Manufacturing of an immediate removable partial denture with an intraoral scanner and CAD-CAM technology: a case report

Virard, François; Venet, Laurent; Richert, Raphaël; Pfeffer, Daniel; Viguié, Gilbert; Bienfait, Alexandre; Farges, Jean‐Christophe; Ducret, Maxime

doi:10.1186/s12903-018-0578-3

Cited by 20 publications

(14 citation statements)

References 20 publications

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“…There are several related studies, such as that by Pooya et al [35], who evaluated the overall accuracy and fit of conventional versus CAD/CAM RPD frameworks based on the results of a STL data analysis, and further evaluated the accuracy and fit of each component of the RPD framework. In a case report, Virard et al [36] proposed an innovative procedure for producing an immediate removable denture, based on the use of three components: an intra-oral scanner, CAD with two different software used sequentially, and CAM with a 5-axis machine. The prosthodontics department at the Peking University Hospital of Stomatology [37] has reported on the case of a removable partial denture that was completely manufactured using CAD/CAM.…”

Section: Discussionmentioning

confidence: 99%

Computer-aided design of polyetheretherketone for application to removable pediatric space maintainers

et al. 2020

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Background: The premature loss of primary teeth is a common problem in pediatric dentistry, resulting in disruption of the arch integrity. Hence, space maintainers (SM) used for maintaining spaces are necessary. However, current methods of making removable space maintainers (RSM) have some limitations. Methods: Digital models of dentition defects were obtained by using a scanning technique coupled with laser medical image reconstruction. The digital RSMs were designed using the 3Shape software. They were manufactured using two methods: polyetheretherketone (PEEK), and conventional methods (20 RSMs per group). For qualitative evaluation, the Likert five-point scale was used by 10 experts to obtain a score for 40 RSMs. The spaces between the tissue surfaces of the RSMs and the models were replaced using silicone, and the maximum and mean distances, as well as the standard deviation, were measured. A three-dimensional variation analysis was used to measure these spaces. The student's t-test and Satterthwaite t-test were used to compare the differences in the spaces for the various materials. Results: The PEEK RSMs were found to fit the models well. In the qualitative assessment, the mean experts' scores for the PEEK and conventional groups were 1.80 ± 0.40 and 1.82 ± 0.40, and there was no significant difference between the two groups (p = 0.875). In the quantitative assessment, the mean spaces for the PEEK digital RSMs and the conventional RSMs were 44.32 ± 1.75 μm, and 137.36 ± 18.63 μm, respectively, and the differences were statistically significant (p < 0.001). In addition, there were significant differences in the maximum space and the standard deviation between the two groups.

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Section: Discussionmentioning

confidence: 99%

Computer-aided design of polyetheretherketone for application to removable pediatric space maintainers

et al. 2020

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“…As for the prosthesis base and artificial teeth, we believe that the conventional method is still superior to the digital one, given some limitations. The teeth when designed by the software even make it possible to change the size and shape, duplicate or mirror existing teeth and perform occlusal adjustment in virtual articulators to promote better alignment with adjacent teeth (Virard, et al, 2018). However, they need to be polished or glued to the base of the prosthesis and in some situations characterized using coloring materials (Hamanaka, Isshi & Takahashi, 2018).…”

Section: Discussionmentioning

confidence: 99%

The computer-aided design and rapid prototyping fabrication of removable partial denture framework for occlusal rehabilitation: clinical report

Carreiro

Pereira

Paz

et al. 2020

RSD

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The objective of this case report was to describe the clinical sequence for occlusal vertical dimension (OVD) recovering with the manufacture of removable partial dentures (RPD) produced by computer-aided design and rapid prototyping. The patient presented to the Dentistry Department of the Federal University of Rio Grande do Norte reporting dissatisfaction with the superior RPD. At clinical investigation, a fracture in the minor connector and support at the region of tooth 15 was observed, in addition to severe OVD loss. In this case, after obtaining correct OVD, four more sessions were necessary for RPD fabrication. In the first appointment, intraoral scanning was performed to generate STL files used for path of insertion determination in the CAD software. The need for a guide plane on tooth 15 was observed, thus a preparation guide was designed and 3Dprinted to aid axial tooth reduction. At the second visit, after mouth preparation, another intraoral scanning was performed to acquire virtual working models. The RPD framework was designed and 3D printed in a castable resin pattern and invested for cobalt-chromium alloy melting. In the third visit, clinical evaluation of the framework and teeth and artificial gingiva colors selection were performed. The articulated models were then 3D printed, enabling pre-fabricated teeth to be assembled and acrylized. On the fourth appointment, RPD was installed and the patient received routine instructions. In this sense, the use of CAD/CAM technologies presented as a valuable tool to enhance restoration of OVD by the manufacturing of RPD.

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“…Out of 103 articles included in this systematic review, 22 were the articles related to digital RPDs delivered to patients, and 15 articles were on clasp-retained RPDs [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33], 7 articles were double-crown retained RPDs [34][35][36][37][38][39][40], and 9 were retrofit crown fabrications [41][42][43][44][45][46][47][48][49]. Table 1 shows the utilization of digital technology in the fabrication of clasp-retained RPDs.…”

Section: Clinical Evidencementioning

confidence: 99%

“…Table 1 shows the utilization of digital technology in the fabrication of clasp-retained RPDs. Digital technology was used in all procedures (full-digital RPD) in four cases [24,25,27,32]. Furthermore, in a single case, a gypsum definitive cast was not made (model-free fabrication) [27].…”

Section: Clinical Evidencementioning

confidence: 99%

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A systematic review of digital removable partial dentures. Part I: Clinical evidence, digital impression, and maxillomandibular relationship record

et al. 2022

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Purpose: This study comprehensively reviewed the current status of digital workflows in fabricating removable partial dentures (RPDs) using evidence from clinical trials and case reports. Study selection: We performed a systematic review of the literature on the materials and fabrication of RPDs using digital technologies published in online databases from 1980 to 2020. We selected eligible articles from the search results, retrieved information on digital RPDs from these, and conducted a qualitative analysis. We report evidence from clinical papers and case reports, digital impression-taking methods, and maxillomandibular relationship (MMR) records. Results: A case report electronically published in 2019 introduced a clasp-retained RPD fabricated via a full-digital workflow without a gypsum definitive cast. Computer-aided design and computer-aided manufacturing of double-crown-retained RPDs with nonmetal materials were described in some case reports. Intraoral scanners were used to obtain digital impressions and MMR records in the fabrication of digital RPDs, which have potential advantages for reducing the number of clinical appointments and simplifying laboratory procedures. Evidence from clinical trials is scarce; a randomized controlled trial reported higher patient satisfaction with digital clasp-retained RPDs than with conventional RPDs. Conclusions: Full-digital RPDs can be fabricated without a gypsum definitive cast. However, the indication for full-digital RPDs is limited to cases with Kennedy Class III/IV partially edentulous arches with several missing teeth. Challenges in digital impression-taking and MMR recording remain to be solved to extend these indications. More evidence from clinical trials is required to evaluate the efficacy and usefulness of digital RPDs.

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Manufacturing of an immediate removable partial denture with an intraoral scanner and CAD-CAM technology: a case report

Cited by 20 publications

References 20 publications

Computer-aided design of polyetheretherketone for application to removable pediatric space maintainers

Computer-aided design of polyetheretherketone for application to removable pediatric space maintainers

The computer-aided design and rapid prototyping fabrication of removable partial denture framework for occlusal rehabilitation: clinical report

A systematic review of digital removable partial dentures. Part I: Clinical evidence, digital impression, and maxillomandibular relationship record

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