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ePaper created 2016-01-20, 13:53:08 | version 1.38.0
I 29 case report _ restoration of endodontically treated teeth I roots1_2015 the fibreglass pin, a compound resin is used to model the radicularconduitwiththeobjectiveofreducingthe space that would be filled by the resin cement. In this way, the combination of two restorative materials (pin andcompoundresin)willserveandbehavebiomechan- icallyasareplacementofthedentinestructurelost.4 Anatomical pins have an extremely favourable prognosisincasesoffragilerootsduetolossofdentine structureandtheycontributesignificantlytothereha- bilitation of the tooth in terms of both masticatory functionandaesthetics.5Inaddition,thefibreglasspins have a more uniform distribution of tension in the occlusal and radicular regions compared with metal pins.6 Etching and silanisation of the pins are of the utmost importance for promoting interfacial adher- ence,especiallyintheregionpreparedforthecore.7,8 This study reports on a clinical case that demon- strates the preparation technique for the anatomical pin, using fibreglass pins and compound resin, in a maxillary central incisor with weakened roots, with theobjectiveofre-establishingthecoronalportionof the tooth. Fig. 6 Fig. 8 Fig. 7 Fig. 9 Fig. 10 Fig. 12 Fig. 11 Fig. 13