J Korean Acad Prosthodont.  2015 Apr;53(2):150-156. 10.4047/jkap.2015.53.2.150.

Oral rehabilitation with magnetic overdentures for an old patient with complex systemic diseases

• Ko E
• Ahn S
• Lee S
• Park S
• Lee RS

• KMID: 2195398
• DOI: http://doi.org/10.4047/jkap.2015.53.2.150

Abstract

As dental implant treatment becomes popular for both partial and complete edentulous patients, old people with complex systemic diseases also tend to prefer implant-assisted-overdenture or implant-supported-fixed prostheses to conventional complete denture. In this case, 77-year-old female who was on medication for hypertension and osteoporosis and paralyzed on right side due to stroke visited for implant-assisted-overdenture on lower jaw. After oral and radiographic examination, root-assisted magnet overdenture on upper jaw and implant-assisted magnet overdenture on lower jaw are planned. Consequently, overdentures using self-adjusting magnetic attachment(SA) system on both jaws resulted in recovering satisfying function and retention, which is enable to insert and remove with only one hand.

Keyword

Systemic diseases; Stroke; Osteoporosis; Overdenture; Magnet

MeSH Terms

Aged
Dental Implants
Denture, Complete
Denture, Overlay*
Female
Hand
Humans
Hypertension
Jaw
Osteoporosis
Prostheses and Implants
Rehabilitation*
Stroke
Dental Implants

Figure

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  Fig. 1. Panoramic radiograph on first visit.

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  Fig. 2. Intraoral photos on first visit. (A) Upper, (B) Front, (C) Lower.

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  Fig. 3. (A) Magnetic keepers on implants (Magden; Shinwon Dental., Inc, Seoul, Korea), (B) Root keepers (Magfit-RK; Aichi Steel Corp, Tokai-shi, Japan) on endodontically treated roots and resin build-up in dome shape.

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  Fig. 4. Metal frame with housing for magnet assembly space. (A) Upper, (B) Lower.

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  Fig. 5. Mounting on articulator, showing severe alveolar bone resorption and asymmetry.

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  Fig. 6. Wax-denture try-in.

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  Fig. 7. Radiographs on 3 months after implant placement and extraction. (A) Endodontically treated roots with Root Keepers (Magfit-RK; Aichi Steel Corp, Tokai-shi, Japan) on upper jaw, (B, C) Implants (Magden; Shinwon Dental., Inc, Seoul, Korea) with magnetic keepers on lower jaw.

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  Fig. 8. Final dentures with magnet assemblies. (A) Upper denture, (B) Lower denture.

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  Fig. 9. A patient was satisfied with both dentures with function and acceptable retention even when wide opening. (A) smiling, (B) wide opening.

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  Fig.10. Radiographs on 5 months after final prosthesis delivery. (A) Resin coping was built up again due to dental caries on residual roots. PDL space widening on #12 was reduced. (B, C) Implants are intact.

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  Fig. 11. Mechanics of self-adjusting magnetic attachment (Magfit-SX; Aichi Steel Corp, Tokai-shi, Japan) (A) Time of insertion. Vertical movement allowance of up to 0.4 mm, (B) In vertical dimension, (C) Rotation up to 8 degrees.13

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