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Khalaf KMAES, Rashad HMA, Mostafa TMN. Tissue surface adaptation and retention of digital obturator after one year of use. BMC Oral Health 2024; 24:908. [PMID: 39113006 PMCID: PMC11308588 DOI: 10.1186/s12903-024-04639-2] [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: 09/21/2023] [Accepted: 07/19/2024] [Indexed: 08/10/2024] Open
Abstract
BACKGROUND Effect of aging on tissue adaptability and retention of digital obturator is still under investigation. METHODS A maxillary Armany (class I) epoxy reference model was scanned to fabricate digital obturator fabricated from milled Co-Cr framework and 3D printed bulb. A color map of the scanned reference and digital obturator was made using Geomagic software to evaluate the accuracy of fit before and after cyclic loading using ROBOTA chewing simulator at 37,500, 75,000 and 150,000 cycles to simulate clinically 3-, 6- and 12-months chewing condition. Insertion-removal condition simulating the placement and removal of the obturator was done using repeated 360, 720 and 1440 cycles and retention was evaluated before and after the repeated cycles. Data were collected, tabulated and statistically analyzed using Statistical Package for Social Sciences (IBM SPSS Statistics 26). Student t-test and multi variable ANOVA test were used to detect significance. P-value < 0.05 was considered significant difference. RESULTS For retention test: There was a significant difference between baseline and 3, 6 and12 months. For the tissue surface adaptation test: There was significant difference at all measured areas (P-value < 0.05) before and after application of load. CONCLUSION digitally designed and fabricated obturator was highly retentive and has excellent tissue surface adaptation upon fabrication, After application of load; reduction of retention and lack of tissue adaptation were resulted. THE CLINICAL IMPLICATION: of this manuscript is that digital obturator can be used successfully with the shortcomings of loosening retention and adaptation afterwhile. So, clinical trials should investigate the clinical acceptance of these shortcomings.
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Affiliation(s)
| | - Hoda Mohamed Amin Rashad
- Prosthodontic Department, Faculty of Dentistry, Tanta University, Elgeish st. Tanta, Tanta, Egypt
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2
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Zhang T, Zheng Y, Zhong S, Bai S. Fully integrated additive manufacturing of an obturator prosthesis for an edentulous patient with a maxillectomy defect. J Prosthet Dent 2024:S0022-3913(24)00375-5. [PMID: 38942715 DOI: 10.1016/j.prosdent.2024.05.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 05/07/2024] [Accepted: 05/08/2024] [Indexed: 06/30/2024]
Abstract
Maxillary defects pose challenges for prosthodontists, especially when patients have no remaining teeth. This clinical report describes rehabilitation with a complete denture obturator fabricated in 2 visits for an edentulous patient after a maxillectomy. The obturator base and artificial teeth were digitally designed and merged into a 1-piece prosthesis. Following a virtual reduction, the integrated prosthesis and a gingival veneer were calculated and then printed and bonded together to complete the fabrication. Balanced occlusion was achieved with the assistance of a digital occlusion analyzer at the insertion visit. This approach avoided base-tooth assembly deviations and provided a prosthesis with good patient-reported outcomes at the 6-month follow-up.
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Affiliation(s)
- Tingmin Zhang
- Graduate student, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Digital Dentistry Center, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, PR China
| | - Yuying Zheng
- Graduate student, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Digital Dentistry Center, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, PR China
| | - Sheng Zhong
- Dental Technologist, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Digital Dentistry Center, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, PR China
| | - Shizhu Bai
- Associate Professor, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Digital Dentistry Center, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, PR China.
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3
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Srivastava G, Padhiary SK, Mohanty N, Patil PG, Panda S, Cobo-Vazquez C, Çakmak G, Molinero-Mourelle P. Digital workflow feasibility for the fabrication of intraoral maxillofacial prosthetics after surgical resection: a systematic literature review. Acta Odontol Scand 2024; 83:392-403. [PMID: 38895776 PMCID: PMC11302490 DOI: 10.2340/aos.v83.40870] [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: 04/10/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024]
Abstract
OBJECTIVES To evaluate the current evidence of digital workflow feasibility based on the data acquisition methods and the software tools used to fabricate intraoral prostheses for patients with partial or total maxillary and mandibular defects. MATERIALS AND METHODS An electronic search was performed in PubMed, SCOPUS, and Web of Science using a combination of relevant keywords: digital workflow, digital designing, computer-assisted design-computer aided manufacturing, 3D printing, maxillectomy, and mandibulectomy. The Joanna Briggs Institute Critical Appraisal Tool was used to assess the quality of evidence in the studies reviewed. RESULTS From a total of 542 references, 33 articles were selected, including 25 on maxillary prostheses and 8 on mandibular prostheses. The use of digital workflows was limited to one or two steps of the fabrication of the prostheses, and only four studies described a complete digital workflow. The most preferred method for data acquisition was intraoral scanning with or without a cone beam computed tomography combination. CONCLUSION Currently, the fabrication process of maxillofacial prostheses requires combining digital and conventional methods. Simplifying the data acquisition methods and providing user-friendly and affordable software may encourage clinicians to use the digital workflow more frequently for patients requiring maxillofacial prostheses.
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Affiliation(s)
- Gunjan Srivastava
- Department of Prosthodontics, Institute of Dental Sciences, Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar, India.
| | - Subrat Kumar Padhiary
- Department of Oral and Maxillofacial Surgery, Institute of Dental Sciences, Siksha 'O' Anusandhan Deemed to be Univesity, Bhubaneswar, India
| | - Neeta Mohanty
- Department of Oral and Maxillofacial Pathology, Institute of Dental Sciences, Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar, India
| | - Pravinkumar G Patil
- Department of Prosthodontics, Division of Restorative Dentistry, School of Dentistry, International Medical University, Kuala Lumpur, Malaysia
| | - Saurav Panda
- Department of Periodontics, Institute of Dental Sciences, Siksha 'O' Anusandhan, University, Bhubaneswar, India
| | - Carlos Cobo-Vazquez
- Department of Dental Clinical Specialties, Faculty of Dentistry, Complutense University of Madrid, Madrid, Spain
| | - Gülce Çakmak
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Pedro Molinero-Mourelle
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
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Özcivelek T, Kılıçarslan MA. Full digital workflow of a 2-piece obturator with polyetherketoneketone in a patient with maxillectomy and trismus: A clinical and laboratory report. J Prosthet Dent 2024; 131:346-351. [PMID: 37487802 DOI: 10.1016/j.prosdent.2023.06.012] [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: 04/14/2023] [Revised: 06/09/2023] [Accepted: 06/09/2023] [Indexed: 07/26/2023]
Abstract
The computer-aided design and computer-assisted manufacturing of a 2-piece definitive palatal obturator 3D printed from polyetherketoneketone and 2 acrylic resins with a fully digital workflow are presented for a patient who was diagnosed with adenoid cystic carcinoma and who developed severely limited mouth opening after surgery and radiotherapy. The 18-month follow-up period revealed satisfactory function, tissue compatibility, retention, and esthetics for this patient with a maxillectomy and severe trismus.
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Affiliation(s)
- Tuğgen Özcivelek
- Assistant Professor, Department of Prosthodontics, Gülhane Faculty of Dentistry, Health Sciences University, Ankara, Turkey.
| | - Mehmet Ali Kılıçarslan
- Professor, Department of Prosthodontics and Medical Design Application and Research Center (MEDITAM), Faculty of Dentistry, Ankara University, Ankara, Turkey
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Ma D, Wang X, Zhang T, Bai S. A digital and cast-free workflow for fabricating a definitive hollow obturator prosthesis for a maxillectomy defect: A dental technique. J Prosthet Dent 2023:S0022-3913(23)00759-X. [PMID: 38123417 DOI: 10.1016/j.prosdent.2023.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 11/06/2023] [Accepted: 11/06/2023] [Indexed: 12/23/2023]
Abstract
This article presents a novel digital and cast-free workflow for fabricating a definitive hollow obturator prosthesis. A digital altered cast is made after the framework-fitting appointment to maximize support. The framework, hollow obturator base, and teeth are digitally designed, additively manufactured, and then assembled precisely without a cast. This method simplifies the laboratory process, reduces human errors, and provides a prosthesis with high accuracy and good fit.
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Affiliation(s)
- Dan Ma
- Graduate student, Digital Center, School of Stomatology, The Fourth Military Medical University, State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an, Shaanxi, PR China
| | - Xin Wang
- Graduate student, Digital Center, School of Stomatology, The Fourth Military Medical University, State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an, Shaanxi, PR China
| | - Tingmin Zhang
- Graduate student, Digital Center, School of Stomatology, The Fourth Military Medical University, State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an, Shaanxi, PR China
| | - Shizhu Bai
- Associate Professor, Digital Center, School of Stomatology, The Fourth Military Medical University, State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an, Shaanxi, PR China.
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Green JJ, Mills CC, Critchlow SB. An obturator prosthesis for a 4-year-old child following treatment of a juvenile trabecular ossifying fibroma with a maxillary resection. J Prosthet Dent 2023:S0022-3913(23)00375-X. [PMID: 37451901 DOI: 10.1016/j.prosdent.2023.05.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 05/24/2023] [Accepted: 05/25/2023] [Indexed: 07/18/2023]
Abstract
Juvenile trabecular ossifying fibroma (JTOF) is a benign fibro-osseous lesion that usually occurs in the maxilla or mandible. Individuals with JTOF of the maxilla will most commonly require a resection that can result in a significant palatal defect. Appearance and articulatory, masticatory, and deglutitory functions can be restored with a clasp-retained obturator. Providing a prosthetic obturator with adequate retention in situations where the teeth cannot accommodate clasps because of insufficient eruption can be challenging. This article describes a technique that has been developed for such instances-in this situation, a 4-year-old child who had undergone a maxillary resection because of a JTOF.
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Affiliation(s)
- JamesI J Green
- Maxillofacial and Dental Laboratory Manager, Maxillofacial and Dental Department, Great Ormond Street Hospital for Children NHS Foundation Trust, London, England, United Kingdom.
| | - Caroline C Mills
- Consultant in Oral and Maxillofacial Surgery, Maxillofacial and Dental Department, Great Ormond Street Hospital for Children NHS Foundation Trust, London, England, United Kingdom
| | - Simon B Critchlow
- Consultant in Restorative Dentistry, Maxillofacial and Dental Department, Great Ormond Street Hospital for Children NHS Foundation Trust, London, England, United Kingdom
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Prawatvatchara W, Limpuangthip N, Techapiroonthong S, Thamrongananskul N. Three-piece digital complete denture obturator with a heptagonal key assembly for a patient with a total maxillectomy: A dental technique. J Prosthet Dent 2023:S0022-3913(23)00413-4. [PMID: 37438165 DOI: 10.1016/j.prosdent.2023.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 05/30/2023] [Accepted: 06/01/2023] [Indexed: 07/14/2023]
Abstract
Digital workflows have been used in the oral rehabilitation of patients with maxillofacial defects. However, dental techniques for fabricating a denture obturator for patients with a total maxillectomy are lacking. This technical report describes the use of digital technology to produce a milled complete denture obturator using an intraoral scanner, a computer-aided design software program, and computer-aided manufacturing. The limited size of the milled polymethylmethacrylate disk was resolved by separating the prosthesis into 3 pieces: the obturator base, denture base, and artificial teeth.
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Affiliation(s)
- Wisarut Prawatvatchara
- Lecturer, Department of Prosthodontics, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Nareudee Limpuangthip
- Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.
| | - Siraphob Techapiroonthong
- Research Assistant, Department of Prosthodontics, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Niyom Thamrongananskul
- Associate Professor, Department of Prosthodontics, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
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Ali IE, Enomoto K, Sumita Y, Wakabayashi N. Combined digital-conventional workflow to fabricate a definitive obturator from an interim obturator for a patient with an anterior maxillectomy defect. J Prosthet Dent 2023:S0022-3913(23)00285-8. [PMID: 37277237 DOI: 10.1016/j.prosdent.2023.04.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/05/2023] [Accepted: 04/05/2023] [Indexed: 06/07/2023]
Abstract
An existing interim obturator can be reproduced as the definitive one using digital technology, with benefits for a patient with a maxillectomy. By digitally scanning the oral condition and the existing interim obturator, a definitive obturator, including a computer-aided designed and computer-aided manufactured metal framework, was fabricated and delivered to a patient with an anterior maxillectomy defect by following a combined digital and conventional workflow. This technique can hasten the adaptation of the patient to the new obturator and ensure a more comfortable and safer clinical procedure.
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Affiliation(s)
- Islam E Ali
- Doctoral student, Department of Advanced Prosthodontics, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan; and Assistant Lecturer, Department of Prosthodontics, Faculty of Dentistry, Mansoura University, Mansoura, Egypt
| | - Kouichi Enomoto
- Certified Dental Technician, Dental Laboratory, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yuka Sumita
- Adjunct Lecturer, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Professor, Division of General Dentistry, The Nippon Dental University Hospital, Tokyo, Japan.
| | - Noriyuki Wakabayashi
- Professor, Department of Advanced Prosthodontics, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
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Celik HK, Koc S, Kustarci A, Caglayan N, Rennie AE. The state of additive manufacturing in dental research - A systematic scoping review of 2012-2022. Heliyon 2023; 9:e17462. [PMID: 37484349 PMCID: PMC10361388 DOI: 10.1016/j.heliyon.2023.e17462] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 06/08/2023] [Accepted: 06/19/2023] [Indexed: 07/25/2023] Open
Abstract
Background/purpose Additive manufacturing (AM), also known as 3D printing, has the potential to transform the industry. While there have been advancements in using AM for dental restorations, there is still a need for further research to develop functional biomedical and dental materials. It's crucial to understand the current status of AM technology and research trends to advance dental research in this field. The aim of this study is to reveal the current status of international scientific publications in the field of dental research related to AM technologies. Materials and methods In this study, a systematic scoping review was conducted using appropriate keywords within the scope of international scientific publishing databases (PubMed and Web of Science). The review included related clinical and laboratory research, including both human and animal studies, case reports, review articles, and questionnaire studies. A total of 187 research studies were evaluated for quantitative synthesis in this review. Results The findings highlighted a rising trend in research numbers over the years (From 2012 to 2022). The most publications were produced in 2020 and 2021, with annual percentage increases of 25.7% and 26.2%, respectively. The majority of AM-related publications in dentistry research originate from Korea. The pioneer dental sub-fields with the ost publications in its category are prosthodontics and implantology, respectively. Conclusion The final review result clearly stated an expectation for the future that the research in dentistry would concentrate on AM technologies in order to increase the new product and process development in dental materials, tools, implants and new generation modelling strategy related to AM. The results of this work can be used as indicators of trends related to AM research in dentistry and/or as prospects for future publication expectations in this field.
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Affiliation(s)
- H. Kursat Celik
- Dept. of Agr. Machinery and Technology Engineering, Akdeniz University, Antalya, 07070, Turkey
| | - Simay Koc
- Dept. of Endodontics, Fac. of Dentistry, Akdeniz University, Antalya, Turkey
| | - Alper Kustarci
- Dept. of Endodontics, Fac. of Dentistry, Akdeniz University, Antalya, Turkey
| | - Nuri Caglayan
- Dept. of Mechatronics, Fac. of Engineering, Akdeniz University, Antalya, Turkey
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Implementation of a Full Digital Workflow by 3D Printing Intraoral Splints Used in Dental Education: An Exploratory Observational Study with Respect to Students' Experiences. Dent J (Basel) 2022; 11:dj11010005. [PMID: 36661542 PMCID: PMC9858622 DOI: 10.3390/dj11010005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/11/2022] [Accepted: 12/16/2022] [Indexed: 12/28/2022] Open
Abstract
Fully digital workflows gained acceptance in dental practice and thereby are of interest for undergraduate education. An exploratory clinical observation was designed to track the implementation of such a workflow with novice digital users in order to describe its feasibility, time investment, and pitfalls. METHODS Students were invited to provide feedback for their experiences with a training module that consisted of the following: intraoral scanning, computer-aided design (CAD), manual finishing, and insertion of a 3D-printed bite splint for the lower jaw. RESULTS A total of 82 fourth-year students participated in the module. The average time required to perform an intraoral scan was 17 m 5 s, and all students were able to design a splint with an average time of 2 h 38 m. Students who indicated prior experience with CAD seem to outperform inexperienced students in both CAD task completion and intraoral scanning. The initial fit was reported as clinically acceptable by 68.5% of the participants, while 79% rated the workflow as very good to satisfactory and indicated that the training was helpful for dental practice. CONCLUSIONS The implementation of a digital workflow in undergraduate dental education is feasible and has acceptable clinical results. However, CAD is time-intensive, and the experience can be challenging.
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Obturator Manufacturing for Oronasal Fistula after Cleft Palate Repair: A Review from Handicraft to the Application of Digital Techniques. J Funct Biomater 2022; 13:jfb13040251. [PMID: 36412892 PMCID: PMC9680338 DOI: 10.3390/jfb13040251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/09/2022] [Accepted: 11/15/2022] [Indexed: 11/19/2022] Open
Abstract
An oronasal fistula (ONF) is an abnormal structure between the oral and nasal cavities, which is a common complication of cleft palate repair due to the failure of wound healing. When some patients with ONF are unsuitable for secondary surgical repair, the obturator treatment becomes a potential method. The objectives of the obturator treatment should be summarized as filling the ONF comfortably and cosmetically restoring the dentition with partial function. The anatomy of patients with cleft palate is complex, which may lead to a more complex structure of the ONF. Thus, the manufacturing process of the obturator for these patients is more difficult. For performing the design and fabrication process rapidly and precisely, digital techniques can help, but limitations still exist. In this review, literature searches were conducted through Medline via PubMed, Wiley Online Library, Science Direct, and Web of Science, and 122 articles were selected. The purpose of this review was to introduce the development of the obturator for treating patients with ONF after cleft palate repair, from the initial achievement of the obstruction of the ONF to later problems such as fixation, velopharyngeal insufficiency, and infection, as well as the application of digital technologies in obturator manufacturing.
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Xu Y, Huang H, Wu M, Tian Y, Wan Q, Shi B, Hu T, Spintzyk S. Rapid Additive Manufacturing of a Superlight Obturator for Large Oronasal Fistula in Pediatric Patient. Laryngoscope 2022; 133:1507-1512. [PMID: 36098478 DOI: 10.1002/lary.30352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 07/13/2022] [Accepted: 08/02/2022] [Indexed: 11/08/2022]
Abstract
This study developed a novel digital workflow to fabricate a 3D printed hollow obturator for the prosthetic reconstruction of palatal fistula. It will provide cleft surgeons and therapists a choice for treating children with large palatal fistula before the appropriate age for surgical reconstruction. Laryngoscope, 2022.
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Affiliation(s)
- Yichen Xu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Oral Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hanyao Huang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Min Wu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yuting Tian
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Preventive Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qianbin Wan
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Oral Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Bing Shi
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Tao Hu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Preventive Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Sebastian Spintzyk
- ADMiRE Lab-Additive Manufacturing, Intelligent Robotics, Sensors and Engineering, School of Engineering and IT, Carinthia University of Applied Sciences, Villach, Austria
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Farook TH, Jamayet NB, Asif JA, Din AS, Mahyuddin MN, Alam MK. Development and virtual validation of a novel digital workflow to rehabilitate palatal defects by using smartphone-integrated stereophotogrammetry (SPINS). Sci Rep 2021; 11:8469. [PMID: 33875672 PMCID: PMC8055911 DOI: 10.1038/s41598-021-87240-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 03/25/2021] [Indexed: 12/16/2022] Open
Abstract
Palatal defects are rehabilitated by fabricating maxillofacial prostheses called obturators. The treatment incorporates taking deviously unpredictable impressions to facsimile the palatal defects into plaster casts for obturator fabrication in the dental laboratory. The casts are then digitally stored using expensive hardware to prevent physical damage or data loss and, when required, future obturators are digitally designed, and 3D printed. Our objective was to construct and validate an economic in-house smartphone-integrated stereophotogrammetry (SPINS) 3D scanner and to evaluate its accuracy in designing prosthetics using open source/free (OS/F) digital pipeline. Palatal defect models were scanned using SPINS and its accuracy was compared against the standard laser scanner for virtual area and volumetric parameters. SPINS derived 3D models were then used to design obturators by using (OS/F) software. The resultant obturators were virtually compared against standard medical software designs. There were no significant differences in any of the virtual parameters when evaluating the accuracy of both SPINS, as well as OS/F derived obturators. However, limitations in the design process resulted in minimal dissimilarities. With further improvements, SPINS based prosthetic rehabilitation could create a viable, low cost method for rural and developing health services to embrace maxillofacial record keeping and digitised prosthetic rehabilitation.
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Affiliation(s)
- Taseef Hasan Farook
- School of Dental Sciences, Health Campus, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Nafij Bin Jamayet
- Division of Clinical Dentistry (Prosthodontics), School of Dentistry, International Medical University, Jalan Jalil Perkasa-19, Bukit Jalil, 57000, Kuala Lumpur, Malaysia.
| | - Jawaad Ahmed Asif
- Consultant Oral and Maxillofacial Surgeon, Prince Mutaib Bin Abdul Aziz Hospital, Ministry of Health, Al-Jouf, Kingdom of Saudi Arabia
| | - Abdul Sattar Din
- School of Electrical and Electronic Engineering, Universiti Sains Malaysia, Penang, Malaysia
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