Factors that influence the accuracy of maxillomandibular relationship at maximum intercuspation acquired by using intraoral scanners: A systematic review

Marta Revilla-León; Abdul B Barmak; Hani Tohme; Burak Yilmaz; John C Kois; Miguel Gómez-Polo

doi:10.1016/j.jdent.2023.104718

Factors that influence the accuracy of maxillomandibular relationship at maximum intercuspation acquired by using intraoral scanners: A systematic review

J Dent. 2023 Nov:138:104718. doi: 10.1016/j.jdent.2023.104718. Epub 2023 Sep 27.

Authors

Marta Revilla-León¹, Abdul B Barmak², Hani Tohme³, Burak Yilmaz⁴, John C Kois⁵, Miguel Gómez-Polo⁶

Affiliations

¹ Department of Restorative Dentistry, School of Dentistry, University of Washington, Seattle, WA, USA; Faculty & Director of Research and Digital Dentistry, Kois Center, Seattle, WA, USA; Department of Prosthodontics, School of Dental Medicine, Tufts University, Boston, MA, USA. Electronic address: marta.revilla.leon@gmail.com.
² Eastman Institute of Oral Health, University of Rochester Medical Center, Rochester, NY, USA.
³ Founder and Head of Digital, AI, and Evolving Technologies, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon.
⁴ Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland; Associate Professor, Department of Restorative, Preventive and Pediatric Dentistry, School of Dental Medicine, University of Bern, Bern, Switzerland; Adjunct Professor, Division of Restorative and Prosthetic Dentistry, The Ohio State University, Ohio, USA.
⁵ Founder and Director Kois Center, Seattle, WA, USA; Affiliate Professor, Graduate Prosthodontics, Department of Restorative Dentistry, University of Washington, Seattle, WA, USA; Private Practice, Seattle, WA, USA.
⁶ School of Dentistry, Complutense University of Madrid, Madrid, Spain.

PMID: 37775027
DOI: 10.1016/j.jdent.2023.104718

Abstract

Objective: To review the factors that influence the accuracy of the maxillomandibular relationship at maximum intercuspation (MIP) acquired by using intraoral scanners (IOSs).

Material and methods: A systematic search was performed using five databases: MEDLINE/PubMed, Cochrane, Embase, World of Science, and Scopus. A manual search was also completed. Studies assessing the factors that influence the MIP acquired by using IOSs were included and organized based on the analyzed factor. Studies were evaluated by applying the Joanna Briggs Institute Critical Appraisal Checklist.

Results: Twenty-nine articles were included. Seven factors have been identified: IOS system, scan extension, edentulous areas, number, location, and extension of occlusal records, occlusal force, tooth mobility, and alignment methods. Nine studies evaluated the influence of IOS system. Four studies assessed the influence of the extension of the arch scan. Three studies evaluated the effect of edentulous spaces. Four studies agreed on the impact of the number, location, and extension of the occlusal records on the MIP accuracy. One study assessed the influence of the occlusal force, showing a smaller average interocclusal space with increased occlusal force. One study evaluated the influence of tooth mobility. Seven studies analyzed the influence of the alignment method on the MIP accuracy.

Conclusions: Most of the studies reported no difference on the MIP accuracy between half- and complete-arch scans. Areas with 2 or more missing teeth reduce the MIP accuracy. A bilateral and frontal record including 2 teeth or a bilateral posterior occlusal including at least 4-teeth is indicated for maximizing the MIP accuracy.

Clinical implications: When a complete-arch intraoral scans is obtained, a bilateral and frontal record including 2 teeth or a bilateral posterior occlusal record including at least 4-teeth is recommended for maximizing the accuracy of the MIP. When a half-arch intraoral scan is acquired, a posterior occlusal record including at least 4-teeth is indicated for optimizing the accuracy of the MIP.

Keywords: Accuracy; Digital occlusion; Digital scans; Influencing factors; Intraoral scanners; Maxillomandibular relationship; Static occlusion.

Publication types

Systematic Review

MeSH terms

Computer-Aided Design
Dental Arch / diagnostic imaging
Dental Impression Technique
Humans
Imaging, Three-Dimensional
Models, Dental
Mouth, Edentulous*
Tooth Mobility*