Authors : Dr. Sumedh Lathi; Dr. Shubhangi Gaysmindar; Dr. Sadashiv Daokar; Dr. Madhuri Khatod; Dr. Apurva Mali; Dr. Kshama Sarak; Dr. Mohit Thakur

Volume/Issue : Volume 9 - 2024, Issue 11 - November

Google Scholar : https://tinyurl.com/59h9yvj3

Scribd : https://tinyurl.com/2fxbb62n

DOI : https://doi.org/10.5281/zenodo.14504452

Abstract : An intra-canal medicament (ICM) is a drug commonly used in endodontics to disinfect root canals between appointments. It helps eliminate residual bacteria after root canal preparation, reduces inflammation in the pulp and periapical tissues, neutralizes tissue debris, and makes canal contents inert. Additionally, it acts as a barrier alongside the temporary filling to prevent leakage and facilitates the drying of persistently wet canals. Therefore, the use of an ICM is essential for creating a microbe-free environment before root canal obturation, promoting optimal healing of the periapical tissues. Recently, nano-calcium hydroxide (NCH) has been introduced in endodontics, offering superior antibacterial properties compared to traditional calcium hydroxide powder. This is due to NCH's larger surface area-to-volume ratio and increased charge density, which enhance its interaction with the environment, resulting in greater antibacterial activity. To improve the effectiveness of ICMs, various vehicles such as aqueous, viscous, and oil-based formulations are used. Polyethylene glycol, an oil-based vehicle, has antibacterial properties due to its hydrophilic nature, which helps reduce bacterial counts. Chitosan, a viscous vehicle, possesses multiple biological properties, including antibacterial, hypercholesterolemic, wound healing, mucoadhesive, and sustained-release characteristics. Chlorhexidine, an aqueous vehicle, is known for its strong antibacterial properties. These vehicles may influence the physical and chemical properties of root dentin. Microhardness testing can be used to assess potential mineral loss or gain in dental hard tissues. The aim of this study is to investigate the effect of nano-calcium hydroxide combined with various vehicles on the microhardness of root dentin.

Keywords : Nanocalcium Hydroxide, Vehicles, Intracanal Medicament, Microhardness.

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