Abstract
This report describes the restoration of an anterior fractured tooth with a fiberglass CAD-CAM post-and-core followed by rapid orthodontic extrusion. The post space was prepared, the post-and-core was luted and a interim crown was luted to allow the tooth extrusion through the use of orthodontic buttons and elastic rubber bands. A lithium disilicate glass-ceramic crown was luted and the case was followed up after 6 and 12 months.
Highlights
Intraradicular post-and-cores made of metal or fiberglass are widely used to provide retention to conventional crowns when restoring severely damaged teeth
The preparation of the root canal with the matching drill of the selected fiberglass post can improve the adaptation, albeit it may result in undesirable wear of tooth structure (Chen et al, 2014)
A customized one-piece post-and-core milled from a CAD-CAM block aims to fill the entire post space with good adaptation (Liu et al, 2010; Moustapha et al, 2019)
Summary
Intraradicular post-and-cores made of metal or fiberglass are widely used to provide retention to conventional crowns when restoring severely damaged teeth. Adhesive failures between composite cement and intraradicular dentin and crown displacement due to poor mechanical properties of the composite core have been reported (Liu et al, 2010; Aleisa et al, 2016). A customized one-piece post-and-core milled from a CAD-CAM (computer-aided design/computer-aided manufacturing) block aims to fill the entire post space with good adaptation (Liu et al, 2010; Moustapha et al, 2019). Several restorative treatments with CAD-CAM materials have been demonstrated in the literature, there are no reports of customized intraradicular post-and-cores associated with the rapid orthodontic extrusion of anterior teeth (Linonati et al 2020); Abreu et al, 2021). This clinical case report aims to describe the restoration of a maxillary lateral incisor with a fiberglass CAD-CAM post-and-core followed by a rapid orthodontic extrusion and to demonstrate the potential of this restoration type to resist shear stress during extrusion
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