Abstract
This clinical report describes how a hollow obturator prosthesis was designed and
fabricated for an 82-year-old partially edentulous patient with a large palatal defect.
Computer-aided design (CAD) was used to design, articulate, and align the mandibular
denture with the obturator prosthesis. The prosthesis was printed, adjusted chairside,
rescanned, and made hollow by using a CAD software program. The prosthesis was printed
in resin with a dental 3D printer. Quantitative evaluations of clinical (prosthesis
dimensions, rest, and occlusal vertical dimensions) and virtual (surface area, volume,
weight, interpoint mismatches, spatial overlap) parameters found that the 3D-printed
prosthesis required an additional 5% chairside modification. The greatest differences
in volume (24.7% less) and weight (22.2% less) were observed when the modified obturator
bulb was made hollow via CAD. Hollowing the bulb, therefore, reduced the spatial overlap
in volume by 16.8%.
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References
- Evaluation of the differences between conventional and digitally developed models used for prosthetic rehabilitation in a case of untreated palatal cleft.Cleft Palate Craniofac J. 2021; 58: 386-390
- Development and virtual validation of a novel digital workflow to rehabilitate palatal defects by using smartphone-integrated stereophotogrammetry (SPINS).Sci Rep. 2021; 11: 8469
- Method to control tongue position and open source image segmentation for cone-beam computed tomography of patients with large palatal defect to facilitate digital obturator design.J Oral Maxillofac Surg Med Pathol. 2020; 32: 61-64
- Percentage of mesh reduction appropriate for designing digital obturator prostheses on personal computers.J Prosthet Dent. 2022; 128: 219-224
- Comparison of weight reduction in different designs of solid and hollow obturator prostheses.J Prosthet Dent. 1989; 62: 214-217
- Computer-assisted technologies used in oral rehabilitation and the clinical documentation of alleged advantages–a systematic review.J Oral Rehabil. 2017; 44: 261-290
- A systematic review of the computerized tools & digital techniques applied to fabricate nasal, auricular, orbital and ocular prostheses for facial defect rehabilitation.J Stomatol Oral Maxillofac Surg. 2020; 121: 268-277
- A review of prostheses fabricated for rehabilitation of nasal septal defect using digital workflow.Otorinolaringologia. 2020; 70: 57-60
- A virtual analysis of the precision and accuracy of 3-dimensional ear casts generated from smartphone camera images.J Prosthet Dent. 2022; 128: 830-836
- A generation process for a three-dimensional digital cast that simulates the oral cavity by using an existing maxillary obturator.J Prosthet Dent. 2020; 123: 531-534
- Rehabilitation of a maxillectomy patient using intraoral scanning impression technology and a computer-aided design/computer-aided manufacturing fabricated obturator prosthesis: a clinical report.J Indian Prosthodont Soc. 2018; 18: 282-287
- Optimization of prosthodontic computer-aided designed models: a virtual evaluation of mesh quality reduction using open source software.J Prosthodont. 2021; 30: 420-429
- Novel method of fabricating individual trays for maxillectomy patients by computer-aided design and rapid prototyping.J Prosthodont. 2015; 24: 115-120
- Creating a digitized database of maxillofacial prostheses (obturators): a pilot study.J Adv Prosthodont. 2016; 8: 219-223
- Generation and evaluation of 3D digital casts of maxillary defects based on multisource data registration: a pilot clinical study.J Prosthet Dent. 2017; 118: 790-795
- Rehabilitation of maxillectomy defects with obturator prostheses fabricated using computer-aided design and rapid prototyping: a pilot study.Int J Prosthodont. 2014; 27: 480-486
- Digital design and fabrication of surgical obturators based only on preoperative computed tomography data.Int J Prosthodont. 2017; 30: 111-112
- Fabrication of a 3D printing definitive obturator prosthesis: a clinical report.Acta Stomatol Croat. 2017; 51: 53-59
- Fabrication of a 3D-printed interim obturator prosthesis: a contemporary approach.J Prosthet Dent. 2019; 121: 960-963
- The use of cone beam computed tomography and three dimensional printing technology in the restoration of a maxillectomy patient using a dental implant retained obturator.J Indian Prosthodont Soc. 2017; 17: 406-411
- Three-dimensional printed definitive cast for a silicone obturator prosthesis: a clinical report.J Prosthet Dent. 2019; 121: 353-357
- Fabricating an obturator using rapid prototyping to design the framework: a case report.Int J Prosthodont. 2014; 27: 439-441
- Implant-prosthetic rehabilitation of hemimaxillectomy defects with CAD/CAM suprastructures.J Craniomaxillofac Surg. 2016; 44: 1812-1818
- Fabricating a maxillary obturator using an intraoral digital impression: a case history report.Int J Prosthodont. 2017; 30: 266-268
- Obturator fabrication incorporating computer-aided design and 3-dimensional printing technology: a clinical report.J Prosthet Dent. 2019; 121: 694-697
- Digital evaluation of dimensional accuracy and intimacy of fit of single-piece closed hollow bulb obturators fabricated by CAD/CAM additive manufacturing.Alex Dent J. 2020; 45: 68-74
- A novel digital workflow to manufacture personalized three-dimensional-printed hollow surgical obturators after maxillectomy.Int J Oral Maxillofac Surg. 2018; 47: 1214-1218
- Digital photography and colour analyses in clinical dentistry- a comprehensive systematic review. International prospective register of systematic reviews.(Available at:)https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42020211418Date accessed: August 26, 2021
Article info
Publication history
Published online: October 08, 2021
Footnotes
This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
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© 2021 by the Editorial Council for the Journal of Prosthetic Dentistry.
