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Sonkaya E, Kürklü ZGB. Comparisons of student comprehension of 3D-printed, standard model, and extracted teeth in hands-on sessions. EUROPEAN JOURNAL OF DENTAL EDUCATION : OFFICIAL JOURNAL OF THE ASSOCIATION FOR DENTAL EDUCATION IN EUROPE 2024; 28:452-460. [PMID: 37927207 DOI: 10.1111/eje.12969] [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: 09/14/2021] [Revised: 02/01/2023] [Accepted: 10/16/2023] [Indexed: 11/07/2023]
Abstract
INTRODUCTION Cavity preparation and direct and indirect pulp capping are difficult processes to learn in dentistry. Although plastic teeth are used in universities in Turkey, the standard model does not teach students how to distinguish between dental hard tissues from caries and how this relates to the pulp. The aim of this study was to investigate the differences in learning when a three-dimensional (3D)-printed tooth was employed in comparison with the standard model and extracted teeth. The differences are evaluated in the design, feasibility, and contribution of the 3D-printed dental tooth in pre-clinical education. MATERIALS AND METHODS The multi-layer 3D-printed tooth's authentic design and replication of the dental hard tissues and carious lesions are explored with 55 students for pre-clinical education, which includes caries excavation and direct and indirect pulp capping. The students completed questionnaires evaluating the 3D-printed teeth through comparison with the plastic and extracted teeth, rated with scores from 1 to 11 (1: poorest conformity; 11: excellent conformity). RESULTS The questionnaire results indicated that students approved the printed tooth model for the practice of theoretical knowledge and the model received ratings between good and excellent. The results were statistically analysed using the Wilcoxon signed-rank test, and the printed teeth had the highest approval from the students (p < .001). CONCLUSION The results of this study demonstrated that the use of the designed 3D-printed tooth is preferred by the students based on their perception of learning cavity preparation and pulp capping in a pre-clinical environment. Workflow and production were cost-effective with the use of 3D printing technology. The printed tooth allowed students to gain realistic experience before treating patients.
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Affiliation(s)
- Ezgi Sonkaya
- Department of Restorative Dentistry, Faculty of Dentistry, Cukurova University, Adana, Turkey
| | - Z Gonca Bek Kürklü
- Department of Restorative Dentistry, Faculty of Dentistry, Cukurova University, Adana, Turkey
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Damor PR, Sharma S, Kumar V, Chawla A, Logani A. Topography of root-end surface after freehand and three-dimensional-guided apicoectomy procedure: A scanning electron microscope study. JOURNAL OF CONSERVATIVE DENTISTRY AND ENDODONTICS 2024; 27:424-428. [PMID: 38779202 PMCID: PMC11108421 DOI: 10.4103/jcde.jcde_77_24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 03/03/2024] [Accepted: 03/06/2024] [Indexed: 05/25/2024]
Abstract
Background Dentinal microcracks formed during apical resection may lead to increased susceptibility to root fracture and improper sealing of apical preparation that may negatively influence the outcome of endodontic microsurgery. Aims This study was performed to analyze the root-end surface for dentinal microcracks using a scanning electron microscope (SEM) after resection with high-speed bur and trephine drill. Materials and Methods Thirty extracted single-rooted maxillary premolar teeth were selected and randomly distributed into two groups (n = 15). Working length was established using a #15 K-type file. Canals were prepared with a rotary Ni-Ti system to size 30/0.06 using endomotor, irrigated with 3% sodium hypochlorite, dried with paper points, and obturated with gutta-percha cones using a single-cone technique. All samples were mounted on preformed molds and poured using a mixture of sawdust and gypsum. In Group A; tungsten carbide bur was used to perform a freehand apicoectomy. In Group B; a trephine drill was used with a three-dimensional guide to perform 3 mm of root resection. Apicoectomy was performed in both groups under a dental operating microscope. Resected root ends were inspected for microcracks using SEM. The Shapiro-Wilk and Mann-Whitney U-test were used for statistical analysis. Results Microcracks were observed in all samples in both study groups. Trephine drill produced more microcracks on the resected root surface compared to the use of high-speed tungsten carbide bur with a statistically significant difference (P < 0.05). Conclusions The trephine drill used during targeted endodontic microsurgery produced more microcracks on the resected root dentine surface compared to the high-speed tungsten carbide bur used during freehand apicoectomy.
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Affiliation(s)
- Pradipkumar R. Damor
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Sidhartha Sharma
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Vijay Kumar
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Amrita Chawla
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Ajay Logani
- Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
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Koolivand H, Shooreshi MM, Safari-Faramani R, Borji M, Mansoory MS, Moradpoor H, Bahrami M, Azizi SM. Comparison of the effectiveness of virtual reality-based education and conventional teaching methods in dental education: a systematic review. BMC MEDICAL EDUCATION 2024; 24:8. [PMID: 38172742 PMCID: PMC10765860 DOI: 10.1186/s12909-023-04954-2] [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: 04/26/2023] [Accepted: 12/07/2023] [Indexed: 01/05/2024]
Abstract
BACKGROUND AND OBJECTIVES Virtual reality dental simulators as an educational tool may create specific training conditions for dental students, allowing them to practice dental skills in a safe and controlled condition. This study aimed to investigate the effectiveness of virtual reality-based education in dental education compared to traditional education approaches. METHODS In this systematic review, four databases (PubMed, Scopus, Web of Science, and Science Direct) were searched until 2023 following PRISMA guidelines. The Quality assessment and risk of bias were assessed by the Cochrane Collaboration Tool for RCTs and GRADE, respectively. Inclusion criteria were restricted to randomized or quasi-randomized trials about virtual reality efficacy in dental education. Two authors independently evaluated the data and reviewed the overall risk of bias for all selected studies. Study design, sample size, hardware, onset time of intervention, duration, and number of procedures performed were among the data extracted. RESULTS From the 703 titles, 48 full texts were chosen for review, yielding 14 articles for final inclusion. The review of these articles indicated the effective role of virtual reality dental simulators in improving students' knowledge and practical skills. CONCLUSIONS Based on our findings, adding haptic technology to virtual reality can improve students' practical skills, hand skills, theoretical knowledge, self-confidence, and learning environment. Although a fair amount of research needs to be done, notably on cost-effectiveness, student satisfaction, and other potentially adverse effects, virtual reality is a growing phenomenon with immense potential.
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Affiliation(s)
- Hossain Koolivand
- Dental Students' Research Committee, School of Dentistry, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mohammad Mahdi Shooreshi
- Dental Students' Research Committee, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Roya Safari-Faramani
- Assistant Professor of Epidemiology Department of Epidemiology, School of Health Research Center for Environmental Determinants of Health Research Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Milad Borji
- Faculty Member, Department of Nursing, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Meysam Siyah Mansoory
- Faculty Member, Department of Biomedical Engineering, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Hedaiat Moradpoor
- Associate Professor in Prosthodontics, Department of Prosthodontics, School of Dentistry, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Masoud Bahrami
- Research assistance, Arak University of Medical Sciences, Arak, Iran
| | - Seyyed Mohsen Azizi
- Medical Education and Development Center, Arak University of Medical Sciences, Arak, Iran
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Zeller AN, Goetze E, Thiem DGE, Bartella AK, Seifert L, Beiglboeck FM, Kröplin J, Hoffmann J, Pabst A. A survey regarding the organizational aspects and quality systems of in-house 3D printing in oral and maxillofacial surgery in Germany. Oral Maxillofac Surg 2023; 27:661-673. [PMID: 35989406 DOI: 10.1007/s10006-022-01109-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 08/02/2022] [Indexed: 01/15/2023]
Abstract
PURPOSE The aim of the study was to get a cross-sectional overview of the current status of specific organizational procedures, quality control systems, and standard operating procedures for the use of three-dimensional (3D) printing to assist in-house workflow using additive manufacturing in oral and maxillofacial surgery (OMFS) in Germany. METHODS An online questionnaire including dynamic components containing 16-29 questions regarding specific organizational aspects, process workflows, quality controls, documentation, and the respective backgrounds in 3D printing was sent to OMF surgeons in university and non-university hospitals as well as private practices with and without inpatient treatment facilities. Participants were recruited from a former study population regarding 3D printing; all participants owned a 3D printer and were registered with the German Association of Oral and Maxillofacial Surgery. RESULTS Sixty-seven participants answered the questionnaires. Of those, 20 participants ran a 3D printer in-unit. Quality assurance measures were performed by 13 participants and underlying processes by 8 participants, respectively. Standard operating procedures regarding computer-aided design and manufacturing, post-processing, use, or storage of printed goods were non-existent in most printing units. Data segmentation as well as computer-aided design and manufacturing were conducted by a medical doctor in most cases (n = 19, n = 18, n = 8, respectively). Most participants (n = 8) stated that "medical device regulations did not have any influence yet, but an adaptation of the processes is planned for the future." CONCLUSION The findings demonstrated significant differences in 3D printing management in OMFS, especially concerning process workflows, quality control, and documentation. Considering the ever-increasing regulations for medical devices, there might be a necessity for standardized 3D printing recommendations and regulations in OMFS.
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Affiliation(s)
- Alexander-N Zeller
- Department of Oral and Maxillofacial Surgery, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Elisabeth Goetze
- Department of Oral and Maxillofacial Surgery, University Hospital Erlangen, Glückstr. 11, 91054, Erlangen, Germany
| | - Daniel G E Thiem
- Department of Oral and Maxillofacial Surgery, University Medical Center Mainz, Augustusplatz 2, 55131, Mainz, Germany
| | - Alexander K Bartella
- Department of Oral and Maxillofacial Surgery, University Hospital Leipzig, Liebigstr. 12, 04103, Leipzig, Germany
| | - Lukas Seifert
- Department of Oral, Cranio Maxillofacial and Facial Plastic Surgery, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60528, Frankfurt am Main, Germany
| | - Fabian M Beiglboeck
- Department of Oral and Maxillofacial Surgery, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Munster, Germany
- MAM Research Group, Department of Biomedical Engineering, University of Basel, Gewerbestr. 16, 4123, Allschwil, Switzerland
| | - Juliane Kröplin
- Department of Oral and Maxillofacial Surgery, Helios Hospital Schwerin, Wismarsche Str. 393-397, 19049, Schwerin, Germany
| | - Jürgen Hoffmann
- Department of Oral and Maxillofacial Surgery, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany
| | - Andreas Pabst
- Department of Oral and Maxillofacial Surgery, Federal Armed Forces Hospital, Rübenacherstr. 170, 56072, Koblenz, Germany.
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Zhang J, Liu X, Yang L, Wang Y, Huang D, Tan X. A bibliometric comparison of undergraduate and postgraduate endodontic education publications: The topics, trends, and challenges. J Dent Educ 2023; 87:1661-1675. [PMID: 37565569 DOI: 10.1002/jdd.13350] [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: 04/25/2023] [Revised: 07/25/2023] [Accepted: 07/28/2023] [Indexed: 08/12/2023]
Abstract
OBJECTIVES This study employs bibliometric analysis to compare knowledge units and main topics in undergraduate and postgraduate endodontic education, aiming to identify similarities, differences, and connections. The insights gained are expected to inform the future of two-stage education to enhance continuity, highlighting evolving trends, challenges, and development directions. METHODS Citation data were retrieved from the Web of Science Core Collections (WOSCC) database and non-WOSCC databases with two separate search formulas. VOSviewer and CiteSpace were used to analyze the distribution of research by publication years, citation-sources, co-authorship network of authors and countries, and clusters of keywords. RESULTS The focus on undergraduate education preceded postgraduate education by nearly a decade. The United Kingdom has emerged as the most prominent contributor to endodontic literature at both levels, with the International Endodontic Journal representing the most voluminous and cited resource in this domain. Dummer is recognized as the most prolific author in undergraduate endodontic education, while Gulabivala spearheads the most extensive cluster of postgraduate education. Keywords clustering analysis reveals that undergraduate education places greater emphasis on fundamental knowledge, while postgraduate education concentrates more on clinical practice. Descriptive analyses from non-WOSCC databases align with the topics and findings from WOSCC-based bibliometric analysis. CONCLUSION This bibliometric analysis revealed the emphasis on fundamental knowledge and teaching techniques at the undergraduate level versus advanced clinical knowledge and techniques at the postgraduate level, which originated from different learning aims and contexts. Updating the curriculum to meet the latest practices and innovations is crucial for aligning learning objectives with current and future needs, and the connection between the two levels remains a central challenge in endodontic education.
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Affiliation(s)
- Jinglan Zhang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Operative Dentistry and Endodontics,West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xiaowei Liu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Operative Dentistry and Endodontics,West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Lei Yang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Operative Dentistry and Endodontics,West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yiran Wang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Operative Dentistry and Endodontics,West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Dingming Huang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Operative Dentistry and Endodontics,West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xuelian Tan
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Operative Dentistry and Endodontics,West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Kamburoğlu K, Sönmez G, Koç C, Yılmaz F, Tunç O, Isayev A. Access Cavity Preparation and Localization of Root Canals Using Guides in 3D-Printed Teeth with Calcified Root Canals: An In Vitro CBCT Study. Diagnostics (Basel) 2023; 13:2215. [PMID: 37443609 DOI: 10.3390/diagnostics13132215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/26/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023] Open
Abstract
Pulp canal obliteration (PCO) is a significant complication in endodontics that can occur due to various factors. Cone beam computed tomography (CBCT) is a useful diagnostic tool for identifying root canal anatomy and variations, and guided endodontics is emerging as an alternative treatment solution for teeth with partially or entirely obliterated pulpal canals. However, the accuracy of CBCT-guided 3D-printed guides on different materials and layer thicknesses is not well understood. Therefore, this study aimed to evaluate the accuracy of guides prepared using CBCT images on 3D-printed teeth with stereolithography (SLA) using three different materials and two different layer thicknesses. This study found that 3D-printed guides were accurate and reliable for accessing 3D-manufactured obliterated teeth and reaching the apical area. No significant differences in distance or angle measurements were found when different guide materials were used, suggesting that materials can be selected based on availability and cost. These findings contribute to the knowledge base regarding the effectiveness of 3D printing technology in guided endodontics and can help to identify the most suitable materials and techniques for this application.
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Affiliation(s)
- Kıvanç Kamburoğlu
- Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Ankara University, 06560 Ankara, Turkey
| | - Gül Sönmez
- Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Ada Kent University, 33010 Mersin, Turkey
| | - Cemre Koç
- Department of Endodontics, Faculty of Dentistry, Adnan Menderes University, 09010 Aydın, Turkey
| | - Funda Yılmaz
- Department of Endodontics, Faculty of Dentistry, Ankara University, 06500 Ankara, Turkey
| | - Osman Tunç
- BTech Innovation, Teknokent METU, 06800 Ankara, Turkey
| | - Abulfaz Isayev
- School of Dental Medicine, Boston University, Boston, MA 02118, USA
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Oza S, Lai G, Peters OA, Chen J, Karabucak B, Scott R, Galicia JC. The Influence of Cone Beam Computed Tomography-Derived 3D-Printed Models on Endodontic Microsurgical Treatment Planning and Confidence of the Operator. J Endod 2023; 49:521-527.e2. [PMID: 36804199 DOI: 10.1016/j.joen.2023.02.004] [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: 11/24/2022] [Revised: 02/02/2023] [Accepted: 02/06/2023] [Indexed: 02/17/2023]
Abstract
INTRODUCTION Currently, there are no studies evaluating the impact of 3-dimensional (3D) printed models on endodontic surgical treatment planning. The aims of this study were: 1) to determine if 3D models could influence treatment planning; and 2) to assess the effect of 3D supported planning on operator confidence. MATERIALS Endodontic practitioners (n = 25) were asked to analyze a preselected cone beam computed tomography (CBCT) scan of an endodontic surgical case and answer a questionnaire that elucidated their surgical approach. After 30 days, the same participants were asked to analyze the same CBCT scan. Additionally, participants were asked to study and to perform a mock osteotomy on a 3D printed model. The participants responded to the same questionnaire along with a new set of questions. Responses were statistically analyzed using chi square test followed by either logistic or ordered regression analysis. Adjustment for multiple comparison analysis was done using a Bonferroni correction. Statistical significance was set at ≤0.005. RESULTS The availability of both the 3D printed model and the CBCT scan resulted in statistically significant differences in the participants' responses to their ability to detect bone landmarks, predict the location of osteotomy, and to determine the following: size of osteotomy, angle of instrumentation, involvement of critical structures in flap reflection and involvement of vital structures during curettage. In addition, the participants' confidence in performing surgery was found to be significantly higher. CONCLUSIONS The availability of 3D printed models did not alter the participants' surgical approach but it significantly improved their confidence for endodontic microsurgery.
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Affiliation(s)
- Shreyas Oza
- Department of Endodontics, Arthur A. Dugoni School of Dentistry, University of the Pacific, San Francisco, California; Endodontic Private Practice, Dallas, Texas
| | - Gordon Lai
- Department of Endodontics, Arthur A. Dugoni School of Dentistry, University of the Pacific, San Francisco, California
| | - Ove A Peters
- Department of Endodontics, Arthur A. Dugoni School of Dentistry, University of the Pacific, San Francisco, California; School of Dentistry, The University of Queensland, Brisbane, QLD, Australia
| | - James Chen
- Department of Endodontics, College of Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Bekir Karabucak
- Department of Endodontics, College of Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Raymond Scott
- Department of Endodontics, Arthur A. Dugoni School of Dentistry, University of the Pacific, San Francisco, California
| | - Johnah C Galicia
- Department of Endodontics, Arthur A. Dugoni School of Dentistry, University of the Pacific, San Francisco, California; College of Dentistry, Manila Central University, Caloocan City, Philippines.
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Rezaie F, Farshbaf M, Dahri M, Masjedi M, Maleki R, Amini F, Wirth J, Moharamzadeh K, Weber FE, Tayebi L. 3D Printing of Dental Prostheses: Current and Emerging Applications. JOURNAL OF COMPOSITES SCIENCE 2023; 7:80. [PMID: 38645939 PMCID: PMC11031267 DOI: 10.3390/jcs7020080] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Revolutionary fabrication technologies such as three-dimensional (3D) printing to develop dental structures are expected to replace traditional methods due to their ability to establish constructs with the required mechanical properties and detailed structures. Three-dimensional printing, as an additive manufacturing approach, has the potential to rapidly fabricate complex dental prostheses by employing a bottom-up strategy in a layer-by-layer fashion. This new technology allows dentists to extend their degree of freedom in selecting, creating, and performing the required treatments. Three-dimensional printing has been narrowly employed in the fabrication of various kinds of prostheses and implants. There is still an on-demand production procedure that offers a reasonable method with superior efficiency to engineer multifaceted dental constructs. This review article aims to cover the most recent applications of 3D printing techniques in the manufacturing of dental prosthetics. More specifically, after describing various 3D printing techniques and their advantages/disadvantages, the applications of 3D printing in dental prostheses are elaborated in various examples in the literature. Different 3D printing techniques have the capability to use different materials, including thermoplastic polymers, ceramics, and metals with distinctive suitability for dental applications, which are discussed in this article. The relevant limitations and challenges that currently limit the efficacy of 3D printing in this field are also reviewed. This review article has employed five major scientific databases, including Google Scholar, PubMed, ScienceDirect, Web of Science, and Scopus, with appropriate keywords to find the most relevant literature in the subject of dental prostheses 3D printing.
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Affiliation(s)
- Fereshte Rezaie
- Department of Endodontic, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz P.O. Box 5163639888, Iran
| | - Masoud Farshbaf
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz P.O. Box 5163639888, Iran
| | - Mohammad Dahri
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz P.O. Box 5163639888, Iran
| | - Moein Masjedi
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz P.O. Box 6468571468, Iran
| | - Reza Maleki
- Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran P.O. Box 33535111, Iran
| | - Fatemeh Amini
- School of Dentistry, Shahed University of Medical Sciences, Tehran P.O. Box 5163639888, Iran
| | - Jonathan Wirth
- School of Dentistry, Marquette University, Milwaukee, WI 53233, USA
| | - Keyvan Moharamzadeh
- Hamdan Bin Mohammed College of Dental Medicine (HBMCDM), Mohammed Bin Rashid University of Medicine and Health Sciences (MBRU), Dubai P.O. Box 505055, United Arab Emirates
| | - Franz E. Weber
- Center for Dental Medicine/Cranio-Maxillofacial and Oral Surgery, Oral Biotechnology and Bioengineering, University of Zurich, Plattenstrasse 11, CH-8032 Zurich, Switzerland
| | - Lobat Tayebi
- School of Dentistry, Marquette University, Milwaukee, WI 53233, USA
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Hsu MH, Chang YC. Haptic and Force Feedback Technology in Dental Education: A Bibliometric Analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:1318. [PMID: 36674074 PMCID: PMC9859437 DOI: 10.3390/ijerph20021318] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/08/2023] [Accepted: 01/09/2023] [Indexed: 06/17/2023]
Abstract
The haptic and force feedback technology has received an increasing attention in dental schools due to its effectiveness in psychomotor skill training. However, the bibliometric analysis on haptic and force feedback technology in dental education is still scarce. Therefore, the aim of this study was to perform a bibliometric analysis of the development of haptic and force feedback technology and its changing trends in dental education. From 1 January 2001 to 30 November 2022, all papers published on haptic and force feedback technology were searched from the Web of Science Core Collection database. These data were then entered into Apple Numbers for descriptive bibliometric analysis and visualized using VOSviewer software. A total of 85 articles were retrieved following the inclusive and exclusive criteria. The results demonstrated that USA and China exhibited the most publications. The combination of correspondence author and author co-citation analysis identified the more prominent authors in this research field. The top-cited and the average citation count per year ranking led to different views of popularity. A significant increase in the number of haptic and force feedback technology publications were found in the last two years. Virtual reality is the main keyword that indicates more new integrative applications currently underway. Taken together, this study provides a detailed bibliographic analysis of haptic and force feedback technology in dental education to indicate representative authors, literatures, keywords, and trends. These detailed data will help researchers, teachers, and dental students as a very useful information when trying to make haptic and force feedback technology more prevalent in dental education in the near further.
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Affiliation(s)
- Min-Hsun Hsu
- School of Dentistry, Chung Shan Medical University, Taichung 40201, Taiwan
| | - Yu-Chao Chang
- School of Dentistry, Chung Shan Medical University, Taichung 40201, Taiwan
- Department of Dentistry, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
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Zimmermann R, Seitz S. The Impact of Technological Innovation on Dentistry. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1406:79-102. [PMID: 37016112 DOI: 10.1007/978-3-031-26462-7_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/06/2023]
Abstract
Technology has revolutionized the way dentists are able to treat their patients. These technological advances have paved the way for the creation of virtual patient models utilizing these 3-dimensional intra-oral patient models, cone bean computer tomography (CBCT) radiograph scans, extraoral 3-dimensional scans, and jaw motion tracings to create a patient-specific model. These models are advantageous in planning surgical treatments by providing 3-dimensional views of vital anatomical structures to accurately identify the location, size, and shape of a structure or defect in order to plan accordingly. Virtual augmentation of either hard tissue (bone) and/or soft tissue (i.e., gingiva) can also be accomplished.Technology has allowed the capture of the dynamic motions of the jaw and combined them with the virtual patient to develop permanent restorations in harmony with the patient's orofacial complex. With the introduction of new technology in the realm of digital dentistry, patient care is being brought to a new and higher level. This creates a level of more optimal care that a dentist can deliver to patients.
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Affiliation(s)
- Richard Zimmermann
- Department of Comprehensive Dentistry, UT Health San Antonio, San Antonio, TX, USA
| | - Stefanie Seitz
- Department of Comprehensive Dentistry, UT Health San Antonio, San Antonio, TX, USA.
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Ribeiro D, Reis E, Marques JA, Falacho RI, Palma PJ. Guided Endodontics: Static vs. Dynamic Computer-Aided Techniques—A Literature Review. J Pers Med 2022; 12:jpm12091516. [PMID: 36143301 PMCID: PMC9501573 DOI: 10.3390/jpm12091516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/11/2022] [Accepted: 09/12/2022] [Indexed: 11/26/2022] Open
Abstract
(1) Background: access cavity preparation is the first stage of non-surgical endodontic treatment. The inaccuracy of this step may lead to numerous intraoperative complications, which impair the root canal treatment’s prognosis and therefore the tooth’s survival. Guided endodontics, meaning computer-aided static (SN) and dynamic navigation (DN) techniques, has recently emerged as a new approach for root canal location in complex cases. This review aims to compare SN and DN guided endodontics’ techniques in non-surgical endodontic treatment. (2) Methods: an electronic search was performed on PubMed, Scopus, and Cochrane Library databases until October 2021. Studies were restricted by language (English, Spanish and Portuguese) and year of publication (from 2011 to 2021). (3) Results: a total of 449, 168 and 32 articles were identified in PubMed, Scopus, and Cochrane Library databases, respectively, after the initial search. Of the 649 articles, 134 duplicates were discarded. In this case, 67 articles were selected after title and abstract screening, of which 60 were assessed for eligibility through full-text analysis, with one article being excluded. Four cross-references were added. Thus, 63 studies were included. (4) Conclusions: guided endodontics procedures present minimally invasive and accurate techniques which allow for highly predictable root canal location, greater tooth structure preservation and lower risk of iatrogenic damage, mainly when performed by less experienced operators. Both SN and DN approaches exhibit different advantages and disadvantages that make them useful in distinct clinical scenarios.
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Affiliation(s)
- Diana Ribeiro
- Dentistry Department, Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal
| | - Eva Reis
- Dentistry Department, Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal
| | - Joana A. Marques
- Institute of Endodontics, Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal
- Center for Innovation and Research in Oral Sciences (CIROS), Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal
| | - Rui I. Falacho
- Center for Innovation and Research in Oral Sciences (CIROS), Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal
- Institute of Oral Implantology and Prosthodontics, Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal
| | - Paulo J. Palma
- Institute of Endodontics, Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal
- Center for Innovation and Research in Oral Sciences (CIROS), Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal
- Correspondence: ; Tel.: +351-239-249-151
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Zhu Y, Lin F, Chen W. Dental 3D Printing Design Based on Neurodegeneration and Virtual Reality Imaging Technology. BIOMED RESEARCH INTERNATIONAL 2022; 2022:6833959. [PMID: 36119937 PMCID: PMC9477623 DOI: 10.1155/2022/6833959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 07/28/2022] [Accepted: 08/06/2022] [Indexed: 11/18/2022]
Abstract
Objective To model and compare the stress variation and distribution of the implant and its supporting components under two types of loading with the abutment in the axial and coronal lingual augmentation positions by means of the 3D finite element method. Method 15 all-ceramic crowns completed by the same technician between the years 2014 and 2015 were randomly selected. A high precision laser scanner was used to scan the specimen models of all-ceramic crowns and then converted and imported into the promapping software to create 15 solid models each in the axial position of the crown and the lingual augmentation position of the crown. Results We showed that the abutments were significantly more stressed in the bone cortex than in the bone cancellous under both loads when the abutments were in the long axis position and in the lingual ridge position of the dentition. The distribution of stresses in the bone tissue was mainly concentrated in the cortical bone. The stresses induced by oblique forces were greater than those induced by vertical forces. When comparing the abutment in the long axis position of the dentition with the lingual ridge position of the dentition, the peak stresses obtained from the stress analysis of the abutment in the lingual ridge position were all increased to different degrees under both loads, and the differences were statistically significant (p < 0.05) suggesting that the design of the abutment in the direction of the long axis of the dentition is less stressful than that of the crown in the lingual augmentation position, and the risk of alveolar ridge resorption and screw fracture is less. Conclusion In this paper, we proposed a dental 3D scanning system, which is less stressful based on a 3D reconstruction algorithm using Fourier transform contouring that achieved a speed dental 3D scanner with Fourier transform contouring by projecting a raster pattern onto a dental impression.
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Affiliation(s)
- Yanfeng Zhu
- Department of Stomatology, The Affiliated Union Hospital, Fujian Medical University, Fuzhou, Fujian 350001, China
| | - Fei Lin
- Department of Stomatology, The Affiliated Union Hospital, Fujian Medical University, Fuzhou, Fujian 350001, China
| | - Weihui Chen
- Department of Stomatology, The Affiliated Union Hospital, Fujian Medical University, Fuzhou, Fujian 350001, China
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Tigmeanu CV, Ardelean LC, Rusu LC, Negrutiu ML. Additive Manufactured Polymers in Dentistry, Current State-of-the-Art and Future Perspectives-A Review. Polymers (Basel) 2022; 14:polym14173658. [PMID: 36080732 PMCID: PMC9460687 DOI: 10.3390/polym14173658] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 08/21/2022] [Accepted: 09/01/2022] [Indexed: 11/16/2022] Open
Abstract
3D-printing application in dentistry not only enables the manufacture of patient-specific devices and tissue constructs, but also allows mass customization, as well as digital workflow, with predictable lower cost and rapid turnaround times. 4D printing also shows a good impact in dentistry, as it can produce dynamic and adaptable materials, which have proven effective in the oral environment, under its continuously changing thermal and humidity conditions. It is expected to further boost the research into producing a whole tooth, capable to harmoniously integrate with the surrounding periodontium, which represents the ultimate goal of tissue engineering in dentistry. Because of their high versatility associated with the wide variety of available materials, additive manufacturing in dentistry predominantly targets the production of polymeric constructs. The aim of this narrative review is to catch a glimpse of the current state-of-the-art of additive manufacturing in dentistry, and the future perspectives of this modern technology, focusing on the specific polymeric materials.
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Affiliation(s)
- Codruta Victoria Tigmeanu
- Department of Technology of Materials and Devices in Dental Medicine, Faculty of Dental Medicine, Multidisciplinary Center for Research, Evaluation, Diagnosis and Therapies in Oral Medicine, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania
| | - Lavinia Cosmina Ardelean
- Department of Technology of Materials and Devices in Dental Medicine, Faculty of Dental Medicine, Multidisciplinary Center for Research, Evaluation, Diagnosis and Therapies in Oral Medicine, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania
- Correspondence:
| | - Laura-Cristina Rusu
- Department of Oral Pathology, Faculty of Dental Medicine, Multidisciplinary Center for Research, Evaluation, Diagnosis and Therapies in Oral Medicine, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania
| | - Meda-Lavinia Negrutiu
- Department of Prostheses Technology and Dental Materials, Faculty of Dental Medicine, Research Center in Dental Medicine Using Conventional and Alternative Technologies, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania
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D GT, Saxena P, Gupta S. Static vs. dynamic navigation for endodontic microsurgery - A comparative review. J Oral Biol Craniofac Res 2022; 12:410-412. [PMID: 35646551 PMCID: PMC9136095 DOI: 10.1016/j.jobcr.2022.04.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 04/29/2022] [Indexed: 11/29/2022] Open
Abstract
Digitalization of operative procedures through three-dimensional (3D) navigation is a remarkable advancement in the field of dentistry which allows both precision and accuracy while treating patients. It is an emerging technology with a wide variety of applications in dentistry. In the field of endodontics, these computer-aided 3D systems are being used for accessing and localizing canals in calcified teeth, removal of fiberglass posts, and in peri-apical surgeries etc. Preservation of important anatomical structures becomes necessary while performing root-end resection or peri-apical surgeries. However, it is clinically difficult to achieve accurate root-end resection due to the limited field of view, inconvenient perspective, and interferential bleeding among other factors. 3D guided endodontics play vital role here. 3D guided endodontics can be achieved in two ways- Static and Dynamic navigation. Due to availability of limited literature, there is a need to review new evidence comparing the effectiveness of both techniques of 3D guided endodontic navigation systems. This review paper describes the comparative evaluation of the effectiveness of static as well as dynamic navigation in the field of endodontic microsurgery.
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Affiliation(s)
- Geo T. D
- Department of Conservative Dentistry and Endodontics, Government College of Dentistry, 1 Sardar Patel Marg, Opp. M.Y. Hospital, Indore, Madhya Pradesh, 452001, India
| | - Payal Saxena
- Department of Conservative Dentistry and Endodontics, Government College of Dentistry, 1 Sardar Patel Marg, Opp. M.Y. Hospital, Indore, Madhya Pradesh, 452001, India
| | - Saurabh Gupta
- Department of Conservative Dentistry and Endodontics, Government College of Dentistry, 1 Sardar Patel Marg, Opp. M.Y. Hospital, Indore, Madhya Pradesh, 452001, India
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3D-Printed Teeth in Endodontics: Why, How, Problems and Future-A Narrative Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19137966. [PMID: 35805624 PMCID: PMC9265401 DOI: 10.3390/ijerph19137966] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/21/2022] [Accepted: 06/27/2022] [Indexed: 02/05/2023]
Abstract
Three-dimensional printing offers possibilities for the development of new models in endodontics. Numerous studies have used 3D-printed teeth; however, protocols for the standardization of studies still need to be developed. Another problem with 3D-printed teeth is the different areas of literature requested to understand the processes. This review aims to gather evidence about 3D-printed teeth on the following aspects: (1) why they are advantageous; (2) how they are manufactured; (3) problems they present; and (4) future research topics. Natural teeth are still the standard practice in ex vivo studies and pre-clinical courses, but they have several drawbacks. Printed teeth may overcome all limitations of natural teeth. Printing technology relies on 3D data and post-processing tools to form a 3D model, ultimately generating a prototype using 3D printers. The major concerns with 3D-printed teeth are the resin hardness and printing accuracy of the canal anatomy. Guidance is presented for future studies to solve the problems of 3D-printed teeth and develop well-established protocols, for the standardization of methods to be achieved. In the future, 3D-printed teeth have the possibility to become the gold standard in ex vivo studies and endodontic training.
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16
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AlSanawi H, Albishi W, AlDhaheri M, AlMugren T, AlAmer N. Chondrosarcoma of the proximal radius treated by wide resection and reconstructed by 3D printed implant: A case report and description of surgical technique. Int J Surg Case Rep 2022; 91:106770. [PMID: 35042125 PMCID: PMC8777282 DOI: 10.1016/j.ijscr.2022.106770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/08/2022] [Accepted: 01/10/2022] [Indexed: 11/29/2022] Open
Abstract
Introduction Chondrosarcoma is the second most common primary malignancy of bone that can occur in multiple locations in the skeleton. It has been rarely reported in the proximal radius. While surgical resection is the primary treatment modality for individuals with localized disease, reconstruction can be challenging in the elbow joint due to its complex anatomy. 3D printing technology can be used in such complex cases to restore the normal anatomy after resection. Case presentation We present a case of mesenchymal chondrosarcoma in a 33-year-old male occurring in the proximal radius, restricting his elbow motion. That was resected and reconstructed using 3D modeling. Restoring a functional range of motion without instability. Discussion Many surgical options for chondrosarcoma presented over the years including en bloc resection, resection with or without reconstruction, or amputation. Usage of 3D modeling in the orthopedic surgery field is relatively new and it can be used in pre-operative planning and shortens surgical time. 3D printing in our case helped in obtaining a full range of motion (flexion, extension, pronation, and supination) for the patient. Conclusion It's important to reconstruct elbow joint support structure and function after resection of such a large malignant tumor in young patients. We used 3D printed implant to maintain a functional limb and it was an excellent alternative treatment. Chondrosarcoma occurring in the proximal radius is very rare. Up to our knowledge, this is the second case report. We report a case of proximal radius chondrosarcoma managed by reconstruction with Three-Dimension printed implant. 3D printing in the field of orthopedic surgery is relatively new and has upscaled medical management. A description of a surgical technique to reconstruct proximal radius and maintaining full range of motion of the elbow.
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Affiliation(s)
- Hisham AlSanawi
- Department of Orthopedic Surgery, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
| | - Waleed Albishi
- Department of Orthopedic Surgery, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed AlDhaheri
- Department of Orthopedic Surgery, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Turki AlMugren
- Department of Surgery, King Abdul-aziz Medical City, Riyadh, Saudi Arabia
| | - Naif AlAmer
- Department of Orthopedic Surgery, Ministry of Health, Upper Extremity Fellow, King Saud University, Riyadh, Saudi Arabia.
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Gómez Meda R, Abella Sans F, Esquivel J, Zufía J. Impacted maxillary canine with curved apex: Three-dimensional guided protocol for autotransplantation. J Endod 2021; 48:379-387. [PMID: 34929261 DOI: 10.1016/j.joen.2021.12.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 12/08/2021] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Maxillary canines play a crucial role in dental and facial aspect, arch expansion, and efficient occlusion. When surgical exposure measures cannot be executed or the patient does not agree to take the treatment, autotransplantation should be considered. The aim of this case report was to describe a novel surgical technique using virtually planned three-dimensional(3D)-printed templates for guided apicoectomy and guided drilling of the recipient site for an autotransplantation of an impacted maxillary canine with a curved apex. METHODS A 42-year-old male complaining of pain and increased mobility in the maxillary left primary canine came to the clinic. Autotransplantation of the impacted canine was completed using altered methods from guided implant surgery to manufacture 3D-printed templates. Following a full-thickness mucoperiosteal flap elevation, the surgical template for the guided osteotomy and apicoectomy was inserted. This 3D-printed guided allowed the clinician to perform a quick and precise removal of the curved apex, providing an atraumatic extraction of the impacted canine throughout the cyst. Three further 3D surgical guides for implant burs and a 3D replica tooth were printed to modify the recipient socket. After the final position, the tooth was semi-rigid splinted to the adjacent teeth. RESULTS Follow-up at 2 years showed complete regeneration of the palatal defect and remodeling of the bone surrounding the maxillary canine. CONCLUSIONS Digitally planned procedures can facilitate the complex execution of an autotransplantation reducing the treatment chair-time and the morbidity for the patient as well as increasing the predictability of the result.
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Affiliation(s)
| | - Francesc Abella Sans
- Department of Endodontics, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain.
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18
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Hattab G, Hatzipanayioti A, Klimova A, Pfeiffer M, Klausing P, Breucha M, Bechtolsheim FV, Helmert JR, Weitz J, Pannasch S, Speidel S. Investigating the utility of VR for spatial understanding in surgical planning: evaluation of head-mounted to desktop display. Sci Rep 2021; 11:13440. [PMID: 34188080 PMCID: PMC8241863 DOI: 10.1038/s41598-021-92536-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 06/11/2021] [Indexed: 02/06/2023] Open
Abstract
Recent technological advances have made Virtual Reality (VR) attractive in both research and real world applications such as training, rehabilitation, and gaming. Although these other fields benefited from VR technology, it remains unclear whether VR contributes to better spatial understanding and training in the context of surgical planning. In this study, we evaluated the use of VR by comparing the recall of spatial information in two learning conditions: a head-mounted display (HMD) and a desktop screen (DT). Specifically, we explored (a) a scene understanding and then (b) a direction estimation task using two 3D models (i.e., a liver and a pyramid). In the scene understanding task, participants had to navigate the rendered the 3D models by means of rotation, zoom and transparency in order to substantially identify the spatial relationships among its internal objects. In the subsequent direction estimation task, participants had to point at a previously identified target object, i.e., internal sphere, on a materialized 3D-printed version of the model using a tracked pointing tool. Results showed that the learning condition (HMD or DT) did not influence participants' memory and confidence ratings of the models. In contrast, the model type, that is, whether the model to be recalled was a liver or a pyramid significantly affected participants' memory about the internal structure of the model. Furthermore, localizing the internal position of the target sphere was also unaffected by participants' previous experience of the model via HMD or DT. Overall, results provide novel insights on the use of VR in a surgical planning scenario and have paramount implications in medical learning by shedding light on the mental model we make to recall spatial structures.
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Affiliation(s)
- Georges Hattab
- grid.461742.2Division of Translational Surgical Oncology (TSO), National Center for Tumor Diseases (NCT), Partner Site Dresden, 01307 Dresden, Germany
| | - Adamantini Hatzipanayioti
- grid.4488.00000 0001 2111 7257Centre for Tactile Internet with Human-in-the-Loop (CeTI), TU Dresden, 01062 Dresden, Germany ,grid.4488.00000 0001 2111 7257Unit of Lifespan Developmental Neuroscience, Faculty of Psychology, TU Dresden, 01062 Dresden, Germany
| | - Anna Klimova
- grid.4488.00000 0001 2111 7257Institute for Medical Informatics and Biometry (IMB), Faculty of Medicine, TU Dresden, 01307 Dresden, Germany ,grid.461742.2Core Unit for Data Management and Analytics, National Center for Tumor Diseases (NCT), Partner Site Dresden, 01307 Dresden, Germany
| | - Micha Pfeiffer
- grid.461742.2Division of Translational Surgical Oncology (TSO), National Center for Tumor Diseases (NCT), Partner Site Dresden, 01307 Dresden, Germany
| | - Peter Klausing
- grid.461742.2Division of Translational Surgical Oncology (TSO), National Center for Tumor Diseases (NCT), Partner Site Dresden, 01307 Dresden, Germany
| | - Michael Breucha
- grid.461742.2Division of Translational Surgical Oncology (TSO), National Center for Tumor Diseases (NCT), Partner Site Dresden, 01307 Dresden, Germany ,grid.412282.f0000 0001 1091 2917Department of Visceral, Thoracic and Vascular Surgery, Faculty of Medicine, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Felix von Bechtolsheim
- grid.4488.00000 0001 2111 7257Centre for Tactile Internet with Human-in-the-Loop (CeTI), TU Dresden, 01062 Dresden, Germany ,grid.412282.f0000 0001 1091 2917Department of Visceral, Thoracic and Vascular Surgery, Faculty of Medicine, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Jens R. Helmert
- grid.4488.00000 0001 2111 7257Centre for Tactile Internet with Human-in-the-Loop (CeTI), TU Dresden, 01062 Dresden, Germany ,grid.4488.00000 0001 2111 7257Engineering Psychology and Applied Cognitive Research, Faculty of Psychology, TU Dresden, 01062 Dresden, Germany
| | - Jürgen Weitz
- grid.4488.00000 0001 2111 7257Centre for Tactile Internet with Human-in-the-Loop (CeTI), TU Dresden, 01062 Dresden, Germany ,grid.412282.f0000 0001 1091 2917Department of Visceral, Thoracic and Vascular Surgery, Faculty of Medicine, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Sebastian Pannasch
- grid.4488.00000 0001 2111 7257Centre for Tactile Internet with Human-in-the-Loop (CeTI), TU Dresden, 01062 Dresden, Germany ,grid.4488.00000 0001 2111 7257Engineering Psychology and Applied Cognitive Research, Faculty of Psychology, TU Dresden, 01062 Dresden, Germany
| | - Stefanie Speidel
- grid.461742.2Division of Translational Surgical Oncology (TSO), National Center for Tumor Diseases (NCT), Partner Site Dresden, 01307 Dresden, Germany ,grid.4488.00000 0001 2111 7257Centre for Tactile Internet with Human-in-the-Loop (CeTI), TU Dresden, 01062 Dresden, Germany
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Choi Y, Jeon WS, Cho JM, Jeong HG, Shin Y, Park W. Access opening guide produced using a 3D printer (AOG-3DP) as an effective tool in difficult cases for dental students. J Dent Educ 2021; 85:1640-1645. [PMID: 34131924 DOI: 10.1002/jdd.12705] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 04/19/2021] [Accepted: 05/23/2021] [Indexed: 11/08/2022]
Abstract
OBJECTIVES The aim of this study was to determine the effectiveness of using an access opening guide in teaching ideal access opening shape and preventing excessive tooth loss, with a focus on predoctoral dental students. METHODS Ninety teeth that were mounted in a box just below the level of the cementoenamel junction using tray resin were randomly divided into two study groups. An access opening guide produced using a 3D printer (AOG-3DP) was designed using cone-beam computed tomography (CBCT). The AOG-3DP was applied in the test groups, while no aid was used in the control group. Access preparations in both groups performed by predoctoral dental students were scanned using CBCT to detect overpreparation. The preparation time and access cavity volume were evaluated. RESULTS The mean times required for achieving access opening were 327.2 and 97.4 s in the control and AOG-3DP groups, respectively, for premolars, and 547.4 and 104.5 s for molars. The mean volumes for premolars and molars differed from the ideal cavities by 38.1 and 72.2 mm3 , respectively, in the control group, and by -2.0 and -8.7 mm3 the AOG-3DP group. CONCLUSIONS Using the AOG-3DP significantly reduced the access opening time for premolars and molars. However, there is a limitation in that CBCT DICOM images must be converted to stereolithographic .stl files in order to be printed via 3D technology. This requires additional preclinical treatment time for imaging and subsequent printing. It could be considered that this can be a useful method in difficult cases.
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Affiliation(s)
- Yiseul Choi
- Department of Advanced General Dentistry and Human Identification Research Institute, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Woo Seok Jeon
- Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Jung Min Cho
- Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Ho-Gul Jeong
- Imaging Dentistry Research Center, InVisionLab Inc., Seoul, Republic of Korea
| | - Yooseok Shin
- Department of Conservative Dentistry and Oral Science Research Center, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Wonse Park
- Department of Advanced General Dentistry, Yonsei University College of Dentistry, Seoul, Republic of Korea
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Lee J, Lee JB, Yun J, Rhyu IC, Lee YM, Lee SM, Lee MK, Kim B, Kim P, Koo KT. The impact of surface treatment in 3-dimensional printed implants for early osseointegration: a comparison study of three different surfaces. Sci Rep 2021; 11:10453. [PMID: 34001989 PMCID: PMC8129142 DOI: 10.1038/s41598-021-89961-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 04/29/2021] [Indexed: 11/13/2022] Open
Abstract
3D printing technology has been gradually applied to various areas. In the present study, 3D-printed implants were fabricated with direct metal laser sintering technique for a dental single root with titanium. The 3D implants were allocated into following groups: not treated (3D-None), sandblasted with a large grit and acid-etched (3D-SLA), and target-ion-induced plasma-sputtered surface (3D-TIPS). Two holes were drilled in each tibia of rabbit, and the three groups of implants were randomly placed with a mallet. Rabbits were sacrificed at two, four, and twelve weeks after the surgery. Histologic and histomorphometric analyses were performed for the evaluation of mineralized bone-to-implant contact (mBIC), osteoid-to-implant contact (OIC), total bone-to-implant contact (tBIC), mineralized bone area fraction occupancy (mBAFO), osteoid area fraction occupancy (OAFO), and total bone area fraction occupancy (tBAFO) in the inner and outer areas of lattice structure. At two weeks, 3D-TIPS showed significantly higher inner and outer tBIC and inner tBAFO compared with other groups. At four weeks, 3D-TIPS showed significantly higher outer OIC than 3D-SLA, but there were no significant differences in other variables. At twelve weeks, there were no significant differences. The surface treatment with TIPS in 3D-printed implants could enhance the osseointegration process in the rabbit tibia model, meaning that earlier osseointegration could be achieved.
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Affiliation(s)
- Jungwon Lee
- One-Stop Specialty Center, Seoul National University Dental Hospital, Seoul, Republic of Korea.,Department of Periodontology and Dental Research Institute, School of Dentistry, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Jun-Beom Lee
- Department of Periodontology and Dental Research Institute, School of Dentistry, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Junseob Yun
- Department of Periodontology and Dental Research Institute, School of Dentistry, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - In-Chul Rhyu
- Department of Periodontology and Dental Research Institute, School of Dentistry, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Yong-Moo Lee
- Department of Periodontology and Dental Research Institute, School of Dentistry, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Sung-Mi Lee
- Department of Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea.,Biomedical Implant Convergence Research Center, Advanced Institutes of Convergence Technology, Suwon, Korea
| | - Min-Kyu Lee
- Department of Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea
| | - Byoungkook Kim
- 3D Printer R&D Team, Dentium Co., Ltd., Suwon, Republic of Korea
| | - Pangyu Kim
- 3D Printer R&D Team, Dentium Co., Ltd., Suwon, Republic of Korea
| | - Ki-Tae Koo
- Department of Periodontology and Dental Research Institute, School of Dentistry, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea.
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21
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Polymer 3D Printing Review: Materials, Process, and Design Strategies for Medical Applications. Polymers (Basel) 2021; 13:polym13091499. [PMID: 34066639 PMCID: PMC8124560 DOI: 10.3390/polym13091499] [Citation(s) in RCA: 82] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 04/23/2021] [Indexed: 12/12/2022] Open
Abstract
Polymer 3D printing is an emerging technology with recent research translating towards increased use in industry, particularly in medical fields. Polymer printing is advantageous because it enables printing low-cost functional parts with diverse properties and capabilities. Here, we provide a review of recent research advances for polymer 3D printing by investigating research related to materials, processes, and design strategies for medical applications. Research in materials has led to the development of polymers with advantageous characteristics for mechanics and biocompatibility, with tuning of mechanical properties achieved by altering printing process parameters. Suitable polymer printing processes include extrusion, resin, and powder 3D printing, which enable directed material deposition for the design of advantageous and customized architectures. Design strategies, such as hierarchical distribution of materials, enable balancing of conflicting properties, such as mechanical and biological needs for tissue scaffolds. Further medical applications reviewed include safety equipment, dental implants, and drug delivery systems, with findings suggesting a need for improved design methods to navigate the complex decision space enabled by 3D printing. Further research across these areas will lead to continued improvement of 3D-printed design performance that is essential for advancing frontiers across engineering and medicine.
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Three-Dimensional Printing of Hydroxyapatite Composites for Biomedical Application. CRYSTALS 2021. [DOI: 10.3390/cryst11040353] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Hydroxyapatite (HA) and HA-based nanocomposites have been recognized as ideal biomaterials in hard tissue engineering because of their compositional similarity to bioapatite. However, the traditional HA-based nanocomposites fabrication techniques still limit the utilization of HA in bone, cartilage, dental, applications, and other fields. In recent years, three-dimensional (3D) printing has been shown to provide a fast, precise, controllable, and scalable fabrication approach for the synthesis of HA-based scaffolds. This review therefore explores available 3D printing technologies for the preparation of porous HA-based nanocomposites. In the present review, different 3D printed HA-based scaffolds composited with natural polymers and/or synthetic polymers are discussed. Furthermore, the desired properties of HA-based composites via 3D printing such as porosity, mechanical properties, biodegradability, and antibacterial properties are extensively explored. Lastly, the applications and the next generation of HA-based nanocomposites for tissue engineering are discussed.
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Khorsandi D, Fahimipour A, Abasian P, Saber SS, Seyedi M, Ghanavati S, Ahmad A, De Stephanis AA, Taghavinezhaddilami F, Leonova A, Mohammadinejad R, Shabani M, Mazzolai B, Mattoli V, Tay FR, Makvandi P. 3D and 4D printing in dentistry and maxillofacial surgery: Printing techniques, materials, and applications. Acta Biomater 2021; 122:26-49. [PMID: 33359299 DOI: 10.1016/j.actbio.2020.12.044] [Citation(s) in RCA: 115] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 12/16/2020] [Accepted: 12/17/2020] [Indexed: 12/12/2022]
Abstract
3D and 4D printing are cutting-edge technologies for precise and expedited manufacturing of objects ranging from plastic to metal. Recent advances in 3D and 4D printing technologies in dentistry and maxillofacial surgery enable dentists to custom design and print surgical drill guides, temporary and permanent crowns and bridges, orthodontic appliances and orthotics, implants, mouthguards for drug delivery. In the present review, different 3D printing technologies available for use in dentistry are highlighted together with a critique on the materials available for printing. Recent reports of the application of these printed platformed are highlighted to enable readers appreciate the progress in 3D/4D printing in dentistry.
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Zubizarreta-Macho Á, Castillo-Amature C, Montiel-Company JM, Mena-Álvarez J. Efficacy of Computer-Aided Static Navigation Technique on the Accuracy of Endodontic Microsurgery. A Systematic Review and Meta-Analysis. J Clin Med 2021; 10:jcm10020313. [PMID: 33467707 PMCID: PMC7830386 DOI: 10.3390/jcm10020313] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 01/12/2021] [Accepted: 01/12/2021] [Indexed: 12/22/2022] Open
Abstract
The aim of this systematic review and meta-analysis was to analyze the efficacy of the computer-aided static navigation technique on the accuracy of root apex location in endodontic microsurgery. MATERIAL AND METHODS A systematic literature review and meta-analysis, based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) recommendations, of clinical studies that evaluated the apex location rate of the computer-aided static navigation techniques applied to endodontic microsurgery. A total of four databases were consulted in the literature search: Pubmed-Medline, Scopus, Cochrane, and Web of Science. After eliminating duplicated articles and applying the inclusion criteria, seven articles were selected for the qualitative and the quantitative analysis. RESULTS The root apex location success rate stated at 96.8% (confidence interval (CI): 93.0-100%) of the cases performed through a computer-aided static navigation technique. The prediction interval ranges from 91.4% to 100%. The meta-analysis did not detect heterogeneity between the combined studies (Q-test = 6.15; p-value = 0.407; I2 = 2.4%). The computer-aided static navigation techniques showed a root apex location success rate 27 times higher than conventional endodontic microsurgery procedures (Q test = 0.80; p = 0.671; I2 = 0%). Three studies of computer-aided static navigation techniques and control group were compared using a random effects model with the Mantel-Haenszel method with a statistically significant odds success ratio of 27.7, with a 95% confidence interval between 11.3 and 68.1 (z test = 7.23; p < 0.0001). CONCLUSIONS According to in vitro studies analyzed, endodontic microsurgeries performed through computer-aided static navigation techniques show a high precision.
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Affiliation(s)
- Álvaro Zubizarreta-Macho
- Department of Endodontics, Faculty of Health Sciences, Alfonso X El Sabio University, 28691 Madrid, Spain; (Á.Z.-M.); (C.C.-A.)
| | - César Castillo-Amature
- Department of Endodontics, Faculty of Health Sciences, Alfonso X El Sabio University, 28691 Madrid, Spain; (Á.Z.-M.); (C.C.-A.)
| | - José María Montiel-Company
- Department of Stomatology, Faculty of Medicine and Dentistry, University of Valencia, 46010 Valencia, Spain;
| | - Jesús Mena-Álvarez
- Department of Endodontics, Faculty of Health Sciences, Alfonso X El Sabio University, 28691 Madrid, Spain; (Á.Z.-M.); (C.C.-A.)
- Correspondence:
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Pillai S, Upadhyay A, Khayambashi P, Farooq I, Sabri H, Tarar M, Lee KT, Harb I, Zhou S, Wang Y, Tran SD. Dental 3D-Printing: Transferring Art from the Laboratories to the Clinics. Polymers (Basel) 2021; 13:polym13010157. [PMID: 33406617 PMCID: PMC7795531 DOI: 10.3390/polym13010157] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/14/2020] [Accepted: 12/30/2020] [Indexed: 12/13/2022] Open
Abstract
The rise of three-dimensional (3D) printing technology has changed the face of dentistry over the past decade. 3D printing is a versatile technique that allows the fabrication of fully automated, tailor-made treatment plans, thereby delivering personalized dental devices and aids to the patients. It is highly efficient, reproducible, and provides fast and accurate results in an affordable manner. With persistent efforts among dentists for refining their practice, dental clinics are now acclimatizing from conventional treatment methods to a fully digital workflow to treat their patients. Apart from its clinical success, 3D printing techniques are now employed in developing haptic simulators, precise models for dental education, including patient awareness. In this narrative review, we discuss the evolution and current trends in 3D printing applications among various areas of dentistry. We aim to focus on the process of the digital workflow used in the clinical diagnosis of different dental conditions and how they are transferred from laboratories to clinics. A brief outlook on the most recent manufacturing methods of 3D printed objects and their current and future implications are also discussed.
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Affiliation(s)
- Sangeeth Pillai
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada; (S.P.); (A.U.); (P.K.); (H.S.); (M.T.); (K.T.L.); (I.H.); (S.Z.); (Y.W.)
| | - Akshaya Upadhyay
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada; (S.P.); (A.U.); (P.K.); (H.S.); (M.T.); (K.T.L.); (I.H.); (S.Z.); (Y.W.)
| | - Parisa Khayambashi
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada; (S.P.); (A.U.); (P.K.); (H.S.); (M.T.); (K.T.L.); (I.H.); (S.Z.); (Y.W.)
| | - Imran Farooq
- Faculty of Dentistry, University of Toronto, Toronto, ON M5S 1A1, Canada;
| | - Hisham Sabri
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada; (S.P.); (A.U.); (P.K.); (H.S.); (M.T.); (K.T.L.); (I.H.); (S.Z.); (Y.W.)
| | - Maryam Tarar
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada; (S.P.); (A.U.); (P.K.); (H.S.); (M.T.); (K.T.L.); (I.H.); (S.Z.); (Y.W.)
| | - Kyungjun T. Lee
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada; (S.P.); (A.U.); (P.K.); (H.S.); (M.T.); (K.T.L.); (I.H.); (S.Z.); (Y.W.)
| | - Ingrid Harb
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada; (S.P.); (A.U.); (P.K.); (H.S.); (M.T.); (K.T.L.); (I.H.); (S.Z.); (Y.W.)
| | - Stephanie Zhou
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada; (S.P.); (A.U.); (P.K.); (H.S.); (M.T.); (K.T.L.); (I.H.); (S.Z.); (Y.W.)
| | - Yifei Wang
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada; (S.P.); (A.U.); (P.K.); (H.S.); (M.T.); (K.T.L.); (I.H.); (S.Z.); (Y.W.)
| | - Simon D. Tran
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada; (S.P.); (A.U.); (P.K.); (H.S.); (M.T.); (K.T.L.); (I.H.); (S.Z.); (Y.W.)
- Correspondence: ; Tel.: +1-514-398-7203
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A 3D-CT Analysis of Femoral Symmetry-Surgical Implications. J Clin Med 2020; 9:jcm9113546. [PMID: 33153138 PMCID: PMC7693666 DOI: 10.3390/jcm9113546] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 10/30/2020] [Accepted: 10/31/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Mirroring the image of the affected side is a widely used technique for surgical planning in orthopedic surgery, especially for fractures and custom-made prostheses. Our objective is to evaluate the three-dimensional symmetry of the femurs using finite element analysis and manual alignment. METHODS Using the computed tomography of 15 patients without lower limb pathology, 30 3D biomodels of their femurs were obtained. The error obtained through image manipulation was calculated and broken down into a rendering error and a manual overlay error. The Hausdorff-Besicovitch method was applied to obtain the total asymmetry. The manipulation error was theb subtracted from it to obtain the intrapersonal asymmetry. RESULTS The mean intrapersonal asymmetry was 0.93 mm. It was obtained by subtracting the error derived from rendering and alignment of 0.59 mm (SD 0.17 mm) from the overall mean error of 1.52 mm (SD 1.45). CONCLUSIONS Intrapersonal femoral asymmetry is low enough to use the mirror image of the healthy side as a reference for three-dimensional surgical planning. This type of planning is especially useful in deformity surgery when the objective of the surgery is not to restore only one specific parameter but to obtain a general functional morphology when a healthy contralateral femur is available.
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Torres A, Lerut K, Lambrechts P, Jacobs R. Guided Endodontics: Use of a Sleeveless Guide System on an Upper Premolar with Pulp Canal Obliteration and Apical Periodontitis. J Endod 2020; 47:133-139. [PMID: 33045264 DOI: 10.1016/j.joen.2020.09.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 09/04/2020] [Accepted: 09/10/2020] [Indexed: 11/27/2022]
Abstract
Guided endodontics has been used for the treatment of anterior teeth with a successful outcome. This approach is not only limited to anterior teeth because it can also be used for the treatment of premolars and molars. However, in such cases, space may be a limitation because a long bur has to be used in addition to the guide being placed on top of the teeth. The aim of this case report was to present a novel guided endodontics technique using a sleeveless 3-dimensional-printed guide. This design can reduce vertical space, allowing an open view of the tooth and irrigation during drilling. A 46-year-old female patient consulted the endodontic department with intermittent pain around tooth #5. Tooth #5 presented pain upon percussion and responded negative to a cold test. The initial periapical radiograph revealed an apical radiolucency with pulp canal obliteration. Clinically, there was no sinus tract. The tooth was diagnosed with pulp necrosis and symptomatic apical periodontitis. Guided endodontic treatment was performed with a sleeveless 3-dimensional-printed guide and long neck carbide bur with a head diameter of 1 mm to drill a minimally invasive access cavity up to the root canal. A completely healed apical area of tooth #5 was visible after 1 year on periapical radiographs. This technique seems to be a promising alternative in comparison with the conventional guided endodontic guide design for the negotiation of pulp canal obliteration in cases in which vertical space is limited.
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Affiliation(s)
- Andres Torres
- OMFS-IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, University of Leuven, Leuven, Belgium; Department of Oral Health Sciences, University Hospitals Leuven, Endodontology, KU Leuven, Leuven, Belgium.
| | - Kathleen Lerut
- Department of Oral Health Sciences, University Hospitals Leuven, Endodontology, KU Leuven, Leuven, Belgium
| | - Paul Lambrechts
- Department of Oral Health Sciences, University Hospitals Leuven, Endodontology, KU Leuven, Leuven, Belgium
| | - Reinhilde Jacobs
- OMFS-IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, University of Leuven, Leuven, Belgium; Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium; Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
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Gao J, Li J, Liu C, Fan L, Yu J, Yu H. A stereolithographic template for computer-assisted teeth preparation in dental esthetic ceramic veneer treatment. J ESTHET RESTOR DENT 2020; 32:763-769. [PMID: 32851792 DOI: 10.1111/jerd.12644] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/25/2020] [Accepted: 07/28/2020] [Indexed: 02/05/2023]
Abstract
OBJECTIVE This article describes a digital dental esthetic ceramic veneer treatment workflow using a stereolithographic template for teeth preparation. CLINICAL CONSIDERATIONS We have presented the case of a 33-year-old woman with dental fluorosis who wanted an esthetic ceramic veneer treatment. A digital smile design was created on a virtual patient, and a virtual diagnostic wax-up was made. Based on the suggested ceramic material thickness, virtual teeth preparation was performed on the diagnostic wax-up. A special-teeth preparation template was then created digitally and fabricated using a stereolithographic technique. This template guided the teeth preparation using a special bur with a stopper. The veneers were fabricated by CAD/CAM and delivered good esthetics and function. CONCLUSIONS The stereolithographic tooth reduction template helps realize digital restorative planning. It provides better control of the reduction depth of the labial and incisal preparation, making the operation simpler. CLINICAL SIGNIFICANCE The digital dental esthetic ceramic veneer treatment workflow described here using a stereolithographic template for teeth preparation helped with the accurate control of reduction depth for minimally invasive teeth preparation, making the operation simpler, which is a significant improvement over the previous methods.
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Affiliation(s)
- Jing Gao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Junying Li
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, Michigan, USA
| | - Chunxu Liu
- Department of Dental Technology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Lin Fan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jiayi Yu
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, Michigan, USA
| | - Haiyang Yu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Nesic D, Schaefer BM, Sun Y, Saulacic N, Sailer I. 3D Printing Approach in Dentistry: The Future for Personalized Oral Soft Tissue Regeneration. J Clin Med 2020; 9:E2238. [PMID: 32679657 PMCID: PMC7408636 DOI: 10.3390/jcm9072238] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/09/2020] [Accepted: 07/10/2020] [Indexed: 12/21/2022] Open
Abstract
Three-dimensional (3D) printing technology allows the production of an individualized 3D object based on a material of choice, a specific computer-aided design and precise manufacturing. Developments in digital technology, smart biomaterials and advanced cell culturing, combined with 3D printing, provide promising grounds for patient-tailored treatments. In dentistry, the "digital workflow" comprising intraoral scanning for data acquisition, object design and 3D printing, is already in use for manufacturing of surgical guides, dental models and reconstructions. 3D printing, however, remains un-investigated for oral mucosa/gingiva. This scoping literature review provides an overview of the 3D printing technology and its applications in regenerative medicine to then describe 3D printing in dentistry for the production of surgical guides, educational models and the biological reconstructions of periodontal tissues from laboratory to a clinical case. The biomaterials suitable for oral soft tissues printing are outlined. The current treatments and their limitations for oral soft tissue regeneration are presented, including "off the shelf" products and the blood concentrate (PRF). Finally, tissue engineered gingival equivalents are described as the basis for future 3D-printed oral soft tissue constructs. The existing knowledge exploring different approaches could be applied to produce patient-tailored 3D-printed oral soft tissue graft with an appropriate inner architecture and outer shape, leading to a functional as well as aesthetically satisfying outcome.
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Affiliation(s)
- Dobrila Nesic
- Division of Fixed Prosthodontics and Biomaterials, University Clinic of Dental Medicine, University of Geneva, Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland; (Y.S.); (I.S.)
| | | | - Yue Sun
- Division of Fixed Prosthodontics and Biomaterials, University Clinic of Dental Medicine, University of Geneva, Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland; (Y.S.); (I.S.)
| | - Nikola Saulacic
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse 10, CH-3010 Bern, Switzerland;
| | - Irena Sailer
- Division of Fixed Prosthodontics and Biomaterials, University Clinic of Dental Medicine, University of Geneva, Rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland; (Y.S.); (I.S.)
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Vandenberghe B. The crucial role of imaging in digital dentistry. Dent Mater 2020; 36:581-591. [PMID: 32299666 DOI: 10.1016/j.dental.2020.03.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 03/09/2020] [Indexed: 10/24/2022]
Abstract
One of the recent trends in dentistry - and this in every field from the restorative to the orthodontic one- is the introduction of simplified completely digital workflows. Digital dentistry is supposed to allow dentists to work more efficiently, and this at higher precision, and with the possibility of all-in-one sessions using in-house computerized techniques. In this workflow, one of the major tools for simulating and transferring dental treatments is imaging. Both 3D low dose radiographic as well as optical imaging are playing crucial roles and have been overwhelming the market. Novel design platforms, compact and extremely fast milling and printing units are now also plentiful and rapidly being adopted in practice. Nevertheless, many of the steps in this digital dentistry process, no matter how simplified, present risks that can contribute to reduced precision and clinical difficulties. It is therefore the purpose of the article to briefly describe the role of imaging in this digital workflow, and where the pitfalls can be found that may lead to errors and imprecision.
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Affiliation(s)
- Bart Vandenberghe
- Advimago, Center for Advanced Oral Imaging, Emile Clausstraat 42, 1050 Brussels, Belgium.
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Computed Tomography versus Optical Scanning: A Comparison of Different Methods of 3D Data Acquisition for Tooth Replication. BIOMED RESEARCH INTERNATIONAL 2019; 2019:4985121. [PMID: 31093500 PMCID: PMC6481121 DOI: 10.1155/2019/4985121] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 03/05/2019] [Accepted: 04/01/2019] [Indexed: 12/13/2022]
Abstract
Objectives The study aimed to compare the accuracy of different methods of data acquisition and data reconstruction and to assess their usefulness for 3D printing of tooth replicas. Methods 3-dimensional models of molar and canine teeth obtain utilizing CBCT examination with different protocols, and optical scanning was compared with models derived from micro-computed (micro-CT) examination using Geomagic Studio Qualify software. A pairwise comparison of 3D models with analysis of standard deviation and the value of the mean distance of given surfaces was performed. Results Standard deviation and the value of the mean distance were lowest for optical scanning followed by CBC in high and standard resolution in all tested protocols. Models, obtained with high-resolution CBCT protocols, of teeth in and outside of alveolar bone showed similar average distance parameters, but standard deviation parameter was significantly lower for models of teeth scanned outside of the socket. Good surface representation on all models was seen at relatively smooth areas while in areas of high changes in the geometry CBCT based models performed inferiorly to those obtained from an optical scanner. Conclusions In case of teeth of noncomplicated texture, independently from a position (within or outside the alveolar socket), the high-resolution CBCT seems to be a sufficient method to obtain data for 3D printed tooth replica. Optical scanning performs better when a detailed replica is necessary.
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Gul M, Arif A, Ghafoor R. Role of three-dimensional printing in periodontal regeneration and repair: Literature review. J Indian Soc Periodontol 2019; 23:504-510. [PMID: 31849394 PMCID: PMC6906903 DOI: 10.4103/jisp.jisp_46_19] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Three-dimensional (3D) printing is the process of building 3D objects by additive manufacturing approach. It is being used in endodontics, periodontology, maxillofacial surgery, prosthodontics, orthodontics, and restorative dentistry, but our review article is focused on periodontal application. A detailed literature search was done on PubMed/Medline and Google Scholar using various key terms. A total of 45 articles were included in this study. Most of the studies were in vitro, preclinical, case reports, retrospective, and prospective studies. Few clinical trials have also been done. Periodontal applications included education models, scaffolds, socket preservation, and sinus and bone augmentation and guided implant placement. It showed better alveolar ridge preservation, better regenerative capabilities, greater reduction in pocket depth and bony fill, ease of implant placement in complex cases with greater precision and reduced time with improved outcome and an important tool for education and training using simulated models.
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Affiliation(s)
- Meisha Gul
- Department of Surgery, JHS Building 1st Floor Dental Clinics, Aga Khan University Hospital, Karachi, Pakistan
| | - Aysha Arif
- Department of Surgery, JHS Building 1st Floor Dental Clinics, Aga Khan University Hospital, Karachi, Pakistan
| | - Robia Ghafoor
- Department of Surgery, JHS Building 1st Floor Dental Clinics, Aga Khan University Hospital, Karachi, Pakistan
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Oberoi G, Nitsch S, Edelmayer M, Janjić K, Müller AS, Agis H. 3D Printing-Encompassing the Facets of Dentistry. Front Bioeng Biotechnol 2018; 6:172. [PMID: 30525032 PMCID: PMC6262086 DOI: 10.3389/fbioe.2018.00172] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 10/29/2018] [Indexed: 12/14/2022] Open
Abstract
This narrative review presents an overview on the currently available 3D printing technologies and their utilization in experimental, clinical and educational facets, from the perspective of different specialties of dentistry, including oral and maxillofacial surgery, orthodontics, endodontics, prosthodontics, and periodontics. It covers research and innovation, treatment modalities, education and training, employing the rapidly developing 3D printing process. Research-oriented advancement in 3D printing in dentistry is witnessed by the rising number of publications on this topic. Visualization of treatment outcomes makes it a promising clinical tool. Educational programs utilizing 3D-printed models stimulate training of dental skills in students and trainees. 3D printing has enormous potential to ameliorate oral health care in research, clinical treatment, and education in dentistry.
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Affiliation(s)
- Gunpreet Oberoi
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria.,Center for Medical Physics and Biomedical Engineering, Medical University Vienna, Vienna, Austria
| | - Sophie Nitsch
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.,Department of Health Sciences, FH Wien, University of Applied Sciences, Vienna, Austria
| | - Michael Edelmayer
- Austrian Cluster for Tissue Regeneration, Vienna, Austria.,Department of Oral Surgery, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
| | - Klara Janjić
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Anna Sonja Müller
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Hermann Agis
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
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Bastos JV, Côrtes MIDS. Pulp canal obliteration after traumatic injuries in permanent teeth - scientific fact or fiction? Braz Oral Res 2018; 32:e75. [PMID: 30365616 DOI: 10.1590/1807-3107bor-2018.vol32.0075] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Accepted: 06/07/2018] [Indexed: 01/01/2023] Open
Abstract
Pulp canal obliteration (PCO) is a frequent finding associated with pulpal revascularization after luxation injuries of young permanent teeth. The underlying mechanisms of PCO are still unclear, and no experimental scientific evidence is available, except the results of a single histopathological study. The lack of sound knowledge concerning this process gives rise to controversies, including the most suitable denomination. More than a mere semantic question, the denomination is an important issue, because it reflects the nature of this process, and directly impacts the treatment plan decision. The hypothesis that accelerated dentin deposition is related to the loss of neural control over odontoblastic secretory activity is well accepted, but demands further supportive studies. PCO is seen radiographically as a rapid narrowing of pulp canal space, whereas common clinical features are yellow crown discoloration and a lower or non-response to sensibility tests. Late development of pulp necrosis and periapical disease are rare complications after PCO, rendering prophylactic endodontic intervention useless. Indeed, yellowish or gray crown discoloration may pose a challenge to clinicians, and may demand endodontic intervention to help restore aesthetics. This literature review was conducted to discuss currently available information concerning PCO after traumatic dental injuries (TDI), and was gathered according to three topics: I) physiopathology of PCO after TDI; II) frequency and predictors of pulpal healing induced by PCO; and III) clinical findings related to PCO. Review articles, original studies and case reports were included aiming to support clinical decisions during the follow-up of teeth with PCO, and highlight future research strategies.
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Affiliation(s)
- Juliana Vilela Bastos
- Universidade Federal de Minas Gerais - UFMG, School of Dentistry, Department of Restorative Dentistry, Belo Horizonte, MG, Brazil
| | - Maria Ilma de Souza Côrtes
- Pontifícia Universidade Católica de Minas Gerais - PUC-MG, Department of Dentistry, Belo Horizonte, MG, Brazil
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Affiliation(s)
| | - Raju Vaishya
- Indraprastha Apollo Hospitals, New Delhi 94, Sukhdev Vihar Delhi, New Delhi, 110025, India
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