Digital Relief of the Mental Foramen for a CAD/CAM‐Fabricated Mandibular Denture

Ohkubo, Chikahiro; Park, Eun Jin; Kim, Tae Hyung; Kurtz, Kenneth S.

doi:10.1111/jopr.12476

Cited by 12 publications

(3 citation statements)

References 9 publications

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“… 22,28 However, the in vitro outcomes cannot be easily interpreted to confirm the adequacy of IOS as the final impression for all scenarios of removable denture fabrication. Further, the IOS systems can register the soft tissue only in their mucostatic state, which leaves the implementation of relief and pressure to the later stage of the denture design 37 . Potentially, this might lead to more denture post‐insertion sore spots and adjustments.…”

Section: Discussionmentioning

confidence: 99%

Accuracy of Intraoral Scanners for Recording the Denture Bearing Areas: A Systematic Review

Rasaie

Abduo

Hashemi

2021

Journal of Prosthodontics

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Purpose To systematically review clinical and laboratory studies that investigated the accuracy of intraoral scanners in recording denture bearing areas. Materials and methods Electronic and manual searches were conducted to identify all the available clinical and laboratory studies reporting the accuracy of digital impressions for recording denture related soft tissues. After the application of predetermined inclusion and exclusion criteria, the final list of articles was reviewed to meet the objective of this study. Results The inclusion criteria were met by 18 studies out of which 8 were clinical and the rest were laboratory investigations. The eligible studies assessed the accuracy of intraoral scanners in recording both the denture supporting structures and the peripheral mobile tissues. The accuracy results were different among the various intraoral scanners. Likewise, the effect of several influencing factors, such as artificial markers, scanner head size, scanning strategy, and the operator's experience, were evaluated. Conclusion While the accuracy of intraoral scanners was comparable to the conventional techniques in recording bony structures with attached mucosa, they were not capable of accurately registering the mobile tissues. In addition, factors such as presence of a marker, larger scanner head size and specific scanning techniques appeared to improve the accuracy of the digital impression.

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Section: Discussionmentioning

confidence: 99%

Accuracy of Intraoral Scanners for Recording the Denture Bearing Areas: A Systematic Review

Rasaie

Abduo

Hashemi

2021

Journal of Prosthodontics

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“…However, relief and pressure are possible after data digitalization. Okubo et al reported the CAD/CAM fabrication of a mandibular complete denture in which digital relief of the mental foramen was performed [36]. In the partial edentulous arch, in order to compensate for the difference in the amount of tissue displacement between the residual teeth and the residual mucous membrane, digital pressurization of the acquired residual mucous membrane data is required.…”

Section: Discussionmentioning

confidence: 99%

Applying intraoral scanner to residual ridge in edentulous regions: in vitro evaluation of inter-operator validity to confirm trueness

et al. 2019

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BackgroundThe purpose of this study was to investigate the trueness of intraoral scanning of residual ridge in edentulous regions during in vitro evaluation of inter-operator validity.MethodsBoth edentulous maxillary and partially edentulous mandibular models were selected as a simulation model. As reference data, scanning of two models was performed using a dental laboratory scanner (D900, 3Shape A/S). Five dentists used an intraoral scanner (TRIOS 2, 3Shape A/S) five times to capture intraoral scanner data, and the “zig-zag” scanning technique was used. They did not have experience with using intraoral scanners in clinical treatment. The intraoral scanner data was overlapped with the reference data (Dental System, 3Shape A/S). Regarding differences that occurred between the reference and intraoral scanner data, the vertical maximum distance of the difference and the integral value obtained by integrating the total distance were analyzed.ResultsIn terms of the maximum distances of the difference on the maxillary model, the means of five operators were as follows: premolar region, 0.30 mm; molar region, 0.18 mm; and midline region, 0.18 mm. The integral values were as follows: premolar region, 4.17 mm2; molar region, 6.82 mm2; and midline region, 4.70 mm2. Significant inter-operator differences were observed with regard to the integral values of the distance in the premolar and midline regions and with regard to the maximum distance in the premolar region, respectively. The maximum distances of the difference in the free end saddles on mandibular model were as follows: right side, 0.05 mm; and left side, 0.08 mm. The areas were as follows: right side, 0.78 mm2; and left side, 1.60 mm2. No significant inter-operator differences were observed in either region.ConclusionsThe present study demonstrated satisfactory trueness of intraoral scanning of the residual ridge in edentulous regions during in vitro evaluation of inter-operator validity.

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“…The first two companies to commercialize CAD/CAM dentures were Avadent and Dentca, with each taking a different approach to fabrication, milling, and 3D printing. Their processes and applications have been reviewed and described in the literature . The popularity and interest in CAD/CAM complete dentures is increasing.…”

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confidence: 99%

Comparison of Fit of Dentures Fabricated by Traditional Techniques Versus CAD/CAM Technology

McLaughlin

Ramos

Dickinson³

2017

Journal of Prosthodontics

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Digital Relief of the Mental Foramen for a CAD/CAM‐Fabricated Mandibular Denture

Cited by 12 publications

References 9 publications

Accuracy of Intraoral Scanners for Recording the Denture Bearing Areas: A Systematic Review

Accuracy of Intraoral Scanners for Recording the Denture Bearing Areas: A Systematic Review

Applying intraoral scanner to residual ridge in edentulous regions: in vitro evaluation of inter-operator validity to confirm trueness

Comparison of Fit of Dentures Fabricated by Traditional Techniques Versus CAD/CAM Technology

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