J Korean Acad Prosthodont.  2019 Jul;57(3):296-303. 10.4047/jkap.2019.57.3.296.

Fabrication of complete dentures by conventional method and CAD/CAM milling: A case report

• Jung Y
• Lee J
• Hong SJ
• Noh K
• Kim HS
• Pae A

• KMID: 2453785
• DOI: http://doi.org/10.4047/jkap.2019.57.3.296

Abstract

In edentulous patient, not only mastication and pronunciation but also esthetics are compromised. By restoring an edentulous patient with complete dentures, masticatory function and esthetics can be rehabilitated. The advantages of the dentures using CAD/CAM are that they can be reconstructed ubiquitously with stored data, and the strength and density of CAD/CAM material are clinically acceptable. In this clinical report, interocclusal record was taken in a conventional manner and then two lab processing procedures were performed: conventional method and CAD/CAM method. Two types of processing procedures were compared and evaluated. Fair clinical results were obtained in both ways, satisfying the patient.

Keyword

Complete denture; CAD/CAM; Denture base; Interocclusal record; Esthetics

MeSH Terms

Denture Bases
Denture, Complete*
Dentures
Esthetics
Humans
Mastication
Methods*

Figure

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  Fig. 1 Pre-operative extraoral photographs. (A) Frontal view without denture, (B) Frontal view with denture, (C) Lateral view without denture, (D) Lateral view with denture.

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  Fig. 2 Intraoral photographs showing inflammatory tissue. (A) Maxilla, (B) Mandible.

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  Fig. 3 Old denture analysis. (A) Frontal view with denture, (B) Lateral view with denture, (C, D) Comparison of old denture with diagnostic casts.

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  Fig. 4 Patient satisfaction survey (OHIP-14) for existing dentures.

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  Fig. 5 Final impression taking (C, D) with individual tray (A, B) and fabrication of definitive cast (E, F).

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  Fig. 6 Definitive denture tooth setup.

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  Fig. 7 Definitive conventional complete denture. (A) Frontal view, (B, C) Lateral view.

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  Fig. 8 Scanning definitive casts (A, B), wax rim (C, D), bite rim (E), and align scanned casts using Exocad Software (F).

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  Fig. 9 Design of complete denture using Exocad program. (A) Anterior teeth setup using upper wax rim, (B) Whole denture teeth setup, (C) Artificial gum formation.

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  Fig. 10 Fabricating virtual denture base using Meshmixer program. (A) Upper teeth STL file, (B) give offset to upper teeth, (C) Subtract offset upper teeth from upper denture STL file, (D) Upper denture base having cement gap.

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  Fig. 11 Design of accurate denture margin using Meshmixer program. (A) definitive cast STL file, (B) inverted cast STL file, (C) Upper denture base having cement gap, (D) Superimpose upper inverted cast and upper denture base STL file, (E) Connect margin of two STL files.

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  Fig. 12 Definitive CAD/CAM complete denture. (A) Frontal view, (B, C) Lateral view.

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