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Microleakage of Postendodontic Systems

Abstract

Svrha rada bila je upozoriti na nužnost poštivanja pravila pri izradbi poslijeendodontskih nadogradnji zuba. Poslijeendodontski sustav mora osigurati retenciju i rezistenciju nadogradnje, rezistenciju preostaloga zubnog tkiva, te dobro brtvljenje korijenskoga kanala. Mikropropusnost se ipak može javiti i u definitivno ispunjenom kanalu, i u kanalu poslijeendodontski restaurativno opskrbljena zuba. Treba imati na umu da nakon izradbe intraradikularnoga ležišta u kanalu ostaje skraćeno apeksno punjenje, 3-5 mm dugačko, koje ne može spriječiti prolaz mikroorganizama i njihovih toksina u periradikularno tkivo. Zato pri izradbi poslijeendodontske nadogradnje treba poπtivati pravila izabranoga postupka i aseptičke uvjete rada.The aim of this paper is to emphasize the importance of following the proper rules for performing a procedure, such as making a postendodontic post and core system. A postendodontic system should provide retention and resistance of the restoration, resistance of the remaining tooth structure and good sealing of the root canal. Microleakage can occur in the root canal filling as well as in the post and core system. After preparation of the intraradicular post space remains apical root canal filling which is 3-5 mm in length, and is a questionable barrier to prevent microorganisms and their toxins from penetrating into the periradicular tissue. Therefore, one should use the proper techniques in aseptic conditions during post and core treatments

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