Abstract
The transfer of information such esthetics and occlusion from the preoperative to the postoperative digital impression could reduce the time needed to build an immediately loaded full-arch not-guided rehabilitation and improve the quality of the immediate interim restoration. Based on the digital technology advances of the last years, the purpose of the present clinical report is to describe a novel digital workflow based on computer-aided design and computer-aided manufacturing aimed at fabricating an interim fixed full-arch restoration. The protocol entails recording preoperative information such as esthetics, the occlusal plane and the intermaxillary relationship in implant-supported complete rehabilitations before the surgical insertion of the fixtures. Then, the information is transferred to the postoperative impression using a digital index in the lower jaw and the palatal rugae in the upper jaw. Within the inherent limitations of a case report, the workflow was accurate, predictable, without errors from conventional protocols and was apparently characterized by low biological costs.
Highlights
Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations
The current clinical report describes a digital workflow in which the preoperative The current clinical report describes a digital workflow in which the preoperative and and postoperative scans were superimposed to transfer the occlusal relationship, aesthetpostoperative scans were superimposed to transfer the occlusal relationship, aesthetics ics qualities and gingival tissue to build an immediate interim fixed full-arch prosthesis
The palatal rugae atal rugae in the upper jaw and geometrical references on the lower digital index stabiin the upper jaw and geometrical references on the lower digital index stabilized with an lized with an anchor pin anteriorly and with occlusal coverage of the second molar posanchor pin anteriorly and with occlusal coverage of the second molar posteriorly provided teriorly provided us a stable point of reference to facilitate a high-quality, interim, fixed, us a stable point of reference to facilitate a high-quality, interim, fixed, full-arch prosthesis
Summary
Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. The interim fixed complete-arch implant-supported restoration provides information on occlusal vertical dimension (OVD), tooth shape and position for the definitive restoration [3]. To provide a reliable maxilla–mandibular three-dimensional relationship the main problem to overcome is to transfer information between different stages of implant supported rehabilitation due to the lack of stable points of reference in the lower jaw. In 2019, Shao et al [11] proposed a digital technique to fabricate an interim fixed complete-arch restoration based on the exact occlusion relationship, tooth position and tooth contour of the original dentition. The purpose of the present clinical report is to describe a novel digital workflow based on the use of a digital index that allows a precise superimposition of the mandibular presurgical scan with the postoperative impression aiming at fabricating an interim fixed complete-arch restoration. Information is transferred to the impressions with the scan abutments to be able to produce accurate immediate provisional prosthetic rehabilitation
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
