Pin amalgam restoration free download as powerpoint presentation. Class ii preparation and amalgam restoration rcdp youtube. This fiveyear prospective clinical trial evaluated amalgam. Amalgam is used for the restoration of many carious or fractured posterior teeth and in the replacement of failed restorations.
Design principles for class ii preparations december 1, 2012 by peter walford, dds, fcardp. The first step is the development of the ideal cavity preparation. Because the resource is a concise demonstration of the technique of class i amalgam restoration, other important related subjects dental caries and dental materials could not be covered in detail. Initial laboratory screening tests established that the greatest difference in re sistance to bulk fracture of a class ii amalgam restoration was between a cavity. This study evaluates whether improvements in the physical properties of dental amalgam affect the use of class ii preparations without an occlusal dovetail. Department of health and human services food and drug. Clinical evaluation of reasons for replacement of amalgam restorations in patients referring to a dental school in iran. Management of class i and class ii amalgam restorations with localized defects. A class ii amalgam preparation on a primary tooth does not require a gingival bevel because the enamel rods in the area incline gingivally. Amalgam restoration article about amalgam restoration by. Amalgam restoration bds lecture notes pdf download.
Pdf cavity designs for class ii amalgam restorations. Dec 01, 2012 design principles for class ii preparations december 1, 2012 by peter walford, dds, fcardp. The importance of the contact point in class ii restorations clinical case. Class ii amalgam cavity preparation and restoration done by second year dental students for a class project in 2 rds class. Replacement of an old amalgam and restoration of class ii cavities. However, after 30 years, posterior composite preparations have not been formulated into a definitive textbook. Durability of amalgam in the restoration of class ii. Tooth preparation for class ii amalgam restorations and its modifications 2. Restorative dentistry class ii total practice solution. Class ii amalgam cavity preparation and restoration youtube. Micro leakage decrease with aging of the amalgam restoration.
Condensation of the amalgam restoration principle objectives during amalgam. Occasionally, a class iii amalgam restoration may be done if isolation problems exist. Replacement reasons and service time of classii amalgam restorations in relation to cavity design. Commentary the most common reasons for replacing amalgam restorations are secondary caries and tooth restoration fractures 70%. For a more comprehensive understanding of dental caries management, further training and collaboration is strongly encouraged. Preoperative view showing the old amalgam and composite restorations to be replaced. The advantages of amalgam restorations include resistance to wear, tolerance to a wide range of clinical placement conditions, and. As there is advancement in the composite resinbased technology, the restorative treatment for amalgam restoration is usually the primary choice for various dental practices 5154. Restoration, in french history, the period from 1814 to 1830. Design principles for class ii preparations oral health. The rush of technology and the advancement of new concepts have produced a more conservative preparation. Patients pregnancy seems to strongly influence in case of amalgam restoration due to the safety concerns regarding the same. Management of class i and class ii amalgam restorations with.
Tooth preparation for class ii amalgam restorations and its modifications. Choose from 386 different sets of amalgam restoration flashcards on quizlet. Class ii amalgam restorations finishing and polishing of amalgam dr. Learn amalgam restoration with free interactive flashcards. Just click on the link below to download bds lecture notes on amalgam restoration in pdf. Class ii silver amalgam preparations will vary with the morphology, anatomy and extent of carious involvement of the individual tooth being. After class v gi restoration removal of a thin flush of gi is done by. Feb 15, 2018 hi guys, i am sharing bds lecture notes on amalgam restoration in pdf format.
In an ideal class ii amalgam preparation in a primary molar, the buccal and lingual walls of the occlusal surface diverge. 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 ii preparation and amalgam restoration rcdp nora omeir. Contact area carious lesion proximal view vertical section. Using the information from remake request slips in a dental schools predoctoral clinic, we examined the shortterm survival of class ii resin composite restorations versus class ii dental amalgam restorations. Introduction, cavity prep and retention lec 4 class v amalgam.
They are of two broad typesdirect and indirectand are further classified by location and size. Reasons for the replacement of defective amalgam restorations are secondary decay. Replacement of dental restorations has been the traditional treatment for defective restorations. Early failure of class ii resin composite versus class ii. It began with the first abdication of emperor napoleon i and the return of the bourbon king, louis xviii, but was interrupted 1815 by napoleons return the hundred days hundred days, name given to the period after the return of the deposed french emperor, napoleon i, from elba. Amalgam cavity preparation class 1 free download as powerpoint presentation.
The search plan of the electronic databases included. Management of class i and class ii amalgam restorations. Introduction a sound restoration cannot begin with a flawed preparation. The minimum amalgam restoration longevity was considered to be 18 months in the present study, since this is the period amalgam, as an appropriate restorative material, should withstand 1. Sep 24, 2014 restorative material thickness affects the ability of a material to resist fracture. Amalgam matrix for class ii and class v preparations. Pdf analyses of longterm clinical behavior of classii amalgam.
Just click on the link below to download bds lecture notes on amalgam restoration in pdf format. Pdf the dimensions of everyday classii cavity preparations for. Raghad baidas rah alrefaie rasha alrasheed rana aldakheel. It is indicated for carious lesions that are small and away from the pulp more than 1 mm distance. Failures of amalgam restorations fracture of the isthmus of a class ii due to insufficient bulk of amalgam marginal failure in proximal box area due to excessive flare of the cavosurface margin recurrent caries failure to extend preparation adequately 17. Class ii amalgam restoration instructions by dr ywom duration. Amalgam restoration an overview sciencedirect topics. The literature was searched using ovid medline and embase from 1966 to 2006. Amalgam cavity preparation class 1 tooth enamel dentin. Marginal quality of class ii composite restorations placed in bulk compared to an incremental technique. An evaluation of the fracture resistance of class 2 amalgam restorations with different cavity designs on maxillary premolars kundoor shashank, dayanand gopalrao chole, banthu ranga department of conservative and endodontics, pdu dental college, kegaon, solapur, maharashtra, india.
Class ii restorations using composite resins present a number of technical problems, including the creation of a tight interproximal contact points. Pdf the quality of routine class ii cavity preparations. Contact area carious lesion proximal view vertical section buccal view. A conservative technique revisited supports the possibility of remineralization. Conservative preparation designs for class ii amalgam restorations. The patient has been anesthetized with one carpule of 2% xylocaine with 1. The universal tofflemire matrix system is used in class ii restorations. The importance of the contact point in class ii restorations. Condense the class v amalgam restoration and then quickly finish it. Amalgam preparations reached consensus more than a century ago. Likewise, in rare clinical situations, class v amalgam restorations may be indicated in anterior areas where esthetics is not an important. It is the least techniques sensitive of all current direct restorations. Thus, the greatest impact on the patients and national dental services expenditures would be to increase the clinical service time of this amalgam restoration type.
Amalgam restoration definition of amalgam restoration by. Introduction amalgam although a brittle material, has been adequately serving as a restorative material since 175 years, understanding of its properties and judgment of the preparation design are the vital factors controlling its use. Clinical evaluation of interpfoximal retention grooves in class ii. Find powerpoint presentations and slides using the power of, find free presentations research about class 2 amalgam restoration ppt. An evaluation of the fracture resistance of class 2. Class ii cavity preparation introduction a class ii carious lesion develops apical to the contact area on the proximal surfaces of posterior teeth. Dec 29, 2017 class ii amalgam cavity preparation and restoration done by second year dental students for a class project in 2 rds class. Of the two types of aforementioned cavities class ii was found to be the most commonly failed restoration, which accounts for 66. The procedure for the removal of the carious lesion is the same as that of a class i. Should we repair or replace defective amalgam restorations.
The patient has been anesthetized with one carpule of 2 % xylocaine with 1. After achieving profound anesthesia, isolation with rubber dam is recommended. Amalgam class 2 cavity preparation to remember wedge heavily and protect adjacent teeth start from round smallest bur and then go to cylinder and from high to low speed you need to be from 3 to 3. Introduction, cavity prep and retention shows the armamentarium and procedure to prepare the cavity and cut retention in the preparation. A class ii amalgam preparation on a primary tooth does not. The quality of routine class ii cavity preparations for amalgam. The primary function of the matrix is to restore anatomic proximal contours and contact areas. In the student clinic, resin composite is used in approximately 58 percent of class ii restorations placed, and dental amalgam is used in the remaining 42 percent. Amalgam must be mixed according to the manufacturers instructions.
Class ii lesions, with margins located in enamel, on patients with low caries risk. Replacement reasons and service time of classii amalgam. For a cast gold restoration, a gingival bevel is used instead of a shoulder because a bevel 1. Introduction to amalgam restorations pocket dentistry. Amalgam is a restorative material especially suitable for classes i and ii restorations in teeth that encounter heavy chewing forces. The evolution of the contemporary cavity preparation sciencedirect. Clinical evaluation of reasons for replacement of amalgam.
Amalgam matrix for class ii and class v preparations connected at the proximal box. The present study, consequently, focus on the clinical performance and causes for the replacement of the class 2 amalgam restoration. In an ideal class ii amalgam preparation in a primary. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The advantages of amalgam restorations include resistance to wear, tolerance to a wide range of clinical placement conditions, and excellent loadbearing properties. Jan 28, 20 amalgam is a restorative material especially suitable for classes i and ii restorations in teeth that encounter heavy chewing forces. Hi guys, i am sharing bds lecture notes on amalgam restoration in pdf format. View and download powerpoint presentations on class 2 amalgam restoration ppt. This guide will discuss two forms of restoration, conservative class i restoration, and extensive class i restoration. Download as ppt, pdf, txt or read online from scribd. Nuha alkanhal gadeer alotaibi haya alsuairy nouf alfawaz 2 rds. The most common reasons for replacing amalgam restorations are secondary caries and tooth restoration fractures 70%.
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