J Korean Acad Prosthodont.  2018 Apr;56(2):120-125. 10.4047/jkap.2018.56.2.120.

Fabrication of complete denture using Centric tray and closed mouth technique for edentulous patient

• Jung S
• Ma B
• Yang H
• Park S
• Lim HP
• Yun K

• KMID: 2410115
• DOI: http://doi.org/10.4047/jkap.2018.56.2.120

Abstract

Conventional denture impression techniques have limitations for edentulous patients with severe alveolar bone resorption and can cause problems from excessive border extension. Especially when a patient has movable tissue it is difficult to make accurate impression, thus might interrupt stable seating of complete denture. Fabrication of complete denture using closed mouth technique for edentulous patient with severe ridge resorption is thought to provide better stability and retention. In this case, an 86-year-old patient had both edentulous jaws with epulis fissuratum on maxillary anterior ridge and severe mandibular ridge resorption. Thus, tentative vertical dimension was determined by using Centric tray and individual tray attached with gothic arch tracer was fabricated. Complete denture was fabricated using closed mouth technique and the patient was satisfied with better stability and retention of the complete denture.

Keyword

Complete denture; Closed mouth technique; Severe alveolar bone resorption

MeSH Terms

Aged, 80 and over
Bone Resorption
Denture, Complete*
Dentures
Gingival Diseases
Humans
Jaw, Edentulous
Mouth*
Vertical Dimension

Figure

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  Fig. 1. Initial panoramic radiograph.

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  Fig. 2. Initial intraoral photographs. (A) Frontal view, (B) Maxillary occlusal view, (C) Mandibular occlusal view.

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  Fig. 3. Intraoral photographs after extraction, epulis fissuratum removal surgery. (A) Maxillary occlusal view, (B) Mandibular occlusal view.

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  Fig. 4. Preliminary vertical dimension taking with Centric tray and mounting in semi-adjustable articulator. (A) Preliminary vertical dimension taking at resting position, (B) Centric tray, (C) Preliminary cast mounting.

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  Fig. 5. Fabrication individual tray and Gnathometer M placement. (A) Gnathometer M placement, (B) Bite rim mount application on maxillary individual tray (open tray in anterior region), (C) Bite rim mount application on mandibular individual tray.

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  Fig. 6. Final impression taking using closed mouth technique.

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  Fig. 7. Jaw relation recording. (A) Centric relation recording using gothic arch tracing, (B) Vertical dimension determination.

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  Fig. 8. Facebow transfer.

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  Fig. 9. Intraoral photos after placement of definitive complete denture.

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