Combinations of propolis and Ca(OH)2 in dental pulp capping treatment for the stimulation of reparative dentin formation in a rat model

F1000Res. 2020 Apr 29:9:308. doi: 10.12688/f1000research.22409.1. eCollection 2020.

Abstract

Background: Caries in the dental pulp result in inflammation and damage to the pulp tissue. During inflammation of the pulp, various inflammatory mediators and growth factors are released, including IL-8, IL-10, TLR-2, VEGF and TGF-β through the NF-kB pathway. In the present study, therapy for pulpal caries was performed through pulp capping by giving a combination of propolis and calcium hydroxide (Ca(OH)2). This treatment was expected to stimulate the formation of reparative dentin as an anti-inflammatory material to prevent pulp tissue damage. Methods: 28 Wistar rats were divided into four groups and treated with Ca(OH)2 with or without the addition of propolis for either 7 or 14 days. Immunohistochemical examination was used to determine the expression of IL-8, IL-10, TLR-2, VEGF, TGF-β in the four treatment groups. Results: The group treated with a combination of propolis and Ca(OH)2 for 7 days showed that the expression of IL-10, IL-8, TLR-2, VEGF, TGF-β increased significantly compared to the treatment group treated with only Ca(OH)2. The expression of IL-10, TLR-2, TGF-β, VEGF increased in the treatment group treated with propolis and Ca(OH)2 for 14 days, while the expression of IL-8 in the decreased significantly. Conclusions: Administration of a combination of propolis and Ca(OH)2 has efficacy in the pulp capping treatment process because it has anti-bacterial and immunomodulatory properties. The results show that it is able to stimulate the process of pulp tissue repair through increased expression of IL-10, TGF-β, VEGF, TLR -2 and decreased expression of IL-8.

Keywords: Ca (OH)2; IL-10; IL-8; Propolis; TGF-ß; VEGF dan TLR-2.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Calcium Hydroxide / therapeutic use*
  • Cytokines / metabolism
  • Dental Pulp Capping*
  • Dentin / growth & development*
  • Inflammation / therapy
  • Propolis / therapeutic use*
  • Rats
  • Rats, Wistar

Substances

  • Cytokines
  • Propolis
  • Calcium Hydroxide

Grants and funding

The present study received financial support from The Ministry of Research and Higher Education of the Republic of Indonesia under the PDUPT scheme (Grant No. 6/E/KPT/2019; Agreement Contract No. 4/E1/KP.PTNBH/2019).