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ePaper created 2016-01-20, 13:53:08 | version 1.38.0
Finally,thecoronalreconstructionwasperformed with the previously used compound resin in incre- mental portions and photoactivation was conducted (Figs. 10 & 11). A marking was made on the most incisal portion of the pins to guide the subsequent cropping of the pins (Fig. 12). The anatomical pin was then removed and the final photoactivation was performed for 40 seconds (Fig. 13). Soon after, the pin was adapted to the remaining coronal structure (Fig. 14). After the preparation phase of the anatomical pinandcoronalportionofthecorewithcompound resin, preparation for adhesive cementation to the remaining tooth began (Fig. 15). Acid etching of the pin was performed for 30 seconds, and then it was washed and dried. The silane was then applied (Silano) for 20 seconds, as well as the adhesive (Fusion-Duralink)withsubsequentphotoactivation for 20 seconds (Figs. 16–18). After the anatomical pin had been prepared, acid etching was performed on the remaining tooth for 20 seconds,followedbywashinganddryingitlightly toleavethedentinemoist(Fig.19).Thedentineprimer andtheadhesive(Fusion-Duralinksystem)wereapplied and then photoactivated for 20 seconds (Fig. 20). The cementation was done with auto-polymeris- able resin cement, waiting a period of five minutes for the cement to chemically set (Figs. 21 & 22). Once the cementation of the anatomical pin was finished, the adhesive was applied to the coronal portion and photoactivated for 20 seconds, and the compound resinwasappliedinincrementalportionsforcreation of the core (Figs. 23 & 24). In order to complete the restorative process, the prosthetic preparation of the core was performed for future seating of a full ceramic crown (Fig. 25). _Conclusion The anatomical pin constituted a clinical alter- native for coronal and radicular reconstruction of endodontically treated teeth with significant de- struction of dentine. In addition to rehabilitating the tooth, this clinical approach promotes a more bal- anceddistributionofmasticatoryforceswithoutcom- promisingtheremainingtoothstructure,minimising the risk of radicular fracture. Moreover, this restora- tivealternativeprovidesthepossibilityofanaesthetic result with the use of a metal-free full crown._ Editorial note: A complete list of references is available fromthepublisher. Prof.FredericodosReisGoyatáisaLevelIadjunct professorandco-ordinatorofthedentistryprogramme atUniversidadeSeverinoSombrainVassourasinBrazil. He is also co-ordinator of the graduate programmes (improvementandspecialisationinprostheticdentistry) at the Escola deAperfeiçoamento Profissional (professional development school) of theAssociação Brasileira de Odontologia (Brazilian dental association) in Barra Mansa in Brazil. Prof.Orlando Izolani Neto is a professor in the integrated clinic of the dentistry programme at Universidade Severino Sombra. _about the authors roots Fig. 22 Fig. 23 Fig. 25 32 I I case report _ restoration of endodontically treated teeth roots1_2015 Fig. 21 Fig. 24