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Balel Y, Grillo R. The past forty-three years of dental implantology literature. A global mapping and scientometric analysis. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2024; 125:101945. [PMID: 38857690 DOI: 10.1016/j.jormas.2024.101945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 06/06/2024] [Accepted: 06/07/2024] [Indexed: 06/12/2024]
Abstract
PURPOSE The aim of this research is to make a scientometric analysis of the dental implantology literature and to present the results in a more understandable way to the reader by visualizing them with maps. METHODS The dental implantology literature was accessed through the Web of Science database. Scientometric data was obtained with Citespace 6.1 software, co-citation, clustering analysis, citation burst, and mapping analyzes were performed. Scimago Graphica software was used for additional visualizations. RESULTS A total of 35,704 articles were included in the analysis. There were 88,616 authors, 72,333 institutes, 142 countries/regions, and 3,265 journals contributing to the dental implantology literature. The United States was first with 7,334 publications and 225,868 citations. The literature between 1980 and 2023 was divided into 19 different clusters, and the literature between 2000 and 2023 was divided into 16 different clusters. CONCLUSIONS Key themes in the field include the use of autogenous bone, advancements in implant surface technology, and the use of platform switching and intraoral scanners. Emerging topics of interest include esthetic considerations in the treatment of the anterior region, stress distribution, the use of zirconia, and the impact of implant treatment on oral health-related quality of life. With similar scientometric analysis studies to be done in the future, the progress of the literature can be followed on the basis of evidence.
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Affiliation(s)
- Yunus Balel
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Tokat Gaziosmanpasa University, Merkez, Tokat 60030, Turkey.
| | - Ricardo Grillo
- Department of Oral & Maxillofacial Surgery, Traumatology and Prosthesis - Faculty of Dentistry of the University of São Paulo, Brazil; Department of Oral & Maxillofacial Surgery, Faculdade Patos de Minas, Brasília, Brazil
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Bai X, Wu T, Zhu Y, Yang C, Cheng T, Liu Y, Zhou Y. Cone-wedge anchored surgical templates for stackable metal guide: a novel technique. Int J Implant Dent 2024; 10:27. [PMID: 38819712 PMCID: PMC11143131 DOI: 10.1186/s40729-024-00539-w] [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: 10/31/2023] [Accepted: 04/16/2024] [Indexed: 06/01/2024] Open
Abstract
OBJECTIVE To address the instability in implant surgical guides, this technique proposes an alternative anchoring mechanism in the stackable metal surgical guides utilizing cone-wedge anchors for improved stability. METHODS Postoperative implant position superimposed onto the preoperatively planned design using Mimics Medical 21.0 and Materialise Magics 24.0 to assess 3D coronal implant deviation, 3D apical implant deviation, and implant angular deviation. RESULTS Postoperative cone-beam computed tomography (CBCT) revealed a high level of precision in the implant placement, with an average 0.97 mm deviation at implant coronal region, 1.56 mm at implant apexes, and 2.95° angular deviation. CONCLUSION This technique introduces a novel cone-wedge anchoring mechanism to enhance the stability of stackable metal surgical guide templates, addressing inherent instability issues. The utilization of this approach significantly improves the accuracy of implant placement procedures.
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Affiliation(s)
- Xueying Bai
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, PR China
| | - Tao Wu
- Center for Prosthodontics and Implant Dentistry, Optics Valley Branch, School and Hospital of Stomatology; State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology , Wuhan University, Wuhan University, Wuhan, PR China
| | - Yuxi Zhu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, PR China
| | - Chengyu Yang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, PR China
| | - Tiange Cheng
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, PR China
| | - Yi Liu
- Department of Stomatology, Edong Healthcare Group, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Huangshi, PR China
| | - Yi Zhou
- Center for Prosthodontics and Implant Dentistry, Optics Valley Branch, School and Hospital of Stomatology; State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology , Wuhan University, Wuhan, 430000, PR China.
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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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Ebeling M, Sakkas A, Schramm A, Wilde F, Scheurer M, Winter K, Pietzka S. Accuracy Analysis of Computer-Assisted and Guided Dental Implantology by Comparing 3D Planning Data and Actual Implant Placement in a Mandibular Training Model: A Monocentric Comparison between Dental Students and Trained Implantologists. J Pers Med 2023; 13:1037. [PMID: 37511650 PMCID: PMC10381824 DOI: 10.3390/jpm13071037] [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: 04/30/2023] [Revised: 06/05/2023] [Accepted: 06/21/2023] [Indexed: 07/30/2023] Open
Abstract
The aim of this study was to investigate how precisely implantation can be realized by participants on a phantom head according to preliminary planning. Of particular interest here was the influence of participants' previous knowledge and surgical experience on the precision of the implant placement. The placed implants were scanned using an intraoral scanner, saved as STL files, and superimposed with the 3D-planned implant placement. Deviations from the planning were indicated in millimeters and degrees. We were able to show that on average, the deviations from computer-assisted 3D planning were less than 1 mm for implantologists, and the students also did not deviate more than 1.78 mm on average from 3D planning. This study shows that guided implantology provides predictable and reproducible results in dental implantology. Incorrect positioning, injuries to anatomical structures, and implant positions that cannot be prosthetically restored can thus be avoided.
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Affiliation(s)
- Marcel Ebeling
- Department of Cranio-Maxillo-Facial-Surgery, German Armed Forces Hospital Ulm, 89081 Ulm, Germany
| | - Andreas Sakkas
- Department of Cranio-Maxillo-Facial-Surgery, German Armed Forces Hospital Ulm, 89081 Ulm, Germany
- Department of Cranio-Maxillo-Facial-Surgery, University Hospital Ulm, 89081 Ulm, Germany
| | - Alexander Schramm
- Department of Cranio-Maxillo-Facial-Surgery, German Armed Forces Hospital Ulm, 89081 Ulm, Germany
- Department of Cranio-Maxillo-Facial-Surgery, University Hospital Ulm, 89081 Ulm, Germany
| | - Frank Wilde
- Department of Cranio-Maxillo-Facial-Surgery, German Armed Forces Hospital Ulm, 89081 Ulm, Germany
- Department of Cranio-Maxillo-Facial-Surgery, University Hospital Ulm, 89081 Ulm, Germany
| | - Mario Scheurer
- Department of Cranio-Maxillo-Facial-Surgery, German Armed Forces Hospital Ulm, 89081 Ulm, Germany
| | - Karsten Winter
- Institute of Anatomy, Medical Faculty, University of Leipzig, 04109 Leipzig, Germany
| | - Sebastian Pietzka
- Department of Cranio-Maxillo-Facial-Surgery, German Armed Forces Hospital Ulm, 89081 Ulm, Germany
- Department of Cranio-Maxillo-Facial-Surgery, University Hospital Ulm, 89081 Ulm, Germany
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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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Bergamaschi IP, Cortellazzi KL, Sverzut AT. Is Intraoral Scanning Accurate to Evaluate Dental Implant Position? An In-Vitro Study. J Oral Maxillofac Surg 2022; 81:441-455. [PMID: 36584976 DOI: 10.1016/j.joms.2022.11.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 11/22/2022] [Accepted: 11/26/2022] [Indexed: 12/29/2022]
Abstract
PURPOSE The position of dental implants is generally verified through imaging exams, even though its use exposes patients to radiation. Intraoral scanning (IOS) may be a suitable alternative to using radiographic imaging to verify implant position. Using polyurethane jaw models, the purpose of this in-vitro study was to measure and compare implant positions determined by IOS and cone-bean computed tomography (CBCT). METHODS One hundred twenty implants were installed in 30 edentulous polyurethane jaws, 4 dental implants in each prototype. Four scanbodies were attached to the implants, and a scanning of each mandible was acquired using an intraoral scanner (CS 3600). All prototypes were also submitted to CBCT. Then, the 3D scan files in STL (Standard Tessellation Language) format were superimposed on the DICOM (Digital Imaging and Communications in Medicine) images of the tomographic mandibles. The accuracy of IOS was evaluated by the metric analyses of deviations between the position of the implants projected by the IOS versus the detected tomographically, in which CBCT served as the gold standard, using a free software for digital planning (Bluesky 4 - Grayslake, IL, USA). The following measures were analyzed: radial deviations at the shoulder (Xc) and at the apex of the implants (Xa), height deviation (Xh) and axial deviation. Bland-Altman and a paired t-test were applied to verify the reproducibility between measurements and a t-test for a mean was applied to compare the measurements with zero value. RESULTS The results showed Xc and Xa deviation means of 0.14 ± 0.09 mm and 0.12 ± 0.12 mm, respectively. The Xh mean was 0.2 ± 0.12 mm and the axial deviation mean was 0.71° ± 0.66°. T-test showed a statistically significant difference when the 4 means were compared to zero value, represented by the CBCT (P < .0001). CONCLUSIONS There was a statistically significant difference IN the scanned measures compared to CBCT as the standard, but the differences may not be clinically significant. The IOS utilization to evaluate the position of dental implants is a radiation-free and reproducible method, with the advantage of not generating metal artifacts. Further clinical studies are needed to validate this new method of postoperative evaluation.
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Affiliation(s)
- Isabela Polesi Bergamaschi
- PhD Student of the Oral and Maxillofacial Surgery Area, Department of Oral Diagnosis, School of Dentistry of the Universidade Estadual de Campinas, Piracicaba, SP, Brazil.
| | - Karine Laura Cortellazzi
- Professor of Biostatics in the Area, Department of Health Sciences and Children's Dentistry, School of Dentistry of Universidade Estadual de Campinas, Piracicaba, SP, Brazil
| | - Alexander Tadeu Sverzut
- Professor of Oral and Maxillofacial Surgery Area, Department of Oral Diagnosis, School of Dentistry of Universidade Estadual de Campinas, Piracicaba, SP, Brazil
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Sabet J, Haghanifar S, Shafaroudi A, Nasiri P, Amin M. Evaluation of bone density by cone-beam computed tomography and its relationship with primary stability of dental implants. Dent Res J (Isfahan) 2022. [DOI: 10.4103/1735-3327.340107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Sittikornpaiboon P, Arunjaroensuk S, Kaboosaya B, Subbalekha K, Mattheos N, Pimkhaokham A. Comparison of the accuracy of implant placement using different drilling systems for static computer-assisted implant surgery: A simulation-based experimental study. Clin Implant Dent Relat Res 2021; 23:635-643. [PMID: 34288341 DOI: 10.1111/cid.13032] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 06/01/2021] [Accepted: 07/05/2021] [Indexed: 01/15/2023]
Abstract
BACKGROUND Different designs of surgical drilling systems have been developed for the purpose of static Computer-Assisted Implant Surgery (sCAIS), but there is at present little understanding of how design principles affect the accuracy of implant placement. PURPOSE The aim of this in vitro study was to compare the accuracy of implant placement among five drilling systems of sCAIS in a controlled experimental setting. MATERIALS AND METHODS Twenty-five 3D printed models with two edentulous bilateral premolar spaces were allocated to five different drilling systems: group A: sleeve-in-sleeve, group B: sleeve-in-sleeve with self-locking, group C: mounted sleeve-on-drill, group D: integrated sleeve-on-drill with metal sleeve in the guide, group E: integrated sleeve-on-drill without metal sleeve. Models were scanned with CBCT and optical scanner. All implants were digitally planned and 10 implants placed with sCAIS in each group. Postoperative 3D deviation of placed vs planned position was measured by means of platform, apex and angular deviation. Data was analyzed using Kruskal-Wallis test (P ≤ .05). Pairwise comparisons were tested with Dunn's test with adjusted P values. RESULTS The overall platform deviation ranged from 0.42 ± 0.12 mm (group B) to 1.18 ± 0.19 mm (group C). The overall apex deviation ranged from 0.76 ± 0.22 mm (group B) to 1.95 ± 0.48 mm (group D). The overall angular deviation ranged from 2.50 ± 0.89 degree (group B) to 5.30 ± 1.04 degree (group E). Group A and B showed significantly less angular deviation than groups D and E (P < .05). There was no statistically significant differences in all parameters between group A and B, as well as between group D and E (P > .05). CONCLUSIONS Significant differences were found with regards to accuracy among the five sCAIS systems tested, suggesting that the drilling protocol, the devices used and the design principles of the guides could influence the accuracy of implant placement.
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Affiliation(s)
- Paknisa Sittikornpaiboon
- Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Chulalongkorn University, Bangkok, Thailand
| | - Sirida Arunjaroensuk
- Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Chulalongkorn University, Bangkok, Thailand
| | - Boosana Kaboosaya
- Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Chulalongkorn University, Bangkok, Thailand
| | - Keskanya Subbalekha
- Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Chulalongkorn University, Bangkok, Thailand
| | - Nikos Mattheos
- Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Chulalongkorn University, Bangkok, Thailand.,Department of Dental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Atiphan Pimkhaokham
- Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Chulalongkorn University, Bangkok, Thailand
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Accuracy of Dental Implant Placement by a Novel In-House Model-Free and Zero-Setup Fully Guided Surgical Template Made of a Light-Cured Composite Resin (VARO Guide ®): A Comparative In Vitro Study. MATERIALS 2021; 14:ma14144023. [PMID: 34300944 PMCID: PMC8304558 DOI: 10.3390/ma14144023] [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: 06/22/2021] [Revised: 07/15/2021] [Accepted: 07/17/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND This in vitro study mainly aimed to compare VARO Guide® to the surgical guide fabricated by CAD/CAM (NAVI Guide®) in terms of accuracy and efficacy of the implant surgery held in the dentiform model. METHODS Twenty surgeons, 10 dentists in the beginner group and 10 dentists in the expert group, participated in the study. Each surgeon conducted fully guided surgery in dentiform models twice, once with VARO Guide® (VG surgery) and the other time with a conventional type of templates, NAVI Guide® (NG surgery). Based on the superimposition of presurgical and postsurgical STL files, the positional deviations between the virtually planned and actually placed implants and the time spent on presurgical preparation and surgical procedures were estimated and compared. RESULTS All dimensional deviations were similar between the two groups (p > 0.05), and there was no significant difference between the expert and beginner groups regardless of the guide system. The total procedure time (mean (median)) of the VG surgery (26.33 (28.58) min) was significantly shorter than that of the NG surgery (378.83 (379.35) min; p < 0.05). While the time spent only for the fully guided implant surgery (from the start of the surgical guide sitting onto the dentiform model to the final installation of the implant fixture) was comparable (p > 0.05), the presurgical preparation time spent on virtual implant planning and surgical guide fabrication in the VG surgery (19.63 (20.93) min) was significantly shorter compared to the NG surgery (372.93 (372.95) min; p < 0.05). CONCLUSIONS Regardless of experience, both VG and NG surgery showed reliable positional accuracy; however, the total procedure time and the preparation time were much shorter in the VG surgery compared to the NG surgery.
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Rostetter C, Abazi J, Gander T, Bredell M, Rücker M, Studer S, Zweifel D. Precision of 30 guided implants in complex tumour situations. Br J Oral Maxillofac Surg 2020; 58:e62-e66. [PMID: 32553510 DOI: 10.1016/j.bjoms.2020.06.004] [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: 10/14/2019] [Accepted: 06/03/2020] [Indexed: 10/24/2022]
Abstract
Implant born prosthetic rehabilitation of tumour patients can be difficult to perform. Challenges in treating such patients include disrupted anatomy with limited mouth opening due to previous ablative surgery as well as free-flaps or simple bone grafts, adjuvant therapy such as radiotherapy and, in general, poorer general health. Combining classical knowledge of ideal prosthesis placement and current virtual planning possibilities the positioning and in consequence the survival of dental implants can be optimised. Since prosthetic rehabilitation has a positive effect on the patients' quality of life and general health, we propose performing such surgeries as early as possible. All patients at our institution receiving pre-planned guided implant reconstruction and postoperative evaluation with Cone Beam Computed Tomography (CBCT) between 2015 and 2018 were evaluated for inclusion. Eight patients with a total of 30 implants met the inclusion criteria. The planned implant position was compared to the outcome position by fusing the two and deviations in entry-point position, apex-position, angular deviation and depth error were recorded. The mean (SD) discrepancy at entry-point was 2.28 (1.45) mm and 2.89 (1.53) mm at the apex, respectively. Mean (SD) angulation discrepancy was 9.5˚ (4.13˚) and the mean (SD) depth deviation was 1.52 (0.86) mm. Our results demonstrate the feasibility of pre-planned implant placement in challenging clinical situations and that only few concessions have to be made for precision.
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Affiliation(s)
- C Rostetter
- Private Practice for Maxillofacial Surgery, Kasernenstrasse 1, 9100 Herisau, Switzerland.
| | - J Abazi
- Department of Maxillofacial Surgery, Frauenklinikstrasse 24, 8091 Zurich, Switzerland
| | - T Gander
- Department of Maxillofacial Surgery, Frauenklinikstrasse 24, 8091 Zurich, Switzerland
| | - M Bredell
- Private Practice for Maxillofacial Surgery, Technikumstrasse 73, 8400 Winterthur, Switzerland
| | - M Rücker
- Department of Maxillofacial Surgery, Frauenklinikstrasse 24, 8091 Zurich, Switzerland
| | - S Studer
- Department of Maxillofacial Surgery, Frauenklinikstrasse 24, 8091 Zurich, Switzerland
| | - D Zweifel
- Private Practice for Maxillofacial Surgery, Technikumstrasse 73, 8400 Winterthur, Switzerland.
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Aouini W, Lambert F, Vrielinck L, Vandenberghe B. Patient Eligibility for Standardized Treatment of the Edentulous Mandible: A Retrospective CBCT-Based Assessment of Mandibular Morphology. J Clin Med 2019; 8:jcm8050616. [PMID: 31067682 PMCID: PMC6572614 DOI: 10.3390/jcm8050616] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/28/2019] [Accepted: 04/29/2019] [Indexed: 12/02/2022] Open
Abstract
The aim of the study was to evaluate the proportion of patients recommended for full-arch mandibular restoration that would be eligible for treatment with a recently developed premanufactured full-arch prosthesis (Trefoil™, Nobel Biocare) based on the morphology of their lower jaw. Anonymized cone beam computed tomography (CBCT) data from 100 partially and fully edentulous patients referred for full-arch mandibular restoration were retrospectively collected from an imaging center database. Using custom-built software, CBCTs of mandibles were registered to a reference CBCT of a patient treated previously with a premanufactured full-arch prosthesis to determine if patients had adequate horizontal width and vertical height for implant placement. Bone height and thickness around simulated implants and distances to the incisive canal were evaluated. Mandibular arch width and semi-automated volume calculations were also performed. Using the system-specific 5.0 mm diameter implants with lengths of 13 and 11.5 mm, 85% and 86% of patients, respectively, were eligible for treatment with the standardized prosthesis. Eligibility was higher for men than women (odds ratio = 3.9, p = 0.045) due to increased bone volume. Based on mandibular morphology, our results suggest that the standardized treatment concept could serve a large percentage of patients with edentulous mandibles or failing dentition in the mandible.
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Affiliation(s)
- Walid Aouini
- Department of Periodontology and Oral Surgery, CHU of Liege, Faculty of Medicine, University of Liege, 4000 Liège, Belgium.
| | - France Lambert
- Department of Periodontology and Oral Surgery, CHU of Liege, Faculty of Medicine, University of Liege, 4000 Liège, Belgium.
| | - Luc Vrielinck
- Department of Oral and Maxillofacial Surgery, St John's Hospital, 3600 Genk, Belgium.
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Oh KC, Kim JH, Woo CW, Moon HS. Accuracy of Customized Prefabricated Screw-Type Immediate Provisional Restorations after Single-Implant Placement. J Clin Med 2019; 8:jcm8040490. [PMID: 30978960 PMCID: PMC6526473 DOI: 10.3390/jcm8040490] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 03/29/2019] [Accepted: 04/09/2019] [Indexed: 11/16/2022] Open
Abstract
Limited evidence is available comparing the differences between pre-operative and post-operative 3D implant positions from the viewpoint of prosthetics. We aimed to investigate the differences between preplanned positions of virtual provisional restorations and their actual positions following fully guided single-implant placement. Ten maxillary typodonts with missing right central incisors were imaged using cone-beam computed tomography, and digital impressions were obtained using an intraoral scanner. These data were imported into implant-planning software, following which the provisional restorations were designed. After data superimposition, an appropriate implant position was determined, and a computer-assisted implant surgical guide was designed for each typodont. Orders generated from the implant-planning software were imported into relevant computer-aided design software to design the custom abutments. The abutments, provisional restorations, and surgical guides were fabricated, and each restoration was cemented to the corresponding abutments, generating a screw-type immediate provisional restoration. The implants were placed using the surgical guides, and the screw-type provisional restorations were engaged to the implants. The typodonts were then rescanned using the intraoral scanner. The restorations designed at the treatment planning stage were compared with those in the post-operative scan using metrology software. The angular deviation around the central axis of the implant was measured, and the differences in the crown position were converted to root mean square (RMS) values. The post-operative provisional restorations exhibited an absolute angular deviation of 6.94 ± 5.78° and an RMS value of 85.8 ± 20.2 µm when compared with their positions in the pre-operative stage. Within the limitations of the present in vitro study, the results highlight the potential application of customized prefabricated immediate provisional restorations after single-implant placement.
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Affiliation(s)
- Kyung Chul Oh
- Department of Prosthodontics, Yonsei University College of Dentistry, Seoul 03722, Korea.
| | - Jee-Hwan Kim
- Department of Prosthodontics, Yonsei University College of Dentistry, Seoul 03722, Korea.
| | - Chang-Woo Woo
- Central Dental Laboratory, Yonsei University Dental Hospital, Seoul 03722, Korea.
| | - Hong Seok Moon
- Department of Prosthodontics, Yonsei University College of Dentistry, Seoul 03722, Korea.
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Dings JPJ, Verhamme L, Maal TJJ, Merkx MAW, Meijer GJ. Reliability and accuracy of skin-supported surgical templates for computer-planned craniofacial implant placement, a comparison between surgical templates: With and without bony fixation. J Craniomaxillofac Surg 2019; 47:977-983. [PMID: 30905534 DOI: 10.1016/j.jcms.2019.01.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Revised: 12/17/2018] [Accepted: 01/23/2019] [Indexed: 11/30/2022] Open
Abstract
INTRODUCTION The purpose is to determine the accuracy of guided implant placement in the orbital, nasal, and auricular region using computer-aided designed stereolithographic skin-supported surgical templates with and without bone fixation pins. MATERIALS AND METHODS Preoperatively, cone-beam CT (CBCT) and multiple detector computed tomography (MDCT) scans were acquired from 10 cadaver heads, followed by virtual planning of implants in the orbital margin, auricular region and nasal floor. Surgical skin-supported templates were digitally designed to allow flapless implant placement. Fixation pins were used for stabilization comprising half of all templates in predetermined bone areas. The accuracy of the surgical templates was validated by comparing the achieved implant location to its virtual planned implant position by calculating the linear and angular deviations. RESULTS Surgical templates with the use of bone fixation pins produced statistically significant greater implant deviations as compared to the non-fixated surgical templates. CONCLUSION The results of this study indicate that significant deviation has to be taken into account when placing cranio-maxillofacial implants using skin-supported surgical templates. Surprisingly, the use of bone-fixated pins worsened the accuracy.
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Affiliation(s)
- J P J Dings
- Dept of Oral and Maxillofacial Surgery, Radboud University Nijmegen Medical Center, Nijmegen, the Netherlands.
| | - L Verhamme
- 3D Lab, Dept of Oral and Maxillofacial Surgery, Radboud University Nijmegen Medical Center, Nijmegen, the Netherlands
| | - T J J Maal
- 3D Lab, Dept of Oral and Maxillofacial Surgery, Radboud University Nijmegen Medical Center, Nijmegen, the Netherlands
| | - M A W Merkx
- Dept of Oral and Maxillofacial Surgery, Radboud University Nijmegen Medical Center, Nijmegen, the Netherlands
| | - G J Meijer
- Dept of Implantology and Periodontology, Radboud University Nijmegen Medical Center, Nijmegen, the Netherlands
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Nam Y, Eo MY, Kim SM. Development of a dental handpiece angle correction device. Biomed Eng Online 2018; 17:173. [PMID: 30477521 PMCID: PMC6258456 DOI: 10.1186/s12938-018-0606-1] [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: 06/07/2018] [Accepted: 11/19/2018] [Indexed: 12/02/2022] Open
Abstract
Background Preparation of a uniform angle of walls is essential for making an ideal convergence angle in fixed prosthodontics. We developed a de novo detachable angle-correction apparatus for dental handpiece drills that could help the ideal tooth preparation. Methods We utilized a gyro sensor to measure the angular velocities to calculate the slope of an object by integrating the values, acceleration sensor to calculate the slope of an object by measuring the acceleration relative to gravity, and Kalman filter algorithm. Converting the angulation of the handpiece body to its drill part could be performed by a specific matrix formulation set on two reference points (2° and 6°). A flexible printed circuit board was used to minimize the size of the device. For convergence angle investigation, 16 volunteers were divided randomly into two groups for performing tooth preparation on a mandibular first molar resin tooth. All abutments were scanned by a 3D scanner (D700®, 3Shape Co., Japan), the convergence angle and tooth axis deviation were analyzed by a CAD program (SolidWorks 2013®, Dassault Systems Co., USA) with statistical analysis by Wilcoxon signed-rank test (α = 0.05) using SPSS statistical software (Version 16.0, SPSS Inc.). Results This device successfully maintained the stable zero point (less than 1° deviation) at different angles (0°, 30°, 60°, 80°) for the first 30 min. In single tooth preparation, without this apparatus, the average bucco-lingual convergence angle was 20.26° (SD 7.85), and the average mesio–distal (MD) convergence angle was 17.88° (SD 7.64). However, the use of this apparatus improved the average BL convergence angle to 13.21° (SD 4.77) and the average MD convergence angle to 10.79° (SD 4.48). The angle correction device showed a statistically significant effect on reducing the convergence angle of both directions regardless of the order of the directions. Conclusions The angle correction device developed in this study is capable of guiding practitioners with high accuracy comparable to that of commercial navigation surgery. The volume of the angle correction device is much smaller than that of any other commercial navigation surgery system. This device is expected to be widely utilized in various fields of orofacial surgery.
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Affiliation(s)
- Yoon Nam
- Department of Oral Medicine and Oral Diagnosis, School of Dentistry, Dental Research Institute, Seoul National University, Seoul, South Korea
| | - Mi Young Eo
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Dental Research Institute, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 110-768, South Korea
| | - Soung Min Kim
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Dental Research Institute, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 110-768, South Korea.
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The first step of patient-specific design calvarial implant: A quantitative analysis of fresh parietal bones. EUROPEAN JOURNAL OF PLASTIC SURGERY 2018. [DOI: 10.1007/s00238-018-1411-6] [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]
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Helal E, El-Zawahry M, Gouda A, Elkhadem AH, Ibrahim SI. Bone Height Changes of the Mandibular Edentulous Ridge in Screw Retained Versus Telescopic Restorations for Completely Edentulous Patients. Open Access Maced J Med Sci 2017; 5:72-78. [PMID: 28293321 PMCID: PMC5320912 DOI: 10.3889/oamjms.2017.004] [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: 11/20/2016] [Revised: 12/18/2016] [Accepted: 12/20/2016] [Indexed: 11/05/2022] Open
Abstract
AIM This study was established to evaluate the amount of bone height changes in the posterior mandibular area of edentulous patients receiving screw-retained prostheses versus removable telescopic implant overdentures. MATERIAL AND METHODS Every patient received four inter-foraminal implants regarding the mandibular arch and four anterior implants for the maxillary arch, computer guided surgical guides were planned for the insertion of the implants accurately with a flapless technique. Panoramic radiographs were made immediately, six months and twelve months after the prostheses` use proportional area and vertical measurements were applied to determine changes in the bone height of the posterior mandibular edentulous area. RESULTS After twelve months, a statistically non-significant amount of bone resorption was reported for both groups. CONCLUSION Up to the limitations of this study both treatment options the screw retained and telescopic overdenture can be used for rehabilitation of completely edentulous patients. These cases must be followed for a longer period to have a definite answer regarding their efficiency in the long run.
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Affiliation(s)
- Eman Helal
- National Research Center, Fixed and Removable Prosthodontics, Cairo, Egypt
| | - Mohamed El-Zawahry
- National Research Center, Fixed and Removable Prosthodontics, Cairo, Egypt
| | - Ayman Gouda
- Faculty of Oral and Dental Medicine, Oral and Maxillofacial Surgery, Cairo University, Cairo, Egypt
| | - Amr Hosny Elkhadem
- Egypt Faculty of Oral and Dental Medicine, Prosthodontics, Cairo University, Cairo, Egypt
| | - Samira Ibrahim Ibrahim
- Egypt Faculty of Oral and Dental Medicine, Prosthodontics, Cairo University, Cairo, Egypt
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Chen X, Xu L, Sun Y, Politis C. A review of computer-aided oral and maxillofacial surgery: planning, simulation and navigation. Expert Rev Med Devices 2016; 13:1043-1051. [DOI: 10.1080/17434440.2016.1243054] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Nonradiological method for 3-dimensional implant position assessment using an intraoral scan: new method for postoperative implant control. IMPLANT DENT 2016; 23:612-6. [PMID: 25192152 DOI: 10.1097/id.0000000000000118] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
INTRODUCTION This study presents a method to verify the position of dental implants after insertion without the repeated x-ray exposure. MATERIAL AND METHODS An implant was inserted into the natural gap between the canines and premolars of 8 domestic pigs and 1 human patient. A scanbody was then connected to the implants and a digital intraoral impression of the jaw segment was acquired using a handheld scanner. In addition, the implant position was radiologically detected by cone beam computed tomography. The position of the implant based on both techniques was compared by digital matching. RESULTS The position of the dental implants determined by the scanner accurately represents the position in the radiograph in the pigs and also in the human patient. CONCLUSION Evaluating the position of implants using intraoral scans is a straightforward, accurate, and radiation-free method of 3-dimensional implant position determination.
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Karami D, Alborzinia HR, Amid R, Kadkhodazadeh M, Yousefi N, Badakhshan S. In-Office Guided Implant Placement for Prosthetically Driven Implant Surgery. Craniomaxillofac Trauma Reconstr 2016; 10:246-254. [PMID: 28751952 DOI: 10.1055/s-0036-1584891] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Accepted: 03/06/2016] [Indexed: 10/21/2022] Open
Abstract
Application of surgical stents for implant placement via guided flapless surgery is increasing. However, high cost, need for some professional machines, and not taking into account the soft-tissue parameters have limited their application. We sought to design and introduce a technique named in-office guided implant placement (iGIP) to decrease the cost by using available devices in office and enhance the applicability of surgical stents. A customized surgical stent was fabricated based on prosthetic, soft- and hard-tissue parameters by taking into account the amount of available bone (using the computed tomographic [CT] data), soft-tissue thickness and contour (using a composite-covered radiographic stent), and position of the final crown (by diagnostic cast wax up and marking the final crown position with composite). The efficacy of iGIP, in terms of the accuracy of the three-dimensional position of the implant placed in the study cast and in patient's mouth, was confirmed by direct observation and postoperative CT. The iGIP can enhance implant placement in the prosthetically desired position in various types of edentulism. Using this technique minimizes the risk of unwanted consequences, as the soft-tissue thickness and contour are taken into account when fabricating a surgical stent.
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Affiliation(s)
| | | | - Reza Amid
- Dental Research Center, Shahid Beheshti University of Medical Science, Evin, Tehran, Iran
| | - Mahdi Kadkhodazadeh
- Dental Research Center, Shahid Beheshti University of Medical Science, Evin, Tehran, Iran
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From Guided Surgery to Final Prosthesis with a Fully Digital Procedure: A Prospective Clinical Study on 15 Partially Edentulous Patients. Int J Dent 2016; 2016:7358423. [PMID: 27493665 PMCID: PMC4963589 DOI: 10.1155/2016/7358423] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Accepted: 06/19/2016] [Indexed: 01/20/2023] Open
Abstract
Scope. To demonstrate guided implant placement and the application of fixed, implant-supported prosthetic restorations with a fully digital workflow. Methods. Over a 2-year period, all patients with partial edentulism of the posterior maxilla, in need of fixed implant-supported prostheses, were considered for inclusion in this study. The protocol required intraoral scanning and cone beam computed tomography (CBCT), the superimposition of dental-gingival information on bone anatomy, surgical planning, 3D-printed teeth-supported surgical templates, and modelling and milling of polymethylmethacrylate (PMMA) temporaries for immediate loading. After 3 months, final optical impression was taken and milled zirconia frameworks and 3D-printed models were fabricated. The frameworks were veneered with ceramic and delivered to the patients. Results. Fifteen patients were selected for this study. The surgical templates were stable. Thirty implants were placed (BTK Safe®, BTK, Vicenza, Italy) and immediately loaded with PMMA temporaries. After 3 months, the temporaries were replaced by the final restorations in zirconia-ceramic, fabricated with a fully digital process. At 6 months, none of the patients reported any biological or functional problems with the implant-supported prostheses. Conclusions. The present procedure for fully digital planning of implants and short-span fixed implant-supported restorations has been shown to be reliable. Further studies are needed to validate these results.
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21
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Rivara F, Lumetti S, Calciolari E, Toffoli A, Forlani G, Manfredi E. Photogrammetric method to measure the discrepancy between clinical and software-designed positions of implants. J Prosthet Dent 2016; 115:703-11. [DOI: 10.1016/j.prosdent.2015.10.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 10/09/2015] [Accepted: 10/14/2015] [Indexed: 10/22/2022]
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22
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Naziri E, Schramm A, Wilde F. Accuracy of computer-assisted implant placement with insertion templates. GMS INTERDISCIPLINARY PLASTIC AND RECONSTRUCTIVE SURGERY DGPW 2016; 5:Doc15. [PMID: 27274440 PMCID: PMC4889312 DOI: 10.3205/iprs000094] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Objectives: The purpose of this study was to assess the accuracy of computer-assisted implant insertion based on computed tomography and template-guided implant placement. Material and methods: A total of 246 implants were placed with the aid of 3D-based transfer templates in 181 consecutive partially edentulous patients. Five groups were formed on the basis of different implant systems, surgical protocols and guide sleeves. After virtual implant planning with the CoDiagnostiX Software, surgical guides were fabricated in a dental laboratory. After implant insertion, the actual implant position was registered intraoperatively and transferred to a model cast. Deviations between the preoperative plan and postoperative implant position were measured in a follow-up computed tomography of the patient’s model casts and image fusion with the preoperative computed tomography. Results: The median deviation between preoperative plan and postoperative implant position was 1.0 mm at the implant shoulder and 1.4 mm at the implant apex. The median angular deviation was 3.6º. There were significantly smaller angular deviations (P=0.000) and significantly lower deviations at the apex (P=0.008) in implants placed for a single-tooth restoration than in those placed at a free-end dental arch. The location of the implant, whether in the upper or lower jaw, did not significantly affect deviations. Increasing implant length had a significant negative influence on deviations from the planned implant position. There was only one significant difference between two out of the five implant systems used. Conclusion: The data of this clinical study demonstrate the accuracy and predictable implant placement when using laboratory-fabricated surgical guides based on computed tomography.
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Affiliation(s)
- Eleni Naziri
- Department of Oral and Plastic Maxillofacial Surgery, Military Hospital Ulm, Germany
| | - Alexander Schramm
- Department of Oral and Plastic Maxillofacial Surgery, Military Hospital Ulm, Germany; Department of Oral and Maxillofacial Surgery, University Hospital Ulm, Germany
| | - Frank Wilde
- Department of Oral and Plastic Maxillofacial Surgery, Military Hospital Ulm, Germany
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23
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Noh K, Pae A, Lee JW, Kwon YD. Fabricating a tooth- and implant-supported maxillary obturator for a patient after maxillectomy with computer-guided surgery and CAD/CAM technology: A clinical report. J Prosthet Dent 2016; 115:637-42. [PMID: 26774316 DOI: 10.1016/j.prosdent.2015.10.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 10/14/2015] [Accepted: 10/15/2015] [Indexed: 12/01/2022]
Affiliation(s)
- Kwantae Noh
- Assistant Professor, Department of Prosthodontics, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - Ahran Pae
- Associate Professor, Department of Prosthodontics, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - Jung-Woo Lee
- Assistant Professor, Department of Oral and Maxillofacial surgery, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - Yong-Dae Kwon
- Professor and Chairman, Department of Oral and Maxillofacial surgery, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea.
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24
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Doh RM, Dam C, Kyung KY, Park W. Precise implant placement with a computer-assisted surgical guide in cleft lip and palate patients. Cleft Palate Craniofac J 2015; 52:e65-71. [PMID: 25919362 DOI: 10.1597/13-333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
It is very common for cleft lip and palate patients to have congenitally missing teeth. Insufficient buccopalatal bone volume, a shallow vestibule, and lack of soft tissue resulting from previous surgical scarring render it difficult for clinicians to place implants in the missing area. This report describes guide surgery that represents a treatment option for cases in which implants need to be placed in tight spaces with minimal bone space, to minimize as far as possible manual placement errors.
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25
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Gulati M, Anand V, Salaria SK, Jain N, Gupta S. Computerized implant-dentistry: Advances toward automation. J Indian Soc Periodontol 2015; 19:5-10. [PMID: 25810585 PMCID: PMC4365158 DOI: 10.4103/0972-124x.145781] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2014] [Accepted: 06/24/2014] [Indexed: 11/10/2022] Open
Abstract
Advancements in the field of implantology such as three-dimensional imaging, implant-planning software, computer-aided-design/computer-aided-manufacturing (CAD/CAM) technology, computer-guided, and navigated implant surgery have led to the computerization of implant-dentistry. This three-dimensional computer-generated implant-planning and surgery has not only enabled accurate preoperative evaluation of the anatomic limitations but has also facilitated preoperative planning of implant positions along with virtual implant placement and subsequently transferring the virtual treatment plans onto the surgical phase via static (guided) or dynamic (navigated) systems aided by CAD/CAM technology. Computerized-implant-dentistry being highly predictable and minimally invasive in nature has also allowed implant placement in patients with medical comorbidities (e.g. radiation therapy, blood dyscrasias), in patients with complex problems following a significant alteration of the bony anatomy as a result of benign or malignant pathology of the jaws or trauma and in patients with other physical and emotional problems. With significant achievements accomplished in the field of computerized implant-dentistry, attempts are now been made toward complete automation of implant-dentistry.
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Affiliation(s)
- Minkle Gulati
- Department of Periodontics, Surendera Dental College and Research Institute, Sri Ganganagar, Rajasthan, India
| | - Vishal Anand
- Department of Periodontics, Sarjug Dental College and Hospital, Darbhanga, Bihar, India
| | - Sanjeev Kumar Salaria
- Department of Periodontics, Surendera Dental College and Research Institute, Sri Ganganagar, Rajasthan, India
| | - Nikil Jain
- Department of Oral and Maxillofacial Surgery, Kalinga Institute of Dental Sciences, Bhubaneswar, Odisha, India
| | - Shilpi Gupta
- Department of Periodontics, UP Rural Institute of Medical Sciences & Research Safai, Etawah Lucknow, India
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Somogyi-Ganss E, Holmes HI, Jokstad A. Accuracy of a novel prototype dynamic computer-assisted surgery system. Clin Oral Implants Res 2014; 26:882-890. [DOI: 10.1111/clr.12414] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/02/2014] [Indexed: 11/28/2022]
Affiliation(s)
- Eszter Somogyi-Ganss
- Discipline of Prosthodontics; Faculty of Dentistry; University of Toronto; Toronto ON Canada
| | - Howard I. Holmes
- Discipline of Oral and Maxillofacial Surgery; Faculty of Dentistry; University of Toronto; Toronto ON Canada
| | - Asbjørn Jokstad
- Discipline of Prosthodontics; Faculty of Dentistry; University of Toronto; Toronto ON Canada
- Faculty of Health Sciences; UiT The Arctic University of Norway; Tromsø Norway
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27
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Sennerby L, Andersson P, Pagliani L, Giani C, Moretti G, Molinari M, Motroni A. Evaluation of a Novel Cone Beam Computed Tomography Scanner for Bone Density Examinations in Preoperative 3D Reconstructions and Correlation with Primary Implant Stability. Clin Implant Dent Relat Res 2013; 17:844-53. [DOI: 10.1111/cid.12193] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Lars Sennerby
- Department of Oral and Maxillofacial Surgery; Institute of Odontology; University of Gothenburg; Gothenburg Sweden
- Clinica Feltre; Feltre Italy
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28
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von See C, Wagner MEH, Schumann P, Lindhorst D, Gellrich NC, Stoetzer M. Non-radiological method for three-dimensional implant position evaluation using an intraoral scan method. Clin Oral Implants Res 2013; 25:1091-3. [PMID: 23799977 DOI: 10.1111/clr.12214] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/16/2013] [Indexed: 11/27/2022]
Abstract
INTRODUCTION This technical innovation presents a method that reproduces the position of a dental implant after insertion without the reuse of X-ray radiation. MATERIAL AND METHODS An implant was inserted into the natural gap between the canines and premolars of three domestic pigs. A Straumann Scanbody was then screwed to the implant, and a digital impression of the jaw segment was made. The scanbody was scanned using a hand-held scanner. This was followed by the radiological detection of implant position on a CBCT. On the computer, the position of the implant was calculated and compared with the radiologically detected position. RESULTS The calculated and determined position of the dental implant by the scanner is in good agreement with the radiologically controlled position. DISCUSSION Evaluating the position of implants using intraoral scans is an easy and radiation-free method of three-dimensional site assessment after superimposition over a three-dimensional data set.
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Affiliation(s)
- Constantin von See
- Department of Oral and Maxillofacial Surgery, Hanover Medical School, Hanover, Germany
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29
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Stübinger S, Buitrago-Tellez C, Cantelmi G. Deviations between Placed and Planned Implant Positions: An Accuracy Pilot Study of Skeletally Supported Stereolithographic Surgical Templates. Clin Implant Dent Relat Res 2012; 16:540-51. [DOI: 10.1111/cid.12019] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Stefan Stübinger
- Musculoskeletal Research Unit; Equine Hospital; Vetsuisse Faculty ZH; University of Zurich; Zurich Switzerland
- Center of Applied Biotechnology and Molecular Medicine (CABMM); Vetsuisse Faculty; University of Zurich; Zurich Switzerland
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Rußig LL, Schulze RKW. Effects of minute misregistrations of prefabricated markers for image-guided dental implant surgery: an analytical evaluation. Clin Oral Implants Res 2012; 24:1339-46. [PMID: 22924875 DOI: 10.1111/clr.12005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/15/2012] [Indexed: 11/28/2022]
Abstract
OBJECTIVES The goal of the present study was to develop a theoretical analysis of errors in implant position, which can occur owing to minute registration errors of a reference marker in a cone beam computed tomography volume when inserting an implant with a surgical stent. MATERIAL AND METHODS A virtual dental-arch model was created using anatomic data derived from the literature. Basic trigonometry was used to compute effects of defined minute registration errors of only voxel size. The errors occurring at the implant's neck and apex both in horizontal as in vertical direction were computed for mean ±95%-confidence intervals of jaw width and length and typical implant lengths (8, 10 and 12 mm). RESULTS Largest errors occur in vertical direction for larger voxel sizes and for greater arch dimensions. For a 10 mm implant in the frontal region, these can amount to a mean of 0.716 mm (range: 0.201-1.533 mm). Horizontal errors at the neck are negligible, with a mean overall deviation of 0.009 mm (range: 0.001-0.034 mm). Errors increase with distance to the registration marker and voxel size and are affected by implant length. CONCLUSION Our study shows that minute and realistic errors occurring in the automated registration of a reference object have an impact on the implant's position and angulation. These errors occur in the fundamental initial step in the long planning chain; thus, they are critical and should be made aware to users of these systems.
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Affiliation(s)
- Lorenz L Rußig
- Department of Oral Surgery (and Oral Radiology), University Medical, Center of the Johannes Gutenberg-University, Mainz, Germany
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Dreiseidler T, Tandon D, Kreppel M, Neugebauer J, Mischkowski RA, Zinser MJ, Zöller JE. CBCT device dependency on the transfer accuracy from computer-aided implantology procedures. Clin Oral Implants Res 2012; 23:1089-97. [DOI: 10.1111/j.1600-0501.2011.02272.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/11/2011] [Indexed: 01/03/2023]
Affiliation(s)
- Timo Dreiseidler
- Department of Craniomaxillofacial and Plastic Surgery; University of Cologne; Cologne; Germany
| | - Daniel Tandon
- Department of Craniomaxillofacial and Plastic Surgery; University of Cologne; Cologne; Germany
| | - Matthias Kreppel
- Department of Craniomaxillofacial and Plastic Surgery; University of Cologne; Cologne; Germany
| | | | - Robert A. Mischkowski
- Department of Craniomaxillofacial and Plastic Surgery; University of Cologne; Cologne; Germany
| | - Max J. Zinser
- Department of Craniomaxillofacial and Plastic Surgery; University of Cologne; Cologne; Germany
| | - Joachim E. Zöller
- Department of Craniomaxillofacial and Plastic Surgery; University of Cologne; Cologne; Germany
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Juergens P, Beinemann J, Zandbergen M, Raith S, Kunz C, Zeilhofer HF. A Computer-Assisted Diagnostic and Treatment Concept to Increase Accuracy and Safety in the Extracranial Correction of Cranial Vault Asymmetries. J Oral Maxillofac Surg 2012; 70:677-84. [PMID: 21807449 DOI: 10.1016/j.joms.2011.02.046] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2010] [Accepted: 02/04/2011] [Indexed: 10/17/2022]
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Ritter L, Reiz SD, Rothamel D, Dreiseidler T, Karapetian V, Scheer M, Zöller JE. Registration accuracy of three-dimensional surface and cone beam computed tomography data for virtual implant planning. Clin Oral Implants Res 2011; 23:447-52. [PMID: 21488966 DOI: 10.1111/j.1600-0501.2011.02159.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Virtual wax-ups based on three-dimensional (3D) surface models can be matched (i.e. registered) to cone beam computed tomography (CBCT) data of the same patient for dental implant planning. Thereby, implant planning software can visualize anatomical and prosthetic information simultaneously. The aim of this study is to assess the accuracy of a newly developed registration process. MATERIAL AND METHODS Data pairs of CBCT and 3D surface data of 16 patients for dental implant planning were registered and the discrepancy between the visualized 3D surface data and the corresponding CBCT data were measured on 64 teeth at seven points by two investigators in two iterations with a total of 1792 measurements. RESULTS All data pairs were matched successfully and mean distances between CBCT and 3D surface data were between 0.03(±0.33) and 0.14(±0.18) mm. At two of seven measuring points, statistically significant correlations were determined between the measured error and the presence and type of restorations. Registration errors in maxilla and mandible were not statistically significantly different. CONCLUSION According to the results of this study, registration of 3D surface data and CBCT data works reliably and is sufficiently accurate for dental implant planning. Thereby, barium-sulfate scanning templates can be avoided and dental implant planning can be accomplished fully virtual.
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Affiliation(s)
- L Ritter
- Department for Craniomaxillofacial and Plastic Surgery, University Hospital of Cologne, Cologne, Germany.
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A Novel Method of Preparation of Surgical Template for Guided Implant Placement: A Case Report. IMPLANT DENT 2011; 20:118-24. [DOI: 10.1097/id.0b013e31820fb47f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Pagliani L, Motroni A, Nappo A, Sennerby L. Short Communication: Use of a Diagnostic Software to Predict Bone Density and Implant Stability in Preoperative CTs. Clin Implant Dent Relat Res 2010; 14:553-7. [DOI: 10.1111/j.1708-8208.2010.00291.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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