Aug 21, 20 the video can be easily paused during presentation to engage in reflection on and discussion of previously presented information. The transition from amalgam to other restorative materials. This fiveyear prospective clinical trial evaluated amalgam restorations with localized defects that were treated by means of repair or. While for posterior, it is less visible, usually, the class v amalgam fillings at the buccal surface of mandibular premolar and molar are not visible. Manual condensation using ward condensers from 1 to 6. Although a high number of patients were lost to followup, the results show that repair of defective amalgam restorations is a good alternative to replacement. Survival and reasons for failure of amalgam versus. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
Effects of cement bases on the stresses in amalgam restorations j. Amalgam is a restorative material especially suitable for classes i and ii restorations in teeth that encounter heavy chewing forces. Pdf management of class i and class ii amalgam restorations. Amalgam restorations and future perspectives longdom. Farhad hadavi, dmd, ms 1 steps in carving amalgam class 2 cavity 20042005 word to the wise. Dental amalgam, which contains 50% mercury, is a restoration material that has been in use to restore dental cavities for over 150 years and has the longest life expectancy among all direct restorative materials. Class iii, iv, and v direct composite and glass ionomer. Steps in carving amalgam class 2 cavity 20042005 word to the wise. The advantages of amalgam restorations include resistance to wear, tolerance to a wide range of clinical placement conditions, and. The discoid end is shaped like a disk round and is sharp around the entire periphery. Amalgam longevity is an important issue for patients, governments, and dentists to define the cost of dental treatment. Operative dentistry mcqs university of health sciences. Determination of cavity borders outlines and extention for prevention.
Haya alwaalan najla alkhuzaim ghaida almashaan maha alhamdan 2. Feb 15, 2018 hi guys, i am sharing bds lecture notes on amalgam restoration in pdf format. This chapter presents information about class iii, iv, and v direct composite restorations. Class ii amalgam cavity preparation and restoration youtube. Management of class i and class ii amalgam restorations. Pdf operative dentistry principles of cavity preparation. Certain surfaces of the teeth are particularly susceptible to carious lesions. Pdf replacement of dental restorations has been the traditional treatment for defective restorations. Amalgam restoration bds lecture notes pdf download. The advantages of restoring the proximal lesion from the lingual approach include. The occlusal contacts are located predominately on surfaces that will be occupied by the restoration, with little or no contact on tooth structure. In addition, the preparation for an amalgam restoration typically requires 90degree cavosurface margins and specific axial depths that allow incorporation of secondary retentive features. However, an amalgam or resin restoration could be utilized in a tooth having conservative pulpal access, sound lateral walls, and less than 2 years to exfoliation.
Amalgam possesses excellent physical properties and its use in primary molars has resulted in highly successful longterm. Tf class 5 restoration amalgam can be used on maxillary anterior teeth, but not on mandibular anterior teeth. The outline form of the class iii amalgam preparation may include only the proximal. Management of class i and class ii amalgam restorations with. Class i, ii, and vi amalgam restorations pocket dentistry. Postoperative sensitivity of class i, ii amalgam and. Stockton state hospital stockton calif bibliography 1. The cleoid end has a spade shape a pointed tip and is sharp around the entire periphery. Contact area carious lesion proximal view vertical section. Class 5 amalgam preparation and restoration quizlet.
Triangular or rounded plastic or wooden, various sizes and color. Repair of posterior teeth with class vi defects resulting from caries, erosion, or wear has been accomplished with gold foil, silver amalgam, and resinbased composite. Survival and reasons for failure of amalgam versus composite. Conversely, dental amalgam is recommended in class ii applications where. Class v restorations class v restorations,by definition, include the gingival one third i. Distal surfaces of incisors and mesial surfaces of canine. Pdf cavity designs for class ii amalgam restorations. Traditional class ii amalgam preparations fall short of. Amalgam restorations have been used to restore decayed and damaged teeth for over 150 years. An amalgam restoration that will contribute to the lingterm dental health of a. Mod amalgam restoration with deep mesial box, pt come with pain related to it.
The advantages of amalgam restorations include resistance to wear, tolerance to a wide range of clinical placement conditions, and excellent loadbearing properties. Jun 12, 2019 dental filling materials vary in their durability, compatibility with human tissues, and safety. Amalgam cavity preparation class 1 tooth enamel dentin. Class iii, iv, and v direct composite restorations. The video can be easily paused during presentation to engage in reflection on and discussion of previously presented information. Amalgam cavity preparation class 1 free download as powerpoint presentation. Types of restorations dentistry columbia university. Study of the occlusion, together with the remaining tooth contour and position of the adjacent tooth, before starting a cavity preparation, guides the placement of occlusal contacts and marginal ridge height in your restoration. Just click on the link below to download bds lecture notes on amalgam restoration in pdf format. The procedure for the removal of the carious lesion is the same as that of a class i.
The blades are crossserrated at the tip first 45 mm. Contact area carious lesion proximal view vertical section buccal view. Class v tooth preparation for amalgam restorations slideshare. Amalgam can be used to replace missing cusps, especially nonfunctional cusps, and as a buildup material for a core foundation before placing a crown. The transition from amalgam to other restorative materials in. Class ii silver amalgam preparations will vary with the morphology, anatomy and extent of carious involvement of the individual tooth being. Class v cavity for all anterior teeth should be filled by tooth colored restorative materials, because the metallic color of amalgam does not match the color of tooth. The patient has been anesthetized with one carpule of 2% xylocaine with 1. Class iii amalgam restorations are usually prepared on.
But, in actuality, amalgam fillings consist of silver, 50% mercury, tin and copper with small amounts of zinc, indium and palladium. Restorative dentistry in primary teeth decisions to treat. Physical characteristics are comparable to enamel and dentin 5. August 1, 2016 classification of dental caries and restorations dental caries are not evenly distributed throughout the mouth. The proposed restoration will be wide, replace a functional cusp or extend onto the anatomic root. Amalgam is a directfill material used primarily for restoring lesions on the mesial, distal, occlusal, and lingual surfaces of posterior teeth. Cariesrestore class i copyrite20i5, 2012 2009, 2005, 2002, t9gs, lggo, tgg5, 1980, 1976 by saunders. Restorative dentistry class ii total practice solution.
Classification of dental caries and restorations dental. They are of two broad typesdirect and indirectand are further classified by location and size. Polishing amalgam restorations a selfstudy module developed by carlene paarmann, rdh, med. Most people refer to amalgam fillings as silver fillings because of their color when first place. Raghad baidas rah alrefaie rasha alrasheed rana aldakheel. The first step is the development of the ideal cavity preparation. Craig school of dentistry, university of michigan, ann arbor, michigan, 48104, usa a computerized dental model was used to study the stress induced in a class 1 amalgam restoration when supported by bases of vary ing materials and thicknesses. It also presents information about any differences in these classes of restorations when a glass ionomer type of material is used for the restoration. Pdf a classification system for variations in cavity design and finish has been developed for application. Hi guys, i am sharing bds lecture notes on amalgam restoration in pdf format. Restorative dentistry in primary teeth intercoronal restorations and stainless steel crowns norman tinanoff, dds, ms august 8, 2014 outline decisions to treat class i amalgam composite incomplete caries removal class ii amalgam composite restorative materials for intercoronal restorations stainless steel restorations. Black classified the most common sites for dental caries. Amalgam historically, owing to the simplicity of its use dental amalgam is the most popular restorative material.
The facial enamel is conserved for enhanced esthetics. Posterior class vi adhesive tooth repair inside dentistry. Scribd is the worlds largest social reading and publishing site. Some unsupported, but not friable, enamel may be left on the facial wall of a class iii or class iv preparation. The occlusal contacts are located predominately on surfaces that will be occupied by the restoration, with little or. To aid in assessment of comprehension of basic concepts covered in the class i amalgam restoration video, an eight question multiplechoice quiz is also included in this submission. Amalgam restoration bds lecture notes pdf download studynama. Loose enamel rods at the gingival floor of a class ii amalgam cavity should be removed using.
A dental restoration or dental filling is a treatment to restore the function, integrity, and morphology of missing tooth structure resulting from caries or external trauma as well as to the replacement of such structure supported by dental implants. Class i, ii amalgam and composite restorations with varying depths performed for 104 patients 1459 years old referring key words amalgam restoration, composite restoration, postoperative sensitivity correspondence dr. Complete lower denture f or c partial upper denture p tongue cheeks buccal buccal buccal buccal occlusal occlusal occlusal occlusal lingual lingual lingual lingual tongue. Jul 31, 2016 classification of dental caries and restorations dental caries are not ev enly distributed throughout the mouth. Minimalintervention dentistry, such as repair or refinishing of localized defects of restorations, could increase the longevity of the amalgam restorations and reduce patient stress regarding treatment cost. Jun 27, 2014 although a high number of patients were lost to followup, the results show that repair of defective amalgam restorations is a good alternative to replacement. Similar shape to beaver tail, smooth metal, single or double. Amalgam amalgam is an alloy in which mercury occurs as a main component. Evidencebased guidelines for planning and placing direct. Extention of the preparation incisally, gingivally, mesially and distally untill the.
One 18monthold child had a maxillary primary molar restored using a nanoionomer resin. Effects of cement bases stresses amalgam restorations. The primary disadvantage of class iii and v amalgam restorations is that they are metallic and unesthetic. Finishing amalgam restorations involves removing marginal irregularities, defining anatomical contours, and smoothing the surface roughness of the restoration. Amalgam is used for the restoration of many carious or fractured posterior teeth and in the replacement of failed restorations. Start studying class 5 amalgam preparation and restoration. Certain surface s of the teeth are particularly susceptible to carious lesions.
Subjects received a total of 1,748 restorations at baseline, which the authors followed for up to seven years. Just click on the link below to download bds lecture notes on amalgam restoration in pdf. The gamma2 phase of amalgam is primarily responsible for the relatively high values of creep exhibited by some materials. Management of class i and class ii amalgam restorations with localized defects. Amalgam restorations for class v cavities jada american dental. An amalgam restoration that will contribute to the lingterm dental health of a patient requires proper finishing and polishing procedures. Class ii cavity preparation introduction a class ii carious lesion develops apical to the contact area on the proximal surfaces of posterior teeth. Jan 28, 20 amalgam is a restorative material especially suitable for classes i and ii restorations in teeth that encounter heavy chewing forces. Class iii and v amalgam restorations pocket dentistry.
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