1Director, Studio Serri Odontoiatria e Salute, Quartu Sant’Elena (CA), Italy
2Research & Development Manager and Digital Dentistry Manager, LaStruttura S.p.A., Cassano Magnago (VA), Italy
3Private Practice, Cagliari, Italy
*Corresponding author: Marco Serri, Via Monsignor Angioni 64, Quartu Sant’Elena (CA), Italy
Submission: November 05, 2021Published: November 29, 2021
ISSN:2637-7764Volume7 Issue1
Aim: A fixed full-arch prosthesis on immediate loading dental implants, designed in a complete digital
workflow, requires the impressions of both dental arches, the exact position of the dental implants
and the registration of the maxillo-mandibular relationship. In case of surgical interventions requiring
significant modifications of the bone crest or the removal of all the teeth, with alteration and/or swelling
of the soft tissues, it is difficult to have accurate and stable landmarks to match the pre-surgical and the
post-surgical digital impressions. Therefore, the purpose of this study was to introduce a reliable method
to overcome such problem and realize a fixed full-arch prosthesis on immediate loading dental implants
by the use of a complete digital workflow.
Materials and methods: Prior to the surgical procedure and the digital impressions, two unique skeletal
scan bodies, each one combined with a mini-implant, are positioned distally in the dental arch (one left and
one right) where the dental implants are placed, to provide distinctive landmarks that remain unchanged
after surgery. Such procedure allows a perfect matching between the pre-surgical and post-surgical scans,
maintaining the information of the patient’s habitual occlusion in maximum intercuspation.
Result: The use of the skeletal scan bodies enables the oral surgeon to add the data of the patient’s
maxillo-mandibular relationship to the digital work flow.
Conclusion: The present protocol allows to achieve the position of the implants and the patient’s maxillomandibular
relationship in maximum intercuspation in the three dimensions with a single digital scan.
Keywords: Digital impression; Digital workflow; Full-arch prosthesis; Immediate loading; Habitual occlusion; CAD/CAM; Implant scan body; Skeletal scan body