A Digital Technique to Replicate Edentulous Arches with Functional Borders and Accurate Maxillomandibular Relationship for Digital Complete Denture

Mai, Hang‐Nga; Lee, Du‐Hyeong

doi:10.1111/jopr.13154

Cited by 20 publications

(15 citation statements)

References 20 publications

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“…Moreover, this method allows the digital model of the edentulous ridge to be directly generated by reverting the mesh image of the impression. Thus, several possible errors associated with the stone cast fabrication and intraoral scanning can be eliminated 11,27,28 …”

Section: Discussionmentioning

confidence: 99%

“…For the LP group, the same procedure as that performed for the SP group was performed with large gutta‐percha column markers (3.0 mm in diameter, 2.0 mm in height) (Fig 3B). In the ES group, the image matching procedure was based on the protocol described by Mai and Lee 11 . The base template was first relined using a radiopaque impression material (Permlastic regular; Kerr, Romulus, MI) on the study model (Fig 3C).…”

Section: Methodsmentioning

confidence: 99%

“…Accordingly, the artificial markers supply the congruent area for image matching and enable the merging of the optical scan and radiographic images in the fully edentulous arch 10 . Alternatively, a new matching method based on the application of a radiopaque impression material on a resin base template was introduced 6,11 . The method includes the relining of the intaglio surface of the base template using a radiopaque impression material, and after optical scanning and CBCT taking, the whole surface of impression material is used for image matching.…”

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confidence: 99%

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Comparison of the Accuracy of Image Registration Methods for Merging Optical Scan and Radiographic Data in Edentulous Jaws

Woo

Mai

Lee

2020

Journal of Prosthodontics

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Purpose: The image registration of optical scans to radiographic images is essential for performing computer-guided implant surgery. This study aimed to evaluate the effect of different image matching conditions on the accuracy of image registration for computer-guided implant surgery in completely edentulous jaws. Materials and Methods: The optical scan image of a completely edentulous study model was registered to the respective cone-beam computed tomography data using three different image matching conditions: small point (SP), large point (LP), and entire surface (ES). For the SP and LP groups, gutta-percha markers (1.0 and 3.0 mm in diameter) were attached to a base template, and a radiopaque impression material was relined on the intaglio surface of template in the ES group. Image registration was performed by 20 operators in the images obtained from each group at an interval of 2 weeks (n = 20 in each group), and the registration accuracy was assessed by calculating the aligned position of the edentulous arch image. One-way analysis of variance with Tukey post hoc tests was used to compare the results among the groups (α = 0.05). Results: The mean registration error was significantly larger in the SP group (0.52 ± 0.19 mm) than in the LP group (0.29 ± 0.08 mm) and ES group (0.27 ±0.06 mm) (F = 24.689, p < 0.001). No difference was found between the LP and ES groups. The image matching discrepancy was more homogeneously distributed on the arch in the ES group than in the other groups. Conclusion: The accuracy of image registration is affected by the size of the congruent area shown in the optical scan and radiographic images. The entire surface-based matching method is more accurate as compared to the small point-based matching method in the image registration for implant planning in full edentulous jaws.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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Comparison of the Accuracy of Image Registration Methods for Merging Optical Scan and Radiographic Data in Edentulous Jaws

Woo

Mai

Lee

2020

Journal of Prosthodontics

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“…It is twovisit structure and industrial by Amann Girrbach (AG), Germany. It uses subtractive manufacturing for the construction of upper or lower CDs [13, [23][24].…”

Section: Ceramill Full Denture Systemmentioning

confidence: 99%

Computer Engineering Complete Dentures Workflow: Systematic Techniques Review

Moaleem

Al-layl

Alhomood

et al. 2021

JPRI

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Background: The progress in the use of computer-aided design/computer aided manufacturing (CAD/CAM) to fabricat removable prosthodontic prostheses in dental clinics has been exponential. Commercially existing CAD/CAM denture techniques grow every year with increasing benefits to dentists and patients. Study Design: Systematic review. Aims: This review assessed and evaluated the different clinical production protocols of presently accessible CAD/CAM denture systems that offer decision support for dental practitioners. Methodology: Data for the current object were collected by surveys from different companies manufacturing the Computer Engineering Complete Denture (CECDs). All related subjects published at the last 10 years were collected and included in this review. Techniques were arranged in alphabetical order, as follows. AvaDent Digital Dentures (Global Dental Science), Baltic Denture Creator System (Merz Dental GmbH), and Ceramill Full Denture System (Amann Girrbach AG) can manufacture denture fabrication in three visits, including a try-in step. DENTCA Digital Dentures (Whole You Nexteeth, Inc) can also perform this in three visits. The Wieland Digital Denture (Ivoclar Vivadent, Inc) can manufacture in four dental appointments. Recently developed VITA VIONIC Digital System (VITA Zahnfabrik, Bad Säckingen, Germany) can perform two-step CECD manufacturing. Results: Most of the systems involved subtractive manufacturing for the fabrication of their dentures and only closed systems. However, Baltic Denture System and VITA VIONIC material types are an open structure that allow users to choose among different handling protocols. It can be shared with several unclosed digital scanner, CAD software options, and milling machines. Conclusions: The six existing CECD fabrication systems offer many advantages. The decision on which technique to use may be contingent on the dentist’s prosthodontic expertise, patient output amount, and requirements concerning denture individualization.

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“…Recent reports demonstrated different techniques to manufacture complete dentures with a hybrid approach combining digital and conventional procedures 5,18–21 . 3D printing technique is also being used to aid in the complete denture fabrication 22,23 .…”

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confidence: 99%

Digital Immediate Complete Denture for a Patient with Rhabdomyosarcoma: A Clinical Report

Mendonça

Edwards

Mayers³

et al. 2021

Journal of Prosthodontics

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Fabricating an immediate complete denture can be very challenging in some clinical situations. This clinical report describes a digital workflow to fabricate a printed maxillary immediate complete denture for a patient with a severely compromised maxilla. Digital data obtained by using an intraoral scanner was utilized to reconstruct the three‐dimensional (3D) image of the jaws at the desirable vertical dimension of occlusion. After performing the virtual teeth extraction and alveoloplasty, the denture base and teeth were designed. The resulting data were exported to a 3D printer for denture fabrication and the 3D printed (additively manufactured) denture was successfully inserted immediately after the surgery. After initial healing and confirmation of good retention and function, a new printed denture was fabricated by digitally duplicating the relined denture maintaining the same teeth positions but adjusting the base to a new intraoral scan of the healed ridge.

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A Digital Technique to Replicate Edentulous Arches with Functional Borders and Accurate Maxillomandibular Relationship for Digital Complete Denture

Cited by 20 publications

References 20 publications

Comparison of the Accuracy of Image Registration Methods for Merging Optical Scan and Radiographic Data in Edentulous Jaws

Comparison of the Accuracy of Image Registration Methods for Merging Optical Scan and Radiographic Data in Edentulous Jaws

Computer Engineering Complete Dentures Workflow: Systematic Techniques Review

Digital Immediate Complete Denture for a Patient with Rhabdomyosarcoma: A Clinical Report

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