In the presented work CaCO3 powders were produced by controlled fast precipitation through gaseous carbon dioxide absorption in calcium hydroxide slurry. This multiphase reaction was conducted in a modified prototypical rotating disk reactor (RDR). The concept is based on continuous formation of thin liquid films at a surface of rotating discs where the mass transfer proceeds in diffusion-conve...

objective: evaluation of the effect of propolis as a bioactive material on quality of dentin and presence of dental pulp stem cells. materials and methods: for conducting this experimental split-mouth study,a total of 48 maxillary and mandibular incisors of male guinea pigs were randomly divided into an experimental propolis group and a control calcium hydroxide group. cutting the crowns and us...

We are writing to draw attention to an inconsistency in the amount of water in the packages of both white and grey MTA which are commercially available as ProRoot MTA Original (Dentsply International Inc., Johnson City, TN, USA) and ProRoot MTA (Dentsply International Inc.). In each package, there are five sachets (pouches) containing 1 g of ProRoot MTA powder and six ampoules of water. The man...

premixed non-setting calcium hydroxide (caoh 2 ) paste in pressure syringe system is commonly used in root canal therapy. the aim of this paper is to present a case involving an iatrogenic extrusion of the medicament during endodontic treatment and a literature review of similar reports. the present case demonstrates severe tissue necrosis and other deleterious effects following the extrusion o...

invasive cervical resorption is a condition that affects the root surface area below the epithelial attachment. multiple treatment modalities are advocated, involving exposure of the invasive defect, removal of the granulation tissue and sealing with various restorative materials. this report demonstrates conservative treatment of a patient presenting with peri-apical periodontitis in upper rig...

introduction: leakage of the root canal system is an importent consideration when placing an intracanal medicament. the aim of this in vitro study was to compare the effect of calcium hydroxide and 1% chlorhexidine gel as intracanal medicaments on tooth apical seal. materials and methods: seventy extracted, single-rooted maxillary anterior teeth were divided into the three experimental groups (...

The efficacy of an oily calcium hydroxide suspension (Osteoinductal) as an adjunct to periodontal regenerative therapy has been demonstrated in recent clinical and histological studies. However, little is known about the molecular mechanisms in vitro, particularly, about the effect of oily calcium hydroxide paste on periodontal ligament (PDL) cells. Therefore the aim of the present study was to...

The objective of this in vitro study was to evaluate a possible remineralization of human carious dentin by calcium hydroxide. Thirty-nine freshly extracted human permanent and deciduous carious teeth were split into two halves. One half was used as control and the other as experimental. In the latter, a cavity was prepared and the remaining bottom layer of demineralized dentin capped with chem...

AIM The aim of this study was to evaluate the diffusion ability of ions through dentinal tubules of different nonalcoholic calcium hydroxide-containing herbal pastes and compare it with the calcium hydroxide paste prepared with saline. MATERIALS AND METHODS A total of 36 single-rooted premolar teeth were used in this study. The tooth crowns were removed and the root canals were prepared. Depe...