Journal List > J Korean Acad Prosthodont > v.56(2) > 1034968

Jung, Ma, Yang, Park, Lim, and Yun: Fabrication of complete denture using Centric tray and closed mouth technique for edentulous patient

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. (J Korean Acad Prosthodont 2018;56:120-5)

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Fig. 1.
Initial panoramic radiograph.
jkap-56-120f1.tif
Fig. 2.
Initial intraoral photographs. (A) Frontal view, (B) Maxillary occlusal view, (C) Mandibular occlusal view.
jkap-56-120f2.tif
Fig. 3.
Intraoral photographs after extraction, epulis fissuratum removal surgery. (A) Maxillary occlusal view, (B) Mandibular occlusal view.
jkap-56-120f3.tif
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.
jkap-56-120f4.tif
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.
jkap-56-120f5.tif
Fig. 6.
Final impression taking using closed mouth technique.
jkap-56-120f6.tif
Fig. 7.
Jaw relation recording. (A) Centric relation recording using gothic arch tracing, (B) Vertical dimension determination.
jkap-56-120f7.tif
Fig. 8.
Facebow transfer.
jkap-56-120f8.tif
Fig. 9.
Intraoral photos after placement of definitive complete denture.
jkap-56-120f9.tif
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