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Tarce M, Becker K, Lahoud P, Shujaat S, Jacobs R, Quirynen M. Non-invasive oral implant position assessment: An ex vivo study using a 3D industrial scan as the reference model to mimic the clinical situation. Clin Oral Implants Res 2024; 35:854-863. [PMID: 37927146 DOI: 10.1111/clr.14206] [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: 07/31/2023] [Revised: 10/17/2023] [Accepted: 11/01/2023] [Indexed: 11/07/2023]
Abstract
AIM To introduce an objective method to evaluate the accuracy of implant position assessment in partially edentulous patients by comparing different techniques (conventional impression, intraoral scan, CBCT) to a reference 3D model obtained with an industrial scanner, the latter mimicking the clinical situation. MATERIALS AND METHODS Twenty-nine implants were placed in four human cadaver heads using a fully guided flapless protocol. Implant position was assessed using (a) a conventional impression, (b) an intraoral scan, and (c) CBCT and compared to an industrial scan. Three-dimensional models of intraoral scan body and implant were registered to the arch models and the deviation at implant shoulder, apex, and the angle of deviation were compared to each other as well as to the reference model. RESULTS The three assessment techniques showed statistically significant deviations (p < .01) from the industrial scan, for all measurements, with no difference between the techniques. The maximum deviation at the implant shoulder was 0.16 mm. At the implant apex this increased to 0.38 mm. The intraoral scan deviated significantly more than the CBCT (0.12 mm, p < .01) and the conventional impression (0.10 mm, p = .02). The maximum implant angle deviation was 1.0°. The intraoral scan deviated more than the conventional impression (0.3°, p = .02). CONCLUSION All assessment techniques deviated from the reference industrial scan, but the differences were relatively small. Intraoral scans were slightly less accurate than both conventional impressions and CBCT. Depending on the application, however, this inaccuracy may not be clinically relevant.
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Affiliation(s)
- Mihai Tarce
- Division of Periodontology & Implant Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
- Periodontology and Oral Microbiology, Department of Oral Health Sciences, Faculty of Medicine, KU Leuven, Leuven, Belgium
| | - Kathrin Becker
- Charité- Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Orthodontics and Dentofacial Orthopedics, Berlin, Germany
| | - Pierre Lahoud
- Periodontology and Oral Microbiology, Department of Oral Health Sciences, Faculty of Medicine, KU Leuven, Leuven, Belgium
- OMFS-IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven, Leuven, Belgium
- Department of Oral & Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Sohaib Shujaat
- OMFS-IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven, Leuven, Belgium
- Department of Oral & Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium
- King Abdullah International Medical Research Center, Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, King Saud bin Abdulaziz University for Health Sciences, Ministry of National Guard Health Affairs, Riyadh, Kingdom of Saudi Arabia
| | - Reinhilde Jacobs
- OMFS-IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven, Leuven, Belgium
- Department of Oral & Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Marc Quirynen
- Periodontology and Oral Microbiology, Department of Oral Health Sciences, Faculty of Medicine, KU Leuven, Leuven, Belgium
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Tang G, Liu S, Sun M, Wang Y, Zhu W, Wang D, Li X, Wu H, Men S, Zhang L, Feng C, Wang Y, Ding Y. High-precision all-in-one dual robotic arm strategy in oral implant surgery. BDJ Open 2024; 10:43. [PMID: 38830840 PMCID: PMC11148145 DOI: 10.1038/s41405-024-00231-6] [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: 03/21/2024] [Revised: 05/01/2024] [Accepted: 05/01/2024] [Indexed: 06/05/2024] Open
Abstract
INTRODUCTION Dental implantation has emerged as an efficient substitute for missing teeth, which is essential for restoring oral function and aesthetics. Compared to traditional denture repair approaches, dental implants offer better stability and sustainability. The position, angle, and depth of dental implants are crucial factors for their long-term success and necessitate high-precision operation and technical support. METHOD We propose an integrated dual-arm high-precision oral implant surgery navigation positioning system and a corresponding control strategy. Compared with traditional implant robots, the integrated dual-arm design greatly shortens the preparation time before surgery and simplifies the operation process. We propose a novel control flow and module for the proposed structure, including an Occluded Target Tracking Module (OTTM) for occlusion tracking, a Planting Plan Development Module (PPDM) for generating implant plans, and a Path Formulation Module (PFM) for controlling the movement path of the two robot arms. RESULT Under the coordinated control of the aforementioned modules, the robot achieved excellent accuracy in clinical trials. The average angular error and entry point error for five patients who underwent implant surgery using the proposed robot were 2.1° and 0.39 mm, respectively. CONCLUSION In essence, our study introduces an integrated dual-arm high-precision navigation system for oral implant surgery, resolving issues like lengthy preoperative preparation and static surgical planning. Clinical results confirm its efficacy, emphasizing its accuracy and precision in guiding oral implant procedures.
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Affiliation(s)
- Gang Tang
- Logistics Engineering College, Shanghai Maritime University, St. Haigang, Shanghai, 201306, Shanghai, China
| | - Shibo Liu
- Logistics Engineering College, Shanghai Maritime University, St. Haigang, Shanghai, 201306, Shanghai, China
| | - Meng Sun
- Electronic Information Engineering College, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, Jiangsu, China.
- Nanjing Panda Electronics Company Limited, Nanjing, 210000, China.
| | - Yide Wang
- Institut d'Electronique et des Technologies du numerique, Polytech Nantes-Site de la Chantrerie, 44306, Nantes, France
| | - Weidong Zhu
- Department of Mechanical Engineering, University of Maryland Baltimore County, Baltimore, MD, 21250, USA
| | - Dongmei Wang
- School of Mechanical Engineering, Shanghai Jiao Tong Univ, Shanghai, 200240, Shanghai, China
| | - Xiang Li
- School of Mechanical Engineering, Shanghai Jiao Tong Univ, Shanghai, 200240, Shanghai, China
| | - Hao Wu
- Department of Gastroenterology, Changhai Hospital, Naval Military Medical University, Shanghai, 200433, China
| | - Shaoyang Men
- School of Medical Information Engineering, Guangzhou University of Chinese Medicine, postcode 510006, Guangzhou, China
| | | | - Changfen Feng
- Emergency Department of Stomatology, Suzhou Stomatology Hospital, Suzhou, Jiangsu, 215031, China
| | - Yingfu Wang
- Logistics Engineering College, Shanghai Maritime University, St. Haigang, Shanghai, 201306, Shanghai, China
| | - Yuehua Ding
- School of Electronic and Information Engineering, South China University of Technology, Guangzhou, 510640, China
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He J, Zhang Q, Wang X, Fu M, Zhang H, Song L, Pu R, Jiang Z, Yang G. In vitro and in vivo accuracy of autonomous robotic vs. fully guided static computer-assisted implant surgery. Clin Implant Dent Relat Res 2024; 26:385-401. [PMID: 38214435 DOI: 10.1111/cid.13302] [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: 08/10/2023] [Revised: 12/04/2023] [Accepted: 12/22/2023] [Indexed: 01/13/2024]
Abstract
OBJECTIVES To assess the accuracy of autonomous robotic and fully guided static computer-assisted implant surgery (sCAIS) performed on models and patients. MATERIALS AND METHODS This study was divided into in vitro and in vivo sections. In vitro, 80 operators were assigned to two groups randomly. Forty operators performed forty autonomous robotic implant (ARI group) surgeries and the remaining forty operators carried out forty fully guided sCAIS (FGI group) surgeries on maxillary models, respectively. Each operator placed an implant in one maxillary model. In vivo, 60 patients with 113 implants from 2019 to 2023 (ARI group: 32 patients, 58 implants; FGI group: 28 patients, 55 implants) receiving implant surgeries were incorporated in this retrospective research. The preoperative and postoperative cone beam computer tomographs (CBCTs) were utilized to estimate the linear deviations and angular deviations in two-dimensional (2D) and three-dimensional (3D) space. The Pearson's chi-square test, Shapiro-Wilk test, Student's t test, Mann-Whitney U test and mixed models were applied, and p <0.05 was considered statistically significant. RESULTS In vitro, a total of 80 implants were enrolled and significant differences were found between the two groups (p < 0.001): The 3D deviation at the platform of ARI and FGI group was 0.58 ± 0.60 mm and 1.50 ± 1.46 mm, respectively, at the apex was 0.58 ± 0.60 mm and 1.78 ± 1.35 mm, respectively, and angle was 1.01 ± 0.87° and 2.93 ± 1.59°, respectively. Also, except for mesiodistal deviation at the implant platform, the rest linear and angular deviations in the ARI group were significantly lower than those in the FGI group in 2D space (p < 0.001). In vivo, a significantly lower mean of angular deviation (0.95 ± 0.50°, p < 0.001) and the linear deviation at both platform (0.45 ± 0.28 mm, p < 0.001) and apex (0.47 ± 0.28 mm, p < 0.001) were observed in ARI group when compared to the FGI group (4.31 ± 2.60°; 1.45 ± 1.27 mm; 1.77 ± 1.14 mm). CONCLUSIONS The use of autonomous robotic technology showed significantly higher accuracy than the fully guided sCAIS.
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Affiliation(s)
- Jin He
- 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, Cancer Center of Zhejiang University, Hangzhou, China
| | - Qinmeng Zhang
- 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, Cancer Center of Zhejiang University, Hangzhou, China
| | - Xueting Wang
- 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, Cancer Center of Zhejiang University, Hangzhou, China
| | - Mengdie Fu
- 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, Cancer Center of Zhejiang University, Hangzhou, China
| | - Hui Zhang
- 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, Cancer Center of Zhejiang University, Hangzhou, China
| | - Luyao Song
- 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, Cancer Center of Zhejiang University, Hangzhou, China
| | - Rui Pu
- 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, Cancer Center of Zhejiang University, Hangzhou, China
| | - Zhiwei Jiang
- 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, Cancer Center of Zhejiang University, Hangzhou, China
| | - Guoli Yang
- 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, Cancer Center of Zhejiang University, Hangzhou, China
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Zevallos EAA, Lima LHF, Mendes KLC, Sverzut AT. Accuracy of dental implants positioning in computer-assisted surgeries: In vitro study. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2024:101828. [PMID: 38508394 DOI: 10.1016/j.jormas.2024.101828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 03/22/2024]
Abstract
OBJECTIVES The aim of this study is to presents an experimental method for surgical guide confection using an intraoral scanner to obtain a 3D model of the patient's complete denture and compare its accuracy with the conventional methodology using computed tomography. STUDY DESIGN This prospective in-vitro study used 30 polyurethane pre-manufactured mandibles which were divided into two groups, conventional technique (group I) and a new method using intraoral scanner (group II), establishing the virtually planned position of the dental implants as a control group, considered as the gold standard for postoperative comparison. RESULTS The difference between these methods is close to zero and not statistically significant (p > 0.05), being heigh deviation (Xh) with p:0.130 and angulation difference of dental implants between the groups (Ang) with p:0.396. CONCLUSION The acquisition of stereolithography image of the prosthesis using an intraoral scanner has a clinically acceptable accuracy, being in agreement with the conventional method.
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Affiliation(s)
| | | | - Karine Laura Cortellazzi Mendes
- Department of Health Sciences and Children's Dentistry, Piracicaba Dental School, University of Campinas, UNICAMP, Piracicaba, SP, Brazil
| | - Alexander Tadeu Sverzut
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, UNICAMP, Piracicaba, SP, Brazil.
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Mittal S, Kaurani P, Goyal R. Comparison of accuracy between single posterior immediate and delayed implants placed using computer guided implant surgery and a digital laser printed surgical guide: A clinical investigation. J Prosthet Dent 2024:S0022-3913(23)00816-8. [PMID: 38218708 DOI: 10.1016/j.prosdent.2023.11.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 11/20/2023] [Accepted: 11/21/2023] [Indexed: 01/15/2024]
Abstract
STATEMENT OF PROBLEM The congruence of surgical implant placement with the preplanned position is important for anatomic and prosthetic precision, minimal complications, and increased longevity. The influence of implant placement timing on the surgical deviations in single posterior implants is unclear. PURPOSE The purpose of this clinical study was to compare deviations between preplanned and single posterior immediate and delayed implants placed using computer-guided digital light processing (DLP) surgical guides fabricated using intraoral scanning and cone beam computed tomography (CBCT). MATERIAL AND METHODS Implant surgery was performed on 24 participants requiring single immediate or delayed implants in the posterior maxillary and mandibular regions, for which the surgical site data were obtained from CBCT and intraoral scanning. Subsequently, virtual implant planning and DLP surgical guides were fabricated. Preimplant and postimplant placement CBCT scans were overlapped, and mean deviations for the immediate and delayed implant groups were calculated. The groups were compared with unpaired t tests (α=.05). RESULTS A total of 24 implants were placed, 12 in each group. In participants who received immediate implant placement, the mean ±standard deviation angular deviation, linear deviation at shoulder, linear deviation at apex, and vertical deviation were 1.03 ±0.70 degrees, 0.26 ±0.30 mm, 0.23 ±0.24 mm, and 0.39 ± 0.34 mm, respectively. In participants who received delayed implant treatment, the deviations were 0.53 ±0.60 degrees, 0.15 ±0.18 mm, 0.25 ±0.33 mm, and 0.17 ±0.10 mm, respectively. Significant differences between the 2 groups were found in the vertical deviation (P<.05). CONCLUSIONS The timing of the single posterior placement was associated with different deviations in the vertical direction. All deviations obtained were below the recommended values. DLP surgical guides fabricated from intraoral and CBCT scans provided accurate implant placement in immediate and delayed single posterior implants.
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Affiliation(s)
- Sankalp Mittal
- Head of Department, Department of Oral and Maxillofacial Surgery, Government Dental College and Hospital, Jaipur, India.
| | - Pragati Kaurani
- Professor, Department of Prosthodontics Crown and Bridge, Mahatma Gandhi Dental College and Hospital, Jaipur, India
| | - Ritika Goyal
- Postgraduate student, Department of Prosthodontics Crown and Bridge, Mahatma Gandhi Dental College and Hospital, Jaipur, India
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Verma N, Kamboj G, Lata J, Singh P, Gowda S. Cone Beam Computed Tomography-Based Evaluation of the Accuracy of Implant Surgery with Conventional (Free Hand) Implant Placement vs Computer Fabricated 3D Guide Implant Placement. J Maxillofac Oral Surg 2023; 22:1115-1122. [PMID: 38105824 PMCID: PMC10719224 DOI: 10.1007/s12663-023-01887-7] [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: 09/02/2022] [Accepted: 03/01/2023] [Indexed: 03/29/2023] Open
Abstract
Introduction Dental implants have been used in a variety of conventional technique-based forms for many years which had its own drawbacks. With the advent of cone beam CT, proper surgical and prosthetic planning is possible now a days. To achieve ideal implant placement, good prosthetic fabrication and overall successful prognosis computer fabricated guide aided surgery have been developed. Aim and Objective The aim of this study was to compare and evaluate the accuracy of implant placement in partially edentulous patients with conventional free hand technique and computer fabricated guide of implant placement by comparing pre- and post-CBCT data. Methods The present split mouth study design was conducted with forty sample size on twenty randomly selected patients who were treated with bilateral partially edentulous sites requiring dental implants. Patients were treated with both conventional (free hand) technique and computer fabricated 3D guide aided technique of implant placement. Comparison of accuracy of implant placement was done by comparing the pre- and postoperative CBCT data in terms of mean coronal deviation, mean apical deviation and mean angular deviation. Results and Conclusion The results showed that there is no statistically significant difference between mean coronal deviation, mean apical deviation and mean angular deviation of planned and placed implants in both conventional technique (free hand technique) and computer fabricated 3D guide aided implant placement technique. Hence, this study concluded that conventional technique of implant placement is equally efficient in comparison with computer fabricated guide aided surgery in terms of accuracy of implant placement.
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Affiliation(s)
- Nitin Verma
- Department of Oral and Maxillofacial Surgery, Punjab Government Dental College and Hospital, Amritsar, India
| | - Gurpreet Kamboj
- Department of Oral and Maxillofacial Surgery, Punjab Government Dental College and Hospital, Amritsar, India
| | - Jeevan Lata
- Department of Oral and Maxillofacial Surgery, Punjab Government Dental College and Hospital, Amritsar, India
| | - Pradeep Singh
- Department of Oral and Maxillofacial Surgery, Punjab Government Dental College and Hospital, Amritsar, India
| | - Sharad Gowda
- Department of Oral and Maxillofacial Surgery, Punjab Government Dental College and Hospital, Amritsar, India
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Chandran K R S, Goyal M, Mittal N, George JS. Accuracy of freehand versus guided immediate implant placement: A randomized controlled trial. J Dent 2023; 136:104620. [PMID: 37454788 DOI: 10.1016/j.jdent.2023.104620] [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: 05/24/2023] [Revised: 07/10/2023] [Accepted: 07/12/2023] [Indexed: 07/18/2023] Open
Abstract
PURPOSE This randomized controlled trial (RCT) aimed to compare the accuracy of immediate implant placement with freehand and static guided surgery. METHODS An RCT was conducted on 61 subjects who received a total of 80 dental implants. The enrolled patients were randomly allocated to two groups: freehand surgery (control group, n = 40 implants) and static guided surgery with R2Gate® (Megagen, Gyeongbuk, South Korea, test group, n = 40 implants). Crestal and apical deviations in both mesiodistal and buccolingual dimensions, as well as depth and angular deviations, were calculated by comparing the three-dimensional (3D) position of the implant in the planning software with the final implant position, revealed by an intraoral scan of the fixture after placement. The Mann-Whitney test was used for comparative assessment. RESULTS In the freehand group (control), crestal deviations of 1.13 ± 0.89 mm and 1.00 ± 0.76 mm were found in the mesiodistal and buccolingual directions, respectively, versus 0.34 ± 0.26 mm (p<0.001) and 0.37 ± 0.24 mm (p = 0.03) in the static guided surgery group (test). Apical deviation was also higher in the freehand group (control) than in the static guided surgery group (test) in the mesiodistal (4.04 ± 1.90 mm vs. 0.97 ± 0.55 mm, p = 0.04) and buccolingual directions (3.46 ± 1.82 mm vs. 0.94 ± 0.67 mm, p = 0.02). Freehand surgery had greater angular deviation (6.09° ± 3.23) compared to guided surgery (0.83° ± 0.53, p = 0.02). However, depth deviation was similar in the freehand surgery group (2.24 ± 1.58 mm) and static guided surgery group (0.66 ± 0.43, p = 0.09). CONCLUSIONS Immediate implant placement with static guided surgery demonstrated better accuracy than freehand surgery. STATEMENT OF CLINICAL RELEVANCE Guided implant surgery showed fewer deviations compared to freehand surgery in fresh extraction sockets; therefore, the use of static guides should be given preference over the freehand modality.
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Affiliation(s)
- Segin Chandran K R
- Santosh University, No.1, Santosh Nagar, Pratap Vihar, Ghaziabad, Uttar Pradesh 201009, India.
| | - Manoj Goyal
- Santosh University, No.1, Santosh Nagar, Pratap Vihar, Ghaziabad, Uttar Pradesh 201009, India
| | - Neeti Mittal
- Santosh University, No.1, Santosh Nagar, Pratap Vihar, Ghaziabad, Uttar Pradesh 201009, India
| | - Jensy Sara George
- The Tamil Nadu Dr MGR Medical University 69, Anna Salai, Rd, Guindy, Chennai, Tamil Nadu 600032, India
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Chen W, Al-Taezi KA, Chu CH, Shen Y, Wu J, Cai K, Chen P, Tang C. Accuracy of dental implant placement with a robotic system in partially edentulous patients: A prospective, single-arm clinical trial. Clin Oral Implants Res 2023. [PMID: 37167364 DOI: 10.1111/clr.14083] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 04/05/2023] [Accepted: 04/21/2023] [Indexed: 05/13/2023]
Abstract
OBJECTIVES This clinical study aimed to assess the accuracy of implant positions using a robotic system in partially edentulous patients. MATERIALS AND METHODS Twenty-eight partially edentulous patients received 31 implants using the robotic system. Deviations between the planned and placed implants were calculated after surgery. The deviations were compared with objective performance goals (OPGs) from reported studies of fully guided static computer-assisted implant surgery (CAIS) and dynamic CAIS. A multiple linear regression analysis was performed to investigate the possible effects of the type and side of the arch, implant location, and implant dimensions on the deviations. RESULTS The evaluation of 31 implants resulted in a mean angle deviation of 2.81 ± 1.13° (95% confidence interval (CI): 2.40-3.23°), while the 3D deviations at the implant shoulder and apex were 0.53 ± 0.23 mm (95% CI 0.45-0.62 mm) and 0.53 ± 0.24 mm (95% CI 0.44-0.61 mm), respectively. The upper limits of the 95% CI of 3D deviations were lower than those of the corresponding OPGs; however, the angle deviation was similar to that of the OPG. No statistically significant differences were found for the type and side of the arch, implant location, and implant dimensions to the deviations (p > .05). CONCLUSIONS The robotic system appears to achieve higher accuracy in implant positions than static and dynamic CAIS in partially edentulous patients (Chinese Clinical Trial Registry ChiCTR2300067587).
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Affiliation(s)
- Wei Chen
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
| | - Khulood Ali Al-Taezi
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
| | - Catherine Huihan Chu
- Department of Orthodontic, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Yue Shen
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
| | - Jin Wu
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
| | - Kunzhan Cai
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
| | - Peng Chen
- Hangzhou Lancet Robotics Company Ltd, Hangzhou, China
| | - Chunbo Tang
- Department of Oral Implantology, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
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Annamalai I, Bharathan K, Anbarasu P, Subramanian SK. Deflection of mini implants from its intended path of placement on varying bone densities. J Clin Exp Dent 2022; 14:e1000-e1007. [PMID: 36601239 PMCID: PMC9799994 DOI: 10.4317/jced.59903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 09/13/2022] [Indexed: 12/03/2022] Open
Abstract
Background Knowledge of bone density in maxilla and mandible will allow the clinician to plan the anchorage strategies and placement of implants with necessary precautions. The study aims to evaluate the deflection changes of titanium alloy self-drilling mini implants from the intended path that occurs during placement in varying bone densities. Material and Methods 63 titanium alloy self-drilling mini implants of the lengths 6mm, 8mm, and 10mm with diameter of 1.3mm were placed in three homogenous solid rigid polyurethane foam (saw bone) with bone densities of 20pcf, 30pcf, and 40pcf simulating anatomic sites in maxilla and mandible. 7mini implants of each length in all bone densities were tested for study. The implants were inserted perpendicularly into artificial bone block held in a custom made stand. The bone blocks were then radiographically exposed and the deviation of the long axis of the implantfrom a true vertical line was measured. Results There was a decrease in deflection of the mini implant with increase in density. On the other hand, increase in length resulted in increase in the amount of deflection. Conclusions Longer mini implants can be used in less dense bone as in maxilla, whereas shorter mini implants can be used in high dense bone as in mandible to increase the stability and success rate of implants. Bone density and implant length play a role in deflection of mini implant from its intended path of insertion. Key words:Orthodontic Mini implants, deflection, bone density, anchorage.
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Affiliation(s)
- Indra Annamalai
- Department of Orthodontics, Chettinad Dental College and Research Institute, Tamil Nadu, India
| | - Khaniya Bharathan
- Department of Orthodontics, RVS Dental College and Hospital, Tamil Nadu, India
| | - Prema Anbarasu
- Department of Orthodontics, Chettinad Dental College and Research Institute, Tamil Nadu, India
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Chandran S, Sers L, Picciocchi G, Luongo F, Lerner H, Engelschalk M, Omar S. Guided implant surgery with R2Gate®: A multicenter retrospective clinical study with 1 year of follow-up. J Dent 2022; 127:104349. [PMID: 36283626 DOI: 10.1016/j.jdent.2022.104349] [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: 09/23/2022] [Revised: 10/18/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022] Open
Abstract
PURPOSE To present the results obtained with a novel sleeveless and keyless guided implant surgery system. METHODS Inclusion criteria for this multicenter clinical retrospective study were fully or partially edentulous patients who had been treated with a sleeveless and keyless guided implant surgery system (R2Gate®, Megagen), and who had been rehabilitated with fixed restorations, with a minimum follow-up of 1 year. All surgeries and prosthetic procedures were conducted following the same protocol, and data were obtained from the patients' medical records. The outcomes were the fit and stability of the surgical guide, any intra-operative and immediate post-operative complications, any biologic and prosthetic complications that occurred during the 1-year follow-up period, implant survival, and prosthetic success. RESULTS Sixty patients were selected for the installation of 124 implants, through a guided procedure: 66 sleeveless, keyless surgical guides were manufactured. The incidence of immediate intra-operative (lack of space: 12.1%; lack of implant stability 2.6%) and immediate post-operative (pain and discomfort: 6.6%; mild swelling 3.3%) complications was low. In total, 112/124 implants (90.3%) were successfully placed with a guided procedure, in 52 patients; among them, 82 (73.2%) were placed with a flapless procedure. Thirty fixtures supported single crowns (SCs), 42 fixed partial dentures (FPDs) and 52 full-arch (FA) restorations. Sixty-two fixed prosthetic restorations (30 SCs, 22 FPDs and 10 FAs) were delivered; among these restorations, 15 (24.1%) were subjected to immediate functional loading. All implants (100%) survived. Two implants had peri‑implant mucositis (1.6%), two SCs had abutment screw loosenings (1.6%), two FAs and one FPD had ceramic chipping/fracture (2.4%), for an overall prosthetic success amounting to 88.7%. CONCLUSIONS Within the limits of this study, this novel guided surgery system appeared to be clinically reliable; further studies are needed to confirm these results. STATEMENT OF CLINICAL RELEVANCE The use of sleveless and keyless surgical guides can be clinically reliable and may be represent a valid option for the surgeon.
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Affiliation(s)
- Segin Chandran
- Research Fellow, Santosh University, No.1 Santosh Nagar, Pratap Vihar, Ghaziabad, Uttar Pradesh 201009, India
| | - Laurent Sers
- Private Practitioner, 54 Rue d'Antibes, Cannes 06400, France
| | - Guido Picciocchi
- Private Practitioner, via Brigata Liguria 3, Genova 16121, Italy
| | | | - Henriette Lerner
- Department of Oral, Maxillofacial and Plastic Surgery, Goethe University, Frankfurt, Germany
| | | | - Sam Omar
- Private Practitioner, OneDay Clinic, Shalz Mall, G2C4 2nd floor, El Sheikh Zayed City 7th District, Mogawra 2, Giza, Governorate 12593, Egypt; OneDay Digital Academy, Shalz Mall, G2C13 2nd Floor, El Sheikh Zayed City 7th District, Mogawra 2, Giza, Governorate 12593, Egypt.
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11
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Kumar Pandey A, Akkara F, Dhupar V. Efficacy of implant placement with surgical guides in the rehabilitation of the edentulous areas: An observational study and review of literature. ADVANCES IN ORAL AND MAXILLOFACIAL SURGERY 2022. [DOI: 10.1016/j.adoms.2022.100320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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12
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Tang Y, Zhang Y, Meng Z, Sun Q, Peng L, Zhang L, Lu W, Liang W, Chen G, Wei Y. Accuracy of additive manufacturing in stomatology. Front Bioeng Biotechnol 2022; 10:964651. [PMID: 36051587 PMCID: PMC9424550 DOI: 10.3389/fbioe.2022.964651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 06/29/2022] [Indexed: 11/13/2022] Open
Abstract
With the rapid development of the three-dimensional (3D) printing technology in recent decades, precise and personalized manufacturing has been achieved gradually, bringing benefit to biomedical application, especially stomatology clinical practice. So far, 3D printing has been widely applied to prosthodontics, orthodontics, and maxillofacial surgery procedures, realizing accurate, efficient operation processes and promising treatment outcomes. Although the printing accuracy has improved, further exploration is still needed. Herein, we summarized the various additive manufacturing techniques and their applications in dentistry while highlighting the importance of accuracy (precision and trueness).
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Affiliation(s)
- Yao Tang
- Department of Orthodontics, Cranial Facial Growth and Development Center, Peking University School and Hospital of Stomatology, Beijing, China
- NMPA Key Laboratory for Dental Materials, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing, China
| | - Yunfan Zhang
- Department of Orthodontics, Cranial Facial Growth and Development Center, Peking University School and Hospital of Stomatology, Beijing, China
- NMPA Key Laboratory for Dental Materials, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing, China
| | - Zhaoqiang Meng
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Qiannan Sun
- Department of Orthodontics, Cranial Facial Growth and Development Center, Peking University School and Hospital of Stomatology, Beijing, China
- NMPA Key Laboratory for Dental Materials, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing, China
| | - Liying Peng
- Department of Orthodontics, Cranial Facial Growth and Development Center, Peking University School and Hospital of Stomatology, Beijing, China
- NMPA Key Laboratory for Dental Materials, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing, China
| | - Lingyun Zhang
- Department of Orthodontics, Cranial Facial Growth and Development Center, Peking University School and Hospital of Stomatology, Beijing, China
- NMPA Key Laboratory for Dental Materials, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing, China
| | - Wenhsuan Lu
- Department of Orthodontics, Cranial Facial Growth and Development Center, Peking University School and Hospital of Stomatology, Beijing, China
- NMPA Key Laboratory for Dental Materials, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing, China
| | - Wei Liang
- Department of Orthodontics, Cranial Facial Growth and Development Center, Peking University School and Hospital of Stomatology, Beijing, China
- NMPA Key Laboratory for Dental Materials, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing, China
- *Correspondence: Wei Liang, ; Gui Chen, ; Yan Wei,
| | - Gui Chen
- Department of Orthodontics, Cranial Facial Growth and Development Center, Peking University School and Hospital of Stomatology, Beijing, China
- NMPA Key Laboratory for Dental Materials, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing, China
- *Correspondence: Wei Liang, ; Gui Chen, ; Yan Wei,
| | - Yan Wei
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
- *Correspondence: Wei Liang, ; Gui Chen, ; Yan Wei,
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13
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Li J, Meneghetti PC, Galli M, Mendonca G, Chen Z, Wang HL. Open-sleeve templates for computer-assisted implant surgery at healed or extraction sockets: An in vitro comparison to closed-sleeve guided system and free-hand approach. Clin Oral Implants Res 2022; 33:757-767. [PMID: 35578783 DOI: 10.1111/clr.13957] [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: 05/05/2021] [Revised: 11/09/2021] [Accepted: 01/30/2022] [Indexed: 11/30/2022]
Abstract
OBJECTIVE A buccal opening guide provides better view and better irrigation. The aim of this study was to investigate the accuracy of this open-sleeve system. MATERIAL AND METHODS Thirty duplicated maxillary models, each with 6 extraction sockets and 4 healed sites, were used. Based on the same digital plan, three modalities, sCAIS with open-sleeves, closed-sleeves, and free-hand approach, were used to place implants. The global, horizontal, depth, and angular deviations between the virtual and actual implant positions were measured. RESULTS Both sCAIS groups exhibited better accuracy than the free-hand group in two clinical scenarios. At healed sites, the closed-sleeve group showed a significantly fewer error than the open-sleeve group in global apical (0.68 ± 0.33 vs. 0.96 ± 0.49 mm), horizontal coronal (0.28±0.15 vs. 0.44±0.25 mm), horizontal apical (0.64±0.32 vs. 0.94±0.48 mm), and angular deviations (1.83 ± 0.95 vs. 2.86 ± 1.46°). For extraction sockets, the open-sleeve group exhibited fewer deviations than the closed-sleeve group in terms of global (coronal: 0.77 ± 0.29 vs. 0.91 ±0.22 mm; apical: 1.08 ± 0.49 vs. 1.37 ±0.52 mm), and horizontal (coronal: 0.60±0.24 vs. 0.86±0.20 mm; apical: 0.95±0.50 vs. 1.32±0.51mm) deviations. However, the closed-sleeve group was more accurate in the depth control (0.26 ± 0.20 vs. 0.40 ± 0.31 mm). CONCLUSION In this in vitro investigation, open-sleeve sCAIS proved better accuracy than free-hand surgery for both delayed and immediate implant placement. Compared with a closed-sleeve sCAIS system, open-sleeve have the potential of providing better outcomes in extraction sockets but not in healed sites.
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Affiliation(s)
- Junying Li
- Department of Biologic and Materials Sciences, Division of Prosthodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Priscila Ceolin Meneghetti
- Department of Biologic and Materials Sciences, Division of Prosthodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA.,Department of Restorative Dentistry, Pontifical University Catholic of Rio Grande do Sul, Porto Alegre, Brazil
| | - Matthew Galli
- Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Gustavo Mendonca
- Department of Biologic and Materials Sciences, Division of Prosthodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Zhaozhao Chen
- Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Hom-Lay Wang
- Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
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Thangwarawut P, Amornvit P, Rokaya D, Kiattavorncharoen S. Comparison of Different Types of Static Computer-Guided Implant Surgery in Varying Bone Inclinations. MATERIALS (BASEL, SWITZERLAND) 2022; 15:3004. [PMID: 35591339 PMCID: PMC9103329 DOI: 10.3390/ma15093004] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/06/2022] [Accepted: 04/07/2022] [Indexed: 12/10/2022]
Abstract
This research aimed to compare the accuracy of dental implant placement among three types of surgical guide: metal sleeve with key handle (Nobel guide, Nobel Biocare, Göteborg, Sweden), metal sleeve without key handle, and non-sleeve without key handle (Dentium full guide kit, Dentium Co., Seoul, Korea) when placing the implant in different bone inclinations. A total of 72 polyurethane bone models were fabricated in different inclinations (0°, 45°, and 60°). The dental implants were placed in bone models following the company’s recommendations. After dental implants were installed, the digital scans were done by an extraoral scanner. The deviations of the dental implant position were evaluated by superimposition between post-implant placement and reference model by using GOM inspect software. The deviation measurement was shown in 5 parameters: angular deviation, 3D deviation at the crest, 3D deviation at the apex, lateral linear deviation, and vertical linear deviation. The data were analyzed using One-way ANOVA and post-hoc tests at a significance level of 0.05. The accuracy of the dental implant position was not significantly influenced by the difference in the surgical guide system (p > 0.05). There were significant differences between placed and planned implant positions in the different inclinations of the bone. A significant difference was found in all parameters of 0° and 60° bone inclinations (p < 0.05). At 0° and 45°, angulated bone showed significant differences except in 3D deviation at the apex. Between 45° and 60° were significant differences only in angular deviation. Within the limitations of this study, the accuracy of implant placement among three types of surgical guides (Non-sleeve without key handle, Metal sleeve without key handle, and Metal sleeve with key handle) from two companies (Dentium and Nobel Biocare) was similar. Hence, the operators can choose the surgical guide system according to their preference. The inclination of bone can influence the angulation of dental implants.
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Affiliation(s)
- Pisut Thangwarawut
- Education Program in Implant Dentistry, Mahidol University, Bangkok 10400, Thailand;
| | | | - Dinesh Rokaya
- Department of Clinical Dentistry, Walailak University International College of Dentistry, Walailak University, Bangkok 10400, Thailand;
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15
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Li-Rodríguez JK, Díaz-Durany M, Romeo-Rubio M, Paz Salido M, Pradíes G. Accuracy of a guided implant system with milled surgical templates. J Oral Sci 2022; 64:145-150. [PMID: 35321962 DOI: 10.2334/josnusd.21-0361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
PURPOSE This in vitro study analyzed the accuracy of a computer-assisted design (CAD)/computer-assisted manufacturing (CAM) guided implant surgery system by comparing linear, angular, and coronal deviations between the planned and final implant placement. METHODS By using a fully guided surgery workflow, 32 dental implants were placed in 16 partially edentulous models. After virtual design of the restorations, radiological and CAD files were matched and implant positions were planned by using dedicated implant planning software (Galileo Implant version 1.9.2.). Templates were designed (Cerec Omnicam) and milled (Cerec MC XL) by using chairside workflow. Galileo Implant version 1.9.2. was used to evaluate accuracy. RESULTS Mean horizontal and angular-coronal total deviation values were 0.2 mm (SD = 0.126) and 1.1º (SD = 0.834) respectively. Multivariate analysis of variance showed significant differences in horizontal and angular-coronal total deviation in the 32 implants (P = 0.0001). Multivariate analysis with one-factor interaction showed no statistical difference in implant position or implant type (P = 0.139) between eight maxilla models and eight jaw models. CONCLUSION Horizontal and angular-coronal deviations of implants placed with chairside digital workflow were within the recommended safety margin for fully guided surgery.
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Affiliation(s)
- Jeanette K Li-Rodríguez
- Department of Conservative Dentistry and Buccofacial Prostheses, Complutense of Madrid University
| | | | - Marta Romeo-Rubio
- Department of Conservative Dentistry and Buccofacial Prostheses, Complutense of Madrid University
| | - María Paz Salido
- Department of Conservative Dentistry and Buccofacial Prostheses, Complutense of Madrid University
| | - Guillermo Pradíes
- Department of Conservative Dentistry and Buccofacial Prostheses, Complutense of Madrid University
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16
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Devadason ND, S S, S R. Digitally designed guided implant surgery in deficient maxillary ridges: Case reports. JOURNAL OF ADVANCED PERIODONTOLOGY & IMPLANT DENTISTRY 2022; 14:38-45. [PMID: 35919447 PMCID: PMC9339721 DOI: 10.34172/japid.2022.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 02/08/2022] [Indexed: 11/09/2022]
Abstract
Periodontitis can lead to the loss of hard and soft tissues of the oral cavity. Dental implants have become a reliable treatment modality in recent times, especially with the evolution of digital technology such as CBCT, implant planning software, computer-assisted manufacturing, and guided implant surgery. Documentation of such advancements and their clinical implications would add to the existing knowledge on implant dentistry, encouraging dentists to approach complex implant surgeries confidently. This paper discusses the rehabilitation of missing teeth by applying computer-assisted guided implant placement in two cases with deficient bone volume anteriorly and posteriorly in the maxilla, respectively. Digital planning and careful execution have resulted in precise implant placement and complete osseointegration. In these cases, we could devise treatment plans with both anatomical and prosthetic considerations while being minimally invasive and more predictable, with shorter treatment time and greater patient comfort.
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Affiliation(s)
- Neethi Deborah Devadason
- Department of Periodontology and Implantology, Rajah Muthiah Dental College and Hospital, Annamalai University, Chidambaram- 608002, Tamil Nadu, India
| | - Senthilkumar S
- Department of Periodontology and Implantology, Rajah Muthiah Dental College and Hospital, Annamalai University, Chidambaram- 608002, Tamil Nadu, India
| | - Rajasekar S
- Department of Periodontology and Implantology, Rajah Muthiah Dental College and Hospital, Annamalai University, Chidambaram- 608002, Tamil Nadu, India
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17
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Türker H, Aksoy B, Özsoy K. Fabrication of Customized dental guide by stereolithography method and evaluation of dimensional accuracy with artificial neural networks. J Mech Behav Biomed Mater 2022; 126:105071. [PMID: 34998070 DOI: 10.1016/j.jmbbm.2021.105071] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 12/26/2021] [Accepted: 12/29/2021] [Indexed: 10/19/2022]
Abstract
The present study was investigated the production dental guides by using additive manufacturing stereolithography (SLA) technology, and the dimensional aperture values of the dental guides for dental implant treatment using artificial intelligence technology. The aim of this study is to benefit from artificial neural networks (ANNs) to classify the results obtained from the new production freedom of SLA by changing the existing design concept of dental guides. In the study, the Three Dimensional (3D) anatomical model was designed by using Mimics programme the data obtained from the Cone Beam Computed Tomography (CBCT) images of the patient. Three different dental guide designs were performed using the 3-Matic programme for dental implant treatment on the obtained 3D anatomical model. Dental guide designs and mandible model were produced with a SLA 3D printer, and a data set was created using a 3D scanner. The dimensional aperture values were obtained by performing the 3D registration process between the mandible and dental guides. The data set was analyzed both statistically with Jamovi 2.0.0 software and ANNs. The results showed that the minimum and maximum aperture values obtained from the dental guides were very close to each other, indicating that the guides were compatible with the mandible bone. The statistical results showed that the dimensional aperture values decrease in proportion to the values with minimum arithmetic mean value in the data set, and it was determined that the dental guide-3 was the most suitable model for the mandible. When all test data in the confusion matrix obtained from ten different aritificial neural network models created using ANNs were examined, it was been seen that ANN model-5 was the most successful model with an accuracy rate of 99%.
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Affiliation(s)
- Hasan Türker
- Department of Mechatronics Engineering, Faculty of Technology, Isparta University of Applied Sciences, Isparta, 32100, Turkey
| | - Bekir Aksoy
- Department of Mechatronics Engineering, Faculty of Technology, Isparta University of Applied Sciences, Isparta, 32100, Turkey
| | - Koray Özsoy
- Department of Machine and Metal Technology, Isparta OSB Vocational School, Isparta University of Applied Sciences, Isparta, 32400, Turkey.
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Huang L, Zhang X, Mo A. A Retrospective Study on the Transferring Accuracy of a Fully Guided Digital Template in the Anterior Zone. MATERIALS 2021; 14:ma14164631. [PMID: 34443154 PMCID: PMC8399113 DOI: 10.3390/ma14164631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/27/2021] [Accepted: 08/09/2021] [Indexed: 02/05/2023]
Abstract
The accuracy of implant placement with a fully guided digital template can be influenced by many factors, such as arch difference, alveolar bone density, timing of implant placement and open flap. The purpose of this article was to evaluate the factors presumptively affecting the accuracy of implant placement assisted by the fully guided template in the anterior zone. In 40 patients with missing anterior teeth, a total of 52 implants were placed with tooth-borne, fully guided templates after CBCT evaluation, in West China Hospital of Stomatology, Sichuan University. After overlapping the pre-and post-operative DICOM data, measurements were taken in the dental implant planning software (Nobel Clinician®) to calculate linear and angular deviations between virtual placement plan and actual implant placement. Grouping was categorized according to three factors that possibly have an influence on accuracy: arch type (maxilla/mandible), timing of implant placement (immediate/delayed), surgical technique (open flap/flapless). The data was analyzed with independent sample t-test (p < 0.05). The results showed that the apical, coronal, depth and angular mean deviations of implant positions in anterior zone were 1.13 ± 0.39 mm, 0.86 ± 0.33 mm, 0.41 ± 0.66 mm, 3.32 ± 1.65° with the fully guided templates. The accuracy at apex level, coronal level and the angulation were similar between the maxilla and mandible, and the magnitude of all four deviations between immediate and delayed implantation, open flap and flapless technique were small. No statistically significant difference was observed (p > 0.05). Whereas there was significant difference in depth deviation between maxilla and mandible (p < 0.05). Conclusively, the implant site, alveolar bone density, timing of implant placement and surgical techniques merely compromise the implant placement accuracy under the assistance of a fully guided template.
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Cristache CM, Burlibasa M, Tudor I, Totu EE, Di Francesco F, Moraru L. Accuracy, Labor-Time and Patient-Reported Outcomes with Partially versus Fully Digital Workflow for Flapless Guided Dental Implants Insertion-A Randomized Clinical Trial with One-Year Follow-Up. J Clin Med 2021; 10:1102. [PMID: 33800946 PMCID: PMC7961841 DOI: 10.3390/jcm10051102] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 02/27/2021] [Accepted: 02/28/2021] [Indexed: 12/22/2022] Open
Abstract
(1) Background: Prosthetically-driven implant positioning is a prerequisite for long-term successful treatment. Transferring the planned implant position information to the clinical setting could be done using either static or dynamic guided techniques. The 3D model of the bone and surrounding structures is obtained via cone beam computed tomography (CBCT) and the patient's oral condition can be acquired conventionally and then digitalized using a desktop scanner, partially digital workflow (PDW) or digitally with the aid of an intraoral scanner (FDW). The aim of the present randomized clinical trial (RCT) was to compare the accuracy of flapless dental implants insertion in partially edentulous patients with a static surgical template obtained through PDW and FDW. Patient outcome and time spent from data collection to template manufacturing were also compared. (2) Methods: 66 partially edentulous sites (at 49 patients) were randomly assigned to a PDW or FDW for guided implant insertion. Planned and placed implants position were compared by assessing four deviation parameters: 3D error at the entry point, 3D error at the apex, angular deviation, and vertical deviation at entry point. (3) Results: A total of 111 implants were inserted. No implant loss during osseointegration or mechanical and technical complications occurred during the first-year post-implants loading. The mean error at the entry point was 0.44 mm (FDW) and 0.85 (PDW), p ≤ 0.00; at implant apex, 1.03 (FDW) and 1.48 (PDW), p ≤ 0.00; the mean angular deviation, 2.12° (FDW) and 2.48° (PDW), p = 0.03 and the mean depth deviation, 0.45 mm (FDW) and 0.68 mm (PDW), p ≤ 0.00; (4) Conclusions: Despite the statistically significant differences between the groups, and in the limits of the present study, full digital workflow as well as partially digital workflow are predictable methods for accurate prosthetically driven guided implants insertion.
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Affiliation(s)
- Corina Marilena Cristache
- Department of Dental Techniques, Faculty of Midwifery and Medical Assisting (FMAM), “Carol Davila” University of Medicine and Pharmacy, 8 Eroilor Sanitari Blvd, 050474 Bucharest, Romania; (M.B.); (I.T.)
| | - Mihai Burlibasa
- Department of Dental Techniques, Faculty of Midwifery and Medical Assisting (FMAM), “Carol Davila” University of Medicine and Pharmacy, 8 Eroilor Sanitari Blvd, 050474 Bucharest, Romania; (M.B.); (I.T.)
| | - Ioana Tudor
- Department of Dental Techniques, Faculty of Midwifery and Medical Assisting (FMAM), “Carol Davila” University of Medicine and Pharmacy, 8 Eroilor Sanitari Blvd, 050474 Bucharest, Romania; (M.B.); (I.T.)
- Smart Biomaterials and Applications Master Program, Faculty of Medical Engineering, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania
| | - Eugenia Eftimie Totu
- Department of Analytical Chemistry, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Polizu St., Sector 1, 011061 Bucharest, Romania
| | - Fabrizio Di Francesco
- Multidisciplinary Department of Medical, Surgical and Oral Sciences, Campania University Luigi Vanvitelli (ex Second University of Naples), 6 Via Luigi De Crecchio, 80138 Napoli, Italy;
| | - Liliana Moraru
- Faculty of Dental Medicine, “Titu Maiorescu” University, 67A Gheorghe Petrascu Street, 040051 Bucharest, Romania;
- Oral and Maxillofacial Surgery Department, “Carol Davila” Central Military Emergency Hospital, 134 Plevnei Ave., 010825 Bucharest, Romania
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Putra RH, Yoda N, Astuti ER, Sasaki K. The accuracy of implant placement with computer-guided surgery in partially edentulous patients and possible influencing factors: A systematic review and meta-analysis. J Prosthodont Res 2021; 66:29-39. [PMID: 33504723 DOI: 10.2186/jpr.jpr_d_20_00184] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
PURPOSE To review the current clinical studies regarding the accuracy of implant computer-guided surgery in partially edentulous patients and investigate potential influencing factors. STUDY SELECTION Electronic searches on the PubMed and Cochrane Central Register of Controlled Trials databases, and subsequent manual searches were performed. Two reviewers selected the studies following our inclusion and exclusion criteria. Qualitative review and meta-analysis of the implant placement accuracy were performed to analyze potential influencing factors. Angular deviation, coronal deviation, apical deviation, and depth deviation were evaluated as the accuracy outcomes. RESULTS Eighteen studies were included in this systematic review, including six randomized controlled trials, nine prospective studies, and three retrospective clinical studies. A total of 1317 implants placed in 642 partially edentulous patients were reviewed. Eight studies were evaluated using meta-analysis. Fully guided surgery showed statistically higher accuracy in angular (P <0.001), coronal (P <0.001), and apical deviation (P <0.05) compared with pilot-drill guided surgery. A statistically significant difference (P <0.001) was also observed in coronal deviation between the bounded edentulous (BES) and distal extension spaces (DES). A significantly lower angular deviation (P <0.001) was found in implants placed using computer-aided design/computer-aided manufacturing (CAD/CAM) compared to the conventional surgical guides. CONCLUSIONS The edentulous space type, surgical guide manufacturing procedure, and guided surgery protocol can influence the accuracy of computer-guided surgery in partially edentulous patients. Higher accuracy was found when the implants were placed in BES, with CAD/CAM manufactured surgical guides, using a fully guided surgery protocol.
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Affiliation(s)
- Ramadhan Hardani Putra
- Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry.,Department of Dentomaxillofacial Radiology, Faculty of Dental Medicine, Universitas Airlangga
| | - Nobuhiro Yoda
- Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry
| | - Eha Renwi Astuti
- Department of Dentomaxillofacial Radiology, Faculty of Dental Medicine, Universitas Airlangga
| | - Keiichi Sasaki
- Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry
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21
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Siqueira R, Chen Z, Galli M, Saleh I, Wang HL, Chan HL. Does a fully digital workflow improve the accuracy of computer-assisted implant surgery in partially edentulous patients? A systematic review of clinical trials. Clin Implant Dent Relat Res 2020; 22:660-671. [PMID: 32964614 DOI: 10.1111/cid.12937] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/24/2020] [Accepted: 06/25/2020] [Indexed: 12/31/2022]
Abstract
BACKGROUND Accurate implant placement is essential in reducing post-treatment complications and in ensuring a successful treatment outcome. PURPOSE To compare the accuracy of fully-guided static computer-assisted implant surgery (s-CAIS) using partially- and fully-digital workflows. MATERIALS AND METHODS Electronic and manual literature searches were performed to collect evidence concerning the accuracy of fully-guided s-CAIS procedures utilizing tooth-supported guides. Quantitative analysis was conducted to evaluate the accuracy of partially- and fully-digital workflows, and survival rates and complications were qualitatively analyzed. RESULTS Thirteen studies, including 6 randomized controlled trials and 7 prospective clinical studies, were selected for quantitative and qualitative synthesis. A total of 669 implants in 325 patients using s-CAIS were available for review. Meta-analysis of the accuracy revealed a total mean angular deviation of 2.68° (95% CI: 2.32°-3.03°); mean global coronal deviation of 1.03 mm (95% CI: 0.88-1.18 mm); mean global apical deviation of 1.33 mm (95% CI: 1.17-1.50 mm); and mean depth deviation of 0.59 mm (95% CI: 0.46-0.70 mm). Minimal differences were found between the two different workflows. Few complications were reported, and survival rates were between 97.8% to 100% (range of follow-up: 12 to 24 months) in the available studies. CONCLUSION Similar accuracy is obtained when implants are placed in partially edentulous patients using fully-guided s-CAIS, independently of the workflow utilized.
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Affiliation(s)
- Rafael Siqueira
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, Michigan, USA
| | - Zhaozhao Chen
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, Michigan, USA
| | - Matthew Galli
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, Michigan, USA
| | - Islam Saleh
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, Michigan, USA
| | - Hom-Lay Wang
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, Michigan, USA
| | - Hsun-Liang Chan
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, Michigan, USA
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22
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Talmazov G, Bencharit S, Waldrop TC, Ammoun R. Accuracy of Implant Placement Position Using Nondental Open-Source Software: An In Vitro Study. J Prosthodont 2020; 29:604-610. [PMID: 32495453 DOI: 10.1111/jopr.13208] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 05/29/2020] [Accepted: 05/31/2020] [Indexed: 12/01/2022] Open
Abstract
PURPOSE To evaluate the accuracy of implant placement position using two different dental implant planning software. MATERIALS AND METHODS A set of Digital Imaging and Communications in Medicine (DICOM) files from a cone beam computed tomography of a patient missing maxillary right first premolar was used. Implant planning was done using two open-source programs: A nondental 3D Slicer/Blender (3DSB) software and a commercial dental implant treatment planning program: Blue Sky Plan 4 (BSP4). An intraoral scan of the same patient was used to create a standard tessellation language (STL) file of the maxillary arch and later printed into 20 identical casts. Ten surgical guides were printed for each group as well. A dental implant (3.8 mm × 12 mm, Biohorizons) was placed into each cast using fully guided surgical protocol. The horizontal displacements at the implant cervical platform and at the implant apex as well as the angulation displacements were measured using digital scanning of the implant scan bodies and were analyzed using a 3D compare software. Statistical analyses were conducted (⍺ = 0.05) using t-test and F-test to examine differences in trueness and precision, respectively. RESULTS The average horizontal deviations for the platform and the apex, respectively, were 0.33 ± 0.12 mm and 0.76 ± 0.30 mm for 3DSB and 0.44 ± 0.21 mm and 0.98 ± 0.48 mm for BSP4. The average angulation deviations for 3DSB and BSB4 were 2.34 ± 0.93° and 3.07 ± 1.57°, respectively. There were no statistical differences in the means (t-test) of the platform, apex, and angulation deviations (p = 0.16, p = 0.19, and p = 0.18, respectively). There were statistical differences in the variances (F test) of the platform (p = 0.043) and angulation (p = 0.049) deviations but not the apex (p = 0.059) deviations. CONCLUSIONS The combination of nondental open-source software, 3D Slicer/Blender can be used to plan implant guided surgery with an accuracy similar to commercial dental software with slightly higher precision. Open-source nondental software can be considered as an alternative in dental implant treatment planning and guided surgery.
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Affiliation(s)
- Georgi Talmazov
- Department of General Practice, School of Dentistry, Virginia Commonwealth University, Richmond, VA
| | - Sompop Bencharit
- Department of General Practice, School of Dentistry, Virginia Commonwealth University, Richmond, VA.,Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA.,Department of Oral & Maxillofacial Surgery, School of Dentistry Commonwealth University, Richmond, VA
| | | | - Rami Ammoun
- Department of Prosthodontics, School of Dentistry, Virginia Commonwealth University, Richmond, VA
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23
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Wang XH, Liu AP, Deng WZ. [Research advances in the use of digital surgical guides in implantology]. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2020; 38:95-100. [PMID: 32037774 DOI: 10.7518/hxkq.2020.01.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dental implants have become the main choice for patients to fill in their missing teeth. A precise placement is the basis for a functional and aesthetic restoration. A digital surgical guide is a carrier that transfers the preoperative plan of dental implants to the actual surgery. This paper provides some references that can help clinicians improve the accuracy of implant surgery by stating the development, classification, advantages and disadvantages, and factors that affect the accuracy of digital guides.
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Affiliation(s)
- Xiao-Hua Wang
- Dept. of Stomatology, Wuzhou Red Cross Hospital, Wuzhou 543000, China;School of Stomatology, Youjiang Medical University for Nationalities, Baise 533000, China
| | - Ai-Peng Liu
- Dept. of Stomatology, Wuzhou Red Cross Hospital, Wuzhou 543000, China
| | - Wen-Zheng Deng
- Dept. of Stomatology, Wuzhou Red Cross Hospital, Wuzhou 543000, China
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24
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Magrin GL, Rafael SNF, Passoni BB, Magini RS, Benfatti CAM, Gruber R, Peruzzo DC. Clinical and tomographic comparison of dental implants placed by guided virtual surgery versus conventional technique: A split‐mouth randomized clinical trial. J Clin Periodontol 2019; 47:120-128. [DOI: 10.1111/jcpe.13211] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 09/23/2019] [Accepted: 10/16/2019] [Indexed: 12/29/2022]
Affiliation(s)
- Gabriel L. Magrin
- Department of Dentistry Center of Education and Research on Dental Implants Federal University of Santa Catarina / UFSC Florianopolis Brazil
- Department of Oral Biology Dental School of the Medical University of Vienna Vienna Austria
| | | | - Bernardo B. Passoni
- Department of Dentistry Center of Education and Research on Dental Implants Federal University of Santa Catarina / UFSC Florianopolis Brazil
| | - Ricardo S. Magini
- Department of Dentistry Center of Education and Research on Dental Implants Federal University of Santa Catarina / UFSC Florianopolis Brazil
| | - Cesar A. M. Benfatti
- Department of Dentistry Center of Education and Research on Dental Implants Federal University of Santa Catarina / UFSC Florianopolis Brazil
| | - Reinhard Gruber
- Department of Oral Biology Dental School of the Medical University of Vienna Vienna Austria
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Li J, Chen Z, Chan H, Sinjab K, Yu H, Wang H. Does flap opening or not influence the accuracy of semi‐guided implant placement in partially edentulous sites? Clin Implant Dent Relat Res 2019; 21:1253-1261. [PMID: 31642588 DOI: 10.1111/cid.12847] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 08/04/2019] [Accepted: 09/07/2019] [Indexed: 02/05/2023]
Affiliation(s)
- Junying Li
- Department of Periodontics and Oral MedicineUniversity of Michigan School of Dentistry Ann Arbor Michigan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, Department of Prosthodontics, West China Hospital of StomatologySichuan University Chengdu People's Republic of China
| | - Zhaozhao Chen
- Department of Periodontics and Oral MedicineUniversity of Michigan School of Dentistry Ann Arbor Michigan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, Department of Prosthodontics, West China Hospital of StomatologySichuan University Chengdu People's Republic of China
| | - Hsun‐Liang Chan
- Department of Periodontics and Oral MedicineUniversity of Michigan School of Dentistry Ann Arbor Michigan
| | - Khaled Sinjab
- Department of Periodontics and Oral MedicineUniversity of Michigan School of Dentistry Ann Arbor Michigan
| | - Haiyang Yu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, Department of Prosthodontics, West China Hospital of StomatologySichuan University Chengdu People's Republic of China
| | - Hom‐Lay Wang
- Department of Periodontics and Oral MedicineUniversity of Michigan School of Dentistry Ann Arbor Michigan
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Lee JD, Jung S, Wang CW, Lee SJ. Integrated Digital and Conventional Treatment Workflow in Guided Complete Mouth Implant Rehabilitation: A Clinical Case Report. Dent J (Basel) 2019; 7:dj7040100. [PMID: 31581562 PMCID: PMC6960980 DOI: 10.3390/dj7040100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 09/23/2019] [Accepted: 09/24/2019] [Indexed: 12/11/2022] Open
Abstract
Clinical Implications The integration of both conventional and digital techniques in the treatment workflow can have a synergistic effect that facilitates the treatment of complex complete mouth prosthetic rehabilitations. Abstract The introduction of digital dentistry and CAD/CAM technology has redefined treatment concepts in implant dentistry—computer guided implant placement has become routine practice, and CAD/CAM prostheses are now commonplace. These advances in treatment options and modalities has led to a paradigm shift in the workflow of surgical and restorative treatments. This case report presents a customized staged treatment protocol that involves the strategic retention of teeth to serve as transitional abutments, which will support a computer guided implant surgical guide as well as a fixed interim prosthesis. The treatment protocol also describes an integrated digital and conventional workflow for full mouth implant-supported fixed prosthetic rehabilitations to provide improved patient care with more predictable outcomes and fewer complications.
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Affiliation(s)
- Jason D. Lee
- Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, MA 02115, USA; (J.D.L.); (S.J.)
| | - Soomin Jung
- Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, MA 02115, USA; (J.D.L.); (S.J.)
- Department of Health Policy and Management, Seoul National University College of Medicine, Seoul 08826, Korea
| | - Chin-Wei Wang
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA 02115, USA;
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
| | - Sang J. Lee
- Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, MA 02115, USA; (J.D.L.); (S.J.)
- Correspondence: ; Tel.: +1-617-432-3064
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27
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Accuracy of surgical guides from 2 different desktop 3D printers for computed tomography-guided surgery. J Prosthet Dent 2019; 121:498-503. [DOI: 10.1016/j.prosdent.2018.08.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 08/21/2018] [Accepted: 08/21/2018] [Indexed: 11/18/2022]
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28
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Methods Used to Assess the 3D Accuracy of Dental Implant Positions in Computer-Guided Implant Placement: A Review. J Clin Med 2019; 8:jcm8010054. [PMID: 30621034 PMCID: PMC6352035 DOI: 10.3390/jcm8010054] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 12/13/2018] [Accepted: 12/14/2018] [Indexed: 11/17/2022] Open
Abstract
The purpose of this review is to examine various assessment methods in order to compare the accuracy between the virtually planned and clinically achieved implant positions. In this review, comparison methods using pre- and post-operative computed topography (CT) data and digital impressions for definitive prosthesis will be described. The method for the displacement and strain for quantification of the error will also be explored. The difference between the planned and the actual implant placement position in guided implant surgery is expressed as an error. Assessing the accuracy of implant-guided surgery can play an important role as positive feedback in order to reduce errors. All of the assessment methods have their own inevitable errors and require careful interpretation in evaluation.
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29
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Accuracy of computer-guided implant placement in anterior regions. J Prosthet Dent 2018; 121:836-842. [PMID: 30598309 DOI: 10.1016/j.prosdent.2018.07.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 07/18/2018] [Accepted: 07/18/2018] [Indexed: 11/20/2022]
Abstract
STATEMENT OF PROBLEM Implant placement in the anterior regions is often challenging because of limited space and bone volume availability. PURPOSE The purpose of this clinical study was to investigate the accuracy of computer-guided surgery with a long drill key to place implants in the anterior regions. MATERIAL AND METHODS Computer-guided implant surgery was performed for 32 participants requiring implants in anterior regions. The procedure involved using a 12-mm-long drill key to guide the 2.0-mm-diameter drill. Deviations between the planned and actual implant positions were evaluated by using cone beam computed tomography (CBCT) scans obtained before and after surgery. A t test was used for comparisons between the planned and placed implants and to determine the influence of the arch (maxilla/mandible) and time (immediate/delayed) on accuracy. RESULTS A total of 40 implants (20 implants in the maxilla and 20 implants in the mandible) were placed. The mean linear deviation was 0.46 mm (range, 0 to 1.15 mm) for the implant shoulder and 0.67 mm (range, 0.14 to 1.19 mm) for the implant apex. The mean angular deviation was 1.40 degrees (range, 0.30 to 2.57 degrees). The mean depth deviation was 0.15 mm (range, 0.10 to 0.82 mm). CONCLUSIONS This clinical study showed that the accuracy of computer-guided implant placement may be enhanced by using a long drill key and may thus enable more accurate implant placement in anterior regions.
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30
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Wang W, Yu H, Liu Y, Jiang X, Gao B. Trueness analysis of zirconia crowns fabricated with 3-dimensional printing. J Prosthet Dent 2018; 121:285-291. [PMID: 30017167 DOI: 10.1016/j.prosdent.2018.04.012] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 04/19/2018] [Accepted: 04/19/2018] [Indexed: 11/16/2022]
Abstract
STATEMENT OF PROBLEM The primary manufacturing method of zirconia ceramic crowns is computer-aided design and computer-aided manufacture (CAD-CAM), but a disadvantage of this technique is material waste. Three-dimensional (3D) printing, which has been recently introduced into dentistry, has improved the processing of polymers and metals, but not yet of ceramic crowns. PURPOSE The purpose of this in vitro study was to evaluate the 3D trueness of zirconia crowns fabricated by 3D printing to investigate the potential application of this technology in dental ceramic restorations. MATERIAL AND METHODS A typodont tooth was prepared for a ceramic crown, and a digital crown was designed using the CAD software. The digital crown was processed either with a 3D-printing system or with a dental milling system. The crowns were scanned using a dental laboratory scanner, and the data collected for each crown were divided into 4 parts (the external surface, intaglio surface, marginal area, and intaglio occlusal surface). Finally, the trueness of each part was determined using the 3D inspection software. The 3D trueness of the crowns fabricated by either 3D printing or milling was compared by a 1-sided test (α=.05). RESULTS The trueness of the external surface, intaglio surface, marginal area, and intaglio occlusal surface of the 3D-printed crowns was no worse than the corresponding trueness of the CAD-CAM crowns (P<.05). CONCLUSIONS Zirconia crowns produced by 3D printing meet the trueness requirements, and 3D printing may be suitable for fabricating zirconia crowns.
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Affiliation(s)
- Weina Wang
- Doctoral student, State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, PR China
| | - Hai Yu
- Doctoral student, State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, PR China
| | - Yifan Liu
- Graduate student, State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, PR China
| | - Xinlei Jiang
- Doctoral student, School of Foreign Studies, Xi'an Jiaotong University, Xi'an, PR China
| | - Bo Gao
- Professor, State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, PR China.
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31
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Anderson J, Wealleans J, Ray J. Endodontic applications of 3D printing. Int Endod J 2018; 51:1005-1018. [DOI: 10.1111/iej.12917] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 02/22/2018] [Indexed: 12/23/2022]
Affiliation(s)
- J. Anderson
- Endodontics; US Air Force Postgraduate Dental School; Uniformed Services University; JBSA-Lackland TX USA
| | - J. Wealleans
- Endodontics; US Air Force Postgraduate Dental School; Uniformed Services University; JBSA-Lackland TX USA
| | - J. Ray
- Endodontics; US Air Force Postgraduate Dental School; Uniformed Services University; JBSA-Lackland TX USA
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32
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Rios HF, Borgnakke WS, Benavides E. The Use of Cone-Beam Computed Tomography in Management of Patients Requiring Dental Implants: An American Academy of Periodontology Best Evidence Review. J Periodontol 2017; 88:946-959. [DOI: 10.1902/jop.2017.160548] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Hector F. Rios
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI
| | - Wenche S. Borgnakke
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI
| | - Erika Benavides
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI
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