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Sinada N, Wang CI. Fixed prosthodontic rehabilitation of a patient after bariatric surgery using a facially driven fully digital workflow: A clinical report with a 3-year follow-up. J Prosthet Dent 2024:S0022-3913(24)00139-2. [PMID: 38556404 DOI: 10.1016/j.prosdent.2024.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 01/31/2024] [Accepted: 02/02/2024] [Indexed: 04/02/2024]
Abstract
Patients who have received bariatric surgery have specific and complex dental needs. After surgery, nutrient deficiencies, osteoporosis, gastroesophageal reflux, and changes to the oral cavity may be seen, and erosion, caries, wear, xerostomia, hypersensitivity, and changes to the salivary buffering capacity may occur. In addition, patients are advised to ingest smaller, more frequent, meals throughout the day, and the oral condition may decline rapidly after surgery. Without oversight, this accelerated decline may even necessitate complete mouth rehabilitation postoperatively. Dental providers should be an integral part of the multidisciplinary management team of these patients. This clinical report describes a patient with a terminal dentition following bariatric surgery who underwent prosthodontic rehabilitation with a facially driven fully digital workflow.
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Ren S, Jiang X, Di P. Auxiliary occlusal devices for IO scanning in a complete digital workflow of implant-supported crowns: a randomized controlled trial. BMC Oral Health 2024; 24:374. [PMID: 38519905 PMCID: PMC10958945 DOI: 10.1186/s12903-024-03986-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Accepted: 02/05/2024] [Indexed: 03/25/2024] Open
Abstract
OBJECTIVES To compare the crown accuracy and time efficiency of a complete digital workflow, utilizing an auxiliary occlusal device and IO scanning, with a conventional workflow, for multiple implant-supported single crowns. MATERIALS AND METHODS 24 patients with two adjacent posterior implants were included. 12 patients were randomly assigned to digital workflow group, involving intra-oral scanning with an auxiliary occlusal device and manufacture of customized abutments and zirconia single crowns (test group). The other 12 were assigned to the conventional workflow (control group), involving conventional impression and CAD-CAM crowns based on stone casts. Crown scanning was done before and after clinical adjustment using an intraoral scanner. Two 3D digital models were overlapped to assess dimension changes. Chair-side and laboratory times for the entire workflow were recorded and a linear mixed model and Independent-sample t tests were used for the statistical analysis. RESULTS The maximum occlusal deviation was 279.67 ± 112.17 μm and 479.59 ± 203.63 μm in the test and control group, respectively (p < 0.001). The sizes of the occlusion adjustment areas were 12.12 ± 10.51 mm2 and 25.12 ± 14.14 mm2 in the test and control groups, respectively (p = 0.013). The mean laboratory time was 46.08 ± 5.45 and 105.92 ± 6.10 min in the test and control groups, respectively (p < 0.001).The proximal contact adjustment and mean chair-side time showed no statistically significant difference between two groups. CONCLUSIONS A digital workflow for two implants-supported single crowns using an auxiliary device required fewer occlusal crown adjustments, and less laboratory time compared to conventional workflow. CLINICAL RELEVANCE The use of auxiliary occlusal devices in IOS enhances the accuracy of virtual maxillomandibular relationship in extended edentulous spans. Consequently, employing a digital workflow for multiple implants-supported crowns using IO scanning and an auxiliary occlusal device proves to be a feasible, accurate and efficient approach.
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Affiliation(s)
- Shuxin Ren
- Department of Oral Implantology, Peking University School and Hospital of Stomatology, 22 Zhongguancun South Avenue, Haidian District, Beijing, 10081, PR China
| | - Xi Jiang
- Department of Oral Implantology, Peking University School and Hospital of Stomatology, 22 Zhongguancun South Avenue, Haidian District, Beijing, 10081, PR China.
| | - Ping Di
- Department of Oral Implantology, Peking University School and Hospital of Stomatology, 22 Zhongguancun South Avenue, Haidian District, Beijing, 10081, PR China
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Cheung K, Cheung W, Liu Y, Ye H, Lv L, Zhou Y. Establishment of a 3D esthetic analysis workflow on 3D virtual patient and preliminary evaluation. BMC Oral Health 2024; 24:328. [PMID: 38475773 DOI: 10.1186/s12903-024-04085-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND In esthetic dentistry, a thorough esthetic analysis holds significant role in both diagnosing diseases and designing treatment plans. This study established a 3D esthetic analysis workflow based on 3D facial and dental models, and aimed to provide an imperative foundation for the artificial intelligent 3D analysis in future esthetic dentistry. METHODS The established 3D esthetic analysis workflow includes the following steps: 1) key point detection, 2) coordinate system redetermination and 3) esthetic parameter calculation. The accuracy and reproducibility of this established workflow were evaluated by a self-controlled experiment (n = 15) in which 2D esthetic analysis and direct measurement were taken as control. Measurement differences between 3D and 2D analysis were evaluated with paired t-tests. RESULTS 3D esthetic analysis demonstrated high consistency and reliability (0.973 < ICC < 1.000). Compared with 2D measurements, the results from 3D esthetic measurements were closer to direct measurements regarding tooth-related esthetic parameters (P<0.05). CONCLUSIONS The 3D esthetic analysis workflow established for 3D virtual patients demonstrated a high level of consistency and reliability, better than 2D measurements in the precision of tooth-related parameter analysis. These findings indicate a highly promising outlook for achieving an objective, precise, and efficient esthetic analysis in the future, which is expected to result in a more streamlined and user-friendly digital design process. This study was registered with the Ethics Committee of Peking University School of Stomatology in September 2021 with the registration number PKUSSIRB-202168136.
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Affiliation(s)
- Kwantong Cheung
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Disease & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & NHC Key Laboratory of Digital Stomatology & NMPA Key Laboratory for Dental Materials, No. 22, Zhongguancun South Avenue, Haidian District, Beijing, 100081, China
| | - Waisze Cheung
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Disease & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & NHC Key Laboratory of Digital Stomatology & NMPA Key Laboratory for Dental Materials, No. 22, Zhongguancun South Avenue, Haidian District, Beijing, 100081, China
| | - Yunsong Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Disease & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & NHC Key Laboratory of Digital Stomatology & NMPA Key Laboratory for Dental Materials, No. 22, Zhongguancun South Avenue, Haidian District, Beijing, 100081, China
| | - Hongqiang Ye
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Disease & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & NHC Key Laboratory of Digital Stomatology & NMPA Key Laboratory for Dental Materials, No. 22, Zhongguancun South Avenue, Haidian District, Beijing, 100081, China
| | - Longwei Lv
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Disease & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & NHC Key Laboratory of Digital Stomatology & NMPA Key Laboratory for Dental Materials, No. 22, Zhongguancun South Avenue, Haidian District, Beijing, 100081, China.
| | - Yongsheng Zhou
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Disease & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & NHC Key Laboratory of Digital Stomatology & NMPA Key Laboratory for Dental Materials, No. 22, Zhongguancun South Avenue, Haidian District, Beijing, 100081, China.
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4
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Tohme H, Revilla-León M, Semaan LB, Lawand G. Facially driven guided crown lengthening using a complete digital workflow: A dental technique. J Prosthet Dent 2024:S0022-3913(24)00059-3. [PMID: 38388214 DOI: 10.1016/j.prosdent.2024.01.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/05/2024] [Accepted: 01/08/2024] [Indexed: 02/24/2024]
Abstract
A facially driven digital guided crown lengthening method using the virtual smile design approach supplemented with a static 3-dimensional face scan that demonstrates the digital data of extraoral soft tissue is presented. The technique enables the practitioner to virtually design the new smile and surgically plan the crown lengthening procedure.
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Affiliation(s)
- Hani Tohme
- Head, Digital Dentistry, Department of Digital Dentistry, AI, and Evolving Technologies, Saint Joseph University of Beirut, Beirut, Lebanon; and Director, Postgraduate Program, Department of Removable Prosthodontics, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon.
| | - Marta Revilla-León
- Affiliate Assistant Professor, Graduate Prosthodontics, Department of Restorative Dentistry, School of Dentistry, University of Washington, Seattle, Wash; Faculty and Director, Research and Digital Dentistry, Kois Center, Seattle, Wash; and Adjunct Professor, Graduate Prosthodontics, Department of Prosthodontics, School of Dental Medicine, Tufts University, Boston, Mass
| | - Layal Bou Semaan
- Postgraduate student, Department of Periodontics, Faculty of Dental Medicine, University of Alabama, Ala
| | - Ghida Lawand
- Clinical Instructor, Department of Fixed and Removable Prosthodontics, Faculty of Dentistry, Beirut Arab University, Beirut, Lebanon
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Gresnigt MMM, Jonker JA, van der Made SAM. The cantilever contact-point resin bonded bridge; adhesion 2.0. J ESTHET RESTOR DENT 2024; 36:37-46. [PMID: 38084818 DOI: 10.1111/jerd.13179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 11/26/2023] [Accepted: 11/27/2023] [Indexed: 01/23/2024]
Abstract
AIM When young patients are congenitally missing anterior teeth, different treatment modalities can be used to complement the dental arch. This article proposes a new treatment modality for the replacement of anterior teeth, the cantilever contact-point resin bonded bridge (CCP-RBB). MATERIALS AND METHODS In this proof of principle study, CCP-RBB's delivered by one operator were clinically assessed. Patients who were missing maxillary incisors and had suitable intra-oral conditions for a contact-point cantilever RBB were included. Three cases are presented to describe all adhesive steps. This proof of principle clinical study is presented with up to 60 months follow-up of the cantilever contact resin bonded bridges. RESULTS A total of 19 CCP-RBB's were evaluated after a mean period of 29.8 months. None of the restorations exhibited failure, carious lesions or fractures during the follow-up periods, demonstrating an absence of restoration debonding or the need for repair. CONCLUSION The new cantilever contact-point resin bonded bridge exhibited an excellent treatment modality without failure or debonding up to 5 years. More and extended duration in vivo studies are needed to evaluate this new treatment modality. CLINICAL SIGNIFICANCE In this proof of principle the new cantilever contact-point resin bonded bridge obtained excellent results up to 5 years of clinical follow-up.
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Affiliation(s)
- Marco M M Gresnigt
- Department of Restorative Dentistry and Biomaterials, Center for Dentistry and Oral Hygiene, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
- Department of Special Dental Care, Martini Hospital, Groningen, the Netherlands
| | - Joyce A Jonker
- Department of Restorative Dentistry and Biomaterials, Center for Dentistry and Oral Hygiene, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
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Gao H, Liu X, Zhou T, Tan J. Trueness of 4 sectional-cast digital methods for transferring the interocclusal relationship in complete mouth rehabilitation. J Prosthet Dent 2023:S0022-3913(23)00479-1. [PMID: 37696746 DOI: 10.1016/j.prosdent.2023.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 09/13/2023]
Abstract
STATEMENT OF PROBLEM An accurate digital workflow for transferring the interocclusal relationship from complete arch diagnostic interim restorations to complete arch tooth preparations is essential in complete mouth rehabilitation. However, research on the accuracy of digital cross-mounting methods is lacking. PURPOSE The purpose of this in vitro study was to compare the trueness of 4 sectional-cast digital cross-mounting methods in transferring the interocclusal relationship for complete mouth rehabilitation. MATERIAL AND METHODS Maxillary and mandibular anatomic typodonts were used to build complete arch tooth preparations and diagnostic interim restorations for complete mouth rehabilitation in vitro. Four sectional casts were designed: an anterior cast (AR), a posterior cast (PO), a unilateral cast (UL), and a tripod cast (TR). Both extraoral scanning (EOS) and intraoral scanning (IOS) were used to obtain intermediate digital sectional casts, which were cross-registered with diagnostic interim restorations and definitive casts to transfer the interocclusal relationship. Trueness was determined by assessing tooth distance deviation and mandibular 3-dimensional (3D) deviation. Differences among the 4 sectional-cast methods were analyzed with the Kruskal-Wallis test, and differences between the 2 scanning methods were analyzed with the Mann-Whitney U test (α=.05). RESULTS Significant differences in the trueness of interocclusal relationship transfer were observed among the 4 sectional-cast methods (P<.05). Regarding tooth overall distance deviation, TR-EOS found no statistically significant difference compared with PO-EOS (P>.05), but TR-EOS had half the overall distance deviation of PO-EOS. Both TR-EOS and PO-EOS had smaller deviations than the AR-EOS and UL-EOS groups (P<.05). TR-IOS had a smaller distance deviation than the AR-IOS, PO-IOS, and UL-IOS groups (P<.05). The overall distance deviation of EOS was significantly smaller than that of IOS in the TR and PO groups (P<.05). Regarding mandibular 3D deviation, TR-EOS found no statistically significant difference but had half the root mean square (RMS) of 3D deviation compared with the PO-EOS groups (P>.05). Both TR-EOS and PO-EOS groups had a smaller RMS than the AR-EOS and groups (P<.05). The TR-IOS group had a smaller RMS than the AR-IOS, PO-IOS, and UL-IOS groups (P<.05). The 3D deviation of EOS was significantly smaller than that of IOS in the PO group (P<.05). CONCLUSIONS Both EOS and IOS with the tripod sectional-cast digital method accurately transferred the interocclusal relationship for complete mouth rehabilitation.
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Affiliation(s)
- Hanqi Gao
- Lecturer, Department of Second Dental Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, PR China; Lecturer, Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, PR China
| | - Xiaoqiang Liu
- Associate Professor, Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - Ti Zhou
- Clinical Associate Professor, Department of Prosthodontics, Fushan Branch, Yantai Stomatology Hospital, Yantai, PR China
| | - Jianguo Tan
- Professor, Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, PR China..
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Na L, Hai B, Quan Y, Qiang Z. Application of orthodontics combined with porcelain laminate veneers in the aesthetic restoration and flora regulation of anterior teeth. Medicine (Baltimore) 2023; 102:e34340. [PMID: 37478279 PMCID: PMC10662840 DOI: 10.1097/md.0000000000034340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 06/23/2023] [Indexed: 07/23/2023] Open
Abstract
To evaluate the effectiveness of orthodontics in combination with porcelain laminate veneers (PLV) in the aesthetic restoration and flora regulation of anterior teeth. A retrospective analysis of 336 patients who underwent aesthetic restoration of anterior teeth in our hospital from April 2019 to September 2022 was performed and divided into a control group (n = 168) and an observation group (n = 168) according to the restorative modality. The restorative modality in the control group was conventional restorative remediation, while the restorative modality in the observation group was orthodontic combined with PLV treatment. To evaluate the excellent rate of aesthetic restoration of anterior teeth in the 2 groups, and compare the color, shape, degree of translucency, edge aesthetic score, complications and satisfaction rate of restoration of anterior teeth in the 2 groups before and after restoration. The observation group had a significantly higher rate of excellent aesthetic restorations (95.23%) compared to the control group (80.95%) (P < .001). The scores of anterior tooth color, morphology, degree of translucency and marginal aesthetics were improved in both groups after restoration compared to before restoration, and the scores were significantly higher in the observation group (P < .05). After restoration, the subgingival Digestive streptococcus, Campylobacter and Propionibacterium increased in both groups, but the number of bacterial strains was significantly less in the observation group (P < .05). Compared with the total complication rate in the control group (16.66%), the total complication rate in the observation group (2.38%) was significantly lower (P < .001). Compared with the control group (85.71%), the observation group had a significantly higher restoration satisfaction rate of 97.61%, with a statistically significant difference (P < .001). The application of orthodontics combined with PLV in the aesthetic restoration of anterior teeth has a significant clinical effect, which is conducive to improving the aesthetic restoration and satisfaction rate of anterior teeth, reducing the subgingival microbial imbalance and decreasing the incidence of complications.
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Affiliation(s)
- Lu Na
- Department of Stomatology, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, China
| | - Bai Hai
- Department of Stomatology, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, China
| | - Yuan Quan
- Department of Stomatology, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, China
| | - Zhang Qiang
- Department of Stomatology, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, China
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Andrews J, Alwafi A, Bichu YM, Pliska BT, Mostafa N, Zou B. Validation of three-dimensional facial imaging captured with smartphone-based photogrammetry application in comparison to stereophotogrammetry system. Heliyon 2023; 9:e15834. [PMID: 37180897 PMCID: PMC10172784 DOI: 10.1016/j.heliyon.2023.e15834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 04/18/2023] [Accepted: 04/25/2023] [Indexed: 05/16/2023] Open
Abstract
Statement of problem The development of facial scanners has improved capabilities to create three-dimensional (3D) virtual patients for accurate facial and smile analysis. However, most of these scanners are expensive, stationary and involve a significant clinical footprint. The use of the Apple iPhone and its integrated "TrueDepth" near-infrared (NIR) scanner combined with an image processing application (app) offers the potential to capture and analyze the unique 3D nature of the face; the accuracy and reliability of which are yet to be established for use in clinical dentistry. Purpose This study was designed to validate both the trueness and precision of the iPhone 11 Pro smartphone TrueDepth NIR scanner in conjunction with the Bellus3D Face app in capturing 3D facial images in a sample of adult participants in comparison to the conventional 3dMDface stereophotogrammetry system. Material and methods Twenty-nine adult participants were prospectively recruited. Eighteen soft tissue landmarks were marked on each participant's face before imaging. 3D facial images were captured using a 3dMDface system and the Apple iPhone TrueDepth NIR scanner combined with the Bellus3D Face app respectively. The best fit of each experimental model to the 3dMD scan was analyzed using Geomagic Control X software. The root mean square (RMS) was used to measure the "trueness" as the absolute deviation of each TrueDepth scan from the reference 3dMD image. Individual facial landmark deviations were also assessed to evaluate the reliability in different craniofacial regions. The "precision" of the smartphone was tested by taking 10 consecutive scans of the same subject and comparing those to the reference scan. Intra-observer and inter-observer reliabilities were assessed using the intra-class correlation coefficient (ICC). Results Relative to the 3dMDface system, the mean RMS difference of the iPhone/Bellus3D app was 0.86 ± 0.31 mm. 97% of all the landmarks were within 2 mm of error compared with the reference data. The ICC for intra-observer reproducibility or precision of the iPhone/Bellus3D app was 0.96, which was classified as excellent. The ICC for inter-observer reliability was 0.84, which was classified as good. Conclusions These results suggest that 3D facial images acquired with this system, the iPhone TrueDepth NIR camera in conjunction with the Bellus3D Face app, are clinically accurate and reliable. Judicious use is advised in clinical situations that require high degrees of detail due to a lack of image resolution and a longer acquisition time. Generally, this system possesses the potential to serve as a practical alternative to conventional stereophotogrammetry systems for use in a clinical setting due to its accessibility and relative ease of use and further research is planned to appraise its updated clinical use.
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Affiliation(s)
- James Andrews
- Graduate Orthodontics, Department of Oral Health Science, Faculty of Dentistry, University of British Columbia, Vancouver, Canada
| | - Abdulraheem Alwafi
- Faculty of Dentistry, Department of Dental Public Health, King Abdulaziz University, Jeddah, Saudi Arabia
| | | | - Benjamin T. Pliska
- Department of Oral Health Science, Faculty of Dentistry, University of British Columbia, Vancouver, Canada
| | - Nesrine Mostafa
- Department of Oral Health Science, Faculty of Dentistry, University of British Columbia, Vancouver, Canada
| | - Bingshuang Zou
- Department of Oral Health Science, Faculty of Dentistry, University of British Columbia, Vancouver, Canada
- Corresponding author. Department of Oral Health Science, Faculty of Dentistry, University of British Columbia 2199 Wesbrook Mall, Vancouver, BC, V6T 1Z3, Canada.
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Happe A, Blender S, Luthardt RG. Orthodontic pretreatment with aligners for optimizing the result prior to fixed restorations in the esthetic zone. J ESTHET RESTOR DENT 2023; 35:279-290. [PMID: 36591901 DOI: 10.1111/jerd.12997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 11/26/2022] [Accepted: 11/28/2022] [Indexed: 01/03/2023]
Abstract
OBJECTIVE To show the benefit of a minor orthodontic pretreatment prior to fixed restorations in the esthetic zone in challenging situations. OVERVIEW Esthetic rehabilitations in complex situations need careful treatment planning and comprehensive interdisciplinary approach. Minor orthodontic pretreatments may transfer complex situations into straight forward situations. Typical indications are space opening in order to provide space for a restoration with anatomic proportion or corrections of the tooth axis. CONCLUSION This article presents three clinical cases that show how decision making can be facilitated by a functional and esthetic wax-up/mock-up workflow and how orthodontic pretreatment can contribute to a more functional, less invasive, and more esthetic outcome of restorative treatments in the esthetic zone. CLINICAL SIGNIFICANCE Some complex cases in restorative dentistry can be transformed to straight forward cases with the help of minor orthodontic tooth movements.
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Affiliation(s)
- Arndt Happe
- Dentist/Oral Surgeon, Dr. Happe & Kollegen, Münster, Germany.,Department of Prosthetic Dentistry, Center of Dentistry, University of Ulm, Ulm, Germany
| | - Sarah Blender
- Department of Prosthetic Dentistry, Center of Dentistry, University of Ulm, Ulm, Germany
| | - Ralph G Luthardt
- Department of Prosthetic Dentistry, Center of Dentistry, University of Ulm, Ulm, Germany
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10
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Amin SA, Hann S, Elsheikh AK, Boltchi F, Zandinejad A. A complete digital approach for facially generated full arch diagnostic wax up, guided surgery, and implant-supported interim prosthesis by integrating 3D facial scanning, intraoral scan and CBCT. J Prosthodont 2023; 32:90-93. [PMID: 36169659 DOI: 10.1111/jopr.13605] [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: 06/18/2022] [Accepted: 09/06/2022] [Indexed: 01/25/2023] Open
Abstract
Continuous innovation in digital dental technology offers new prospects for creating a complete virtual environment. The technique described adds a facial approach to the conventional digital workflow by incorporating 3D face scans to cone beam computed tomography and intraoral scans. Using this workflow, clinicians can obtain a complete virtual patient for facially generated diagnostic wax up and plan and implement a predictable implant placement and interim prosthesis. This technique provides a full digital workflow for restoratively-driven computer-aided implant planning, guided surgery, and 3D printing of an interim complete-arch fixed implant-supported prosthesis.
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Affiliation(s)
- Sara A Amin
- iTXPros, Tampa, FL.,Faculty of Dentistry, Cairo University, Cairo, Egypt
| | - Sean Hann
- Master's Arch Dental Laboratory, Phoenix, AZ
| | | | | | - Amirali Zandinejad
- Associate Professor, College of Dentistry, Texas A&M University, Dallas, TX, USA.,Prosthodontist at Implant Dentistry Associates of Arlington, Arlington, TX, USA
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11
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Hamilton A, Singh A, Friedland B, Jamjoom FZ, Griseto N, Gallucci GO. The impact of cone beam computer tomography field of view on the precision of digital intra-oral scan registration for static computer-assisted implant surgery: A CBCT analysis. Clin Oral Implants Res 2022; 33:1273-1281. [PMID: 36239539 PMCID: PMC10091816 DOI: 10.1111/clr.14009] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 09/11/2022] [Accepted: 10/08/2022] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Registration of intra-oral surface scans to cone beam computer tomography (CBCT) is critical in the digital workflow for static computer-aided implant surgery (sCAIS). This study aimed to assess the impact of CBCT field of view (FoV) on the precision of digital intra-oral scan registration. MATERIALS AND METHODS Cone beam computer tomography data and intra-oral scans from 20 patients were included. Small FoV CBCT's were created by digitally segmenting a large FoV into three sextants. Virtual implant planning was performed. Digital intra-oral scans were repeatedly registered onto their corresponding large and small FoV CBCT datasets. The distances and angulations between the matching implant positions of each repeated registration were used to determine the precision of the registration process. Wilcoxon Signed Rank Paired Tests were used to compare the differences between large FoV and small FoV. The threshold for statistical significance was set at p = .05. RESULTS Differences in 3D implant position based on the registration precision between small FoV and large FoV present at both the implant entry point (0.37 ± 0.25 mm vs 0.35 ± 0.23 mm, p = .482) and implant tip (0.49 ± 0.34 mm vs 0.37 ± 0.24 mm, p < .001). Differences in overall angular precision were observed between small FOV and large FoV (1.43 ± 1.36° vs 0.51 ± 0.38°, p < .001). CONCLUSION CBCT with a small FoV is accompanied by greater precision errors in intra-oral scan registration. However, when sufficient well-distributed teeth are visible in small FoV CBCT, the precision of digital intra-oral scan registration appears to be within clinically acceptable limits for sCAIS.
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Affiliation(s)
- Adam Hamilton
- Division of Regenerative and Implant Sciences, Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Massachusetts, USA.,Division of Oral Restorative and Rehabilitative Sciences, The University of Western Australia, Perth, Western Australia, Australia
| | - Ashi Singh
- Division of Regenerative and Implant Sciences, Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Massachusetts, USA.,Private Practice, Sydney, New South Wales, Australia
| | - Bernard Friedland
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Faris Z Jamjoom
- Division of Regenerative and Implant Sciences, Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Massachusetts, USA.,Department of Restorative and Prosthetic Dental Sciences, College of Dentistry, King Saud bin Abdulaziz University for Health Sciences, National Guard Health Affairs, Riyadh, Saudi Arabia.,King Abdullah International Medical Research Center, National Guard Health Affairs, Riyadh, Saudi Arabia
| | - Neil Griseto
- Division of Regenerative and Implant Sciences, Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - German O Gallucci
- Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Massachusetts, USA
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12
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Antonacci D, Caponio VCA, Troiano G, Pompeo MG, Gianfreda F, Canullo L. Facial scanning technologies in the era of digital workflow: A systematic review and network meta-analysis. J Prosthodont Res 2022. [PMID: 36058870 DOI: 10.2186/jpr.jpr_d_22_00107] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
PURPOSE The aim of this network meta-analysis is to evaluate the accuracy of various face-scanning technologies in the market, with respect to the different dimensions of space (x, y, and z axes). Furthermore, attention will be paid to the type of technologies currently used and to the best practices for high-quality scan acquisition. MATERIAL AND METHODS The review was conducted following the PRISMA guidelines and its updates. A thorough search was performed using the digital databases MEDLINE, PubMed, EMBASE, and the Cochrane Central Register of Controlled Trials by entering research lines or various combinations of free words. The main keywords used during the search process were "photogrammetry", "laser scanner", "optical scanner", "3D, and "face". RESULTS None of the included technologies significantly deviated from direct anthropometry. The obtained mean differences in the distances between the considered landmarks range from 1.10 to -1.74 mm. CONCLUSION Limiting the movements of the patient and scanner allows for more accurate facial scans with all the technologies involved. Active technologies such as laser scanners (LS), structured light (SL), and infrared structured light (ISL) have accuracy comparable to that of static stereophotogrammetry while being more cost-effective and less time-consuming.
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Affiliation(s)
| | | | - Giuseppe Troiano
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | | | - Francesco Gianfreda
- Department of Industrial Engineering, University of Rome "Tor Vergata", Rome, Italy
| | - Luigi Canullo
- Department of Periodontology, University of Bern, Switzerland
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13
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Full Digital Workflow in the Esthetic Dental Restoration. Case Rep Dent 2022; 2022:8836068. [PMID: 35762014 PMCID: PMC9233610 DOI: 10.1155/2022/8836068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 05/31/2022] [Accepted: 06/04/2022] [Indexed: 12/23/2022] Open
Abstract
This case report presented a fully digital workflow in esthetic dental restoration. A 51-year-old female patient was referred to BDMS Wellness Clinic due to a fracture of the maxillary left central incisor. An immediate dental implant was planned to restore tooth 21 with esthetic crown lengthening of upper front teeth and new zirconia crowns for teeth 11, 12, 13, 21, 22, and 23. Digital impression was made using a digital scanner (PRIMESCAN®, Dentsply Sirona, Bensheim, Germany); surgical guide (Cerec Guide 3, Dentsply Sirona, Bensheim, Germany) was designed by using a designing software (Galileos Software, Dentsply Sirona, Bensheim, Germany) and was milled by using a milling machine (MCXL milling machine, Dentsply Sirona, Bensheim, Germany) to create a precise surgical guide. 3D smile design was done by using the Digital Smile Design (DSD) program, the crown lengthening guide was designed according to DSD designed by using a designing software (Inlab 19 Software, Dentsply Sirona, Bensheim, Germany), and the guide was fabricated by a 3D printer (FormLabs Form 2, Formlab, MA, USA). Provisional crowns (splinted) for teeth 11, 12, 13, 21, 22, and 23 were milled by using polymer (VIPI BLOCK TRILUX®, VIPI Industria, Pirassununga, SP, Brazil) using a milling machine (MCX5, Dentsply Sirona, Bensheim, Germany). The zirconia crowns were designed by using software (Inlab19 Software, Dentsply Sirona, Bensheim, Germany) and milled using the same milling machine. At the implant position, Ti-base is cemented by using an abutment (Multilink Hybrid Abutment, Ivoclar Vivadent, Schaan, Lichtenstein, Germany) with zirconia coping (Cercon base white shade, Dentsply Sirona, Bensheim, Germany) utilized as the abutment. The zirconia crowns (Cercon Xt, Dentsply Sirona, Bensheim, Germany) were sintered and characterized and then cemented. The patient was satisfied with the esthetic outcome of the treatment.
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14
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Bedrossian EA. Complete digital workflow for complete arch implant therapy: Fact or fiction? J Prosthet Dent 2022; 127:821-822. [PMID: 35778293 DOI: 10.1016/j.prosdent.2022.04.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 11/28/2022]
Abstract
This presentation focuses on whether a complete digital workflow, without a definitive cast, from data acquisition to manufacturing of the definitive prostheses for complete-arch implant treatment, is a scientifically and clinically validated workflow. A review of current literature for intraoral scanning and photogrammetry will provide insight into both technologies, reviewing their respective advantages, limitations, and recommendations. Although many publications have described intraoral scanning and photogrammetry for complete-arch digital implant recording, it has been recommended and emphasized that more clinical studies are necessary to validate the complete digital workflow clinically and scientifically for complete-arch implant-supported treatment. This presentation provides a contemporary approach to utilize digital technology for data acquisition, design, and manufacturing for a dual-arch implant therapy.
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Affiliation(s)
- Edmond Armand Bedrossian
- Affiliate Professor, Graduate Prosthodontics, Department of Restorative Dentistry, School of Dentistry, University of Washington, Seattle, Wash.
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15
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Bone Modifications Induced by Rapid Maxillary Expander: A Three-Dimensional Cephalometric Pilot Study Comparing Two Different Cephalometric Software Programs. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12094313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Cone-beam computed tomography (CBCT) allows for more accurate 3D study of the craniofacial region and the development of a very precise treatment plan. The present pilot study aims to evaluate the skeletal outcomes of the rapid maxillary expander (RME) on the sagittal, transverse and vertical planes in growing patients subjected to CBCT at T0 and T1, and to compare the results from two different programs. The effects of the RME are monitored in 11 patients who were subjected to CBCT at T0, before the expansion, and at T1, 6 months after the end of the RME therapy. The results obtained are evaluated using two programs: Simplant and Delta-Dent. All of the analyses were performed by the same operator. Both programs reported statistically significant differences between the pre- and post-expansion values of the parameters on the transverse plane. On the vertical plane, only posterior facial height showed a statistically relevant variation. Both programs underlined a discrepancy between the pre- and post-expansion infraorbital and mental foramina distance values; however, this difference was considered statistically significant by Delta-Dent, and not by Simplant. CBCT is a reliable and effective tool for orthodontic diagnosis and treatment planning. Both of the evaluated programs are efficient in tridimensional cephalometric analysis.
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16
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Sobczak B, Majewski P. An Integrated Fully Digital Prosthetic Workflow for the Immediate Full-Arch Restoration of Edentulous Patients-A Case Report. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19074126. [PMID: 35409808 PMCID: PMC8998896 DOI: 10.3390/ijerph19074126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/23/2022] [Accepted: 03/28/2022] [Indexed: 11/16/2022]
Abstract
Digital prosthetic workflows may significantly increase the efficiency and predictability of the immediate rehabilitation of implant-supported fixed complete dentures. Advanced digital prosthetic workflows require exact and detailed virtual planning models. The direct generation of these models via direct digital impressions remains technique sensitive and demanding. This report illustrates an advanced digital workflow for accurate and efficient immediate full-arch restoration, with an aesthetically and anatomically adapted natural tooth-like prosthesis. The workflow application to fully edentulous arches, and arches with residual failing dentition, is presented. A key characteristic was efficiently integrating and interlinking the prosthetic and surgical workflows via denture replica surgical guides as landmarks for scan registration. This approach allowed for accurate implant placement and efficient and detailed anatomy-based chairside prosthetic planning, and for the manufacturing of the provisional and final restorations under detailed consideration of implant restoration, and the patient's macro-aesthetic and soft tissue anatomy.
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Affiliation(s)
- Barbara Sobczak
- Dr Sobczak Dental Clinic, 04-881 Warsaw, Poland
- Correspondence:
| | - Piotr Majewski
- Implant Dentistry Department, Dental Institute Collegium Medicum, Jagiellonian University, 31-155 Cracow, Poland;
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17
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Papaspyridakos P, Bedrossian A, De Souza A, Bokhary A, Gonzaga L, Chochlidakis K. Digital Workflow in Implant Treatment Planning For Terminal Dentition Patients. J Prosthodont 2022; 31:543-548. [PMID: 35343618 DOI: 10.1111/jopr.13510] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 03/21/2022] [Indexed: 12/01/2022] Open
Abstract
Treatment planning for the transition of patients from terminal dentition to full-arch implant rehabilitation poses challenges. Such challenges pertain to achieving the new orientation of the occlusal and esthetic plane as well as the change of vertical dimension of occlusion (VDO), while the fixed provisionalization using a digital workflow, still tends to be considered complex and hard to perform. This article illustrates step-by-step the utilization of a digital workflow protocol in the treatment planning for rehabilitation of terminal dentition patients, simplifying the smile design and ensuring that fixed provisionalization serves both the functional and esthetic requirements. This protocol includes facially-driven, three-dimensional (3D) digital smile design and chairside mock-up restoration workflows that enable prosthetically-driven assessment prior to implant treatment planning and 3D printing of surgical templates, which can predictably reduce chairside time and adjustments at the surgical and fixed provisionalization appointment. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Panos Papaspyridakos
- Department of Prosthodontics, Tufts University School of Dental Medicine, Boston, MA, USA.,Department of Prosthodontics, University of Rochester Eastman Institute for Oral Health, Rochester, NY, USA
| | - Armand Bedrossian
- Department of Prosthodontics, University of Washington, Seattle, WA, USA
| | - Andre De Souza
- Department of Prosthodontics, Tufts University School of Dental Medicine, Boston, MA, USA
| | - Abdullah Bokhary
- Department of Dental Public Health, King Abdulaziz University Faculty of Dentistry, Jeddah, Saudi Arabia
| | - Luiz Gonzaga
- Center for Implant Dentistry, University of Florida, Gainsville, FL, USA
| | - Konstantinos Chochlidakis
- Department of Prosthodontics, University of Rochester Eastman Institute for Oral Health, Rochester, NY, USA
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18
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Creagh J, Bohner L, Sesma N, Coachman C. Digital approaches to facially guided orthodontic and periodontal rehabilitation in the anterior esthetic zone: A case report. J ESTHET RESTOR DENT 2022; 34:226-234. [PMID: 34989100 DOI: 10.1111/jerd.12860] [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: 09/20/2021] [Revised: 11/01/2021] [Accepted: 11/24/2021] [Indexed: 11/27/2022]
Abstract
OBJECTIVE The present case report describes digital approaches to plan an orthodontic and periodontal rehabilitation at the anterior esthetic zone. CLINICAL CONSIDERATIONS A young patient attended to the dental practice with esthetic concerns. The facially driven digital planning showed the need of an interdisciplinary treatment to improve smile harmony. Orthodontic treatment was conducted with aligners, followed by periodontal and restorative approaches. Tooth alignment was performed with 31 aligners, whereas eight aligners were used for refinement. Harmony between pink and white esthetics was improved with crown lengthening, followed by bleaching. CONCLUSION By using a conservative approach, a successful esthetic result was achieved respecting functional and biological principles. CLINICAL SIGNIFICANCE Digital resources can be used to the interdisciplinary esthetic planning taking into consideration the harmony between smile and face. This approach allows a predictable outcome of the treatment.
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Affiliation(s)
- Jesus Creagh
- Universidad Católica San Antonio (UCAM), Sevilla, Spain
| | - Lauren Bohner
- Department of Oral and Maxillofacial Surgery, Hospital University Münster, Münster, Germany
| | - Newton Sesma
- Department of Prosthodontics, University of São Paulo, São Paulo, Brazil
| | - Christian Coachman
- Department of Restorative Dentistry, University of Pennsylvania, Philadelphia, USA.,Private practice, DSD Founder, São Paulo, Brazil
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19
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Li J, Att W, Chen Z, Lepidi L, Wang HL, Joda T. Prosthetic articulator-based implant rehabilitation virtual patient: A technique bridging implant surgery and reconstructive dentistry. J Prosthet Dent 2021:S0022-3913(21)00514-X. [PMID: 34756772 DOI: 10.1016/j.prosdent.2021.09.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 09/01/2021] [Accepted: 09/02/2021] [Indexed: 11/19/2022]
Abstract
This technique report describes a fully digital workflow to create a prosthetic articulator-based implant rehabilitation (PAIR) virtual patient for complete-arch or complete-mouth implant rehabilitation. This workflow uses a custom gothic arch tracer during the cone beam computed tomography (CBCT) scan and a 3-dimensional virtual facebow when superimposing data. The PAIR virtual patient possesses reliable centric relation and vertical dimension of occlusion and is compatible with virtual articulators. Computer-aided implant planning and a digital prosthetic design can be seamlessly integrated by using this virtual patient.
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Affiliation(s)
- Junying Li
- Clinical Assistant Professor, Department of Biologic and Materials Sciences & Prosthodontics, University of Michigan School of Dentistry, Ann Arbor, Mich
| | - Wael Att
- Professor and Chair, Department of Prosthodontics, Tufts University School of Dental Medicine, Boston, Mass
| | - Zhaozhao Chen
- Graduate student, Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, Mich
| | - Luca Lepidi
- Research Fellow and Clinical Lecturer, Department of Clinical and Experimental Medicine, University of Foggia School of Dentistry, Foggia, Italy
| | - Hom-Lay Wang
- Professor, Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, Mich
| | - Tim Joda
- Professor, Department of Reconstructive Dentistry, University Center for Dental Medicine Basel, University of Basel, Basel, Switzerland.
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20
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Kamali AH, Moradi M, Goodarzian F, Ghasemi P. A discrete event simulation method for performance analysis of an additive manufacturing in the dental clinic. THE INTERNATIONAL JOURNAL, ADVANCED MANUFACTURING TECHNOLOGY 2021; 118:2949-2979. [PMID: 34642530 PMCID: PMC8495446 DOI: 10.1007/s00170-021-08135-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 09/25/2021] [Indexed: 06/13/2023]
Abstract
UNLABELLED Three-dimensional printing (3DP) is an evolutionary solution for making customize items for all sectors, but it has become more prominent in the healthcare sector. In this field, some solutions have to be adapted to patients. This is especially true for dentistry, where all the patients have their own unique mouth and tooth structure. It is now possible to provide an accurate model of the patient's mouth and teeth with solutions that are perfectly compatible with them, leading to the provision of a dental service with a high success rate. Even if there is a problem, it is enough to change the three-dimensional design. Therefore, it is a time-saving method, too. The purpose of this study is to investigate the role of 3DP in dentistry and to identify the processes and procedures resulting from the use of this technology. To do so, with the help of a case study, a 3DP-based dental clinic that provides implant, orthodontics, restoration and dentures services is simulated in Arena software. The current state of the system is assessed by defining appropriate evaluation criteria including net profit, utilization, waiting time, patients makespan and laboratory makespan. The simulation model is then developed with innovations such as adding an inventory control policy, creating rest time for resources and controlling the policy of sending products from laboratory to the clinic. After an extensive sensitivity analysis, improving the performance of the system is on the agenda of this paper by examining various scenarios. Results show that scenarios such as reducing some resources of the system or considering rest time in exchange for increasing the duration of the work shift can have a significant impact on clinic performance. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s00170-021-08135-7.
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Affiliation(s)
- Amir Hossein Kamali
- School of Industrial Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Mohammad Moradi
- School of Industrial Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Fariba Goodarzian
- School of Industrial Engineering, College of Engineering, University of Tehran, Tehran, Iran
- Machine Intelligence Research Labs (MIR Labs), Scientific Network for Innovation and Research Excellence, P.O. Box 2259, 11, 3rd Street NW, WA 98071 Auburn, USA
| | - Peiman Ghasemi
- Department of Industrial Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran
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21
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Rawal S, Balshi T, Jivraj S. Restoration of Zygomatic Implants. Atlas Oral Maxillofac Surg Clin North Am 2021; 29:291-299. [PMID: 34325815 DOI: 10.1016/j.cxom.2021.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Sundeep Rawal
- 2180 North Courtenay Parkway, Merritt Island, FL 32953, USA.
| | - Tom Balshi
- 5544 North Harbor Village Drive, Vero Beach, FL 32967, USA
| | - Saj Jivraj
- 2821 North Ventura Road, Building H, Oxnard, CA 93036, USA
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22
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Sun A, Yang Y, Gao H, Lin WS, Chen L, Tan J. Integrating Facial and Intraoral Scans for Digital Esthetic and Occlusal Design: A Technical Report. J Prosthodont 2021; 30:729-733. [PMID: 34109701 DOI: 10.1111/jopr.13397] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/28/2021] [Indexed: 11/30/2022] Open
Abstract
The provisional prosthesis is a prerequisite for prosthodontic rehabilitation. The purpose of this technique was to register facial and intraoral scans predictably. A 3D virtual patient was created through facial scans, intraoral scans, digital face-bow transfer, and digital cross-articulation technique. This virtual patient allowed predictable positioning of intraoral scans to a virtual articulator by using digital face-bow transfer. The resulting virtual patient facilitated the design of definitive prostheses following a facially generated treatment planning principle. In addition, the virtual articulator was used to improve occlusal design on the definitive prostheses and reduce the need for intraoral adjustment.
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Affiliation(s)
- Ao Sun
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, PR China.,Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, PR China
| | - Yang Yang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, PR China
| | - Hanqi Gao
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, PR China
| | - Wei-Shao Lin
- Department of Prosthodontics, Indiana University School of Dentistry, Indianapolis, IN
| | - Li Chen
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, PR China
| | - Jianguo Tan
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, PR China
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23
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Coachman C, Bohner L, Jreige CS, Sesma N, Calamita M. Interdisciplinary guided dentistry, digital quality control, and the "copy-paste" concepts. J ESTHET RESTOR DENT 2021; 33:982-991. [PMID: 33899323 DOI: 10.1111/jerd.12736] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 03/13/2021] [Accepted: 04/10/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The aim of this report is to present an interdisciplinary approach with novel concepts to virtually plan and achieve esthetics and function. CLINICAL CONSIDERATIONS Despite the advancements in the digital workflow applied to restorative dentistry, the final outcomes are commonly not similar to initial planning. To overcome this major limitation, three concepts are proposed: guided dentistry, digital quality control and "copy-paste" dentistry. Guided dentistry consists of simulations in 3D software and also includes the manufacture of guides/appliances to assist dentists in all clinical steps. Digital quality control involves the use of intraoral scanners and 3D software to compare the real outcomes with the pre-operative simulations after every procedure. "Copy-paste" dentistry is a consequence of the previous two concepts. Using the capacity of the software to overlap files, the original project can be maintained and adapted to achieve results more comparable with the initial design. The proposed method associates facially driven treatment planning and periodontal and restorative procedures to perform the patient's dental rehabilitation. CONCLUSION Through a guided workflow and digital control of clinical steps, the final outcomes obtained were equivalent and closer to the initial design. CLINICAL SIGNIFICANCE In interdisciplinary cases, the treatment plan needs to address individual requirements and to coordinate sequential clinical stages. It is challenging to meet these demands in a conventional process. The proposed concepts engage technological resources to orientate the procedures and to provide assessment in each step. This approach enables the development of a complete and accurate functional-esthetic rehabilitation. Ultimately, the technique presented is reproducible and the results reflect the established plan.
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Affiliation(s)
- Christian Coachman
- Department of Preventive and Restorative Sciences, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,DSD Founder, Madrid, Spain
| | - Lauren Bohner
- Department of Oral and Maxillofacial Surgery, University Hospital Muenster, Muenster, Germany
| | - Camila Sales Jreige
- Department of Prosthodontics, University of São Paulo School of Dentistry, São Paulo, Brazil
| | - Newton Sesma
- Department of Prosthodontics, University of São Paulo School of Dentistry, São Paulo, Brazil
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24
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Revilla-León M, Pérez-Barquero JA, Barmak BA, Agustín-Panadero R, Fernández-Estevan L, Att W. Facial scanning accuracy depending on the alignment algorithm and digitized surface area location: An in vitro study. J Dent 2021; 110:103680. [PMID: 33901605 DOI: 10.1016/j.jdent.2021.103680] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 04/16/2021] [Accepted: 04/19/2021] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVES To measure the accuracy (trueness and precision) of a facial scanner depending on the alignment method and the digitized surface area location. METHODS Fourteen markers were adhered on a head mannequin and digitized using an industrial scanner (GOM Atos Q 3D 12 M; Carl Zeiss Industrielle Messtechnik GmbH). A control mesh was acquired. Subsequently, the mannequin was digitized using a facial scanner (Arc4; Bellus3D) (n = 30). The control mesh was delineated into 10 areas. Based on the alignment procedures, two groups were created: reference best fit (RBF group) and landmark-based best fit (LA group). The root mean square was used to calculate the discrepancy between the control mesh and each facial scan. A 2-way ANOVA and Tukey pairwise comparison tests were used to compare trueness and precision between the 2 groups across 10 areas (α = .05). RESULTS Both alignment algorithms (P = .007) and digitized area (P < .001) were significant predictors of trueness with a significant interaction between the two predictors (F (9, 580) =25.13, P < .001). Tukey pairwise comparison showed that there was a significant difference between mean trueness values of RBF (mean=0.53 mm) and LA (mean=0.55 mm) groups. Moreover, a significant difference was detected among the trueness values across surface areas. The A9-area (left tragus area) had the highest and A5-area (right cheek area) had the lowest mean trueness. Both alignment algorithm (P < .001) and digitized surface area (P < .001) were significant predictors of precision with a significant interaction between the two predictors (F (9, 580) =14.34, P < .001). Tukey pairwise comparison showed that there was a significant difference between mean precision values of RBF (mean=0.38 mm) and LA (mean=0.35 mm) groups. Moreover, a significant difference was detected among the precision values across surface areas. Comparing the surface areas, A9-area had the highest and A10-area (forehead area) had the lowest mean precision. CONCLUSIONS Alignment procedures influenced on the scanning trueness and precision mean values, but the facial scanner accuracy values obtained were within the clinically acceptable accuracy threshold of less or equal than 2 mm. Furthermore, the scanning accuracy (for both trueness and precision) depended on the location of the scanned surface area, being more accurate on the middle of the face than on the sides of the face.
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Affiliation(s)
- Marta Revilla-León
- Comprehensive Dentistry Department, College of Dentistry, Texas A&M University, Dallas, TX, United States; Affiliate Faculty Graduate Prosthodontics, Restorative Dentistry Department, School of Dentistry, University of Washington, Seattle, WA, United States; Researcher at Revilla Research Center, Madrid, Spain.
| | | | - Basir A Barmak
- Clinical Research and Biostatistics, Eastman Institute of Oral Health, University of Rochester Medical Center, Rochester, NY, United States
| | - Rubén Agustín-Panadero
- Department of Dental Medicine, Faculty of Medicine and Dentistry, University of Valencia, Valencia, Spain
| | - Lucía Fernández-Estevan
- Department of Dental Medicine, Faculty of Medicine and Dentistry, University of Valencia, Valencia, Spain
| | - Wael Att
- Department of Prosthodontics, Tuff University School of Dental Medicine, Boston, MA, United States
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25
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Accuracy of a patient 3-dimensional virtual representation obtained from the superimposition of facial and intraoral scans guided by extraoral and intraoral scan body systems. J Prosthet Dent 2021; 128:984-993. [PMID: 33838919 DOI: 10.1016/j.prosdent.2021.02.023] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 02/17/2021] [Accepted: 02/17/2021] [Indexed: 11/22/2022]
Abstract
STATEMENT OF PROBLEM A patient 3-dimensional virtual representation aims to facilitate the integration of facial references into treatment planning or prosthesis design procedures, but the accuracy of the virtual patient representation remains unclear. PURPOSE The purpose of the present observational clinical study was to determine and compare the accuracy (trueness and precision) of a virtual patient obtained from the superimposition procedures of facial and intraoral digital scans guided by 2 scan body systems. MATERIAL AND METHODS Ten participants were recruited. An intraoral digital scan was completed (TRIOS 4). Four fiduciary markers were placed in the glabella (Gb), left (IOL) and right infraorbital canal (IOR), and tip of the nose (TN). Two digitizing procedures were completed: cone beam computed tomography (CBCT) (i-CAT FLX V-Series) and facial scans (Face Camera Pro Bellus) with 2 different scan body systems: AFT (ScanBodyFace) and Sat 3D (Sat 3D). For the AFT system, a reference facial scan was obtained, followed by a facial scan with the participant in the same position as when capturing the CBCT scan. For the Sat 3D system, a reference facial scan was recorded, followed by a facial scan with the patient in the same position as when capturing the CBCT scan. The patient 3-dimensional representation for each scan body system was obtained by using a computer program (Matera 2.4). A total of 14 interlandmark distances were measured in the CBCT scan and both 3-dimensional patient representations. The discrepancies between the CBCT scan (considered the standard) and each 3-dimensional representation of each patient were used to analyze the data. The Kolmogorov-Smirnov test revealed that trueness and precision values were not normally distributed (P<.05). A log10 transformation was performed with 1-way repeated-measures MANOVA (α=.05). RESULTS The accuracy of the virtual 3-dimensional patient representations obtained by using AFT and Sat 3D systems showed a trueness ranging from 0.50 to 1.64 mm and a precision ranging from 0.04 to 0.14 mm. The Wilks lambda detected an overall significant difference in the accuracy values between the AFT and Sat 3D systems (F=3628.041, df=14, P<.001). A significant difference was found in 12 of the 14 interlandmark measurements (P<.05). The AFT system presented significantly higher discrepancy values in Gb-IOL, TN-IOR, IOL-IOR, and TN-6 (P<.05) than in the Sat 3D system. The Sat 3D system had a significantly higher discrepancy in Gb-TN, TN-IOL, IOL-3, IOL-6, TN-8, TN-9, TN-11, IOR-11, and IOR-14 (P<.05) than in the AFT system. The Wilcoxon signed-rank test did not detect any significant difference in the precision values between the AFT and Sat 3D systems (Z=-0.838, P=.402). CONCLUSIONS The accuracy of the patient 3-dimensional virtual representations obtained using AFT and Sat 3D systems showed trueness values ranging from 0.50 to 1.64 mm and precision values ranging from 0.04 to 0.14 mm. The AFT system obtained higher trueness than the Sat 3D system, but both systems showed similar precision values.
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Cattoni F, Chirico L, Merlone A, Manacorda M, Vinci R, Gherlone EF. Digital Smile Designed Computer-Aided Surgery versus Traditional Workflow in "All on Four" Rehabilitations: A Randomized Clinical Trial with 4-Years Follow-Up. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18073449. [PMID: 33810379 PMCID: PMC8037328 DOI: 10.3390/ijerph18073449] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/22/2021] [Accepted: 03/23/2021] [Indexed: 12/12/2022]
Abstract
The aim of the present study was to evaluate and compare the traditional “All on Four” technique with digital smile designed computer-aided “All on Four” rehabilitation; with a 4-years follow-up. The protocol was applied to a total of 50 patients randomly recruited and divided in two groups. Digital protocol allows for a completely virtual planning of the exact position of the fixtures, which allows one to perform a flapless surgery procedure with great accuracy (mini-invasive surgery) and also it is possible to use virtually planned prostheses realized with Computer-Aided Design/Computer-Aided Manufacturing (CAD/CAM) (methods for an immediate loading of the implants. After 4 years from the treatments 98% of success were obtained for the group of patients treated with the traditional protocol and 100% for the digital protocol. At each time interval a significant difference in peri-implant crestal bone loss between the two groups was detected; with an average Marginal Bone Loss (MBL) at 4 years of 1.12 ± 0.26 mm in the traditional group and 0.83 ± 0.11 mm in the digital group. Patients belonging to the digital group have judged the immediate loading (92%), digital smile preview (93%), the mock-up test (98%) and guided surgery (94%) as very effective. All patients treated with a digital method reported lower values of during-surgery and post-surgery pain compared to patients rehabilitated using traditional treatment. In conclusion, the totally digital protocol described in the present study represents a valid therapeutic alternative to the traditional “All on Four” protocol for implant-supported rehabilitations of edentulous dental arches.
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Affiliation(s)
- Francesca Cattoni
- Department of Dentistry, IRCCS San Raffaele Hospital, 20132 Milan, Italy
| | - Luca Chirico
- Department of Dentistry, IRCCS San Raffaele Hospital, 20132 Milan, Italy
| | - Alberto Merlone
- Department of Dentistry, IRCCS San Raffaele Hospital, 20132 Milan, Italy
| | - Michele Manacorda
- Department of Dentistry, IRCCS San Raffaele Hospital, 20132 Milan, Italy
| | - Raffaele Vinci
- Department of Dentistry, IRCCS San Raffaele Hospital, 20132 Milan, Italy
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Coachman C, Blatz MB, Bohner L, Sesma N. Dental software classification and dento-facial interdisciplinary planning platform. J ESTHET RESTOR DENT 2021; 33:99-106. [PMID: 33470496 DOI: 10.1111/jerd.12713] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/24/2020] [Accepted: 01/06/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Despite all advantages provided by the digital workflow, its application in clinical practice is still more focused on device manufacturing and clinical execution than on treatment planning and communication. The most challenging phases of treatment, comprehensive planning, diagnosis, risk assessment, and decision-making, are still performed without significant assistance from digital technologies. This article proposes a new dental software classification based on the digital workflow timeline, considering the moment of patient's case acceptance as key in this classification, and presents the ideal software tools for each phase. CLINICAL CONSIDERATIONS The proposed classification will help clinicians and dental laboratories to choose the most appropriate software during the treatment planning phase and integrate virtual plans with other software platforms for digitally guided execution. A dento-facial interdisciplinary planning platform virtually simulates interdisciplinary clinical procedures and assists in the decision-making process. CONCLUSIONS The suggested classification assists professionals in different phases of the digital workflow and provides guidelines for improvement and development of digital technologies before treatment plan acceptance by the patient. CLINICAL SIGNIFICANCE Three-dimensional interdisciplinary simulations allow clinicians to visualize how each dental procedure influences further treatments. With this treatment planning approach, predictability of different procedures in restorative dentistry, orthodontics, implant dentistry, periodontal, and oral maxillofacial surgery is improved.
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Affiliation(s)
- Christian Coachman
- Department of Preventive and Restorative Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Markus Bernhard Blatz
- Department of Preventive and Restorative Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Lauren Bohner
- Department of Oral and Maxillofacial Surgery, Hospital University Münster, Münster, Germany
| | - Newton Sesma
- Department of Prosthodontics, University of São Paulo School of Dentistry, São Paulo, Brazil
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Pozzi A, Hansson L, Carosi P, Arcuri L. Dynamic navigation guided surgery and prosthetics for immediate loading of complete-arch restoration. J ESTHET RESTOR DENT 2021; 33:224-236. [PMID: 33470044 DOI: 10.1111/jerd.12710] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/23/2020] [Accepted: 01/04/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To assess clinical and radiological performance of novel digital workflow integrating dynamic guided surgery, to streamline execution of implant placement, soft and bone tissue sculpturing, and immediate delivery of navigation guided complete-arch prosthesis. MATERIALS AND METHODS This proof of concept prospective single cohort study investigated 10 consecutive patients (three males, seven females; mean age 62.5 ± 8.9 years; range, 48-75) requiring at least one complete-arch fixed dental prostheses (FDP) in both jaws, treated between January and August 2019. Primary outcomes were implant and prosthetic success rates, surgical and prosthetic complications. Secondary outcomes were marginal bone loss (MBL), implant stability quotient (ISQ), periodontal parameters (plaque and bleeding indexes). RESULTS Sixty implants (32 NobelParallel TiUltra and 28 NobelActive TiUltra, Nobel Biocare) were placed and 14 complete-arch FDPs immediately loaded (mean follow-up 16.2 ± 1.7 months, 14-18). One implant failed and was immediately replaced. No other surgical or biological complications occurred, accounting for a cumulative success rate of 98.3%. No prosthetic complication occurred, leading to 100% prosthetic success rate. Mean ISQ at implant placement was 71 ± 2.8 (65-78). The mean MBL was -0.53 ± 0.28 mm (-0.22 to -1.12 mm). Plaque and bleeding scores were 14.4 ± 8.18 and 7.15 ± 4.4, respectively. CONCLUSION Within the limitations of this proof-of-concept dynamic navigation was effective to deliver in the planned coordinates both implants and prosthesis and guide bone and soft tissue sculpturing. Immediate loading of digitally prefabricated esthetically driven complete-arch FDP was facilitated, resulting in high implant and prosthetic success rates. CLINICAL SIGNIFICANCE The investigated digital workflow integrating dynamic navigation may overcome the difficulties related to immediate positioning and loading of digitally prefabricated complete-arch FDP. The navigation guided soft and bone tissues sculpturing, associated to xenogeneic collagen matrix grafting, represented a predictable technique to achieve the digitally planned interface, reestablishing the mucosal dimension required for the protection of underlying bone while maintaining tissue health.
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Affiliation(s)
- Alessandro Pozzi
- Goldstein Center for Esthetic and Implant Dentistry, Department of Restorative Sciences, Augusta University, Augusta, Georgia, USA.,International Center Oral rehabilitation, Rome, Italy
| | - Lars Hansson
- LH Dental Design Solutions, Virginia Beach, Virginia, USA
| | - Paolo Carosi
- Department of Chemical Science and Technologies, Materials for Health, Environment and Energy - Dentistry, University of Rome Tor Vergata, Rome, Italy
| | - Lorenzo Arcuri
- Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, Rome, Italy
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Piedra-Cascón W, Fountain J, Att W, Revilla-León M. 2D and 3D patient's representation of simulated restorative esthetic outcomes using different computer-aided design software programs. J ESTHET RESTOR DENT 2021; 33:143-151. [PMID: 33399263 DOI: 10.1111/jerd.12703] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/16/2020] [Accepted: 12/21/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To review the techniques and available 2D and 3D computer-aided design (CAD) software programs to perform a diagnostic waxing for restorative procedures when cone beam computed tomography is not indicated. OVERVIEW An electronic review was performed in Medline, Embase, and Scopus search engines. A manual search was also conducted. The articles evaluating methods to obtain a 2D or 3D patient's representation for restorative dental procedures were included. A total of 33 articles were included for full text review. CAD programs provide the capability to integrate facial features from 2D photographs or 3D facial scans and facilitate facially driven digital diagnostic waxing procedures. Diagnostic and design tools varied among the programs, and multiple technique descriptions were found. However, the literature evaluating the accuracy of virtual patients and the perception variations between the 2D and 3D dimensional representations is limited. CONCLUSIONS The integration of digital technologies into treatment planning procedures introduce variation into the conventional interfaces; however, the concepts remain the same. Further studies are needed to evaluate the accuracy of the virtual representations and the influence of the type of dimensional representation on the esthetic perceptions among dental professionals. CLINICAL SIGNIFICANCE The 2D and 3D CAD software programs facilitate the integration of facial features into digital diagnostic waxing procedures; however, the esthetic perception of the patient's virtual representation might vary among the different systems.
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Affiliation(s)
- Wenceslao Piedra-Cascón
- Affiliate Faculty Graduate in Esthetic Dentistry Program, Complutense University of Madrid, Spain and Researcher at Revilla Research Center, Madrid, Spain
| | | | - Wael Att
- Professor and Chair Department of Prosthodontics, Tufts University School of Dental Medicine, Boston, Massachusetts, USA
| | - Marta Revilla-León
- Assistant Professor and Assistant Program Director AEGD Residency, Comprehensive Dentistry Department, College of Dentistry, Texas A&M University, Dallas, Texas, USA.,Affiliate Faculty Graduate Prosthodontics, Restorative Dentistry Department, School of Dentistry, University of Washington, Seattle, Washington, USA.,Researcher at Revilla Research Center, Madrid, Spain
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Pérez-Giugovaz MG, Mosier M, Revilla-León M. An additively manufactured intraoral scan body for aiding complete-arch intraoral implant digital scans with guided integration of 3D virtual representation. J Prosthet Dent 2021; 127:38-43. [PMID: 33413985 DOI: 10.1016/j.prosdent.2020.11.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 11/18/2020] [Accepted: 11/18/2020] [Indexed: 11/15/2022]
Abstract
This article describes a polymeric additively manufactured intraoral scan body that facilitates a complete-arch intraoral implant digital scan and guides the superimposition procedures between the facial and digital scans comprising the patient's 3D virtual representation. Furthermore, this novel intraoral scan body can be modified for the patient's specific arch dimensions, enhancing patient comfort and facilitating digitizing.
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Affiliation(s)
- Marcelo Gabriel Pérez-Giugovaz
- Director, Graduate in Digital Dentistry, Catholic University of Córdoba, Córdoba, Argentina; Director, Centro de Capacitación CAD3D, City Bell-La Plata, Buenos Aires, Argentina; Private practice, City Bell-La Plata, Buenos Aires, Argentina
| | | | - Marta Revilla-León
- Assistant Professor and Assistant Program Director AEGD Residency, Comprehensive Dentistry Department, College of Dentistry, Texas A&M University, Dallas, Texas; Affiliate Faculty, Graduate Prosthodontics, Department of Restorative Dentistry, School of Dentistry, University of Washington, Seattle, Wash; Researcher at Revilla Research Center, Madrid, Spain.
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Minimally invasive prosthodontic correction of pseudo class III malocclusion by implementing a systematic digital workflow: A clinical report. J Prosthet Dent 2021; 125:8-14. [DOI: 10.1016/j.prosdent.2019.11.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 11/13/2019] [Accepted: 11/14/2019] [Indexed: 11/21/2022]
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国 丹, 潘 韶, 衡 墨, 屈 健, 魏 秀, 周 永. [Comparison of the registration methods for the three-dimensional facial scans applied to the design of full-arch implant supported restoration]. BEIJING DA XUE XUE BAO. YI XUE BAN = JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2020; 53:83-87. [PMID: 33550340 PMCID: PMC7867969 DOI: 10.19723/j.issn.1671-167x.2021.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To compare the registration accuracy of three-dimensional (3D) facial scans for the design of full-arch implant supported restoration by five methods and to explore the suitable registration method. METHODS According to the criteria, ten patients with maxillary edentulous jaw or end-stage dentition requiring implant supported restorations were enrolled in this study. A special rim with individual feature marks reflected appropriate occlusal relationship and esthetic characteristics was made for each patient. Both 3D facial scan data of natural laughter and with opener traction to expose the teeth or occlusal rim of each patient were acquired by facial scan and input to the digital analysis software Geomagic Qualify 2012. The dataset was superimposed by five different methods: seven facial anatomical landmark points alignment, facial immobile area alignment (forehead and nasal area), facial anatomical landmark points and immobile area combining alignment, facial feature points alignment, facial and intraoral feature points alignment with the same local coordinate system. The three-dimensional deviation of the same selected area was calculated, the smaller the deviation, the higher the registration accuracy. The 3D deviation was compared among the three registration methods of facial anatomical landmark points, facial immobile area alignment and the combination of the above two methods. Friedman test was performed to analyze the difference among the three methods (α=0.05). The effect of the aid of the facial and intraoral feature points were evaluated. Paired t test were performed to analyze the difference (P<0.05). RESULTS The average three-dimensional deviation of the selected area after alignment with the facial anatomical landmarks was (1.501 2±0.406 1) mm, significantly larger than that of the facial immobile area best-fit alignment [(0.629 1±0.150 6) mm] and the combination of the two methods[(0.629 1±0.150 6) mm] (P < 0.001). The aid of the facial feature points could significantly reduce the deviation (t=1.001 3, P < 0.001). There was no significant statistical difference in the remaining groups. CONCLUSION The forehead area of the 3D facial scan can be exposed as much as possible. The establishment of facial characteristic landmark points and the use of the invariant area alignment can improve the accuracy of registration. It should be clinically feasible to apply three-dimensional facial scan to the design of full-arch implant supported restoration with the registration of the immobile area on the face especially the forehead area.
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Affiliation(s)
- 丹妮 国
- 北京大学口腔医学院·口腔医院,修复科 国家口腔疾病临床医学研究中心 口腔数字化医疗技术和材料国家工程实验室 口腔数字医学北京市重点实验室,北京 100081Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - 韶霞 潘
- 北京大学口腔医学院·口腔医院,修复科 国家口腔疾病临床医学研究中心 口腔数字化医疗技术和材料国家工程实验室 口腔数字医学北京市重点实验室,北京 100081Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - 墨笛 衡
- 北京大学口腔医学院·口腔医院,义齿加工中心 国家口腔疾病临床医学研究中心 口腔数字化医疗技术和材料国家工程实验室 口腔数字医学北京市重点实验室,北京 100081Dental Laboratory, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - 健 屈
- 北京大学口腔医学院·口腔医院,义齿加工中心 国家口腔疾病临床医学研究中心 口腔数字化医疗技术和材料国家工程实验室 口腔数字医学北京市重点实验室,北京 100081Dental Laboratory, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - 秀霞 魏
- 北京大学口腔医学院·口腔医院,义齿加工中心 国家口腔疾病临床医学研究中心 口腔数字化医疗技术和材料国家工程实验室 口腔数字医学北京市重点实验室,北京 100081Dental Laboratory, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - 永胜 周
- 北京大学口腔医学院·口腔医院,修复科 国家口腔疾病临床医学研究中心 口腔数字化医疗技术和材料国家工程实验室 口腔数字医学北京市重点实验室,北京 100081Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Piedra-Cascón W, Meyer MJ, Methani MM, Revilla-León M. Accuracy (trueness and precision) of a dual-structured light facial scanner and interexaminer reliability. J Prosthet Dent 2020; 124:567-574. [DOI: 10.1016/j.prosdent.2019.10.010] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 10/08/2019] [Accepted: 10/08/2019] [Indexed: 11/25/2022]
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Chairside 3D digital design and trial restoration workflow. J Prosthet Dent 2020; 124:514-520. [DOI: 10.1016/j.prosdent.2019.10.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 10/10/2019] [Accepted: 10/10/2019] [Indexed: 11/23/2022]
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Negreiros WM, Jamjoom FZ, Gallucci G, Hamilton A. Designing a complete-arch digital trial tooth arrangement for completely edentulous patients by using an open-source CAD software program: A dental technique. J Prosthet Dent 2020; 125:387-391. [PMID: 32265122 DOI: 10.1016/j.prosdent.2020.01.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 01/23/2020] [Accepted: 01/23/2020] [Indexed: 12/14/2022]
Abstract
A method for creating a complete-arch digital trial tooth arrangement for completely edentulous patients is described. The technique demonstrates an effective way to reproduce the dental and gingival anatomies by using a free 3D modeling software program. This cost-effective, time-saving, and versatile method allows dental professionals to digitally plan challenging treatments for completely edentulous patients. The technique can also be used to fabricate diagnostic prostheses and implant-supported interim prostheses.
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Affiliation(s)
- William Matthew Negreiros
- Research Associate of the Division of Regenerative and Implant Sciences, Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Mass.
| | - Faris Z Jamjoom
- Advanced Graduate Implantology Resident, Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Mass
| | - German Gallucci
- Associate Professor and Chairman, Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Mass
| | - Adam Hamilton
- Director of the Division of Regenerative and Implant Sciences, Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Mass
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Facially Driven Digital Diagnostic Waxing: New Software Features to Simulate and Define Restorative Outcomes. ACTA ACUST UNITED AC 2019. [DOI: 10.1007/s40496-019-00233-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Lee JH, Kim SH, Han JS, Yeo ISL, Yoon HI. Contemporary full-mouth rehabilitation using a digital smile design in combination with conventional and computer-aided design/manufacturing restorative materials in a patient with bruxism: A case report. Medicine (Baltimore) 2019; 98:e18164. [PMID: 31770262 PMCID: PMC6890298 DOI: 10.1097/md.0000000000018164] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
RATIONALE Full-mouth rehabilitation of patients with bruxism and severely worn dentition poses a great challenge to clinicians. Several treatment planning methods and restorative materials are used to treat tooth wear in modern dentistry. Clinicians should be able to select the most suitable treatment planning methods and materials for individual patients depending on their specific situation. PATIENT CONCERNS A 47-year-old male was referred for evaluation of a severely worn dentition. DIAGNOSES Clinical and radiographic evaluation revealed tooth wear in the entire dentition. The interocclusal distance at rest was 4 mm, and the patient had a parafunctional habit of bruxism. INTERVENTIONS A digital smile design was used to formulate a treatment plan. Full-mouth rehabilitation was performed using a combination of conventional and digital materials and methods. OUTCOMES The full-mouth restoration showed satisfactory functions and esthetics. No complications were observed in the restorations, supporting tissues, and temporomandibular joints during 2-year follow-up. LESSONS In clinical practice, it is important to determine the optimal combination of the available methods for treatment planning. This case report details the formulation of a unique treatment plan for the dental rehabilitation of a severely worn out dentition, which is considered challenging due to the limitations imposed by biological tissues and restorative materials. The use of conventional and digital tools for treatment planning, patient education, and treatment execution was demonstrated.
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Affiliation(s)
- Jae-Hyun Lee
- Department of Prosthodontics, One-Stop Specialty Center, Seoul National University Dental Hospital
| | - Sung-Hun Kim
- Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, South Korea
| | - Jung-Suk Han
- Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, South Korea
| | - In-Sung Luke Yeo
- Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, South Korea
| | - Hyung-In Yoon
- Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, South Korea
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Kale E, Cilli M, Özçelik TB, Yilmaz B. Marginal fit of CAD-CAM monolithic zirconia crowns fabricated by using cone beam computed tomography scans. J Prosthet Dent 2019; 123:731-737. [PMID: 31653403 DOI: 10.1016/j.prosdent.2019.05.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 05/30/2019] [Accepted: 05/31/2019] [Indexed: 11/29/2022]
Abstract
STATEMENT OF PROBLEM Information regarding the precision of monolithic zirconia crowns fabricated by using a standard computer-aided design and computer-aided manufacturing (CAD-CAM) workflow is available. However, information on the effect of a modified workflow using 3D laboratory scanning and/or cone beam computed tomography (CBCT) for monolithic zirconia crown fabrication is lacking. PURPOSE The purpose of this in vitro study was to evaluate the effect of different scans on the marginal fit of CAD-CAM monolithic zirconia crowns fabricated by 3D laboratory scanning and CBCT. MATERIAL AND METHODS An extracted maxillary left first molar was prepared and digitized by using a 3D laboratory scanner (D900; 3Shape A/S) (control group). The tooth was also scanned by CBCT (i-CAT; Imaging Sciences) to generate a second virtual 3D model (CBCTscan group). A tooth cast out of polyurethane (PU) (Zenotec Model; Wieland) was reproduced from the CBCT data by using a CAD software program (Dental System 2.6; 3Shape A/S) and milling machine (CORiTEC 550i; imes-icore) and further scanned by using the 3D laboratory scanner to generate a third virtual 3D model to represent a clinical scenario where a patient's cast is needed (PU3DLab group). A monolithic zirconia crown design (cement space: margin 40 μm, 1 mm above 70 μm) was used on the virtual models, and crowns were fabricated out of presintered zirconia blocks (ZenostarT4; Wieland) by using a 5-axis milling machine (CORiTEC 550i; imes-icore). The crowns were sintered (Sinterofen HT-S Speed; Mihm-Vogt), and the vertical marginal discrepancy (VMD) was measured by ×100-magnification microscopy. Measurements were made at 384 points in 3 groups of 16 specimens. The measurements for each specimen were averaged, and VMD mean values were calculated. The Kruskal-Wallis test was used for the statistical analysis (α=.05). The Mann-Whitney U test and Bonferroni adjustment were further used to compare the pairs (α=.017). RESULTS The mean VMD value was 41 μm (median: 38 μm) for the control group, 44 μm (median: 42 μm) for the CBCTscan, and 60 μm (median: 58 μm) for the PU3DLab. No significant difference was found between control and CBCTscan groups (P=.274). However, there was a significant difference between control and PU3DLab and CBCTscan and PU3DLab groups (P<.001). CONCLUSIONS Marginal fit of the crowns fabricated by using the 3D laboratory scanner and through the direct use of CBCT was better than that of the crowns fabricated by using the workflow that combined the use of CBCT, PU cast, and 3D laboratory scanner. All tested protocols enabled the fabrication of monolithic zirconia crowns with a marginal discrepancy smaller than 120 μm.
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Affiliation(s)
- Ediz Kale
- Assistant Professor, Department of Prosthodontics, Mustafa Kemal University Faculty of Dentistry, Hatay, Turkey.
| | - Mesutcan Cilli
- Research Assistant, Department of Prosthodontics, Mustafa Kemal University Faculty of Dentistry, Hatay, Turkey
| | - Tuncer Burak Özçelik
- Associate Professor, Department of Prosthodontics, Başkent University Faculty of Dentistry, Ankara, Turkey
| | - Burak Yilmaz
- Professor, Division of Restorative and Prosthetic Dentistry, The Ohio State University College of Dentistry, Columbus, Ohio
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Ye H, Wang KP, Liu Y, Liu Y, Zhou Y. Four-dimensional digital prediction of the esthetic outcome and digital implementation for rehabilitation in the esthetic zone. J Prosthet Dent 2019; 123:557-563. [PMID: 31383524 DOI: 10.1016/j.prosdent.2019.04.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 04/05/2019] [Accepted: 04/06/2019] [Indexed: 11/24/2022]
Abstract
A technique for 4-dimensional (4D) digital prediction of the outcome of esthetic dentistry for a virtual patient is presented. Static 3D images (which incorporate predicted precise dentition and facial soft tissue in different smiling positions) can be converted into dynamic 3D images by using 3D intraoral imaging, 3D face imaging, and various computer software programs. This strategy can improve the visual perception and quality of esthetic prediction. In addition, the predicted esthetic outcome can be implemented by replicating the contour and shape of digital wax patterns in the definitive ceramic restorations.
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Affiliation(s)
- Hongqiang Ye
- Associate Clinical Professor, Department of Prosthodontics, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, PR China
| | - Kuan-Paul Wang
- Graduate student, Department of Prosthodontics, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, PR China
| | - Yushu Liu
- Resident, The Second Dental Center, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, PR China
| | - Yunsong Liu
- Associate Professor, Department of Prosthodontics, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, PR China
| | - Yongsheng Zhou
- Professor, Department of Prosthodontics, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, PR China.
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Charavet C, Bernard JC, Gaillard C, Le Gall M. Benefits of Digital Smile Design (DSD) in the conception of a complex orthodontic treatment plan: A case report-proof of concept. Int Orthod 2019; 17:573-579. [PMID: 31272840 DOI: 10.1016/j.ortho.2019.06.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Digital Smile Design (DSD) is a systematic protocol based on specific photographs and software analysis that is used worldwide. DSD aims to assist the practitioner in creating and planning a course of treatment, especially in a multidisciplinary approach, and provides a virtual simulation of the final result. Additionally, it is a tool that enables communication and discussion between all the dental team, including the dental laboratory, and also with the patient. Although widely described and used in prosthetic rehabilitation, this tool remains only anecdotally used in the world of orthodontics. The objective of this proof of concept was to describe the application of the Digital Smile Design protocol in the diagnosis of orthodontic treatment. MATERIALS AND METHODS A teenage patient was referred to our university clinic by a private orthodontic practitioner for a second opinion on the treatment at that time. The patient had a self-ligating orthodontic appliance. According to the history of the case and the oral situation at that moment, the patient required an accurately calculated plan for orthodontic tooth movement that would permit the achievement of future rehabilitation. Therefore, the decision was taken to use a DSD protocol to potentially complete the classic orthodontic examination. RESULTS From the classic orthodontic examination, the patient presented a molar class I, midline deviations, the #21 and #23 were missing, #12 was conoid (microdontic) and, finally, #22 was in the position of #21. From the DSD results, three different views simulated the final results and therefore provided additional and relevant information, such as the correct position of the upper midline and the correct position of #12, #13, #22 and #23. CONCLUSION This proof of concept showed the clinical relevance of the Digital Smile Design protocol as a new tool for complex orthodontic treatment planning, especially in a multidisciplinary approach. Further publications will be necessary in order to define a specific DSD protocol for orthodontic treatment.
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Affiliation(s)
- Carole Charavet
- University hospital of Liège, department of orthodontics and dentofacial orthopaedics, Liège, Belgium.
| | - Jean-Claude Bernard
- University hospital of Liège, department of orthodontics and dentofacial orthopaedics, Liège, Belgium
| | | | - Michel Le Gall
- University hospital of Marseille, department of orthodontics and dentofacial orthopaedics, Marseille, France
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Facially generated and additively manufactured baseplate and occlusion rim for treatment planning a complete-arch rehabilitation: A dental technique. J Prosthet Dent 2019; 121:741-745. [DOI: 10.1016/j.prosdent.2018.07.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 07/17/2018] [Accepted: 07/18/2018] [Indexed: 11/22/2022]
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Galibourg A, Brenes C. Virtual smile design tip: From 2D to 3D design with free software. J Prosthet Dent 2019; 121:863-864. [PMID: 30948297 DOI: 10.1016/j.prosdent.2018.10.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 10/07/2018] [Accepted: 10/08/2018] [Indexed: 11/18/2022]
Affiliation(s)
- Antoine Galibourg
- Instructor, Department of Prosthetics Dentistry, Faculté de Chirurgie Dentaire, Université Paul Sabatier, Centre Hospitalier Universitaire, Toulouse, France.
| | - Christian Brenes
- Assistant Professor, Department of General Dentistry, Dental College of Georgia, Augusta University, Augusta, Ga
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Javaid M, Haleem A. Current status and applications of additive manufacturing in dentistry: A literature-based review. J Oral Biol Craniofac Res 2019; 9:179-185. [PMID: 31049281 DOI: 10.1016/j.jobcr.2019.04.004] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 10/13/2018] [Accepted: 04/15/2019] [Indexed: 01/17/2023] Open
Abstract
Objective To study the current status and applications of additive manufacturing (AM) in dentistry along with various technologies, benefits and future scope. Methods A significant number of relevant research papers on the additive manufacturing application in dentistry are identified through Scopus and studied using bibliometric analysis that shows an increasing trend of research in this field. This paper briefly describes various types of AM technologies with their accuracy, pros and cons along with different dental materials. Paper also discusses various benefits of AM in dentistry and steps used to create 3D printed dental model using this technology. Further, ten major AM applications in dentistry are identified along with primary references and objectives. Results Additive manufacturing is an innovative technique moving towards the customised production of dental implants and other dental tools using computer-aided design (CAD) data. This technology is used to manufacture elaborate dental crowns, bridges, orthodontic braces and can also various other models, devices and instruments with lesser time and cost. With the help of this disruptive innovation, dental implants are fabricated accurately as per patient data captured by the dental 3D scanner. The application of this technology is also being explored for the precise manufacturing of removal prosthetics, aligners, surgical templates for implants and produce models that for the planning of treatment and preoperative positioning of the jaws.
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Affiliation(s)
- Mohd Javaid
- Department of Mechanical Engineering, Jamia Millia Islamia, New Delhi, India
| | - Abid Haleem
- Department of Mechanical Engineering, Jamia Millia Islamia, New Delhi, India
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Cervino G, Fiorillo L, Arzukanyan AV, Spagnuolo G, Cicciù M. Dental Restorative Digital Workflow: Digital Smile Design from Aesthetic to Function. Dent J (Basel) 2019; 7:dj7020030. [PMID: 30925698 PMCID: PMC6632039 DOI: 10.3390/dj7020030] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 03/11/2019] [Accepted: 03/14/2019] [Indexed: 12/11/2022] Open
Abstract
Breakthroughs in technology have not been possible without influencing the medical sciences. Dentistry and dental materials have been fully involved in the technological and information technology evolution, so much so that they have revolutionized dental techniques. In this study, we want to create the first collection of articles on the use of digital techniques and software, such as Digital Smile Design. The aim is to collect all of the results regarding the use of this software, and to highlight the fields of use. Twenty-four articles have been included in the review, and the latter describes the use of Digital Smile Design and, in particular, the field of use. The study intends to be present which dental fields use "digitization". Progress in this field is constant, and will be of increasing interest to dentistry by proposing a speed of treatment planning and a reliability of results. The digital workflow allows for rehabilitations that are reliable both from an aesthetic and functional point of view, as demonstrated in the review. From this study, the current field of use of Digital Smile Design techniques in the various branches of medicine and dentistry have emerged, as well as information about its reliability.
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Affiliation(s)
- Gabriele Cervino
- Department of Biomedical and Dental Sciences and Morphological and Functional Imaging, Messina University, 98100 Messina, Italy.
| | - Luca Fiorillo
- Department of Biomedical and Dental Sciences and Morphological and Functional Imaging, Messina University, 98100 Messina, Italy.
| | | | - Gianrico Spagnuolo
- Institute of Dentistry, I. M. Sechenov First Moscow State Medical University, Moscow 119146, Russia.
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples "Federico II", 80131 Napoli, Italy.
| | - Marco Cicciù
- Department of Biomedical and Dental Sciences and Morphological and Functional Imaging, Messina University, 98100 Messina, Italy.
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The smiling scan technique: Facially driven guided surgery and prosthetics. J Prosthodont Res 2018; 62:514-517. [DOI: 10.1016/j.jpor.2018.03.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Revised: 02/24/2018] [Accepted: 03/01/2018] [Indexed: 11/23/2022]
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Stanley M, Paz AG, Miguel I, Coachman C. Fully digital workflow, integrating dental scan, smile design and CAD-CAM: case report. BMC Oral Health 2018; 18:134. [PMID: 30086753 PMCID: PMC6081948 DOI: 10.1186/s12903-018-0597-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 07/25/2018] [Indexed: 11/16/2022] Open
Abstract
Background This report is a presentation of a clinical case that follows a full digital workflow. Case presentation A 47-year old man presented with pain in the TMJ (temporomandibular joint) and whose aesthetic concern was having a chipped maxillary central incisor veneer. The concern was solved following a fully digital workflow: it was applied the digital smile design protocol, as well as CAD-CAM monolithic lithium disilicate ceramic veneers and crowns (following a minimal invasive preparation approach). The aim of this rehabilitation was to solve a loss of vertical dimension, subsequent aesthetics and temporomandibular joint disorders. Conclusion Thanks to the evolution of technology in dentistry, it is possible to do a full digital case and solve problems such as loss of vertical dimension successfully. Nevertheless, more clinical studies are needed to obtain consistent results about the digital work flow compared to the conventional technique in loss of vertical dimension cases.
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Affiliation(s)
- Miguel Stanley
- Private Practice at White Clinic, Rua Dr. António Loureiro Borges. Edif. 5, 1° Andar Arquiparque; 1495-131 Algés-, Lisbon, Portugal
| | - Ana Gomes Paz
- Private Practice at White Clinic, Rua Dr. António Loureiro Borges. Edif. 5, 1° Andar Arquiparque; 1495-131 Algés-, Lisbon, Portugal. .,Endodontic Department at FMDUL, Private Practice at White Clinic, Rua Dr. António Loureiro Borges. Edif. 5, 1° Andar Arquiparque, 1495-131, Algés, Portugal.
| | - Inês Miguel
- Private Practice at White Clinic, Rua Dr. António Loureiro Borges. Edif. 5, 1° Andar Arquiparque; 1495-131 Algés-, Lisbon, Portugal
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Blackburn C, Rask H, Awada A. Mechanical properties of resin-ceramic CAD-CAM materials after accelerated aging. J Prosthet Dent 2018; 119:954-958. [DOI: 10.1016/j.prosdent.2017.08.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 08/30/2017] [Accepted: 08/30/2017] [Indexed: 10/18/2022]
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Lin WS, Harris BT, Phasuk K, Llop DR, Morton D. Integrating a facial scan, virtual smile design, and 3D virtual patient for treatment with CAD-CAM ceramic veneers: A clinical report. J Prosthet Dent 2018; 119:200-205. [DOI: 10.1016/j.prosdent.2017.03.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 03/02/2017] [Accepted: 03/02/2017] [Indexed: 10/19/2022]
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