Effect of Calcium Hydroxide Based Intracanal Medicaments on the Apical Sealing Ability of Resin Based Sealer and Guttapercha Obturated Root Canals

Abstract

INTRODUCTIONCalcium Hydroxide was introduced in endodontics as a direct pulpcapping agent and is highly recommended and widely accepted as an inter-appointment intracanal endodontic dressing. It demonstrates a pronounced antibacterial activity against most of the bacterial species identified in endodontic infections. It can be mixed with a variety of vehicles such as distilled water, saline solution, propylene glycol and glycerine. Most of the substances used as vehicles do not have significant antimicrobial activity. However, due to the relative inefficiency of CH in the elimination of both facultative anaerobes and yeasts, it has been combined with other medicaments such as 2% CHX gel, Iodoform, Camphorated Paramonochlorophenol (CPMC), to obtain a wide spectrum antimicrobial action [1].The merits of CH have also been disputed, not only concerning its efficacy as an antimicrobial agent, but also because of possible apical leakage of the obturated canal system after its use [2]. Incomplete removal of CH medicaments from root canal surface, prevents the sealer from penetrating into the dentinal tubules, interferes with the normal setting reaction resulting in potential reduction of sealer adaptation, thus, affecting the seal of obturating material leading to microleakage and subsequent treatment failure [3]. Hence, while placing an intracanal medicament it is important to consider its effect on leakage of the root canal system [4].The purpose of this study was to evaluate the effect of three CH based intracanal medicaments on the apical sealing ability of AH Plus-guttapercha obturation. The medicaments used in the study were freshly prepared paste of CH mixed with normal saline, freshly prepared paste of CH mixed with 2% CHX solution and a commercially available paste of CH and iodoform in silicone oil-Vitapex. Hypothesis tested was that CH based intracanal medicaments would adversely affect the apical sealing ability of AH Plus guttapercha obturated root canals. MATERIALS AND METHODSThis in vitro study was carried out in the Department of Conservative Dentistry and Endodontics, Mahatma Gandhi Mission's Dental College and Hospital, Navi Mumbai, Maharashtra, India. Hundred permanent single rooted, non-carious human teeth with intact apices and curvature less than 10 degrees extracted for periodontal or orthodontic reasons were selected for the study. Teeth with immature root apices, cracks, root caries, curvatures, fracture and resorption defects were excluded. Samples were disinfected in 5% sodium hypochlorite (PDP, India) solution for one hour and stored in 0.9% normal saline (Althea Pharma Pvt. Ltd. India) in air tight containers until use. Specimen Preparation:To ensure that all specimens were the same length they were resected 15 mm from the apex using a diamond disc with water coolant. The length was standardized Keywords: AH Plus, Chlorhexidine, Saline, Vitapex ABSTRACT Introduction: Calcium Hydroxide (CH) is one of the most commonly used intracanal medicaments which can be used with various vehicles.

Farklı irrigasyon tekniklerinin kalsiyum hidroksit uzaklaştırma etkinliğinin Bilgisayarlı Sıvı Filtrasyon methodu kullanılarak mikrosızıntılarının değerlendirilmesi

“…The findings of this study were consistent with the findings of previous studies. 30,31 There was no statistically significant difference between the types of CH in terms of leakage. In line with our findings, Donnermeyer previously reported that none of the tested methods, including PUI, Endoactivator, XP-endo Finisher, and CI, could completely remove the two types of CH from internal resorption cavities, and different forms of CH were comparable in terms of removal.…”

Tomada de decisão de estudantes frente a um case scenario de Endodontia

“…Em casos de necrose pulpar, especialmente na presença de lesões perirradiculares, a obturação do canal deve ser realizada em uma segunda sessão, após a permanência de medicação intracanal por um período variável de três a sete dias [11][12][13][14][15][16][17][18][19] .…”

Effect of Different Intracanal Medicaments on Apical Sealing Ability of BioRoot RCS

“…So it will not contact the root canal walls and can be easily removed from the canal wall. 24 Leakage in Metrogyl DG gel medicated group can be explained due to the substantivity effect of chlorhexidine. This is in accordance with other studies.…”

“…This is in accordance with other studies. 6,10,24 Chlorhexidine gluconate is a broad-spectrum antibacterial agent. It acts by getting adsorbed onto the cell wall of the microorganism and causing leakage of intracellular components.…”