Esthetic denture using magnet attachment for a patient with anterior
teeth missing: A case report
Maruo R1)，Imaizumi N1)，Muto R1)，Miyama Y2)，Suzuki Y1),Ohkubo C1)
1)
2)

Depart of Removable Prosthodontics，Tsurumi University School of Dental Medicine
The Dental Technician Training Institute, Tsurumi University School of Dental Medicine

Abstract【Introduction】
The patient was a 62-year-old female with three anterior teeth removed due to odontogenic myxoma
in her mandibular jaw. Her chief concerns were esthetics and a functional prosthetic rehabilitation.
For the missing teeth with a defect of the alveolar bone, a sectional removable partial denture (RPD)
was fabricated using a magnetic attachment.
【Materials and Methods】
The metal base denture was composed of labial and lingual segments to utilize the undercut ofadjacent teeth for the denture retention. The framework of lingual segment was first cast with Co-Cr
alloy and then placed to the master cast. Next, the labial segment framework was cast to completely
fit to the lingual segment. Both segments were connected using a magnetic attachment (PHYSIOMAGNET, NEOMAX). After artificial incisors were arranged on the labial segment framework,denture base resin was poured and polymerized, and the sectional RPD was finally completed.
【Results, Discussion】
Using magnetic attachments, the sectional RPD could be fabricated without a metal clasp, providing
better esthetics and greater function and retention. However, long-term follow-up is necessary forkeeping the connective strength between labial and lingual segments and confirming the cleaning
condition of the joint area.

Introduction
This case report describes the fabrication of a sectional removable partial denture (RPD) using
magnetic attachments for missing anterior teeth and a large bone defect to recover function andesthetics.

Treatment Progress
2016/ June
JulyDecember
2018/ MarchOctober

Initial visit
Surgical removal of a tumor and extraction of #43, #42, and #41
Delivery of the acrylic denture
Start of sectional RPD fabrication
Delivery of sectional RPD

Fig.1 Missing aterio teeth with aveolor bone

Fig.2 Panoramic x-ray

The patient was a 62-year-old female who visited the Tsurumi University School of Dental
Medicine with swelling in the mandibular right anterior teeth region. After the diagnosis of anodontogenic myxoma, the tumor was removed, along with three anterior teeth and the alveolar ridge(Fig.1, 2). Six months after the operation, an acrylic denture with metal clasps was delivered (Fig.3),
and its impression surface was adjusted to the alveolar ridge resorption. One year later, the sectional
RPD was fabricated using a magnetic attachment.

Fig.3 Delivery of the acrylic denture witha clasp

Fig.4 Try in of the RPD framework

Design of sectional removable denture
keepermagnet attachment
undercutdivision
direction
Labial side

Lingual side
division directionconnecting wire
Fig.5 Design structure of the sectional RPD

Fig.6 Connecting two segments withwire to prevent separation

abc

Fig.7 a, b: Sectional RPD (a: labial side, b: lingual side), c: Frontal view after delivery
The metal base denture was composed of labial and lingual segments to utilize the undercut ofadjacent teeth for denture retention. The framework of the lingual segment was first cast with Co-Cr
alloy and then placed on the master model. Next, the labial segment framework was cast tocompletely fit to the lingual segment. Both segments were connected using a magnetic attachment(PHYSIO MAGNET, NEOMAX) and Co-Cr wire (Figs.4-6).
After artificial incisors were arranged on the labial segment framework, denture base resin waspoured and polymerized, and the sectional RPD was finally completed (Fig.7).

Results and Discussion
Esthetic
Mastication
Conversation
Satisfaction level
Denture stability: Previous denture: New denture

Fig.8 Visual analogue scale
Using magnetic attachments, a sectional RPD could be fabricated without a metal clasp. Patientsatisfaction could be obtained because it provided better esthetics, function, and retention (Fig.8).
However, long-term follow-up is necessary for maintaining the connective strength between thelabial and lingual segments and to confirm the clean condition of the joint area.