J Korean Acad Prosthodont.  2015 Jan;53(1):19-25. 10.4047/jkap.2015.53.1.19.

The treatment of an edentulous patient with DENTCA(TM) CAD/CAM Denture

• Park JH
• Cho IH
• Shin SY
• Choi YS

• KMID: 2057203
• DOI: http://doi.org/10.4047/jkap.2015.53.1.19

Abstract

Nowadays, CAD/CAM is broadly used in dentistry for inlays, crowns, implant abutments and its spectrum is expanding to complete dentures. Utilizing CAD/CAM to fabricate complete dentures is expected to decrease chair time and the number of visits, thus decreasing total fabrication time, expenses and errors caused during fabrication processes. One of the systems using CAD/CAM, DENTCA(TM) CAD/CAM denture (DENTCA Inc. Los Angeles, USA) scans edentulous impressions, designs dentures digitally, fabricates try-in dentures by 3D printing and converts them into final dentures. Patients can wear final dentures after only 2 - 3 visits with satisfying adaptation. This case report introduces a 71-year-old male patient who visited to consult remaking of existing old dentures. Residual teeth with bad prognosis and root remnants were extracted and the patient used reformed existing mandibular denture for 2 months. And then DENTCA system started. One-step border molding was done using conventional tray of adequate size provided by DENTCA system and wash impression was taken. Gothic arch tracing was completed based on the vertical dimension of existing dentures. Both maxillary and mandibular trays were placed to the resultant centric relation and bite registration was taken. Then DENTCA scanned the bite registration, arranged the teeth, completed the festooning and fabricated the try-in dentures by 3D printing. The try-in dentures were positioned, occlusal plane and occlusal relations were evaluated. The try-in dentures were converted to final dentures. To create bilateral balanced occlusion, occlusal adjustment was done after clinical remounting using facebow transfer. The result was satisfactory and it was confirmed by patient and operator.

Keyword

Complete denture; CAD/CAM

MeSH Terms

Aged
Centric Relation
Crowns
Dental Occlusion
Dentistry
Denture, Complete
Dentures*
Fungi
Humans
Inlays
Jaw Relation Record
Male
Occlusal Adjustment
Prognosis
Tooth
Vertical Dimension

Figure

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  Fig. 1. 4 sizes of DENTCA tray.

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  Fig. 2. (A) Taking first impression, (B) Taking Wash impression.

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  Fig. 3. (A) Separating the posterior part of upper tray, (B) Separating the posterior parts of lower tray.

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  Fig. 4. Center pin in the lower tray.

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  Fig. 5. Vertical dimension determination with the vertical gauge.

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  Fig. 6. (A) EZ-tracer™, (B) Gothic arch tracing, (C) Bite registration, (D) Jaw relation record.

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  Fig. 7. Determination of upper lip length.

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  Fig. 8. (A) Impression scanning, (B) Arch detection (C) Teeth setup, (D) Festooning.

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  Fig. 9. (A) Try-in denture, (B) Checking the occlusal plane.

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  Fig. 10. (A) Facebow transfer for clinical remounting, (B) Frontal view of final dentures, (C) Occlusal view of maxillary denture (D) Occlusal view of mandibular denture.

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