Endokorona – alternatywna metoda odbudowy zębów trzonowych leczonych endodontycznie ze znaczną destrukcją korony
This has been shown to be an advantageous technique as the procedure is easy; it facilitates the steps of impression taking and protects the periodontium [8, 10]. Also, the use of ceramic has the advantages of biocompatibility and biomimicry and its wear coefficient is close to that of the natural tooth. Furthermore, the single interface of a 1-piece restoration makes cohesion look better [11, 12].
The objective of the preparation is to get a wide and stable surface resisting the compressive stresses that are frequent in molars [13]. The prepared surface is parallel to the occlusal plane to provide stress resistance along the major axis of the tooth [14]. The stress levels in teeth with endocrowns were lower than in teeth with prosthetic crowns [11, 15].
Due to the development of adhesive cementation systems, the need for macroretentive preparation for crowns has decreased [16].
The pulpal chamber cavity provides also retention and stability. Its trapezoidal shape in mandibular molars and triangular shape in maxillary molars increase the restoration’s stability, and additional preparation is not needed. The saddle form of the pulpal floor increases stability. This anatomy, along with the adhesive qualities of the bonding material, makes it unessential to attempt further use of post-involving root canals [14]. In fact, the root canals do not need any specific shape; therefore, they are not fragilized by the drilling and they will [...]
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