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Burgoa S, Jony de Moura E Costa A, Ventura D, Pinhata-Baptista OH, Cortes ARG. Digital workflow for definitive immediately loaded complete arch CAD-CAM implant-supported prosthesis in 3 appointments without using intraoral scanning. J Prosthet Dent 2024; 132:31-36. [PMID: 35810041 DOI: 10.1016/j.prosdent.2022.05.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 05/11/2022] [Accepted: 05/11/2022] [Indexed: 10/17/2022]
Abstract
This article presents a rapid technique for the accurate transfer of implant positions immediately after image-guided surgery to enable the immediate installation of a definitive complete arch implant-supported prosthesis with an implant biological width of 3 mm within 3 appointments. A sleeveless copy of the implant surgical guide is magnetically connected to a reference guide to ensure the accurate capture of cylindrical titanium transfer abutments. In the laboratory, the sleeveless guide with the splinted transfer abutments attached is used to generate a definitive cast to be scanned with a desktop scanner. The resulting digital definitive cast is then combined with the original meshes of the prosthetically driven virtual treatment plan to enable a definitive computer-aided design and computer-aided manufactured prosthesis to be fabricated and installed with passive fit.
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Affiliation(s)
- Shaban Burgoa
- Private Dental Surgeon, Department of Implant Dentistry GoBeyond Institution (BDS), Curitiba, Brazil
| | | | - Dionir Ventura
- Certified Dental Technician, Ventura Lab, Curitiba, Brazil
| | - Otavio Henrique Pinhata-Baptista
- PhD student, Department of Oral Radiology, School of Dentistry, University of São Paulo (USP), São Paulo, São Paulo, Brazil; Head of Dental Implant Clinic of the Military Hospital of São Paulo Area (HMASP), Brazilian Army, São Paulo, São Paulo, Brazil.
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Elgarba BM, Fontenele RC, Tarce M, Jacobs R. Artificial intelligence serving pre-surgical digital implant planning: A scoping review. J Dent 2024; 143:104862. [PMID: 38336018 DOI: 10.1016/j.jdent.2024.104862] [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: 12/14/2023] [Revised: 01/22/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
OBJECTIVES To conduct a scoping review focusing on artificial intelligence (AI) applications in presurgical dental implant planning. Additionally, to assess the automation degree of clinically available pre-surgical implant planning software. DATA AND SOURCES A systematic electronic literature search was performed in five databases (PubMed, Embase, Web of Science, Cochrane Library, and Scopus), along with exploring gray literature web-based resources until November 2023. English-language studies on AI-driven tools for digital implant planning were included based on an independent evaluation by two reviewers. An assessment of automation steps in dental implant planning software available on the market up to November 2023 was also performed. STUDY SELECTION AND RESULTS From an initial 1,732 studies, 47 met eligibility criteria. Within this subset, 39 studies focused on AI networks for anatomical landmark-based segmentation, creating virtual patients. Eight studies were dedicated to AI networks for virtual implant placement. Additionally, a total of 12 commonly available implant planning software applications were identified and assessed for their level of automation in pre-surgical digital implant workflows. Notably, only six of these featured at least one fully automated step in the planning software, with none possessing a fully automated implant planning protocol. CONCLUSIONS AI plays a crucial role in achieving accurate, time-efficient, and consistent segmentation of anatomical landmarks, serving the process of virtual patient creation. Additionally, currently available systems for virtual implant placement demonstrate different degrees of automation. It is important to highlight that, as of now, full automation of this process has not been documented nor scientifically validated. CLINICAL SIGNIFICANCE Scientific and clinical validation of AI applications for presurgical dental implant planning is currently scarce. The present review allows the clinician to identify AI-based automation in presurgical dental implant planning and assess the potential underlying scientific validation.
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Affiliation(s)
- Bahaaeldeen M Elgarba
- OMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven & Department of Oral and Maxillofacial Surgery, University Hospitals, Campus Sint-Rafael, 3000 Leuven, Belgium & Department of Prosthodontics, Faculty of Dentistry, Tanta University, 31511 Tanta, Egypt.
| | - Rocharles Cavalcante Fontenele
- OMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven & Department of Oral and Maxillofacial Surgery, University Hospitals, Campus Sint-Rafael, 3000 Leuven, Belgium
| | - Mihai Tarce
- Division of Periodontology & Implant Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China & Periodontology and Oral Microbiology, Department of Oral Health Sciences, Faculty of Medicine, KU Leuven, Leuven, Belgium
| | - Reinhilde Jacobs
- OMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven & Department of Oral and Maxillofacial Surgery, University Hospitals, Campus Sint-Rafael, 3000 Leuven, Belgium & Department of Dental Medicine, Karolinska Institute, Stockholm, Sweden
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Campana V, Papa A, Silvetti MA, Del Fabbro M, Testori T. Use of the universal scan template to achieve a predictable optical impression: Preliminary data of a case series study in complete edentulous patients. Clin Implant Dent Relat Res 2024; 26:237-244. [PMID: 37965745 DOI: 10.1111/cid.13292] [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: 01/12/2023] [Revised: 09/26/2023] [Accepted: 10/31/2023] [Indexed: 11/16/2023]
Abstract
BACKGROUND Full-arch IOS scan of edentulous areas rehabilitated with dental implants is nowadays still described as an unpredictable procedure. To improve the accuracy, a universal scan template (UST®) is proposed in this article. The clinician can easily assemble the template with a mechanical coupling, by matching the scan bodies with objects of known dimension characterized by specific markers. The UST® facilitates the scanning of an entire arch on scan bodies, reducing the learning curve, simplifying acquisition movements, shortening the scanning time, and drastically reducing the risk of distortions and aberrations of the scans. MATERIALS AND METHODS In a case series study on 12 patients, the improvement in the accuracy of the scans with UST® was validated by comparing the STL files derived from scans with and without the guide in place. A titanium bar was produced from each optical impression. RESULTS The bars obtained from the optical impressions taken without UST® were found to be nonpassive in the mouth in the majority of the cases. On the contrary with the use of UST® we obtained 12 passive prosthetic rehabilitations. CONCLUSIONS The proposed solution may represent a valid method to improve the predictability of full arch optical impressions on implants.
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Affiliation(s)
- Veronica Campana
- Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, Milano, Italy
- IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | | | | | - Massimo Del Fabbro
- Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, Milano, Italy
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Tiziano Testori
- Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, Milano, Italy
- Department of Implantology and Oral Rehabilitation, Dental Clinic, IRCCS Istituto Ortopedico Galeazzi, Milano, Italy
- Department of Periodontics and Oral Medicine, University of Michigan, School of Dentistry, Ann Arbor, Michigan, USA
- Department of Oral Medicine, Infection and Immunity, Harvard University, School of Dental Medicine, Cambridge, Massachusetts, USA
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Benli M, Al-Haj Husain N, Ozcan M. Mechanical and chemical characterization of contemporary occlusal splint materials fabricated with different methods: a systematic review. Clin Oral Investig 2023; 27:7115-7141. [PMID: 37910242 DOI: 10.1007/s00784-023-05360-0] [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: 03/25/2023] [Accepted: 10/22/2023] [Indexed: 11/03/2023]
Abstract
OBJECTIVE To systematically review studies on various occlusal splint materials and describe their mechanical and chemical properties. METHODS MEDLINE (PubMed), Scopus, and Web of Science searches were conducted for in vitro studies focusing on occlusal splint materials. Two reviewers performed an assessment of the identified studies and data abstraction independently, and this was complimented by an additional hand search. The articles were limited to those in the English language that were published between January 1st, 2012, and December 1st, 2022. RESULTS The initial search yielded 405 search results of which 274 were selected for full-text review following abstract evaluation. 250 articles that did not meet the inclusion criteria were excluded, and the remaining 25 articles (with 1 article identified from the reference lists of included articles) providing mechanical and chemical values were used in this review. Poly methyl methacrylate (PMMA) -based occlusal splint materials showed the highest values in terms of hardness, wear resistance, flexural strength, flexural modulus, e-modulus, and fracture toughness. The material group with the highest water sorption and water solubility was 3D printed (PR) splint materials. In addition, the lowest degree of double bond conversion was also observed in this group of materials. CONCLUSIONS The outcome of this review suggests that mechanically and chemically acceptable properties can be attained with PMMA-based occlusal splint materials using both conventional and digital production methods. PR splint materials should not be considered as the primary choice for long-term treatments due to their low mechanical and chemical properties. CLINICAL RELEVANCE This review provides clinical recommendations for selecting the appropriate material and fabrication method for occlusal splints while taking the patients' needs and the materials´ mechanical and chemical properties into account.
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Affiliation(s)
- Merve Benli
- James B. Edwards College of Dental Medicine, Department of Oral Rehabilitation, Division of Removable Prosthodontics, MUSC, Charleston, USA.
- Department of Prosthodontics, Faculty of Dentistry, Istanbul University, Istanbul, Turkey.
| | - Nadin Al-Haj Husain
- Division of Dental Biomaterials, Clinic for Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, 8032, Zurich, Switzerland
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, 3010, Bern, Switzerland
- Clinic of Masticatory Disorders, Center of Dental Medicine, University of Zurich, 8032, Zurich, Switzerland
| | - Mutlu Ozcan
- Division of Dental Biomaterials, Center for Dental Medicine, Clinic for Reconstructive Dentistry, University of Zurich, Plattenstrasse 11, 8032, Zurich, Switzerland
- Clinic for Chewing Function Disturbances, Center for Dental Medicine, Clinic for Reconstructive Dentistry, University of Zurich, Plattenstrasse 11, 8032, Zurich, Switzerland
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De Rubertis C, Ferrante F, Stefanelli N, Friuli M, Madaghiele M, Demitri C, Palermo A. The accuracy of intra-oral scanners in full arch implant rehabilitation: a narrative review. Br Dent J 2023; 235:887-891. [PMID: 38066152 DOI: 10.1038/s41415-023-6550-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 05/24/2023] [Accepted: 05/29/2023] [Indexed: 12/18/2023]
Abstract
This narrative review aims to study the accuracy of different intra-oral scanner (IOS) devices already available on the market. The accuracy emerged during in vitro, in vivo and ex vivo studies made with IOS devices during the scan of a full arch implant rehabilitation that have been analysed to evaluate which device may be the most suitable in this clinical situation. The literature review was performed by searching topics and keywords using the PubMed and Medline databases, for example, 'digital workflow', 'full arch', 'full arch implant rehabilitation' and 'accuracy of IOS'. Inclusion and exclusion criteria for studies were: correct IMRAD (introduction, methods, results and discussion) structure; article with clear and detailed objectives; consistency of the articles with the purpose of the review; two-year range from the year of publication of the article; reproducible materials and methods; and correct follow-up. Most of the intra-oral scanners employed in vitro provided acceptable accuracy (below a threshold of 150 μm). The main parameters identified for their influence on precision were interim plant distance, body scan design, scanning pattern and operator experience. Even though literature is limited, significant differences emerged between the different models of intra-oral scanners evaluated in the studies considered within this review.
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Affiliation(s)
| | - Franco Ferrante
- Specialist in Oral Surgery, Private Practitioner, Lecce, Italy
| | | | - Marco Friuli
- Department of Engineering for Innovation, University of Salento, Lecce 73100, Italy.
| | - Marta Madaghiele
- Department of Engineering for Innovation, University of Salento, Lecce 73100, Italy
| | - Christian Demitri
- Department of Engineering for Innovation, University of Salento, Lecce 73100, Italy
| | - Andrea Palermo
- College of Medicine and Dentistry, Birmingham, B4 6BN, United Kingdom
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Tarce M, Becker K, Lahoud P, Shujaat S, Jacobs R, Quirynen M. Non-invasive oral implant position assessment: An ex vivo study using a 3D industrial scan as the reference model to mimic the clinical situation. Clin Oral Implants Res 2023. [PMID: 37927146 DOI: 10.1111/clr.14206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/17/2023] [Accepted: 11/01/2023] [Indexed: 11/07/2023]
Abstract
AIM To introduce an objective method to evaluate the accuracy of implant position assessment in partially edentulous patients by comparing different techniques (conventional impression, intraoral scan, CBCT) to a reference 3D model obtained with an industrial scanner, the latter mimicking the clinical situation. MATERIALS AND METHODS Twenty-nine implants were placed in four human cadaver heads using a fully guided flapless protocol. Implant position was assessed using (a) a conventional impression, (b) an intraoral scan, and (c) CBCT and compared to an industrial scan. Three-dimensional models of intraoral scan body and implant were registered to the arch models and the deviation at implant shoulder, apex, and the angle of deviation were compared to each other as well as to the reference model. RESULTS The three assessment techniques showed statistically significant deviations (p < .01) from the industrial scan, for all measurements, with no difference between the techniques. The maximum deviation at the implant shoulder was 0.16 mm. At the implant apex this increased to 0.38 mm. The intraoral scan deviated significantly more than the CBCT (0.12 mm, p < .01) and the conventional impression (0.10 mm, p = .02). The maximum implant angle deviation was 1.0°. The intraoral scan deviated more than the conventional impression (0.3°, p = .02). CONCLUSION All assessment techniques deviated from the reference industrial scan, but the differences were relatively small. Intraoral scans were slightly less accurate than both conventional impressions and CBCT. Depending on the application, however, this inaccuracy may not be clinically relevant.
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Affiliation(s)
- Mihai Tarce
- Division of Periodontology & Implant Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
- Periodontology and Oral Microbiology, Department of Oral Health Sciences, Faculty of Medicine, KU Leuven, Leuven, Belgium
| | - Kathrin Becker
- Charité- Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Orthodontics and Dentofacial Orthopedics, Berlin, Germany
| | - Pierre Lahoud
- Periodontology and Oral Microbiology, Department of Oral Health Sciences, Faculty of Medicine, KU Leuven, Leuven, Belgium
- OMFS-IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven, Leuven, Belgium
- Department of Oral & Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Sohaib Shujaat
- OMFS-IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven, Leuven, Belgium
- Department of Oral & Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium
- King Abdullah International Medical Research Center, Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, King Saud bin Abdulaziz University for Health Sciences, Ministry of National Guard Health Affairs, Riyadh, Kingdom of Saudi Arabia
| | - Reinhilde Jacobs
- OMFS-IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven, Leuven, Belgium
- Department of Oral & Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Marc Quirynen
- Periodontology and Oral Microbiology, Department of Oral Health Sciences, Faculty of Medicine, KU Leuven, Leuven, Belgium
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Gao M, Guo X, Fu Y, Li M, Ma X, Chen Z. Comparison of the Time and Accuracy of Intraoral Scans Performed by Dentists, Nurses, Postgraduates, and Undergraduates. Oper Dent 2023; 48:648-656. [PMID: 37881030 DOI: 10.2341/23-013-c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/17/2023] [Indexed: 10/27/2023]
Abstract
OBJECTIVE This study aimed to assess the scanning time (ST) and accuracy of 10 repeated upper and lower dentition scans by four groups of operators with different professional backgrounds. METHODS There were a total of 32 participants, including dentists, nurses, postgraduates, and undergraduates (n=8). They received the same training about intraoral scanning and then performed 10 repeat scans on the plaster maxillary and mandibular dentition models in a manikin head, with the first five scans being the T1 phase and the last five scans being the T2 phase. Each ST was recorded. Trueness and precision were evaluated by root mean square (RMS) value gained from alignments of corresponding virtual models. For statistical analysis, the paired-sample t-tests, one-way ANOVA, and Pearson correlation tests were employed (α=0.05). RESULTS Limiting the comparison in scan phase and scan target the sequence of STs for the four groups was the same (p<0.05), by which undergraduates, postgraduates, nurses, and dentists were in descending order. Undergraduates gained the best precision, followed by postgraduates, dentists, and nurses, in both maxillary and mandibular scanning (p<0.05). Compared with corresponding items of the T1 phase, the trueness of the T2 phase was much higher (p<0.05), while the ST of the T2 phase was much shorter (p<0.05). CONCLUSIONS The operator's professional background affects the precision and scanning time but not the trueness. Most dental personnel have good access to the intraoral scanner. As the number of scans increased, the accuracy and scanning efficiency also improved.
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Affiliation(s)
- M Gao
- Maomao Gao, MS, Department of Prosthodontics, Hospital of Stomatology Hebei Medical University, Shijiazhuang City, Hebei, China
| | - X Guo
- Xiaoyang Guo, MS, Department of Prosthodontics, Hospital of Stomatology, Hebei Medical University, Shijiazhuang City, Hebei, China
| | - Y Fu
- Yixuan Fu, MS, Department of Prosthodontics, Hospital of Stomatology Hebei Medical University, Shijiazhuang City, Hebei, China
| | - M Li
- Meng Li, Hospital of Stomatology Hebei Medical University, Shijiazhuang City, Hebei, China
| | - X Ma
- Xiaoping Ma, Restoration Technician's Studio of Hospital of Stomatology Hebei Medical University, Shijiazhuang City, Hebei, China
| | - Z Chen
- *Zhiyu Chen, DDS, Department of Prosthodontics, Hospital of Stomatology Hebei Medical University, Shijiazhuang City, Hebei, China
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Pullishery F, Huraib W, Alruhaymi AS, Alharandah WA, AlDara EW, Benten MM, Alassaf DM, Babatin WMA, Mohsen NMM. Intraoral Scan Accuracy and Time Efficiency in Implant-Supported Fixed Partial Dentures: A Systematic Review. Cureus 2023; 15:e48027. [PMID: 38034200 PMCID: PMC10688193 DOI: 10.7759/cureus.48027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/31/2023] [Indexed: 12/02/2023] Open
Abstract
The digital implant impression technique (DIT) and conventional implant impression technique (CIT) workflows in implant-supported fixed partial dentures (FPDs) have not been extensively compared in prior studies. Moreover, there is no agreement on the more accurate method that entails less time in the laboratory and during the clinical phases of fabrication and delivery of the prosthesis, respectively. This review aimed to assess the precision of the imaging procedure and overall fabrication time of the DIT and CIT for the implant-supported FPDs. An electronic search was performed using PubMed, Scopus, EMBASE, Cochrane Oral Health Group, and Dentistry and Oral Science Source databases through EBSCO for relevant studies from January 2014 to April 2023. Following the preliminary screening, the studies that met the inclusion criteria underwent full-text review in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The Cochrane Collaboration risk of bias appraisal tool and Newcastle-Ottawa scale were applied to assess the quality of randomized controlled trials (RCTs) and non-randomized prospective clinical studies, respectively. The initial search yielded 332 studies, and after excluding duplicates, 241 papers were available for screening. Titles and abstracts were reviewed, and 97 articles were chosen for full-text review by two authors independently. Furthermore, 89 articles were excluded in compliance with the PICOS question, and eight studies were chosen for qualitative analysis. Hence, the review comprised two RCTs and six prospective clinical studies. The time efficiency of the implant-supported FPDs was examined in four investigations, three of which used the Trios 3 scanner and one used the Intero scanner. The three-dimensional accuracy of DIT and CIT was compared in six clinical comparative studies. One of the RCTs was rated to have a high risk of bias and the other with a moderate quality of evidence. The six prospective studies were rated to have high-quality of evidence. The findings of this review indicate the prospective applicability of future intraoral scanning systems. The DIT was reported to be outstanding in terms of patient preferences and total fabrication time efficiency. Additional in vivo studies are needed to establish the therapeutic usefulness and time efficiency of integrating DIT in more comprehensive settings.
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Affiliation(s)
- Fawaz Pullishery
- Community Dentistry and Research, Batterjee Medical College, Jeddah, SAU
| | - Wayel Huraib
- Fixed Prosthodontics, Dentistry Program, Batterjee Medical College, Jeddah, SAU
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Kanjanasavitree P, Thammajaruk P, Guazzato M. Comparison of different artificial landmarks and scanning patterns on the complete-arch implant intraoral digital scans. J Dent 2022; 125:104266. [PMID: 35995084 DOI: 10.1016/j.jdent.2022.104266] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 07/19/2022] [Accepted: 08/18/2022] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVES The purpose of this study was to compare the effects of four types of artificial landmarks and three different scanning patterns on the accuracy of complete-arch implant intraoral digital scans. METHODS An edentulous mandibular model with 4 dental implants (Osstem) was prepared as the master reference model (MRM) and scanned with laboratory scanner (E4 Lab Scanner®). Then, the model was modified with four artificial landmarks: (i) CON- unmodified MRM, (ii) PIP- pressure-indicating paste brushed over the edentulous ridge, (iii) LD- liquid dam markers placed on the edentulous ridge, and (iv) FL- floss tied with pattern resin between the scan bodies. In each group, the modified model was scanned with three different scanning patterns: (i) LB- linguo-buccal pattern, (ii) SS- s-shaped pattern, and (iii) QU- quadrant pattern (n = 10/subgroup) using an intraoral scanner (Trios®4). Scans in STL format were exported and superimposed with MRM file using an inspection software (Geomagic Control X). Accuracy (trueness and precision) was evaluated by calculating the deviation, root mean square (RMS). Results were analyzed using two-way ANOVA, one-way ANOVA and Games-Howell (α = 0.05). RESULTS Significant differences in accuracy values were found across different artificial landmarks and scanning patterns as the LD artificial landmark with QU pattern showed the highest accuracy. The lowest accuracy was recorded in CON with LB pattern, PIP artificial landmark with LB pattern, and FL artificial landmark with SS pattern. CONCLUSIONS The artificial landmarks and scanning patterns had a significant effect on the accuracy of the complete-arch implant intraoral digital scans. CLINICAL SIGNIFICANCE When performing complete-arch digital scans with four dental implants, clinicians should select proper artificial landmark and scanning pattern, as the artificial landmark and scanning pattern significantly affect the accuracy of the scan when using an intraoral scanner. ®.
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Affiliation(s)
- Primprapa Kanjanasavitree
- Department of Prosthetic Dentistry, Faculty of Dentistry, Prince of Songkla University, Songkhla 90110, Thailand
| | - Putsadeeporn Thammajaruk
- Department of Prosthetic Dentistry, Faculty of Dentistry, Prince of Songkla University, Songkhla 90110, Thailand.
| | - Massimiliano Guazzato
- Discipline of Prosthodontics, School of Dentistry, The University of Sydney, New South Wales 2006, Australia
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Hou X, Xu X, Zhao M, Kong J, Wang M, Lee ES, Jia Q, Jiang HB. An overview of three-dimensional imaging devices in dentistry. J ESTHET RESTOR DENT 2022; 34:1179-1196. [PMID: 35968802 DOI: 10.1111/jerd.12955] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 07/27/2022] [Accepted: 07/28/2022] [Indexed: 12/27/2022]
Abstract
OBJECTIVE To review four types of three-dimensional imaging devices: intraoral scanners, extraoral scanners, cone-beam computed tomography (CBCT), and facial scanners, in terms of their development, technologies, advantages, disadvantages, accuracy, influencing factors, and applications in dentistry. METHODS PubMed (National Library of Medicine) and Google Scholar databases were searched. Additionally, the scanner manufacturers' websites were accessed to obtain relevant data. Four authors independently selected the articles, books, and websites. To exclude duplicates and scrutinize the data, they were uploaded to Mendeley Data. In total, 135 articles, two books, and 17 websites were included. RESULTS Research and clinical practice have shown that oral and facial scanners and CBCT can be used widely in various areas of dentistry with high accuracy. CONCLUSION Although further advancement of these devices is desirable, there is no doubt that digital technology represents the future of dentistry. Furthermore, the combined use of different devices may bring dentistry into a new era. These four devices will play a significant role in clinical utility with high accuracy. The combined use of these devices should be explored further. CLINICAL SIGNIFICANCE The four devices will play a significant role in clinical use with high accuracy. The combined use of these devices should be explored further.
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Affiliation(s)
- Xingyu Hou
- The Conversationalist Club, School of Stomatology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Xiaotong Xu
- The Conversationalist Club, School of Stomatology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Menghua Zhao
- The Conversationalist Club, School of Stomatology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Jiawen Kong
- The Conversationalist Club, School of Stomatology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Mingchang Wang
- The Conversationalist Club, School of Stomatology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Eui-Seok Lee
- Department of Oral and Maxillofacial Surgery, Graduate School of Clinical Dentistry, Korea University, Seoul, Republic of Korea
| | - Qi Jia
- The Conversationalist Club, School of Stomatology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Heng Bo Jiang
- The Conversationalist Club, School of Stomatology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
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Kong L, Li Y, Liu Z. Digital versus conventional full-arch impressions in linear and 3D accuracy: a systematic review and meta-analysis of in vivo studies. Clin Oral Investig 2022; 26:5625-5642. [PMID: 35786783 DOI: 10.1007/s00784-022-04607-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 06/20/2022] [Indexed: 11/03/2022]
Abstract
OBJECTIVES The purpose of this systematic review was to compare the accuracy of digital and conventional full-arch impressions in vivo. MATERIALS AND METHODS This systematic review was conducted according to the PRISMA and registered at the PROSPERO (CRD42021232736). Electronic and hand searches were performed to identify in vivo studies comparing the linear or 3D accuracy of digital and conventional impressions. The risk of bias (ROB) of included studies was assessed by QUADAS-2, and the overall quality of evidence was assessed by GRADE. RESULTS Twenty-two studies met the inclusion criteria, and 13 studies were included in the meta-analysis. There was no significant difference between digital and conventional impressions in the linear measurements of tooth width, anterior Bolton ratio, overall Bolton ratio, intercanine distance (ICD), and intermolar distance (IMD). The repeated measurement mean errors (RMEs) were less than 0.1 mm, the intra-examiner intraclass correlation coefficient (ICC) values were more than 0.9, and the inter-examiner ICC values were more than 0.87 for both impression techniques. The 3D deviation between digital and alginate impressions was 0.09 mm. The 3D precision of both impression techniques was less than 0.1 mm. CONCLUSIONS The trueness of digital and alginate full-arch impressions was similar, and both impression techniques showed high precision. More research was needed to compare digital impressions and other conventional impression materials. CLINICAL RELEVANCE For patients with completely natural dentition, the digital impressions obtained directly from intraoral scanning can be considered a viable alternative to alginate impressions.
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Affiliation(s)
- Lin Kong
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yabing Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Zhijian Liu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China. .,Department of Orthodontics, School and Hospital of Stomatology, Wuhan University, Luoyu Road 237, Hongshan District, Wuhan, 430079, China.
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Scanning Distance Influence on the Intraoral Scanning Accuracy—An In Vitro Study. MATERIALS 2022; 15:ma15093061. [PMID: 35591397 PMCID: PMC9103333 DOI: 10.3390/ma15093061] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/12/2022] [Accepted: 04/19/2022] [Indexed: 02/04/2023]
Abstract
Intraoral scanners (IOS) have reached a point where their impact in the dental office cannot be denied. The distance between the tip of the IOS and the preparation may have implications on the accuracy of the digital model. The objective of this study was to evaluate the differences in accuracy between digital impressions in the scenario of different scanning distances. Twenty consecutive scans were performed at five predetermined distances: 5 mm, 10 mm, 15 mm, 20 mm and 23 mm by a single operator. The scanning distance of 10 mm displayed the best accuracy with an overall trueness value of 23.05 μm and precision value of 4.2 μm. The drawn conclusion was that increased scanning distances can decrease the accuracy of a digital impression.
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13
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ACCURACY OF INTRAORAL SCANNERS VERSUS TRADITIONAL IMPRESSIONS: A RAPID UMBRELLA REVIEW. J Evid Based Dent Pract 2022; 22:101719. [DOI: 10.1016/j.jebdp.2022.101719] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 01/29/2022] [Accepted: 03/11/2022] [Indexed: 12/13/2022]
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14
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Bishti S, Tuna T, Rittich A, Wolfart S. Patient-reported outcome measures (PROMs) of implant-supported reconstructions using digital workflows: A systematic review and meta-analysis. Clin Oral Implants Res 2021; 32 Suppl 21:318-335. [PMID: 34642981 DOI: 10.1111/clr.13846] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 07/09/2021] [Accepted: 07/20/2021] [Indexed: 12/22/2022]
Abstract
OBJECTIVES To summarize the existing evidence on patient-reported outcome measures (PROMs) of implant-supported restorations fabricated using a digital workflow in comparison to conventional manufacturing procedures. METHODS A PICO strategy was executed using an electronic and manual search focusing on clinical studies evaluating PROMs of implant-supported restorations. Only clinical trials assessing conventional versus digital workflows for implant-supported restorations were included. PROMS on implant impression procedures and fabrication of final restorations were evaluated using random and fixed effects meta-analyses, while implant planning/placement was reported descriptively. RESULTS Among 1062 titles identified, 14 studies were finally included, and only seven studies were eligible for meta-analysis. For implant planning and placement, only a qualitative analysis was possible due to heterogeneity between the studies. For impression procedures, the random effects model revealed statistically significant differences in taste, anxiety, nausea, pain, shortness of breath, and discomfort in favor of optical impressions. No significant difference in the subjective perception of the duration of an impression could be reported. For the final fabrication of restorations, no significant difference between veneered and monolithic posterior restorations was found in terms of esthetic, function, and general satisfaction. CONCLUSION Most of the studies reporting about PROMs were published during the last ten years and limited to implant-supported single crowns in the posterior region. Based on PROMs, no scientifically proven recommendation for guided implant placement could be given at this time. Patients showed high preference for optical impressions, whereas no differences between veneered and monolithic restorations could be reported.
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Affiliation(s)
- Shaza Bishti
- Department of Prosthodontics and Biomaterials, RWTH University, Aachen, Germany
| | - Taskin Tuna
- Department of Prosthodontics and Biomaterials, RWTH University, Aachen, Germany
| | - Anne Rittich
- Department of Prosthodontics and Biomaterials, RWTH University, Aachen, Germany
| | - Stefan Wolfart
- Department of Prosthodontics and Biomaterials, RWTH University, Aachen, Germany
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15
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Çakmak G, Yilmaz H, Treviño Santos A, Kökat AM, Yilmaz B. Effect of Scanner Type and Scan Body Location on the Accuracy of Mandibular Complete-Arch Digital Implant Scans: An In Vitro Study. J Prosthodont 2021; 31:419-426. [PMID: 34453466 PMCID: PMC9290536 DOI: 10.1111/jopr.13418] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 08/24/2021] [Indexed: 11/29/2022] Open
Abstract
Purpose To compare the accuracy (trueness and precision) of scans of a newly introduced intraoral scanner (IOS) (Virtuo Vivo) and a widely used IOS (Trios 3) to a laboratory scanner (LBS) (Cares 7 SERIES) for 6 implants placed in an edentulous mandible, and to investigate the effect of scan body location on trueness. Material and methods Scanbodies were tightened on 6 implants placed in an edentulous polymethylmethacrylate mandibular model. An industrial scanner was utilized to generate a master reference model STL file. Three different scanners were used to scan the model (2 IOSs and 1 LBS), and the scans (n = 10) were exported into STL files. Best‐fitting algorithm was used to superimpose test scans over the MRM‐STL (nominal). ANOVA and Tukey HSD tests were performed to analyze the data (α = 0.05). Results The distance deviations in Car7‐LBS scans were the highest (p < 0.001), whereas those in Tri‐IOS scans were the lowest (p < 0.001). Vir‐IOS had lower angular deviations than those of Tri‐IOS (p = 0.031). In Vir‐IOS scans, SB5 had higher distance deviations than SB2 (p = 0.029) and SB3 (p = 0.044). In Car7‐LBS scans, SB1 had higher distance deviations than SB3 (p = 0.015) and SB5 (p = 0.005). In Tri‐IOS scans, SB1 had higher mean distance deviations than SB2 and SB5 (p = 0.005). Vir‐IOS had lower precision than Car7‐LBS (distance deviation data) (p = 0.01). No difference was found among scanners for the precision of angular deviation data (p = 0.840). Conclusion When trueness and precision were considered, distance and angular deviations depended on the scanner type. None of the scanners outperformed others in accuracy considering all distance and angular deviations. Scan body location affected only the trueness (distance deviations).
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Affiliation(s)
- Gülce Çakmak
- Buser Foundation Scholar for Implant Dentistry, Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Hakan Yilmaz
- Department of Orthodontics, Yeditepe University, Faculty of Dentistry, Istanbul, Turkey
| | - Alejandro Treviño Santos
- Postdoctoral and Research Division, Faculty of Dentistry, National Autonomous University of Mexico, Mexico City, Mexico
| | - Ali Murat Kökat
- Department of Prosthodontics, Istanbul Okan University, Faculty of Dentistry, Istanbul, Turkey
| | - Burak Yilmaz
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland.,Department of Restorative, Preventive and Pediatric Dentistry, School of Dental Medicine, University of Bern, Bern, Switzerland.,Division of Restorative and Prosthetic Dentistry, The Ohio State University College of Dentistry, OH
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16
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Sallorenzo A, Gómez-Polo M. Comparative study of the accuracy of an implant intraoral scanner and that of a conventional intraoral scanner for complete-arch fixed dental prostheses. J Prosthet Dent 2021; 128:1009-1016. [PMID: 33836855 DOI: 10.1016/j.prosdent.2021.01.032] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 01/21/2021] [Accepted: 01/21/2021] [Indexed: 11/25/2022]
Abstract
STATEMENT OF PROBLEM Most of the available digital systems are designed to image teeth and soft tissue rather than dental implants. However, although some are marketed specifically to record implant position, whether these products are better for implant scanning is unclear. PURPOSE The purpose of this in vitro study was to compare the accuracy of an implant intraoral scanner (PiC camera) with that of an intraoral scanner (TRIOS3) for 6 implants placed in completely edentulous arches. MATERIAL AND METHODS Two maxillary master models with 6 external hexagonal Ø5.1-mm implants were used, one with parallel and the other with angled implants. The reference values were obtained with a coordinate measuring machine. Ten scans were made per model (parallel and angled) and system (intraoral and implant) (n=10), after which the 3-dimensional coordinates for each implant were determined with a computer-aided design software program and compared with the linear and angular reference values. Statistical significance was determined with the Student t test (α=.05). RESULTS Statistically significant differences (P<.001) were found in both precision and trueness. The overall errors relative to the reference in the parallel implant-supported casts based on the implant scanner were 20 μm (P=.031) and 0.354 degrees (P=.087) compared with 100 μm (P<.001) and 1.177 degrees (P<.001) in the cast based on conventional digital scans. The global errors in the angled implant casts were 10 μm (P=.055) and 0.084 degrees (P=.045) for the implant digital scans and 23 μm (P=.179) and 0.529 degrees (P<.001) for the conventional digital scans. CONCLUSIONS The implant intraoral scanner delivered greater precision and trueness than the conventional instrument for imaging complete-arch implant-supported prostheses.
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Affiliation(s)
- Alessandro Sallorenzo
- Postgraduate Specialist in Advanced-Prosthodontics, Department of Conservative Dentistry and Prosthodontics, School of Dentistry, Complutense University of Madrid, Madrid, Spain.
| | - Miguel Gómez-Polo
- Associate Professor, Department of Conservative Dentistry and Prosthodontics, School of Dentistry, Complutense University of Madrid, Madrid, Spain; Head of Postgraduate Specialist Programme in Advanced Implant-Prosthodontics, Complutense University of Madrid, Madrid, Spain
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17
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Peláez Rico J, Cortés-Bretón Brinkmann J, Carrión Martín M, Albanchez González M, Tobar Arribas C, Rodríguez Alonso V, López Suárez C, Suárez García MJ. Digital Impression taking for Maxillary Full-Arch Restoration with Immediate Loading. A Case Report. J ORAL IMPLANTOL 2021; 48:125-132. [PMID: 33710306 DOI: 10.1563/aaid-joi-d-20-00117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The aim of this clinical report is to describe a maxillary full-arch implant supported restoration with immediate loading performed by means of an entirely digital workflow with photogrammetric system and intraoral scanning. A female patient with an edentulous maxillary arch attended the dental clinic seeking a maxillary fixed restoration. After treatment planning, six implants were placed using a surgical splint fabricated digitally by intraoral scanning of her previous removable prosthesis. Multi-unit abutments were fitted and two digital impressions were taken, one with a photogrammetric system for determining implant positions, and the other with an intraoral scanner for soft tissue registration. The acrylic resin structure of the immediate prosthesis was milled and placed within 8 hours of implant surgery. This provisional structure fitted correctly and provided adequate esthetics and function. Radiographic and clinical follow-up after 24 months observed adequate implant evolution.
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Affiliation(s)
- Jesús Peláez Rico
- Department of Conservative Dentistry and Orofacial Prosthodontics, Faculty of Dentistry. Complutense University of Madrid, Spain
| | - Jorge Cortés-Bretón Brinkmann
- Universidad Complutense de Madrid Facultad de Odontologia Dental Specialties, faculty of dentistry Pza Ramon y Cajal s/n SPAIN Madrid Madrid 28040 0034679295144 Universidad Complutense de Madrid Facultad de Odontologia
| | - María Carrión Martín
- Department of Conservative Dentistry and Orofacial Prosthodontics, Faculty of Dentistry. Complutense University of Madrid, Spain
| | - Mabel Albanchez González
- Department of Conservative Dentistry and Orofacial Prosthodontics, Faculty of Dentistry. Complutense University of Madrid, Spain
| | - Celia Tobar Arribas
- Department of Conservative Dentistry and Orofacial Prosthodontics, Faculty of Dentistry. Complutense University of Madrid, Spain
| | - Verónica Rodríguez Alonso
- Department of Conservative Dentistry and Orofacial Prosthodontics, Faculty of Dentistry. Complutense University of Madrid, Spain
| | - Carlos López Suárez
- Department of Conservative Dentistry and Orofacial Prosthodontics, Faculty of Dentistry. Complutense University of Madrid, Spain
| | - María Jesús Suárez García
- Department of Conservative Dentistry and Orofacial Prosthodontics, Faculty of Dentistry. Complutense University of Madrid, Spain
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