A proof-of-concept augmented reality system in oral and maxillofacial surgery

Advanced outcomes of mixed reality usage in orthognathic surgery: a systematic review

INTRODUCTION

Orthognathic surgery (OGS) is a highly sophisticated surgical technique that aims to repair a variety of skeletal and dental abnormalities, including misaligned jaws and teeth. It requires precise preoperative preparation and advanced surgical skills, which are typically learned through years of practical experience in operating rooms or laboratory-based surgical training facilities utilizing cadavers or models. The traditional physical hands-on method of surgical training is still used at OGS. However, this method requires a longer time of preparation. Currently, mixed reality (MR)-a combination of virtual reality and augmented reality technology-is an innovation of OGS. The present study aimed to present a comprehensive review of studies that assessed the advantages of utilizing mixed reality technology in OGS.

METHODS

A modified Population, Intervention, Comparison, Outcome strategy was performed using a combination of electronic (PubMed, Cochrane, Embase) and manual searches between 2013 and 2023 exploring mixed reality (MR) technology in OGS in the last 10 years. The inclusion criteria were limited to the patient and study model focusing on the clinical application of MR and the associated field of OGS.

RESULT

The initial search indicated 1731 studies, of which 17 studies were included for analysis. The main results indicated that the use of MR technology in OGS led to high accuracy and time reduction as primary outcomes and cost-effectiveness and skill improvement as secondary outcomes. The review firmly concluded that MR technology exhibited a positive impact on students, trainees, and oromaxillofacial surgeons. However, due to the heterogeneity of the included studies, meta-analyses could not be performed. Collectively, these findings provide strong evidence for the advantages of MR technology in orthognathic surgery.

CONCLUSION

MR technology significantly improves OGS planning efficiency by providing pre-surgical information and serving as an intraoperative navigation tool, reducing surgical time without compromising outcomes. Virtual training using MR technology exerts a positive impact on knowledge and skill improvement for OGS. This innovative technology will revolutionize the healthcare system and enhance patient care.

Complex Craniofacial Cases through Augmented Reality Guidance in Surgical Oncology: A Technical Report

Augmented reality (AR) is a promising technology to enhance image guided surgery and represents the perfect bridge to combine precise virtual planning with computer-aided execution of surgical maneuvers in the operating room. In craniofacial surgical oncology, AR brings to the surgeon's sight a digital, three-dimensional representation of the anatomy and helps to identify tumor boundaries and optimal surgical paths. Intraoperatively, real-time AR guidance provides surgeons with accurate spatial information, ensuring accurate tumor resection and preservation of critical structures. In this paper, the authors review current evidence of AR applications in craniofacial surgery, focusing on real surgical applications, and compare existing literature with their experience during an AR and navigation guided craniofacial resection, to subsequently analyze which technological trajectories will represent the future of AR and define new perspectives of application for this revolutionizing technology.

Visual Novels in Maxillofacial Surgery Education: A Hidden Gem

Visual novels are vital learning tools that promote student satisfaction and help them acquire the skills and knowledge needed to solve problems. They use interactive narrative designs to create a list of effective teaching strategies to enhance user experience. The practical use of these resources would require orienting learners to online training to improve their understanding of content. Educators must recognize the uniqueness of online learning designs and tools to develop effective strategies to enhance user understanding and improve student-teacher interactions. Visual novels' effectiveness in maxillofacial surgery education should involve assessing the play and diverting attention from lesson content to how effectively students learn. Deduction activities and features in the game should be informative and entertaining and make considerations for short- and long-term objectives like delivering feedback on immediate and appropriate tool use and communication. Visual novels are interactive, allowing users to control story development through specific actions. These interactive narratives are primarily used in academic and industrial contexts covering diverse subjects. These models have become increasingly crucial in maxillofacial surgery, providing technical help and improving surgery's quality and speed. Instructors could develop the games as a course component or integrate them with other course materials because they are easy to access and download. However, some visual novels have failed to incorporate educational content delivery with interactive experiences. This indicates a research gap in interactive narrative designs and the primary content delivery mechanisms. Incorporating these resources into education and practice would reduce reliance on experience alone, reducing surgical errors and mistakes. This review highlights the importance of visual novels in maxillofacial surgery education and emphasizes their educational role.