Calcium hydroxide is normally used as a slurry of calcium hydroxide in a water base. Definition calcium hydroxide is a strong alkali, which can be formed by the reaction of calcium oxide. Pdf calcium hydroxide has been used in dentistry for almost a century. Calcium hydroxide cement placement columbia university.
The points ensure that caoh2 is applied right down to the apex. Calcium nitrate, also called norgessalpeter norwegian saltpeter, is an inorganic compound with the formula ca no 3 2. Calcium nitrate appears as white to light gray granular solid. Calcium hydroxide in dentistry free download as powerpoint presentation. Calcium hydroxide preparations are used extensively in restorative dentistry as a therapeutic cavity liner, as an interim root canal dressing to induce hard tissue. A catalyst paste containing calcium hydroxide, zinc oxide, and zinc stearate in ethylene toluene sulfonamide reacts with a base paste containing calcium tungstate, calcium phosphate, and zinc oxide in glycol salicylate to form an amorphous calcium disalicylate. Often packaged as a paste, these materials are available in variety of viscosities for use during different clinical situation. This study discusses, based on scientific evidences, its main functions, with special attention to maintain endodontic biological principles. However, more studies evaluating the factors influencing success and failure in teeth should be conducted. Dummer2 1department of endodontics, hamedan university of medical sciences, hamedan, iran.
Calcium hydroxide has been used by dentists in the clinical practice for over a century 1. Calcium hydroxide, pulp capping, apexifacation, pulpotomy. Calcium nitrate is inorganic nitrate salt of calcium. One of the aims of operative dentistry is to preserve the pulp vitality in compromised. Multical is a nonsetting, premixed paste easily removed from root canals with file and irrigation. Calcium hydroxide has been included within several materials and antimicrobial formulations that are used. Calcium hydroxide caoh2 has been widely used in endodontics as an intracanal medicament to eliminate the remaining microorganisms.
It is a powder, that can be mixed with a physiological saline to a paste. Some of its indications include direct and indirect pulp capping, apexogenesis, apexification, treatment of. It is an inorganic nitrate salt and a calcium salt. Calcium hydroxide endodontics henry schein australian. Roberto holland chairman and professor of endodontics, faculty of dentistry of aracatuba, unesp, aracatuba, sp, brazil. Dec 20, 2012 calcium hydroxide cannot be categorized as a conventional antiseptic,but it kill bacteria in root canal space. Merits and demerits of calcium hydroxide as a therapeutic. Role of calcium hydroxide in dentistry calcium hydroxide preparations are used extensively in restorative dentistry as a therapeutic cavity liner, as an interim root canal dressing to induce hard tissue formation in various endodontic situations. Properties and applications of calcium hydroxide in. Find patient medical information for calcium hydroxide bulk on webmd including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Calcium sulfide is generally immediately available in most volumes.
School of dentistry, cardiff university, cardiff, uk abstract mohammadi z, dummer pmh. Effect of calcium hydroxide application time on dentin q. Mta or calcium hydroxide treatment for immature permanent teeth. The closure of apex may be partial or complete but consistently has minute communications with the periapical tissue. Effect of calcium hydroxide on the fracture resistance of dentin. Calcium hydroxide cements are supplied in a visible lightcured system figure 201, a and a twopaste system figure 201, b. Clinical application of calcium hydroxide in dental pathology and endodontics. Intermediate restorative materials are materials that are placed between a restoration and the dentine with a primary function of protecting the pulp. Calcium hydroxide plus points are an excellent alternative to calcium hydroxide pastes. A catalyst paste containing calcium hydroxide, zinc oxide, and zinc stearate in ethylene toluene sulfonamide reacts with a base paste containing calcium tungstate, calcium phosphate, and zinc oxide in glycol salicylate to form an amorphous calcium. Apr 12, 2018 calcium hydroxide is a compound with many uses, from making cement to adding crunchiness to pickles. They have a rapid initial set in the cavity under the accelerating effect of moisture.
Since the introduction to dentistry of calcium hydroxide by hermann 1920. Calcium hydroxide has been used in dentistry for almost a century,24 it was originally introduced to the field of endodontics by hermann in 1920 as a. Calcium hydroxide is used extensively as an intracanal medicament in endodontics for many years. Effect of calcium hydroxide on the fracture resistance of. A dental liner is a material that is usually placed in a thin layer over exposed dentine within a cavity preparation. Seven days after application of calcium hydroxide, the dentin nearest the cavity still showed a ph range of 11. Their perceived advantages, in addition to their therapeutic effects are as follows. A wide variety of dental calcium hydroxide options are available to you, such as metal. Introduction since the introduction to dentistry of calcium hydroxide by hermann 1920, 1930, this medicament has been indicated to promote healing in many clinical situations. Dentin covered by calcium hydroxide showed a ph range of 11. In many in vitro studies, it has been reported that use of calcium hydroxide dressing for 5 weeks or more, causes a decrease in root fracture resistance.
It is mainly used as a component in fertilizers but has other applications. Considering the importance of calcium hydroxide in dentistry, a big landmark was hermans 38 pioneer studies. When calcium hydroxide powder is mixed with a suitable vehicle, water being the easiest2, an alkaline paste with a high ph is formed. Indian dental academyindian dental academy leader in continuing dental educationleader in continuing dental education seminar on calciumhydroxide conservative dentistry and endodontics. Calcium hydroxide cements are supplied in a visible lightcured system fig. Review properties and applications of calcium hydroxide in endodontics and dental traumatology z. May be either the anhydrous compound or the tetrahydrate. Oct 01, 2005 calcium hydroxide is a multipurpose agent, and there have been an increasing number of indications for its use. Well go over all the ways that calcium hydroxide is. Clinical application of calcium hydroxide in dental pathology. International endodontic journal, 44, 697730, 2011.
Mixing calcium hydroxide cement armamentarium gauze cotton rolls and small cotton pellets calcium hydroxide mixing pad calcium hydroxide applicator smallest spoon excavator explorer and cotton pliers step 1. Endodontic calcium hydroxide materials are used to clean and protect canals during endodontic treatment or as a preventive measure for complex cases or following a failed root canal. Indirect pulp capping indirect pulp treatment is a procedure performed in a tooth with a deep carious lesion approximating the pulp but without signs or symptoms of pulp degeneration. Calcium hydroxide is known to have a strong antimicrobial effect and is a boneregeneration stimulant. Antimicrobial effect of calcium hydroxide as an intracanal. Ultra high purity and high purity compositions improve both optical quality and usefulness as scientific standards. Chemistry physics science and technology, general calcium hydroxide chemical properties identification and classification dentin mechanical properties testing dynamic testing materials methods fracture materials. Bactericidal, bacteriostatic, ph 12, radiopaque, nonsetting.
Nonsurgical treatment of two periapical lesions with calcium. Although this material exhibits several advantages, it also has some limitations. Its mechanism of actions are achieved through the ionic dissociation. Aug 23, 20 however, it has been suggested that longterm use of calcium hydroxide may have an adverse effect on physical property of dentin, making it more susceptible to root fracture. The commodity forms of calcium hydroxide are often referred to as hydrated lime, a common mineral used in large tonnage across applications ranging from waste treatment to chemical manufacturing to human and animal nutrition. Calcium hydroxide has been used in dentistry since several decades. Tooth preparation and dispensing calcium hydroxide consists of two pastes. Although it is difficult to conclude that such in vitro results directly reflect clinical situations, routine use of longterm calcium hydroxide dressing should be avoided if possible. There are 180 suppliers who sells dental calcium hydroxide on, mainly located in asia. Dec 25, 2004 calcium hydroxide was originally introduced to the field of endodontics by herman 1 in 1930 as a pulpcapping agent, but its uses today are widespread in endodontic therapy. Clinical application of calcium hydroxide in dental pathology and. Nanoscale elemental powders and suspensions, as alternative high surface area forms, may be considered. Roeko calcium hydroxide plus points upgrade dentistry.
Calcium hydroxide cement authorstream presentation. The top countries of suppliers are india, china, and pakistan, from which the percentage of dental calcium hydroxide supply is %, 49%, and 30% respectively. Jan 05, 2016 calcium hydroxide endodontic courses 1. Calcium hydroxide is a low strength base that can be used as a liner, intermediary base or pulpcapping agent. Calcium hydroxide can be used effectively as intracanal medicament, root canal sealer, in weeping canals, for perforation management and root. Calcium hydroxide has been used in dentistry for almost a century. Properties and applications of calcium hydroxide in endodontics and dental traumatology. It also has a function for direct or indirect pulp capping see chapter 9, but will only be discussed in this chapter as a dental liner.
Pathology free download as powerpoint presentation. Calcium hydroxide necrotic tissue vital inflamed tissue uses. Well go over all the ways that calcium hydroxide is used in food, including. Estudo baseado em evidencias cientificas carlos estrela chairman and professor of endodontics, federal university of goias, goiania, go, brazil. Mar 22, 2012 calcium hydroxide and mta may be suitable materials for the treatment of the immature teeth. Calcium hydroxide has a hard tissue inducing effect. Calcium hydroxide is a white odourless powder with the chemical formula caoh 2.
An overview raidan bahattab1, manar aljamie1, haya aldreib1, lujain alessa1, mohammad alonazi2 1college of dentistry, princess nourah bint abdulrahman university, riyadh, kingdom of saudi arabia 2security forces clinics, riyadh, kingdom of saudi arabia abstract. Calcium hydroxide paste with iodoform in a silicone oil base. If the oxide is treated with only sufficient water to make it crumble to a fine, white, dry powder slaked lime is produced. Dental liners, bases and cavity varnishes are used for this purpose. It is used in various clinical situations such as to promote apexification, to repair perforation, to enhance healing of periapical lesions, to control root resorption, and to control exudation in teeth with persistent periapical inflammation. Releases and recharges calcium, phosphate and fluoride. A powerpoint presentation about necrosis and its types. Report by journal of research of the national institute of standards and technology. In dentistry, it is used as dressing in paste form used for antimicrobial effect during a dental root canal procedure. Calcium hydroxide an overview sciencedirect topics.
What is the role of calcium hydroxide in dentistry. Role of calcium hydroxide in endodontics global journal of. Calcium hydroxide is a compound with many uses, from making cement to adding crunchiness to pickles. Effect of calcium hydroxide application time on dentin. Properties and applications of calcium hydroxide in endodontics and. In operative dentistry as a liner the calcium hydroxide pastes are now in general use as lining materials. This colourless salt absorbs moisture from the air and is commonly found as a tetrahydrate. Hydrated lime typically contains many naturally occurring vagrant metal high purity calcium hydroxide. Merits and demerits of calcium hydroxide as a therapeutic agent. In 1920, herman introduced calcium hydroxide to dentistry as a pulpcapping material but today it is used widely in the field of endodontics 2 3. Before the discussion of essential topics its important to analyze calcium hydroxide indications in endodontics. Calcium hydroxide is used a cavity liner, cement base, root canal filling material, direct and indirect pulp capping material in restorative dentistry. The value of calcium hydroxide in endodontic treatment of necrotic infected teeth is now well documented. It has been used in a number of applications in the field of endodontics such as root resorption, intracanal medicament, and root canal sealers.
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