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Li J, Dai M, Wang S, Zhang X, Fan Q, Chen L. Accuracy of immediate anterior implantation using static and robotic computer-assisted implant surgery: A retrospective study. J Dent 2024; 148:105218. [PMID: 38955260 DOI: 10.1016/j.jdent.2024.105218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 06/15/2024] [Accepted: 06/27/2024] [Indexed: 07/04/2024] Open
Abstract
OBJECTIVES To investigate the accuracy of immediate anterior implantation using static computer-assisted implant surgery (s-CAIS) and robotic computer-assisted implant surgery (r-CAIS). MATERIALS AND METHODS One hundred and six implants were immediately inserted in the anterior zone of 69 patients using a freehand technique, s-CAIS or r-CAIS. Postoperative cone-beam computed tomography scans were matched with preoperative plans to evaluate the deviations between the planned and placed implant positions. RESULTS The global coronal deviations in the freehand, s-CAIS, and r-CAIS groups were 1.29 ± 0.52 mm, 1.01 ± 0.41 mm, and 0.62 ± 0.28 mm, respectively. Significant differences were observed in the r-CAIS group compared to both the s-CAIS group and the freehand group (p < 0.05). However, no significant differences were found between the s-CAIS group and the freehand group (p > 0.05). The global apical deviations in the freehand, s-CAIS and r-CAIS groups were 1.78 ± 0.59 mm, 1.24 ± 0.52 mm and 0.65 ± 0.27 mm, respectively, while the angular deviations in the freehand, s-CAIS and r-CAIS groups were 6.46 ± 2.21°, 2.94 ± 1.71° and 1.46 ± 0.57°, respectively. Significant differences were observed in both the global apical deviations and angular deviations among the three groups (p < 0.05). CONCLUSIONS The accuracy of immediate anterior implantation with r-CAIS was better than that with s-CAIS. This difference is attributed to better control of the coronal, vertical and axial errors during r-CAIS. CLINICAL SIGNIFICANCE This study provides significant evidence to support the use of r-CAIS as a potential alternative in immediate anterior implantation.
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Affiliation(s)
- Jun Li
- Hospital of Stomatology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Meng Dai
- Hospital of Stomatology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Siwei Wang
- Hospital of Stomatology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Xitao Zhang
- Hospital of Stomatology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Qin Fan
- Hospital of Stomatology, Zunyi Medical University, Zunyi, Guizhou, China.
| | - Lin Chen
- Hospital of Stomatology, Zunyi Medical University, Zunyi, Guizhou, China.
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Li P, Guan J, Chen J, Xu S, Li A, Yang S. Trephination-based autonomous robotic surgery for dental implant placement: A proof of concept. J Dent 2024; 148:105090. [PMID: 38777103 DOI: 10.1016/j.jdent.2024.105090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 05/17/2024] [Accepted: 05/18/2024] [Indexed: 05/25/2024] Open
Abstract
OBJECTIVES To present a novel drilling protocol of trephine osteotomy technique for autologous bone grafting with simultaneous implant placement using an autonomous robotic system. METHODS The novel protocol consists of 1) preoperative procedures: marker fabrication and fixation, data acquisition, and preoperative planning; 2) intraoperative procedures: registration and calibration, and osteotomy and implant placement performed by an autonomous dental implant robot; 3) postoperative procedures: CBCT acquisition and accuracy assessment. RESULT The protocol was an effective method for implant osteotomy, with no reported intraoperative complications. The implant surgery was successfully completed, and autogenous bone was obtained. Meanwhile, the accuracy of implant placement was clinically acceptable, with minor deviations. CONCLUSIONS Trephination-based robotic surgery can be successfully implemented in implant osteotomy, which might replace freehand implant surgery and conventional drilling protocol. However, further clinical studies are necessary. CLINICAL SIGNIFICANCE The main finding of this case is a potential alternative for preserving autogenous bone during implant surgery.
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Affiliation(s)
- Ping Li
- Department of Prosthodontics, School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Medical University, Guangzhou 510180, China; Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou Medical University, Guangzhou 510180, China; Center of Oral Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510280, PR China
| | - Jiajia Guan
- Department of Prosthodontics, School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Medical University, Guangzhou 510180, China; Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou Medical University, Guangzhou 510180, China
| | - Jiahao Chen
- Department of Stomatology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, PR China
| | - Shulan Xu
- Center of Oral Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510280, PR China
| | - An Li
- Department of Periodontology, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510280, PR China.
| | - Shuo Yang
- Center of Oral Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510280, PR China.
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Kim J, Park JY, Lee JY, Kim DM, Lee J, Jung UW, Lim YJ, Cha JK. Randomized controlled trial on the efficacy of a custom-made, fully guided implant system for flapless crestal sinus floor elevation: Accuracy and patient-reported outcomes. Clin Oral Implants Res 2024. [PMID: 39101395 DOI: 10.1111/clr.14341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 07/10/2024] [Accepted: 07/23/2024] [Indexed: 08/06/2024]
Abstract
OBJECTIVE To compare fully guided flapless implant surgery using a light-cured surgical guide (FG group) with partially guided open flap surgery (PG group) in the posterior maxilla when performing simultaneous sinus floor elevation in terms of the accuracy, time requirements, and patient/clinician-reported outcomes (PROMs and CROMs). MATERIALS AND METHODS In this study, 56 tissue-level implants were placed with crestal sinus floor elevation in 56 patients at single-tooth sites, with 28 implants allocated to the PG group and 28 to the FG group. The deviations of the placed implants from the virtually planned positions were measured at the implant platform and apex and for the angular deviation. The presurgical preparation time and the duration of surgery were measured. PROMs and CROMs were made by administering questionnaires at multiple time points. RESULTS Horizontal deviations at the platform and apex and the angular deviation were significantly smaller in the FG group than the PG group (p < .05). Presurgical preparation and surgery times were significantly shorter in the FG group (p < .001). Patient satisfaction and willingness to receive repeat treatment were significantly better in the FG group than in the PG group (p < .005 and .025, respectively). Clinicians were more satisfied in the FG group than the PG group (p < .05). CONCLUSION When placing an implant with sinus floor elevation, the flapless approach using a fully guided surgical system can be more accurate, faster, and increase the satisfaction of both the clinician and patient compared to the partially guided surgery.
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Affiliation(s)
- Jongseung Kim
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Jin-Young Park
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Joo-Yeon Lee
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Da-Mi Kim
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Jungwon Lee
- One-Stop Specialty Center, Seoul National University Dental Hospital, Seoul, South Korea
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Young-Jun Lim
- Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, South Korea
| | - Jae-Kook Cha
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
- Institute for Innovation in Digital Healthcare, Yonsei University, Seoul, South Korea
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Yang Y, Geng N. Clinical study of immediate implant placement in posterior maxillary region assisted by dynamic real-time navigation: A randomized controlled trial. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2024:101976. [PMID: 39043292 DOI: 10.1016/j.jormas.2024.101976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 06/30/2024] [Accepted: 07/20/2024] [Indexed: 07/25/2024]
Abstract
OBJECTIVE To evaluate the accuracy of the implant accuracy and clinical effect of navigation-assisted immediate implant placement (IIP) in the posterior maxillary tooth region. METHODS This study included 60 patients with 96 implants undergoing IIP in the posterior maxillary region from January 2021 to December 2022, stratified into dynamic navigation and freehand implant groups. All clinical indicators, including initial stability, implant deviation (entry point deviation, end point deviation, depth deviation and angle deviation), marginal bone resorption and implant success rate, were systematically recorded. RESULTS All implants were successfully placed with an average torque of (24.38 ± 1.84)N.cm. The mean entry point deviation, apex point deviation and angular deviation in the navigation group were significantly smaller than that of the freehand group (P < 0.05). Marginal bone resorption was significantly less in the navigated group than in the freehand group (P < 0.05). All dental implants were considered an operational success and the mean follow-up time was (27.8 ± 8.4) months. CONCLUSION The application of dynamic navigation-assisted immediate implant placement in the maxillary posterior region can achieve good implant accuracy and satisfactory clinical results.
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Affiliation(s)
- Yun Yang
- Department of Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guang dong, China
| | - Ningbo Geng
- Department of Oral Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guang dong, China.
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Liu J, Chang Y, Zhu N, Zhang Y. Dynamic navigation-assisted bone ring technique for partially edentulous patients with severe vertical ridge defects. Int J Oral Maxillofac Surg 2024; 53:607-611. [PMID: 38278686 DOI: 10.1016/j.ijom.2024.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 12/19/2023] [Accepted: 01/11/2024] [Indexed: 01/28/2024]
Abstract
The autogenous bone ring technique is among the approaches for vertical alveolar ridge augmentation, and this technique can enable simultaneous implantation. However, the outcomes can be compromised due to donor site morbidity, shifting of the bone ring graft positioning, and inaccurate implant placement. In recent decades, dynamic navigation systems have been introduced into the field of implantology, allowing the accuracy of outcomes to be improved. This Technical Note describes the use of dynamic navigation to guide bone ring surgery, which is expected to enable more precise and predictable bone augmentation and implantation procedures, reduce the risk of injuries to the adjacent anatomical structures, and achieve better treatment outcomes.
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Affiliation(s)
- J Liu
- Department of Oral Implantology, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - Y Chang
- Department of Oral Implantology, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - N Zhu
- Department of Oral Implantology, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - Y Zhang
- Department of Oral Implantology, Peking University School and Hospital of Stomatology, Beijing, PR China.
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Gargallo-Albiol J, Ortega-Martínez J, Salomó-Coll O, López-Boado AP, Paternostro-Betancourt D, Hernández-Alfaro F. Mouth opening limitation and influence of age and surgical location for static fully guided dental implant placement: an observational, cross-sectional clinical study. Int J Oral Maxillofac Surg 2024; 53:526-532. [PMID: 38302300 DOI: 10.1016/j.ijom.2024.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 01/09/2024] [Accepted: 01/15/2024] [Indexed: 02/03/2024]
Abstract
The influence of age and region of the mouth was assessed in regard to mouth opening in fully guided implant placement. Ninety patients were included in this study, 30 in each of three age groups (20-34, 35-55, and >55 years). Maximum passive mouth opening was recorded in three locations: incisal, canine, and molar. The minimum distance required to allow the bone drilling sequence through a static fully guided approach was analysed for four implant systems: Straumann, MIS Dentsply, Astra Tech Dentsply, and Dentium. The mean ± standard deviation maximum mouth opening (all 90 patients) was 46.34 ± 7.70 mm, 36.82 ± 5.92 mm, and 30.99 ± 5.40 mm in the incisal, premolar, and molar region, respectively. No significant difference in mouth opening at any of the three locations was found between the age groups (all P > 0.05). However, a correlation was found between increasing age and decreasing average mouth opening in all three mouth regions; each additional 1 year resulted in a mean reduction of 0.13 mm, 0.09 mm, and 0.08 mm in the incisal, premolar, and molar region, respectively. The minimum required mouth opening was most likely to be met for implant placement in the incisal region (98.9% of all patients) and least likely to be met for placement in the molar region, particularly for older patients (as low as 30% of patients). Mouth opening remains a major limitation in fully guided implant surgery, especially in posterior areas and in older patients. The use of some implant systems in the posterior area may be limited to only one in three patients.
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Affiliation(s)
- J Gargallo-Albiol
- Department of Oral and Maxillofacial Surgery, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain; Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| | - J Ortega-Martínez
- Department of Oral and Maxillofacial Surgery, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain.
| | - O Salomó-Coll
- Department of Oral and Maxillofacial Surgery, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain
| | - A P López-Boado
- Department of Oral and Maxillofacial Surgery, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain
| | - D Paternostro-Betancourt
- Department of Oral and Maxillofacial Surgery, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain
| | - F Hernández-Alfaro
- Department of Oral and Maxillofacial Surgery, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain; Institute of Maxillofacial Surgery, Teknon Medical Center, Barcelona, Spain
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Younis H, Lv C, Xu B, Zhou H, Du L, Liao L, Zhao N, Long W, Elayah SA, Chang X, He L. Accuracy of dynamic navigation compared to static surgical guides and the freehand approach in implant placement: a prospective clinical study. Head Face Med 2024; 20:30. [PMID: 38745297 PMCID: PMC11092008 DOI: 10.1186/s13005-024-00433-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 04/29/2024] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Computer-guided implant surgery has improved the quality of implant treatment by facilitating the placement of implants in a more accurate manner. This study aimed to assess the accuracy of implant placement in a clinical setting using three techniques: dynamic navigation, static surgical guides, and freehand placement. We also investigated potential factors influencing accuracy to provide a comprehensive evaluation of each technique's advantages and disadvantages. MATERIALS AND METHODS Ninety-four implants in 65 patients were included in this prospective study. Patients were randomly assigned to one of three groups: dynamic navigation, static surgical guides, or freehand placement. Implants were placed using a prosthetically oriented digital implant planning approach, and postoperative CBCT scans were superimposed on preoperative plans to measure accuracy. Seven deviation values were calculated, including angular, platform, and apical deviations. Demographic and consistency analyses were performed, along with one-way ANOVA and post-hoc tests for deviation values. RESULTS The mean global platform, global apical, and angular deviations were 0.99 mm (SD 0.52), 1.14 mm (SD 0.56), and 3.66° (SD 1.64°) for the dynamic navigation group; 0.92 mm (SD 0.36), 1.06 mm (SD 0.47), and 2.52° (SD 1.18°) for the surgical guide group; and 1.36 mm (SD 0.62), 1.73 mm (SD 0.66), and 5.82° (SD 2.79°) for the freehand group. Both the dynamic navigation and surgical guide groups exhibited statistically significant differences in all values except depth deviations compared to the freehand group (p < 0.05), whereas only the angular deviation showed a significant difference between the dynamic navigation and surgical guide groups (p = 0.002). CONCLUSION Our findings highlight the superior accuracy and consistency of dynamic navigation and static surgical guides compared to freehand placement in implant surgery. Dynamic navigation offers precision and flexibility. However, it comes with cost and convenience considerations. Future research should focus on improving its practicality. TRIAL REGISTRATION This study was retrospectively registered at the Thai Clinical Trials Register-Medical Research Foundation of Thailand (MRF) with the TCTR identification number TCTR20230804001 on 04/08/2023. It was also conducted in accordance with the Declaration of Helsinki and approved by the institutional ethics committee at the Xian Jiaotong University Hospital of Stomatology, Xian, China (xjkqII[2021] No: 043). Written informed consent was obtained from all participants.
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Affiliation(s)
- Hamza Younis
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
- Department of Oral Implantology, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
- Department of Oral and Maxillofacial Surgery, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
- State Key Laboratory of Oral Diseases & National Center for Stomatology &, National Clinical Research Center for Oral Diseases and Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Chengpeng Lv
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
- Department of Oral Implantology, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - Boya Xu
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
- Department of Oral Implantology, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - Huixia Zhou
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
- Department of Oral Implantology, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - Liangzhi Du
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
- Department of Oral Implantology, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - Lifan Liao
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
- Department of Oral Implantology, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - Ningbo Zhao
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
- Department of Oral Implantology, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - Wen Long
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
- Department of Oral Implantology, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - Sadam Ahmed Elayah
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
- Department of Oral and Maxillofacial Surgery, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
- State Key Laboratory of Oral Diseases & National Center for Stomatology &, National Clinical Research Center for Oral Diseases and Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Xiaofeng Chang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China.
- Department of Oral Implantology, College of Stomatology, Xi'an Jiaotong University, Xi'an, China.
| | - Longlong He
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China.
- Department of Oral Implantology, College of Stomatology, Xi'an Jiaotong University, Xi'an, China.
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Sharaf MA, Wang S, Mashrah MA, Xu Y, Haider O, He F. Outcomes that may affect implant and prosthesis survival and complications in maxillary fixed prosthesis supported by four or six implants: A systematic review and meta-analysis. Heliyon 2024; 10:e24365. [PMID: 38317918 PMCID: PMC10839890 DOI: 10.1016/j.heliyon.2024.e24365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 01/04/2024] [Accepted: 01/08/2024] [Indexed: 02/07/2024] Open
Abstract
Objective To investigate whether the clinical and radiographical outcomes are affected when four or six implants support the maxillary fixed complete denture (FCD). Materials and methods This study was registered on PROSPERO (CRD42021226432) and followed the PRISMA guidelines. The focused PICO question was, "For an edentulous maxillary patient rehabilitated with an implant-supported fixed prosthesis, do the clinical and radiographical outcomes differ when four or six implants support the prosthesis ". A thorough search of the relevant studies was designed and performed electronically. The survival rate of implant and prosthesis, marginal bone loss, and complications (mechanical and biological) were the primary outcomes, whereas implant distribution and using the surgical guide, follow-up, and framework material were evaluated as secondary outcomes. Results Out of 1099 articles initially retrieved, 53 clearly stated the outcomes of interest and were included in this study. There were no significant differences in implant and prosthesis survival, technical/mechanical complications, and biological complications between the 4-implant group (4-IG) and the 6-implant group (6-IG). However, marginal bone loss (MBL) was significantly higher in the 4-IG (p < 0.01). The surgical guide and follow-up period did not significantly affect implant/prosthesis survival. Additionally, using the CAD/CAM milled framework and anteroposterior implant distribution were associated with significantly higher implant survival in the 6-IG (p < 0.01). Conclusion The findings of this study indicated that having a greater number of implants, as seen in the 6-implant group, can lead to a decrease in technical and biological complications and reduce marginal bone loss. It is worth noting that factors such as using CAD/CAM frameworks and the anteroposterior distribution of implants were recognized as important in improving implant survival rates when more implants are present.
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Affiliation(s)
- Mufeed Ahmed Sharaf
- Department of Prosthodontics, College of Dentistry, Ibb University, Ibb, Yemen
| | - Siyuan Wang
- Department of Prosthodontics, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Mubarak Ahmed Mashrah
- Department of Implantology, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong 510182, China
| | - Yangbo Xu
- Department of Prosthodontics, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Ohood Haider
- Department of Orthodontics, Medical Center of Stomatology, Second Xiangya Hospital, Central South University, Changsha, China
| | - Fuming He
- Department of Prosthodontics, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, Zhejiang, China
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Geng N, Ren J, Zhang C, Zhou T, Feng C, Chen S. Immediate implant placement in the posterior mandibular region was assisted by dynamic real-time navigation: a retrospective study. BMC Oral Health 2024; 24:208. [PMID: 38336661 PMCID: PMC10858590 DOI: 10.1186/s12903-024-03947-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 01/27/2024] [Indexed: 02/12/2024] Open
Abstract
BACKGROUND Efficient utilization of residual bone volume and the prevention of inferior alveolar nerve injury are critical considerations in immediate implant placement (IIP) within the posterior mandibular region. Addressing these challenges, this study focuses on the clinical efficacy and implant accuracy of dynamic real-time navigation, an emerging technology designed to enhance precision in implantation procedures. METHODS This study included 84 patients with 130 implants undergoing immediate placement in the posterior mandibular region. Stratified into dynamic navigation, static guide plate, and freehand implant groups, clinical indicators, including initial stability, distance to the inferior alveolar nerve canal, depth of implant placement, and various deviations, were systematically recorded. Statistical analysis, employing 1- or 2-way ANOVA and Student's t-test, allowed for a comprehensive evaluation of the efficacy of each technique. RESULTS All 130 implants were successfully placed with an average torque of 22.53 ± 5.93 N.cm. In the navigation group, the distance to the inferior alveolar nerve and the depth of implant placement were significantly greater compared to the guide plate and freehand groups (P < 0.05). Implant deviation was significantly smaller in both the navigation and guide plate groups compared to the freehand group(P < 0.05). Additionally, the navigation group exhibited significantly reduced root and angle deviations compared to the guide plate group(P < 0.05), highlighting the superior precision of navigation-assisted immediate implant placement. CONCLUSIONS It is more advantageous to use dynamic navigation rather than a static guide plate and free-hand implant insertion for immediate posterior mandibular implant implantation.
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Affiliation(s)
- Ningbo Geng
- Department of Stomatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China.
| | - Jing Ren
- Department of Stomatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Chi Zhang
- Department of Stomatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Tianren Zhou
- Department of Stomatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Chongjin Feng
- Department of Stomatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Songling Chen
- Department of Stomatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China.
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Raffa O, An H, Drago C, Elshewy M, Thompson GA. Accuracy of merging scans of definitive fixed prosthodontic impressions to obtain single, accurate digitized master casts. J Prosthodont 2023. [PMID: 38056598 DOI: 10.1111/jopr.13811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/20/2023] [Accepted: 12/03/2023] [Indexed: 12/08/2023] Open
Abstract
PURPOSE Many elastomeric impressions sent to commercial laboratory dental technicians may include marginal defects. To fabricate accurate restorations, digital technology may be used to merge digital files of defective impressions into a single standard tessellation language (STL) file free of errors. This would save clinicians and patients time and may improve clinical care. The purpose of this study was to compare the accuracy of digital master casts reconstructed from merged STL files of defective impressions with the file of the original defect-free preparations. MATERIAL AND METHODS Ivorine teeth on a dentoform were prepared to receive a posterior fixed dental prosthesis (FDP) with complete coverage preparations. An impression was made in a stock tray using polyvinyl siloxane (PVS) impression material and an extraoral scanner (E3, 3Shape, Denmark) was used to digitize the impression; this was the reference cast. Wax was used to create defects on the buccal and lingual margins of the preparations. Fifteen PVS impressions were made of the FDP preparations with defects in the mesial and distal margins; another set of 15 PVS impressions was made of FDP preparations with defects in the buccal and palatal margins for a total of 30 impressions. All impressions were digitized using the same extraoral scanner (E3, 3Shape, Denmark). Corresponding STL files were paired and merged, and a master cast was created by eliminating the defects using the scanned data. This master cast was compared to the reference cast using reverse engineering software (Geomagic, Morrisville, NC, USA). The results were expressed as average errors and standard deviations in the master casts relative to the reference cast. To account for the presence of positive and negative values in the data set, in terms of errors, the root mean square (RMS) value was calculated for each sample. RESULTS The mean average error in the sample was -0.4 μm. The average upper limit of 95% confidence interval was +36.5 μm, while the average lower limit of 95% confidence interval was -37.3 μm. The mean RMS of the errors found was 18.9 μm. CONCLUSIONS The results of this study indicated that merging digitized definitive impressions to correct marginal defects resulted in master casts with a high level of accuracy relative to the reference cast.
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Affiliation(s)
- Ossama Raffa
- Prosthodontics Department, National Guard Hospital, King Abdulaziz Medical City, Jeddah, Saudi Arabia
| | - Hongseok An
- Oral Rehabilitation and Biosciences, Oregon Health & Science University School of Dentistry, Portland, Oregon, USA
| | - Carl Drago
- Greenbrook Dental Group, Brookfield, Wisconsin, USA
| | - Mohamed Elshewy
- Restorative Sciences, Dental College of Georgia at Augusta University, Augusta, Georgia, USA
| | - Geoffrey A Thompson
- Restorative Sciences, Dental College of Georgia at Augusta University, Augusta, Georgia, USA
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11
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Rezaei A, Gholami P. Three-dimensional guided lateral window sinus lift and simultaneous implant placement: A dental technique. J Prosthet Dent 2023:S0022-3913(23)00546-2. [PMID: 37758554 DOI: 10.1016/j.prosdent.2023.07.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 07/28/2023] [Accepted: 07/28/2023] [Indexed: 09/29/2023]
Abstract
Lateral window sinus floor elevation is typically performed blind, and complications may be encountered. Guided surgery can help make the procedure more predictable with fewer complications and a shorter surgical time. The presented technique uses a surgical template for simultaneous implant placement and sinus floor elevation. An implant platform is used for determining the size, shape, and location of the window and the osteotomy depth. The technique uses a Ø5 mm bone profiler with a stop compatible with the surgical guide design to conduct the osteotomy, conservatively guiding the lateral window osteotomy in 3 dimensions.
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Affiliation(s)
| | - Paria Gholami
- Doctoral student, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran..
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12
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Sakkas A, Westendorf S, Thiele OC, Schramm A, Wilde F, Pietzka S. Prosthetically guided oral implant surgery. A retrospective cohort study evaluating the 5-year surgical outcome. GMS INTERDISCIPLINARY PLASTIC AND RECONSTRUCTIVE SURGERY DGPW 2023; 12:Doc06. [PMID: 37693294 PMCID: PMC10486885 DOI: 10.3205/iprs000176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Purpose This study primarily evaluated the 5-year implant survival and success rate of prosthetically guided inserted implants. The secondary aim was to evaluate the impact of clinical variables on the development of mucositis, peri-implant bone resorption, peri-implantitis, as well as early and late implant failure. Materials and methods An observational retrospective single-centre study was conducted on patients who were treated with dental implants in the department of oral and plastic maxillofacial surgery of the military hospital of Ulm University between 2008 and 2010. In all patients, computer-assisted 3D planning after wax-up of the prosthetic restoration and template-guided surgery with titanium implants were performed. Bone augmentation procedures were performed primarily if needed. Intraoperative and postoperative complications as well as technical and mechanical complications after prosthesis loading were evaluated. In a 5-year clinical and radiological follow-up, implant success and implant survival were assessed using descriptive statistics. A multivariable regression analysis evaluated the potential impact of augmentation procedures, wound healing complications, smoking, history of periodontitis, and preoperative API (approximal plaque index) and SBI (sulcus bleeding index) values on peri-implant mucositis, peri-implant bone resorption, peri-implantitis, as well as early and late implant failure. Results In this study, 466 implants in 283 patients were considered for inclusion, and sufficient data were obtained for analysis from 368 (78.9%) implants in 229 (80.9%) patients. An overall implant survival rate of 98.1% (n=361/368) at the 5-year follow-up was revealed. According to the success criteria of the study, the 5-year success rate was 97.04% (n=263/271). An early implant failure of 1.07% (n=5/466) was recorded. 48.2% of the implants were affected by peri-implant mucositis (n=122/253), while peri-implant bone resorption was detected in 21.7% of the radiologically examined implants (n=59/271). Fifteen cases of peri-implantitis (5.5%) were detected. Peri-implant bone resorption increased significantly after bone augmentation procedures (p=0.028). Wound healing complications after implantation significantly increased the prevalence of late implant failure in the maxilla (p<0.001). Peri-implant bone resorption and peri-implantitis were significantly more prevalent in smokers (p=0.022/p=0.043). Implants in patients with API>20% presented significantly higher rates of peri-implant mucositis (p=0.042). Wound healing complications after augmentation, history of periodontitis, and SBI>20% had no significant impact on the study parameters. Conclusions The study confirms the reliability of prosthetically guided implant surgery, showing a high implant survival and success rate in a 5-year follow-up. Intraoperative complications and technical or mechanical complications after prosthesis loading remain within acceptable clinical limits. The rate of peri-implant mucositis, peri-implant bone resorption, and peri-implantitis was within the current literature range. Optimizing periodontal health and reducing smoking would improve the outcome. Further studies need to clarify the clinical indications and investigate the long-term surgical outcome of this treatment concept.
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Affiliation(s)
- Andreas Sakkas
- Department of Cranio-Maxillo-Facial-Surgery, German Armed Forces Hospital Ulm, Germany
- Department of Cranio-Maxillo-Facial-Surgery, University Hospital Ulm, Germany
| | - Stefan Westendorf
- Department of Cranio-Maxillo-Facial-Surgery, German Armed Forces Hospital Ulm, Germany
| | - Oliver Christian Thiele
- Department of Oral and Plastic Maxillofacial Surgery, Ludwigshafen Hospital, Ludwigshafen, Germany
| | - Alexander Schramm
- Department of Cranio-Maxillo-Facial-Surgery, German Armed Forces Hospital Ulm, Germany
- Department of Cranio-Maxillo-Facial-Surgery, University Hospital Ulm, Germany
| | - Frank Wilde
- Department of Cranio-Maxillo-Facial-Surgery, German Armed Forces Hospital Ulm, Germany
- Department of Cranio-Maxillo-Facial-Surgery, University Hospital Ulm, Germany
| | - Sebastian Pietzka
- Department of Cranio-Maxillo-Facial-Surgery, German Armed Forces Hospital Ulm, Germany
- Department of Cranio-Maxillo-Facial-Surgery, University Hospital Ulm, Germany
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13
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Yang S, Chen J, Li A, Deng K, Li P, Xu S. Accuracy of autonomous robotic surgery for single-tooth implant placement: A case series. J Dent 2023; 132:104451. [PMID: 36781099 DOI: 10.1016/j.jdent.2023.104451] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 02/02/2023] [Accepted: 02/08/2023] [Indexed: 02/13/2023] Open
Abstract
OBJECTIVES This study aimed to investigate the accuracy of the autonomous robotic computer-assisted implant surgery (r-CAIS) for single-tooth implant placement. METHODS Patients with a single missing tooth were enrolled for the autonomous robotic implant surgery. The patients underwent a cone-beam computed tomography (CBCT) scan with a positioning marker. Virtual preoperative implant placement and a drilling plan were created before surgery. The robotic system automatically performed the implant osteotomy and placement intraoperatively under the surgeon's supervision. A postoperative CBCT scan was performed to evaluate the deviations between the planned and placed implants. RESULTS Ten patients with single dental implant placement were enrolled. No adverse surgical events and postoperative complications (i.e., infection and early implant failure) were reported. The autonomous robotic implant surgery exhibited a mean overall coronal deviation of 0.74 mm (95% CI: 0.53 to 0.94 mm), a mean overall apical deviation of 0.73 mm (95% CI: 0.53 to 0.93 mm), and an angular deviation of 1.11° (95% CI: 0.78 to 1.44°), respectively. CONCLUSIONS The high accuracy of autonomous r-CAIS technology in single-tooth implant placement was attributed to the control of the angular deviation and axial errors. CLINICAL SIGNIFICANCE The main findings of this study provide significant evidence to support the autonomous robotic implant surgery system as a potential alternative in dental implant surgery.
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Affiliation(s)
- Shuo Yang
- Center of Oral Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, China
| | - Jiahao Chen
- Center of Oral Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, China
| | - An Li
- Center of Oral Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, China
| | - Ke Deng
- Division of Periodontology and Implant Dentistry, Faculty of Dentistry, Prince Philip Dental Hospital, The University of Hong Kong, 34 Hospital Road, Hong Kong SAR 999077, China
| | - Ping Li
- Center of Oral Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, China.
| | - Shulan Xu
- Center of Oral Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, China.
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14
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Pomares-Puig C, Sánchez-Garcés MA, Jorba-García A. Dynamic and static computer-assisted implant surgery for completely edentulous patients. A proof of a concept. J Dent 2023; 130:104443. [PMID: 36720424 DOI: 10.1016/j.jdent.2023.104443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/24/2023] [Accepted: 01/26/2023] [Indexed: 01/30/2023] Open
Abstract
OBJECTIVES To assess the accuracy and patient reported outcome measures (PROMs) of the computer-guided "double factor" technique for treating fully edentulous patients. METHODS A proof of concept prospective study was designed. Ten consecutive patients requiring full arch dental implant supported rehabilitation in a private practice were enrolled between October 2021 and March 2022. All patients were treated by means of an All-on-four®, and implants were planned and placed according to the "double factor" technique. This technique merges the static and dynamic computer-guided surgical approach in the same surgery. The primary outcome was the accuracy of implant placement, measured by overlapping post- and pre-operative cone-beam computerized tomography with the implant planning. Additionally, PROMs and patient quality of life after surgery were evaluated using different questionnaires. Descriptive and bivariate data analyses were performed. Statistical significance was considered for p < 0.05. RESULTS A total of 48 implants were placed using the "double factor" technique, and 12 full-arch immediate loading prostheses were delivered. The mean angular deviation was 3.74° (standard deviation [SD]: 2). The total linear deviation at the apex and platform of the implant was 1.25 mm (SD: 0.55) and 1.42 mm (SD: 0.64), respectively. No statistically significant differences were found between tilted and axial implants, the upper and lower jaw, or the right and left side. High self-reported satisfaction was registered, and the Oral Health Impact Profile-14 (OHIP-14) score improved postoperatively (p = 0.002). CONCLUSIONS The "double factor" technique is a valid and accurate treatment approach for fully edentulous patients. CLINICAL SIGNIFICANCE The double factor technique merges the advantages of both the dynamic and static computer assisted surgery approaches, affording accurate and predictable results when treating fully edentulous patients in a minimally invasive manner.
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Affiliation(s)
| | - M Angeles Sánchez-Garcés
- Faculty of Medicine and Health Sciences, University of Barcelona, Researcher at the IDIBELL (Bellvitge Biomedical Research Institute), Barcelona, Spain.
| | - Adrià Jorba-García
- Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain.
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15
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Block MS. How to Avoid Errors When Using Navigation to Place Implants - A Narrative Review. J Oral Maxillofac Surg 2023; 81:299-307. [PMID: 36481276 DOI: 10.1016/j.joms.2022.11.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/18/2022] [Accepted: 11/06/2022] [Indexed: 12/12/2022]
Abstract
PURPOSE Surgeons placing implants use navigation for implant placement accuracy. The importance of this review is to document the sources of error that are involved with navigation so surgeons can recognize factors to decrease error. The objective is to provide surgeons with a reference to optimize navigation. METHODS Pubmed.gov was the information source. Years reviewed included 2010 to 2022. The inclusion criteria included only articles in peer-reviewed journals. In vitro results were included only if they involved testing of variables microgap, cone beam computerized tomography (CBCT) accuracy evaluation, or accuracy of printed models. Variables were searched and evaluated. Data collected included the objectives and outcomes of the study including statistical significance. The conclusions made by the authors were confirmed by evaluating the data analysis, and then these conclusions were listed in each error-related topic. RESULTS The search used terms which included guided implant surgery complications (n = 4,029), accuracy of CBCT scanners (n = 319), accuracy of implant navigation (n = 983), and the error between drills and static guides (n = 3). From this search, 70 articles were collated that satisfied the inclusion criteria. There are multiple sources of error that are less than 1 mm, including but not limited to errors associated with the scanner and method for scanning, errors associated with merging scanned files with the CBCT scan, errors using different guide stent fabrication methods, errors associated with intraoperative techniques, the learning curve, and planning error. If small errors are not taken into consideration, implant placement errors can exceed 1-2 mm of platform location and angulation errors in excess of 8°. CONCLUSION The surgeon needs to take into consideration controllable factors that will result in the avoidance of implant malposition and thus be able to effectively utilize navigation for accurate implant placement.
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Affiliation(s)
- Michael S Block
- Private Practice, Metairie, LA, Clinical Professor, LSU School of Dentistry, Department of Oral and Maxillofacial Surgery, Metairie, LA.
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16
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Scolozzi P, Michelini F, Crottaz C, Perez A. Computer-Aided Design and Computer-Aided Modeling (CAD/CAM) for Guiding Dental Implant Surgery: Personal Reflection Based on 10 Years of Real-Life Experience. J Pers Med 2023; 13:jpm13010129. [PMID: 36675790 PMCID: PMC9863604 DOI: 10.3390/jpm13010129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 01/03/2023] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
Traditional dental implant surgery has been challenged by the phenomenal progression in computer-assisted surgery (CAS) that we have been witnessing in recent years. Among the computer-aided technologies, computer-aided design and computer-aided manufacturing (CAD/CAM) techniques represent by far the most attractive and accepted alternatives over their dynamic counterpart, navigational assistance. Based on many years of experience, we have determined that CAD/CAM technology for guiding dental implant surgery is valuable for rehabilitation of the anterior maxillary region and the management of complete or severe partial edentulism. The technology also guarantees the 3D parallelism of implants. The purpose of the present report is to describe indications for use of CAD/CAM dental implant guided surgery. We analyzed the clinical and radiological data of thirteen consecutive edentulous patients treated using CAD/CAM techniques. All of the patients had stable cosmetic results with a high rate of patient satisfaction at the final follow-up examination. No intra- and/or postoperative complications were encountered during any of the steps of the procedure. The application of CAD/CAM techniques produced successful outcomes in the patients presented in this series.
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Affiliation(s)
- Paolo Scolozzi
- Division of Oral and Maxillofacial Surgery, Department of Surgery, Faculty of Medicine, Hôpitaux Universitaire de Genève, 1211 Genève, Switzerland
- Correspondence: ; Tel.: +41-223-728-002; Fax: +41-223-728-005
| | - Francesco Michelini
- Division of Oral and Maxillofacial Surgery, Department of Surgery, Faculty of Medicine, Hôpitaux Universitaire de Genève, 1211 Genève, Switzerland
| | - Claude Crottaz
- Division of Oral and Maxillofacial Surgery, Department of Surgery, Faculty of Medicine, Hôpitaux Universitaire de Genève, 1211 Genève, Switzerland
| | - Alexandre Perez
- Unit of Oral Surgery and Implantology, Division of Oral and Maxillofacial Surgery, Department of Surgery, Faculty of Medicine, Hôpitaux Universitaire de Genève, 1211 Genève, Switzerland
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17
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Yang S, Chen J, Li A, Li P, Xu S. Autonomous Robotic Surgery for Immediately Loaded Implant-Supported Maxillary Full-Arch Prosthesis: A Case Report. J Clin Med 2022; 11:6594. [PMID: 36362819 PMCID: PMC9654167 DOI: 10.3390/jcm11216594] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/26/2022] [Accepted: 11/02/2022] [Indexed: 08/01/2023] Open
Abstract
Robotic systems have emerged in dental implant surgery due to their accuracy. Autonomous robotic surgery may offer unprecedented advantages over conventional alternatives. This clinical protocol was used to show the feasibility of autonomous robotic surgery for immediately loaded implant-supported full-arch prostheses in the maxilla. This case report demonstrated the surgical protocol and outcomes in detail, highlighting the pros and cons of the autonomous robotic system. Within the limitations of this study, autonomous robotic surgery could be a feasible alternative to computer-assisted guided implant surgery.
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Affiliation(s)
| | | | | | - Ping Li
- Correspondence: (P.L.); (S.X.)
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18
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Computer-Guided Surgery for Dental Implant Placement: A Systematic Review. PROSTHESIS 2022. [DOI: 10.3390/prosthesis4040044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Implant therapy is currently the treatment of choice for the replacement of missing teeth. Correct implant positioning is of vital importance. To this end, radiographic techniques providing 3D information and guided surgery techniques, both static and dynamic, have been developed. The primary objective of this work is to study whether placing dental implants in partially edentulous patients with guided surgery techniques results in less, equal or greater precision than placing them freehand. The secondary objectives are to gain an understanding of the advantages and disadvantages, indications, limitations, and complications of this type of surgery. A literature search was performed in Pubmed and BVS, and six randomized clinical trials meeting the marked inclusion criteria were included. The different guided surgery techniques were compared with each other and with the traditional method. Freehand surgery was found to be the least accurate, as the implants placed with this technique showed the largest deviations between the planned position and the final position, both when calculating the global (3D) deviation and when measuring the deviation in each of the axes (vertical, mesio-distal, bucco-lingual and lateral), and the angular deviation and voxel overlap. In contrast, the most accurate surgeries were fully guided and half-guided, with the smallest deviations between the planned and final implant position. With any guided surgery technique, more precise implant positioning is achieved than with freehand placement. Advantages include reduced trauma and surgery time; disadvantages include reduced primary implant stability and higher cost. This type of surgery is more indicated in cases of critical anatomy, but may encounter limitations in terms of cost, degree of buccal opening, visibility and adjustment of the guides and the need for prior familiarization with the procedure. Nevertheless, this surgical technique reduces the complication rate.
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19
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Afshari A, Shahmohammadi R, Mosaddad SA, Pesteei O, Hajmohammadi E, Rahbar M, Alam M, Abbasi K. Free-Hand versus Surgical Guide Implant Placement. ADVANCES IN MATERIALS SCIENCE AND ENGINEERING 2022; 2022:1-12. [DOI: 10.1155/2022/6491134] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
One of the most key areas of dentistry is dental implant surgery. The use of digital equipment and software in dentistry has developed considerably in recent years compared to other fields of medicine. Since examining the advantages and disadvantages of each approach, along with case studies, can help physicians make informed decisions, this review study aims to raise the awareness of dentists to make easier decisions about using guided or free-hand surgery. When planning for a dental implant, one of the most challenging questions that doctors face is which method to use (guided surgery or free-hand). Choosing the right method, such as other clinical considerations, will depend on the individual circumstances of each patient and the preference of the treating physician. Free-hand surgery is a cost-effective method in which the flap is reflected, and, according to the doctor's diagnostic information, an implant is placed, which in many cases is a useful method. Guided surgery has the highest level of accuracy and control, in which osteotomy is designed and printed through a digital surgery guide, and depending on the complexity of the case and the patient's anatomy, it has a higher level of value than free surgery. The surgical guide helps the surgeon make the implant surgery more accurate, safer, simpler, at a lower cost, and in less time. In fact, there are patterns that convey information about the position of the tooth to the dentist before the implant is placed.
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Affiliation(s)
- Aysooda Afshari
- Postgraduate Student of Prosthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Rojin Shahmohammadi
- Postgraduate Student of Periodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Ali Mosaddad
- Student Research Committee, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ozra Pesteei
- Postgraduate Student of Periodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Emran Hajmohammadi
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Mahdi Rahbar
- Department of Restorative Dentistry, School of Dentistry, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Mostafa Alam
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kamyar Abbasi
- Department of Prosthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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20
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Lucena Alves CP, Vetromilla BM, Moreno LB, Helal L, Sarkis‐Onofre R, Pereira‐Cenci T. Systematic reviews on the success of dental implants present low spin of information but may be better reported and interpreted: An overview of systematic reviews with meta‐analysis. Clin Implant Dent Relat Res 2022; 24:105-115. [DOI: 10.1111/cid.13067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/22/2021] [Accepted: 12/31/2021] [Indexed: 01/05/2023]
Affiliation(s)
| | | | - Laura Barreto Moreno
- Graduate Program in Dentistry Federal University of Pelotas Pelotas Rio Grande do Sul Brazil
| | - Lucas Helal
- Centre for Journalology, Clinical Epidemiology Program Ottawa Hospital Research Institute, The Ottawa Hospital Ottawa Ottawa Canada
| | - Rafael Sarkis‐Onofre
- Graduate Program in Dentistry Meridional Faculty/IMED Passo Fundo Rio Grande do Sul Brazil
| | - Tatiana Pereira‐Cenci
- Graduate Program in Dentistry Federal University of Pelotas Pelotas Rio Grande do Sul Brazil
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21
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Abdelhay N, Prasad S, Gibson MP. Failure rates associated with guided versus non-guided dental implant placement: a systematic review and meta-analysis. BDJ Open 2021; 7:31. [PMID: 34408127 PMCID: PMC8373900 DOI: 10.1038/s41405-021-00086-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 07/16/2021] [Accepted: 07/24/2021] [Indexed: 12/12/2022] Open
Abstract
Objective The purpose of the systematic review and meta-analysis was to evaluate implant failure rates and their association with guided and free-hand implant placement techniques. Materials and methods A literature search was conducted across PubMed, Medline via Ovid, Cochrane database, and Google Scholar. The search was completed in September 2020. Series of meta-analyses were conducted to compare implant failure rates with guided and free-hand techniques. Results A total of 3387 articles were identified from the electronic search. After applying the inclusion criteria, eight articles were selected for qualitative assessment and four for quantitative synthesis (meta-analysis). The included studies had a risk ratio of 0.29 (95% CI: 0.15, 0.58), P < 0.001 for the use of guided implant placement. Implant failure rates were affected by the different placement techniques indicated by the test for overall effect (Z = 3.53, P = 0.0004). The incidence of implant failure in guided surgery versus free-hand surgery was found to be 2.25% and 6.42%, respectively. Conclusion Both guided and free-hand implant placement techniques resulted in a high implant survival rate. However, implant failure rates were almost three times higher in the free-hand implant placement category. A guided implant placement approach is recommended for a successful outcome.
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Affiliation(s)
- Nancy Abdelhay
- Faculty of Medicine and Dentistry, Department of Dentistry, University of Alberta, Edmonton, AB, Canada.,Faculty of Dentistry, Alexandria University, Alexandria, Egypt
| | - Soni Prasad
- Graduate Prosthodontics, Marquette University School of Dentistry, Milwaukee, WI, USA
| | - Monica Prasad Gibson
- Faculty of Medicine and Dentistry, Division of Periodontology, University of Alberta, Edmonton, AB, Canada.
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22
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Khonsari RH, Adam J, Benassarou M, Bertin H, Billotet B, Bouaoud J, Bouletreau P, Garmi R, Gellée T, Haen P, Ketoff S, Lescaille G, Louvrier A, Lutz JC, Makaremi M, Nicot R, Pham-Dang N, Praud M, Saint-Pierre F, Schouman T, Sicard L, Simon F, Wojcik T, Meyer C. In-house 3D printing: Why, when, and how? Overview of the national French good practice guidelines for in-house 3D-printing in maxillo-facial surgery, stomatology, and oral surgery. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2021; 122:458-461. [PMID: 34400375 DOI: 10.1016/j.jormas.2021.08.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 08/11/2021] [Indexed: 01/04/2023]
Abstract
3D-printing is part of the daily practice of maxillo-facial surgeons, stomatologists and oral surgeons. To date, no French health center is producing in-house medical devices according to the new European standards. Based on all the evidence-based data available, a group of experts from the French Society of Stomatology, Maxillo-Facial Surgery and Oral Surgery (Société Française de Chirurgie Maxillofaciale, Stomatologie et Chirurgie Orale, SFSCMFCO), provide good practice guidelines for in-house 3D-printing in maxillo-facial surgery, stomatology, and oral surgery. Briefly, technical considerations related to printers and CAD software, which were the main challenges in the last ten years, are now nearly trivial questions. The central current issues when planning the implementation of an in-house 3D-printing platform are economic and regulatory. Successful in-house 3D platforms rely on close collaborations between health professionals and engineers, backed by regulatory and logistic specialists. Several large-scale academic projects across France will soon provide definitive answers to governance and economical questions related to the use of in-house 3D printing.
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Affiliation(s)
- Roman Hossein Khonsari
- Service de chirurgie maxillofaciale et chirurgie plastique, Hôpital Universitaire Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris; Faculté de médecine, Université de Paris; Paris, France.
| | | | - Mourad Benassarou
- Service de chirurgie maxillofaciale et stomatologie, Hôpital Universitaire Pitié-Salpêtrière, Assistance Publique - Hôpitaux de Paris, Faculté de médecine, Sorbonne Université; Paris, France
| | - Hélios Bertin
- Service de chirurgie maxillofaciale et stomatologie, Centre Hospitalier Universitaire Hôtel-Dieu; Faculté de médecine, Université de Nantes; Nantes, France
| | | | - Jebrane Bouaoud
- Service de chirurgie maxillofaciale et stomatologie, Hôpital Universitaire Pitié-Salpêtrière, Assistance Publique - Hôpitaux de Paris, Faculté de médecine, Sorbonne Université; Paris, France
| | - Pierre Bouletreau
- Service de chirurgie maxillofaciale, stomatologie, chirurgie orale et chirurgie plastique de la face, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon; Faculté de Médecine, Université Claude Bernard Lyon I; Lyon, France
| | - Rachid Garmi
- Service de chirurgie maxillofaciale, plastique et reconstructrice, chirurgie orale et implantologie, Centre Hospitalier Universitaire Caen Normandie; Université de Caen Normandie; Caen, France
| | - Timothée Gellée
- Service de chirurgie maxillofaciale et stomatologie, Unité de chirurgie orale, Hôpital Universitaire Pitié-Salpêtrière, Assistance Publique - Hôpitaux de Paris; Faculté de médecine, Sorbonne Université; Paris, France
| | - Pierre Haen
- Service de chirurgie maxillofaciale, Hôpital d'Instruction des Armées Laveran; Marseille, France
| | - Serge Ketoff
- Service de chirurgie maxillofaciale, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - Géraldine Lescaille
- Service de chirurgie maxillofaciale et stomatologie, Unité de chirurgie orale, Hôpital Universitaire Pitié-Salpêtrière, Assistance Publique - Hôpitaux de Paris; Faculté de médecine, Sorbonne Université; Paris, France
| | - Aurélien Louvrier
- Service de chirurgie maxillofaciale, stomatologie et odontologie, Centre Hospitalier Régional Universitaire de Besançon; Faculté de Médecine, Université de Franche-Comté; Besançon, France
| | - Jean-Christophe Lutz
- Service de chirurgie maxillofaciale et stomatologie, Centre Hospitalier Universitaire de Strasbourg; Faculté de Médecine, Université de Strasbourg; Strasbourg, France
| | - Masrour Makaremi
- Département d'orthopédie dento-faciale, UFR des sciences odontologiques, Bordeaux, France
| | - Romain Nicot
- Service de chirurgie maxillofaciale et stomatologie, Centre Hospitalier Régional Universitaire de Lille; Faculté de Médecine Henri Warembourg, Université de Lille; Lille, France
| | - Nathalie Pham-Dang
- Service de chirurgie maxillofaciale et chirurgie plastique, Centre Hospitalier Universtiaire de Clermont-Ferrand; Faculté de Médecine, Université de Clermont Auvergne; Clermont-Ferrand, France
| | - Morgan Praud
- Service de chirurgie maxillofaciale et stomatologie, Centre Hospitalier Universitaire Hôtel-Dieu; Faculté de médecine, Université de Nantes; Nantes, France
| | | | - Thomas Schouman
- Service de chirurgie maxillofaciale et stomatologie, Hôpital Universitaire Pitié-Salpêtrière, Assistance Publique - Hôpitaux de Paris, Faculté de médecine, Sorbonne Université; Paris, France
| | - Ludovic Sicard
- Service de chirurgie orale, Hôpital Bretonneau, Assistance Publique - Hôpitaux de Paris; Faculté d'odontologie, Université de Paris; Paris, France
| | - François Simon
- Service de d'otorhinolaryngologie et chirurgie cervico-faciale pédiatrique, Hôpital Universitaire Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris; Faculté de médecine, Université de Paris; Paris, France
| | - Thomas Wojcik
- Service de chirurgie maxillofaciale et stomatologie, Centre Hospitalier Régional Universitaire de Lille; Faculté de Médecine Henri Warembourg, Université de Lille; Lille, France
| | - Christophe Meyer
- Service de chirurgie maxillofaciale, stomatologie et odontologie, Centre Hospitalier Régional Universitaire de Besançon; Faculté de Médecine, Université de Franche-Comté; Besançon, France
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- Service de chirurgie maxillofaciale et chirurgie plastique, Hôpital Universitaire Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris; Faculté de médecine, Université de Paris; Paris, France; BONE 3D, Paris, France; Service de chirurgie maxillofaciale et stomatologie, Hôpital Universitaire Pitié-Salpêtrière, Assistance Publique - Hôpitaux de Paris, Faculté de médecine, Sorbonne Université; Paris, France; Service de chirurgie maxillofaciale et stomatologie, Centre Hospitalier Universitaire Hôtel-Dieu; Faculté de médecine, Université de Nantes; Nantes, France; ENNOIA, Besançon, France; Service de chirurgie maxillofaciale, stomatologie, chirurgie orale et chirurgie plastique de la face, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon; Faculté de Médecine, Université Claude Bernard Lyon I; Lyon, France; Service de chirurgie maxillofaciale, plastique et reconstructrice, chirurgie orale et implantologie, Centre Hospitalier Universitaire Caen Normandie; Université de Caen Normandie; Caen, France; Service de chirurgie maxillofaciale et stomatologie, Unité de chirurgie orale, Hôpital Universitaire Pitié-Salpêtrière, Assistance Publique - Hôpitaux de Paris; Faculté de médecine, Sorbonne Université; Paris, France; Service de chirurgie maxillofaciale, Hôpital d'Instruction des Armées Laveran; Marseille, France; Service de chirurgie maxillofaciale, Groupe Hospitalier Paris Saint-Joseph, Paris, France; Service de chirurgie maxillofaciale, stomatologie et odontologie, Centre Hospitalier Régional Universitaire de Besançon; Faculté de Médecine, Université de Franche-Comté; Besançon, France; Service de chirurgie maxillofaciale et stomatologie, Centre Hospitalier Universitaire de Strasbourg; Faculté de Médecine, Université de Strasbourg; Strasbourg, France; Département d'orthopédie dento-faciale, UFR des sciences odontologiques, Bordeaux, France; Service de chirurgie maxillofaciale et stomatologie, Centre Hospitalier Régional Universitaire de Lille; Faculté de Médecine Henri Warembourg, Université de Lille; Lille, France; Service de chirurgie maxillofaciale et chirurgie plastique, Centre Hospitalier Universtiaire de Clermont-Ferrand; Faculté de Médecine, Université de Clermont Auvergne; Clermont-Ferrand, France; Méthodologie, Sorbonne Université; Paris, France; Service de chirurgie orale, Hôpital Bretonneau, Assistance Publique - Hôpitaux de Paris; Faculté d'odontologie, Université de Paris; Paris, France; Service de d'otorhinolaryngologie et chirurgie cervico-faciale pédiatrique, Hôpital Universitaire Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris; Faculté de médecine, Université de Paris; Paris, France
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Factors Influencing the Accuracy of Freehand Implant Placement: A Prospective Clinical Study. Dent J (Basel) 2021; 9:dj9050054. [PMID: 34068734 PMCID: PMC8151810 DOI: 10.3390/dj9050054] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/14/2021] [Accepted: 05/07/2021] [Indexed: 12/25/2022] Open
Abstract
(1) Background: The objective of implant prosthetic restoration is to ensure the best possible rehabilitation of function and esthetics. Optimal positioning of the implant with regard to the bone availability, surrounding soft tissue, and prosthetic sustainability should be strived for during implant placement. The factors influencing freehand implant placement and the accuracy achieved with this procedure are investigated in this prospective clinical study. (2) Methods: Implants were placed in the single-tooth edentulous sites of the premolar and molar areas in 52 patients. Three-dimensional (3D)-planning was performed virtually prior to the freehand implant operation, and the desired position of the implant was provided to the surgeon. (3) Results: The deviations between the planned and the actually achieved position with freehand implant placement showed the following mean values and standard deviations: angle 8.7 ± 4.8°, 3D deviation at the implant shoulder 1.62 ± 0.87 mm, mesiodistal deviation 0.87 ± 0.75 mm, buccolingual deviation 0.70 ± 0.66 mm, and apiocoronal deviation 0.95 ± 0.61 mm. The type of jaw had a significant influence on accuracy. Major deviations were observed in the lower jaw. Furthermore, the timing of implant placement influenced the mesiodistal deviation and angular deviation; (4) Conclusions: Freehand implant placement demonstrated a higher level of deviation between the planned and actually achieved implant positions. In particular, the ranges showed a large spread. From a prosthetic point of view, there may be complications during the restoration of the prosthetic crown if the implant exit point is not optimally located or if the implants show a high angular deviation.
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Velasco-Ortega E, Jiménez-Guerra A, Ortiz-Garcia I, Moreno-Muñoz J, Núñez-Márquez E, Cabanillas-Balsera D, López-López J, Monsalve-Guil L. Immediate Loading of Implants Placed by Guided Surgery in Geriatric Edentulous Mandible Patients. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18084125. [PMID: 33924711 PMCID: PMC8069868 DOI: 10.3390/ijerph18084125] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 03/30/2021] [Accepted: 04/04/2021] [Indexed: 12/13/2022]
Abstract
The aim of this study was to show the clinical outcomes of the immediate loading of implants inserted by guided surgery in edentulous mandible patients. Edentulous mandible patients were diagnosed with oral examination, cone beam computerized tomography and diagnostic casts for intermaxillary relations and treated with 8–10 implants for rehabilitation with guided surgery and immediate loading. After flapless surgery, implants were loaded with an immediate acrylic temporary prosthesis. After a period of six months, a ceramic definitive full-arch prosthesis was placed. A total of 22 patients (12 females and 10 males) were treated with 198 implants. Eleven patients (50%) had a previous history of periodontitis. Six patients (27.3%) were smokers. The follow-up was 84.2 ± 4.9 months. Clinical outcomes showed a global success rate of 97.5% of implants. Five implants were lost during the healing phase with provisional prosthesis. Twenty-two fixed full-arch rehabilitations were placed in the patients over the 193 remaining implants. Mean marginal bone loss was 1.44 mm ± 0.45 mm. Six patients (27.3%) showed some kind of mechanical prosthodontic complication. Eighteen (9.3%) of the 193 remaining implants were associated with peri-implantitis. The antecedents of peri-implantitis are critical elements for the survival of the implants. The loss of implants was significant in patients who smoked up to 10 cigarettes, compared to non-smokers. Peri-implantitis is one of the key elements in the long-term follow-up of implants and it was more manifest in smoking patients, and in those with a history of peri-implantitis. Marginal bone loss was more significant in smokers. Full-arch rehabilitation is presented as a predictable alternative with minor fatigue problems that are easily solvable.
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Affiliation(s)
- Eugenio Velasco-Ortega
- Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41009 Sevilla, Spain; (E.V.-O.); (A.J.-G.); (I.O.-G.); (J.M.-M.); (E.N.-M.); (D.C.-B.); (L.M.-G.)
| | - Alvaro Jiménez-Guerra
- Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41009 Sevilla, Spain; (E.V.-O.); (A.J.-G.); (I.O.-G.); (J.M.-M.); (E.N.-M.); (D.C.-B.); (L.M.-G.)
| | - Ivan Ortiz-Garcia
- Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41009 Sevilla, Spain; (E.V.-O.); (A.J.-G.); (I.O.-G.); (J.M.-M.); (E.N.-M.); (D.C.-B.); (L.M.-G.)
| | - Jesús Moreno-Muñoz
- Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41009 Sevilla, Spain; (E.V.-O.); (A.J.-G.); (I.O.-G.); (J.M.-M.); (E.N.-M.); (D.C.-B.); (L.M.-G.)
| | - Enrique Núñez-Márquez
- Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41009 Sevilla, Spain; (E.V.-O.); (A.J.-G.); (I.O.-G.); (J.M.-M.); (E.N.-M.); (D.C.-B.); (L.M.-G.)
| | - Daniel Cabanillas-Balsera
- Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41009 Sevilla, Spain; (E.V.-O.); (A.J.-G.); (I.O.-G.); (J.M.-M.); (E.N.-M.); (D.C.-B.); (L.M.-G.)
| | - José López-López
- Faculty of Dentistry, Service of the Medical-Surgical Area of Dentistry Hospital, University of Barcelona, Hospitalet de LLobregat, 080997 Barcelona, Spain
- Correspondence:
| | - Loreto Monsalve-Guil
- Comprehensive Dentistry for Adults and Gerodontology, Faculty of Dentistry, University of Seville, 41009 Sevilla, Spain; (E.V.-O.); (A.J.-G.); (I.O.-G.); (J.M.-M.); (E.N.-M.); (D.C.-B.); (L.M.-G.)
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Bi S, Gu Y, Zou J, Wang L, Zhai C, Gong M. High Precision Optical Tracking System Based on near Infrared Trinocular Stereo Vision. SENSORS 2021; 21:s21072528. [PMID: 33916582 PMCID: PMC8038438 DOI: 10.3390/s21072528] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 03/29/2021] [Accepted: 03/31/2021] [Indexed: 12/25/2022]
Abstract
A high precision optical tracking system (OTS) based on near infrared (NIR) trinocular stereo vision (TSV) is presented in this paper. Compared with the traditional OTS on the basis of binocular stereo vision (BSV), hardware and software are improved. In the hardware aspect, a NIR TSV platform is built, and a new active tool is designed. Imaging markers of the tool are uniform and complete with large measurement angle (>60°). In the software aspect, the deployment of extra camera brings high computational complexity. To reduce the computational burden, a fast nearest neighbor feature point extraction algorithm (FNNF) is proposed. The proposed method increases the speed of feature points extraction by hundreds of times over the traditional pixel-by-pixel searching method. The modified NIR multi-camera calibration method and 3D reconstruction algorithm further improve the tracking accuracy. Experimental results show that the calibration accuracy of the NIR camera can reach 0.02%, positioning accuracy of markers can reach 0.0240 mm, and dynamic tracking accuracy can reach 0.0938 mm. OTS can be adopted in high-precision dynamic tracking.
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Affiliation(s)
- Songlin Bi
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230027, China; (S.B.); (J.Z.); (L.W.)
| | - Yonggang Gu
- Experiment Center of Engineering and Material Science, University of Science and Technology of China, Hefei 230027, China; (C.Z.); (M.G.)
- Correspondence:
| | - Jiaqi Zou
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230027, China; (S.B.); (J.Z.); (L.W.)
| | - Lianpo Wang
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230027, China; (S.B.); (J.Z.); (L.W.)
| | - Chao Zhai
- Experiment Center of Engineering and Material Science, University of Science and Technology of China, Hefei 230027, China; (C.Z.); (M.G.)
| | - Ming Gong
- Experiment Center of Engineering and Material Science, University of Science and Technology of China, Hefei 230027, China; (C.Z.); (M.G.)
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