxide. Case report: Removal of root canal filling material from tooth #11 was carried out using Gates-Glidden burs and K-files combined with gutta-percha solvent. After that, intracanal dressing containing calcium hydroxide was applied and left in place for 20 days, with no symptom remission. A paste composed of calcium hydroxide, 2% chlorhexidine gel and zinc oxide at a 2:1:2 ratio was then applied, kept in the canal for five months and not renewed before lesion regression was confirmed radiographically. Conclusion: The combination of calcium hydroxide, 2% chlorhexidine gel and zinc oxide effectively controlled infection without renewal of intracanal dressing.

Keywords: Root canal treatment. Periapical abscess. Calcium hydroxide. Chlorhexidine.

How to cite: Brunini SHS, Gottert DC, Coldebella CR. Use of calcium hydroxide paste associate with 2% chlorhexidine gel and zinc oxide as dressing: case report. Dental Press Endod. 2017 Sept-Dec;7(3):70-7. DOI: https://doi.org/10.14436/2358-2545.7.3.070-077.oar

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