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Objectives: Although computer-assisted navigation (CAN) has been widely used in the reconstruction of maxillofacial fractures, it is insufficient to provide direct guidance for surgical operations and handle multiple maxillofacial fractures due to the lack of a healthy side for reference. To address the problem above, a 3D-printed guide and head model was used in combination with CAN in this study.Materials and Methods: In this process, 26 patients were randomly selected among those with multiple fractures treated from 09/2017 to 03/2021. They were randomly divided into the experimental and control groups, with 3D-printed guides and models used in the former group. Posttreatment computed tomography, surgical time and follow-up visits were conducted at 1 week and 3 months, respectively, to compare the quality of treatment, including in terms of infection, occlusal disorder, restricted mouth opening, midline displacement, and bilateral asymmetry. The Spearman rank correlation coefficient was used for assessment.Results: According to our results, the therapeutic effect was excellent in 12 cases and satisfactory in 1 case among the 13 cases in the experimental group, while the therapeutic effect was excellent in only 7, satisfactory in 3, and unsatisfactory in 3 cases in the control group.Conclusions: According to our analysis, the combined use of CAN and 3D printing significantly improved the treatment results of double-sided maxillofacial fractures (rs=0.448, P<0.05). The surgical time of the experimental group was significantly shorter than that of the control group (Z=-2.083, P<0.05).Clinical Relevance: This study broadens our understanding of the treatment of multiple maxillofacial fractures. The combined use of 3D printing technology and CAN can effectively shorten the operation time and achieve a better therapeutic effect.

Restoration of the occlusal relationship is critical in the treatment of maxillofacial fractures. Poor restoration of the occlusal relationship has a serious impact on the patient's oral function and physical and mental health. This study is based on computer-aided design and manufacturing and aimed to use computed tomography (CT) data to establish a maxillofacial bone model and perform virtual reduction of such fractures. The upper and lower dentition models were established and reconstructed via 3D printing. After the occlusal relationship was determined by the prosthodontist using the model, the occlusal relationship was obtained through an oral three-dimensional scanner. Based on the reconstructed occlusal relationship, an occlusal reduction guide plate was designed and manufactured to precisely reduce the occlusal relationship in patients with maxillofacial fractures. This study proposes a design process for occlusal guides for maxillofacial fractures that optimizes the traditional surgical processes and enhances surgical convenience. This study presents new ideas for the design of personalized surgical guides for maxillofacial fractures.

Background: Ambulatory surgery and single-visit surgery are becoming increasingly accepted and practiced worldwide due to their social and economic benefits. In China, however, their use is still insufficient and falling behind. To innovatively optimize the surgical procedure, research on the types and frequencies of surgeries is needed.Methods: The prognosis of patients also has yet to be studied. The clinical data of patients undergoing the ambulatory surgery were collected, and information on their chief complaint and basic information was specifically included. Follow-up phone calls were conducted 1 and 3 days, 1 and 2 weeks, and 1 month after treatment. Information on their recovery and well-being was collected.Results: A total of 427 patients were recruited for this study, including 224 males and 203 females. Their ages ranged from 1-68 and averaged 23.07±11. Ambulatory surgery was voluntarily selected by 43.55% of the patients. A total of 62.9% of them selected it for convenience, while 43.55% selected it for pain reduction. The three top diseases treated via ambulatory surgery were impacted teeth (56.7%). Postoperative complications occurred in 248 of the 427 patients, and the incidence rate was 58.08%. The top complication was postoperative pain (56.44%). The complications frequently occurred on Day 3 after the operation and resolved after 2 weeks. Conclusion: We believe ambulatory surgery is a safe and effective treatment for oral and maxillofacial diseases.Clinical Relevance: In current settings, ambulatory surgery can be further developed by optimizing the regulations regarding diagnosis and treatments, promoting the dissemination of medical and clinical knowledge, increasing the engagement of related personnel, and improving the professionalism and timeliness of postoperative follow-ups.

Background Ambulatory surgery and single-visit surgery are becoming increasingly accepted and practiced in oral and maxillofacial medicine worldwide due to their social and economic benefits. In China, however, their use is still insufficient and falling behind. To innovatively optimize the surgical procedure, research on the types and frequencies of surgeries is needed. The prognosis of patients also has yet to be studied. Methods The clinical data of patients undergoing the same treatments (ambulatory surgery) were collected, and information on their chief complaint and its history, age, and diagnosis characteristics was specifically included. Follow-up phone calls were conducted 1 and 3 days, 1 and 2 weeks, and 1 month after treatment. Information on their recovery and well-being was collected. Results A total of 427 patients were recruited for this study, including 224 males and 203 females. Their ages ranged from 1–68 and averaged 23.07 ± 11. Ambulatory surgery was voluntarily selected by 43.55% of the patients. A total of 62.9% of them selected it for convenience, while 43.55% selected it for pain reduction. The three top diseases treated via ambulatory surgery were impacted teeth (accounting for 56.7% of the total incidence), odontogenic cysts (14.75%), and supernumerary teeth (10.1%). Postoperative complications occurred in 248 of the 427 patients, and the incidence rate was 58.08%. The top three complications were postoperative pain (56.44%), restricted mouth opening (30.91%), and postoperative nausea and vomiting (7.49%). There were no cases of life-threatening complications or death. The complications frequently occurred on Day 3 after the operation and resolved after 2 weeks. Conclusion Ambulatory surgery has been increasingly acknowledged as one of the most effective patterns of treatment and service. Accordingly, broader use of it is necessary. Further development of ambulatory surgery (related to oral and maxillofacial surgery) is possible with the assistance of anesthesia and nursing personnel, while it may create multiple challenges for clinical institutions. In current settings, ambulatory surgery can be further developed by optimizing the regulations regarding diagnosis and treatments, promoting the dissemination of medical and clinical knowledge, increasing the engagement of related personnel, and improving the professionalism and timeliness of postoperative follow-ups.