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Wang J, Wu YL, Ma J, Wu F, Li DH. A novel technique for implant-supported fixed complete rehabilitation based on a dynamic virtual patient. J Dent 2023; 137:104649. [PMID: 37574104 DOI: 10.1016/j.jdent.2023.104649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 07/28/2023] [Accepted: 08/01/2023] [Indexed: 08/15/2023] Open
Abstract
BACKGROUND A digital workflow for implant-supported fixed complete prostheses (ISFCP) using photogrammetry (PG), virtual articulator (VA), and virtual facebow (VF) data remains a challenge. METHODS The novel ISFCP technique included four steps: (1) formation of a dynamic virtual patient, (2) integration of PG data, (3) fabrication of a diagnostic ISFCP, and (4) fabrication of a definitive ISFCP and test of the deviation. RESULTS Dynamic virtual patients were formed by integrating PG, VA, and VF data. The cumulative root mean square deviation between the designed data and actual definitive prosthesis was 140.4 µm. CONCLUSIONS The novel technique for ISFCP fabrication described in this paper can help optimise the clinical efficiency and quality of ISFCP but requires an initial learning curve. CLINICAL SIGNIFICANCE This technique provides a direct workflow, using PG, VA, and VF data, to fabricate ISFCP based on the provisional restoration.
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Affiliation(s)
- Jing Wang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, PR China
| | - Yu-Lu Wu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of Dental Laboratory, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, PR China
| | - Jing Ma
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of Dental Laboratory, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, PR China
| | - Fan Wu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, PR China
| | - De-Hua Li
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, PR China.
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Hussein MO. Photogrammetry technology in implant dentistry: A systematic review. J Prosthet Dent 2023; 130:318-326. [PMID: 34801243 DOI: 10.1016/j.prosdent.2021.09.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 09/22/2021] [Accepted: 09/22/2021] [Indexed: 11/28/2022]
Abstract
STATEMENT OF PROBLEM Photogrammetry technology may be useful in implant dentistry, but a systematic review is lacking and is indicated before routine use in clinical practice. PURPOSE The purpose of this systematic review was to assess the role of the photogrammetry technology used in implant dentistry and determine its validity as an accurate tool with clinical applications. MATERIAL AND METHODS Four major databases, PubMed MEDLINE, Google Scholar, Scopus, and Web of Science, were selected to retrieve articles published from January 2011 to February 2021 based on custom criteria. The search was augmented by a manual search. After screening of the collected articles, data, including study design and setting, type of application, digitizer used, reference body, method of evaluation, and overall outcomes, were extracted. RESULTS Twenty articles were included based on the selection criteria. Most of the articles confirmed that the use of photogrammetry was promising as an implant coordinate transfer system. However, few articles showed its use for 3-dimensional scanning, which might require more development. CONCLUSIONS The initial reports of using photogrammetry technology considered this method as a valid and reliable clinical tool in implant dentistry. More studies to develop the photogrammetry technology and to assess the results with evidence-based research are recommended to enhance its application in different clinical situations.
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Affiliation(s)
- Mostafa Omran Hussein
- Associate Professor of Prosthodontics, Department of Prosthodontic Sciences, College of Dentistry in Ar Rass, Qassim University, El-Qassim, Saudi Arabia.
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Tohme H, Lawand G, Chmielewska M, Makhzoume J. Comparison between stereophotogrammetric, digital, and conventional impression techniques in implant-supported fixed complete arch prostheses: An in vitro study. J Prosthet Dent 2023; 129:354-362. [PMID: 34112521 DOI: 10.1016/j.prosdent.2021.05.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 05/07/2021] [Accepted: 05/07/2021] [Indexed: 11/26/2022]
Abstract
STATEMENT OF PROBLEM Conventional impressions and digital intraoral scanning for implant-supported fixed complete arch prostheses still have many problems that influence accuracy. Although stereophotogrammetry may offer a reliable alternative to other techniques, it has seldom been investigated. PURPOSE The purpose of this in vitro study was to measure and compare the intraoral scan body deviations of the reference cast with the intraoral scan body distortions obtained by conventional, digital, and stereophotogrammetric techniques. MATERIALS AND METHODS An edentulous maxillary "all-on-four" cast was prepared with 2 straight and two 17-degree angled screw-retained abutments screwed on the implant. Three capture techniques were compared: the conventional impression technique (CI group) using impression plaster (IP), the digital intraoral scanning (DIS group) technique, and the stereophotogrammetry (SPG group) technique. A calibrated extraoral scanner was used to digitize the definitive cast to compare its intraoral scan body positions with those of the other techniques in terms of global angular distortion and 3D deviations of the whole scan body and flat angled surface alone by using an inspection and metrology software program and the best fit alignment technique. The Kolmogorov-Smirnov and Shapiro-Wilk tests showed normal distribution of the quantitative variables. Thus, the repeated measures analyses of variance followed by univariate analysis and Bonferroni multiple comparison tests were performed to analyze the data (α=.05). RESULTS Significant global angular discrepancies and 3D deviations of the whole scan body and flat angled surface were found among the CI, DI, and SPG groups for both trueness (P<.001) and precision (P<.001). CONCLUSIONS The stereophotogrammetry capture technique reported the highest accuracy in terms of trueness and precision for the intraoral scan bodies of all the techniques evaluated. However, at the flat angled surface region of the scan body, higher trueness was detected with the digital technique. Conventional impressions showed better trueness results than the digital ones, but the opposite was true of precision.
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Affiliation(s)
- Hani Tohme
- Clinical Director of Postgraduate Program, Department of Removable Prosthodontics, Faculty of Dental Medicine, Saint Joseph University, Beirut, Lebanon.
| | - Ghida Lawand
- Post graduate student, Department of Prosthodontics and Esthetic Dentistry, Faculty of Dental Medicine, Saint Joseph University, Beirut, Lebanon
| | | | - Joseph Makhzoume
- Professor and Dean, Department of Removable Prosthodontics, Faculty of Dental Medicine, Saint Joseph University, Beirut, Lebanon
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Li J, Chen Z, Decker AM, Wang HL, Joda T, Mendonca G, Lepidi L. Trueness and Precision of Economical Smartphone-Based Virtual Facebow Records. J Prosthodont 2022; 31:22-29. [PMID: 33876857 PMCID: PMC8526632 DOI: 10.1111/jopr.13366] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2021] [Indexed: 01/03/2023] Open
Abstract
PURPOSE To investigate the trueness and precision of virtual facebow records using a smartphone as a three-dimensional (3D) face scanner. MATERIAL AND METHODS Twenty repeated virtual facebow records were performed on two subjects using a smartphone as a 3D face scanner. For each subject, a virtual facebow was attached to his/her maxillary arch, and face scans were performed using a smartphone with a 3D scan application. The subject's maxillary arch intraoral scan was aligned to the face scan by the virtual facebow fork. This procedure was repeated 10 times for each subject. To investigate if the maxillary scan is located at the right position to the face, these virtual facebow records were superimposed to a cone-beam computed tomography (CBCT) head scan from the same subject by matching the face scan to the 3D face reconstruction from CBCT images. The location of maxillary arch in virtual facebow records was compared with its position in CBCT. The "trueness" of the proposed procedure is defined as the deviation between maxilla arch position in virtual facebow records and the CBCT images. The "precision" is defined as the deviation between each virtual facebow record. The linear deviation at left central incisor (#9), left first molar (#14), and right first molar (#3), as well as angular deviation of occlusal plane were analyzed with descriptive statistics. Differences between two objects were also explored with Mann Whitney U test. RESULTS The 20 virtual facebow records using the smartphone 3D scanner deviated from the CBCT measurements (trueness) by 1.14 ± 0.40 mm at #9, 1.20 ± 0.50 mm at #14, 1.12 ± 0.51 mm at the #3, and 1.48 ± 0.56° in the occlusal plane. The VFTs deviated from each other by 1.06 ± 0.50 mm at #9, 1.09 ± 0.49 mm at #14, 1.11 ± 0.58 mm at #3, and 0.81 ± 0.58° in the occlusal plane. When all sites combined, the trueness was 1.14 ± 0.40 mm, and the precision was 1.08 ± 0.52 mm. Out of eight measurements, three measurements were significantly different between subjects. Nevertheless, the mean difference was small. CONCLUSIONS Virtual facebow records made using smartphone-based face scan can capture the maxilla position with high trueness and precision. The deviation can be anticipated as around 1 mm in linear distance and 1° in angulation.
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Affiliation(s)
- Junying Li
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI
| | - Zhaozhao Chen
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI
| | - Ann M. Decker
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI
| | - Hom-Lay Wang
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI
| | - Tim Joda
- Department of Reconstructive Dentistry, University Center for Dental Medicine Basel, University of Basel, Basel, Switzerland
| | - Gustavo Mendonca
- Department of Biologic & Materials Sciences, Division of Prosthodontics, University of Michigan School of Dentistry, Ann Arbor, MI
| | - Luca Lepidi
- Department of Clinical and Experimental Medicine, University of Foggia School of Dentistry, Foggia, Italy
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Tohme H, Lawand G, Eid R, Ahmed KE, Salameh Z, Makzoume J. Accuracy of Implant Level Intraoral Scanning and Photogrammetry Impression Techniques in a Complete Arch with Angled and Parallel Implants: An In Vitro Study. Applied Sciences 2021; 11:9859. [DOI: 10.3390/app11219859] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
(1) Background: Stereophotogrammetry has recently been investigated showing high accuracy in complete implant supported cases but has scarcely been investigated in cases of tilted implants. The aim of this in vitro study was to compare the accuracy of digital impression techniques (intraoral scanning and photogrammetry) at the level of intraoral scan bodies in terms of angular deviations and 3D discrepancies. (2) Methods: A stone master cast representing an edentulous maxilla using four implant analogs was fabricated. The two anterior implants were parallel to each other, and the two posterior implants were at an angulation of 17 degrees. Digital intraoral scanning (DIOS) impressions were taken after connecting implant level scan bodies to the master cast and STL files were exported (n = 15). Digital photogrammetry (DPG) impressions were captured using a PiC Camera after tightening implant level PiC optical markers and STL files were exported (n = 15). Superimposition was carried out by a software for determining the accuracy of both. (3) Results: Significant angular discrepancies (ΔA) and 3D deviations of scan bodies were found among the groups in trueness with lower deviations for the DPG (p value < 0.001). However, trueness within ISBs varied between angular and 3D deviations and outcomes were not specific to determine the effect of implant angulation. In precision, no significant differences were detected within ISBs and among both groups in terms of angular deviation. However, DPG had less deviations than DIOS group in terms of 3D deviations (p value < 0.001). (4) Conclusion: Digital photogrammetry technique conveyed the utmost accuracy in both trueness and precision for the intraoral scan bodies among both impression methods assessed. In addition, implant angulation did not influence the precision of the impression techniques but affected their trueness without explicit conclusions.
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Cicciù M, Fiorillo L, D’Amico C, Gambino D, Amantia EM, Laino L, Crimi S, Campagna P, Bianchi A, Herford AS, Cervino G. 3D Digital Impression Systems Compared with Traditional Techniques in Dentistry: A Recent Data Systematic Review. Materials (Basel) 2020; 13:E1982. [PMID: 32340384 PMCID: PMC7215909 DOI: 10.3390/ma13081982] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 04/14/2020] [Accepted: 04/21/2020] [Indexed: 12/13/2022]
Abstract
The advent of new technologies in the field of medicine and dentistry is giving improvements that lead the clinicians to have materials and procedures able to improve patients' quality of life. In dentistry, the last digital techniques offer a fully digital computerized workflow that does not include the standard multiple traditional phases. The purpose of this study is to evaluate all clinical trials and clinical randomized trials related to the digital or dental impression technique in prosthetic dentistry trying to give the readers global information about advantages and disadvantages of each procedure. Data collection was conducted in the main scientific search engines, including articles from the last 10 years, in order to obtain results that do not concern obsolete impression techniques. Elsevier, Pubmed and Embase have been screened as sources for performing the research. The results data demonstrated how the working time appears to be improved with digital workflow, but without a significant result (P = 0.72596). The papers have been selected following the Population Intervention Comparison Outcome (PICO) question, which is related to the progress on dental impression materials and technique. The comparison between dentists or practitioners with respect to classic impression procedures, and students open to new device and digital techniques seem to be the key factor on the final impression technique choice. Surely, digital techniques will end up supplanting the analogical ones altogether, improving the quality of oral rehabilitations, the economics of dental practice and also the perception by our patients.
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Affiliation(s)
- Marco Cicciù
- Department of Biomedical and Dental Sciences and Morphological and Functional Imaging, Messina University, 98100 Messina, Italy; (L.F.); (C.D.); (D.G.); (E.M.A.); (G.C.)
| | - Luca Fiorillo
- Department of Biomedical and Dental Sciences and Morphological and Functional Imaging, Messina University, 98100 Messina, Italy; (L.F.); (C.D.); (D.G.); (E.M.A.); (G.C.)
| | - Cesare D’Amico
- Department of Biomedical and Dental Sciences and Morphological and Functional Imaging, Messina University, 98100 Messina, Italy; (L.F.); (C.D.); (D.G.); (E.M.A.); (G.C.)
| | - Dario Gambino
- Department of Biomedical and Dental Sciences and Morphological and Functional Imaging, Messina University, 98100 Messina, Italy; (L.F.); (C.D.); (D.G.); (E.M.A.); (G.C.)
| | - Emanuele Mario Amantia
- Department of Biomedical and Dental Sciences and Morphological and Functional Imaging, Messina University, 98100 Messina, Italy; (L.F.); (C.D.); (D.G.); (E.M.A.); (G.C.)
| | - Luigi Laino
- Multidisciplinary Department of Medical-Surgical and Odontostomatological Specialties, University of Campania “Luigi Vanvitelli”, 80100 Naples, Italy;
| | - Salvatore Crimi
- Department of General Surgery and Medical Surgery Specialties, University of Catania, 95100 Catania, Italy; (S.C.); (P.C.); (A.B.)
| | - Paola Campagna
- Department of General Surgery and Medical Surgery Specialties, University of Catania, 95100 Catania, Italy; (S.C.); (P.C.); (A.B.)
| | - Alberto Bianchi
- Department of General Surgery and Medical Surgery Specialties, University of Catania, 95100 Catania, Italy; (S.C.); (P.C.); (A.B.)
| | - Alan Scott Herford
- Department of Oral and Maxillofacial Surgery, Loma Linda University, Loma Linda, CA 92354, USA;
| | - Gabriele Cervino
- Department of Biomedical and Dental Sciences and Morphological and Functional Imaging, Messina University, 98100 Messina, Italy; (L.F.); (C.D.); (D.G.); (E.M.A.); (G.C.)
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Lavorgna L, Cervino G, Fiorillo L, Di Leo G, Troiano G, Ortensi M, Galantucci L, Cicciù M. Reliability of a Virtual Prosthodontic Project Realized through a 2D and 3D Photographic Acquisition: An Experimental Study on the Accuracy of Different Digital Systems. Int J Environ Res Public Health 2019; 16:E5139. [PMID: 31888225 PMCID: PMC6950125 DOI: 10.3390/ijerph16245139] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/12/2019] [Accepted: 12/13/2019] [Indexed: 12/28/2022]
Abstract
AIMS The study aims to assess the accuracy of digital planning in dentistry, evaluating the characteristics of different intraoral 3D scanners and comparing it with traditional imaging 2D recording methods. Specifically, using computer aided design (CAD) software and measuring inside CAD software, authors want to verify the reliability of different models obtained with different techniques and machines. METHODS 12 patients that needed aesthetic restorative treatment were enrolled in the study. All the patients underwent recording data of the height and width dental elements 1.1, 1.2, and 1.3 size using different technologies and comparing 2D with 3D methods. A T test was then applied in order to verify whether there was a statistically significant difference between the measurements obtained, comparing the different tools data (Emerald, TRIOS, Photogrammetry and DSS (Digital Smile System)) with the reference values. RESULTS No significant differences emerged in the measurements made with the different scanners (Trios 3Shape ®, Planmeca Emerald ®) and photogrammetry. Therefore, what should be underlined regarding the 2D measurements is the speed and simplicity compared to all 3D techniques, so this work can help to better define the field of application and the limits connected to 2D techniques, giving a good window of the technique. CONCLUSIONS The low number of patients is not sufficient to provide statistically significant results, but the digital planning future prospects seem to be promising. This study results highlighted how a photogrammetric scanner for dental arches would only have a much smaller shooting field size and greater accuracy. Despite these considerations, the photogrammetric facial scanner provided excellent results for the measurement of individual teeth, showing a great versatility of use.
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Affiliation(s)
- Luca Lavorgna
- Private Practice, Telese Terme 82037, Italy; (L.L.); (G.D.L.)
| | - Gabriele Cervino
- Department of Biomedical and Dental Sciences, Morphological and Functional Images, University of Messina, 98100 Messina, Italy;
| | - Luca Fiorillo
- Department of Biomedical and Dental Sciences, Morphological and Functional Images, University of Messina, 98100 Messina, Italy;
| | - Giovanni Di Leo
- Private Practice, Telese Terme 82037, Italy; (L.L.); (G.D.L.)
| | - Giuseppe Troiano
- Department of Prosthodontics, University of Foggia, 71100 Foggia, Italy; (G.T.); (M.O.)
| | - Marco Ortensi
- Department of Prosthodontics, University of Foggia, 71100 Foggia, Italy; (G.T.); (M.O.)
| | - Luigi Galantucci
- Department of Mechanics and Mathematics Management, University of Bari, 70100 Bari, Italy;
| | - Marco Cicciù
- Department of Biomedical and Dental Sciences, Morphological and Functional Images, University of Messina, 98100 Messina, Italy;
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