1. Clinical application of removable bridge prosthese with magnotelescopic crown

Eri Makihara, Shin-ichi Masumi, Masahiro Arita and Mayumi Yagi

Division of Occlusion & Maxillofacial Reconstruction, Kyushu Dental College, Kitakyushu , Japan

Introduction

There are many female patients who refuse to apply removable partial denture from their aesthetic problem, even though fixed bridge is poor convalescence from the prosthodontic standpoint.

 In this case report, we fabricated a removable bridge for the patient who didn’t want to wear a removable partial denture because of an aesthetic problem.

Clinical History

A 54-years-old female patient visited the Kyushu Dental College Hospital for the recovery of her aesthetic and masticatory disorders. She had a bad bridge prosthese from #22 to #15 (#11, #12, #13, and #14; missing tooth, #22, #21, and #15; abutment tooth). Her tooth of #15 was hopeless. We suggested to her that extraction of #15 and fabrication of fixed bridge prosthese from #22 to #17. But, she refused the extraction of tooth. Although we suggested a removable partial overdenture from #11 to #15, she also refused a removable partial denture.

 Finally, we suggested a removable bridge prosthese with magnotelescopic crowns of #22, #21, #15, #16, and #17 and then she accepted.

Treatment Procedure

Crowns of #17 and #16 were removed and a fixed bridge from #22 to #15 was also removed. Then five inner crowns with keeper of magnetic attachment of #22, #21, #15, #16, and #17 were fabricated and fixed on the abutment teeth with an adhesive resin cement (Panavia, Morita, Japan) (Fig.1 and 2)．The inner crowns were made with an Au-Ag- Pd alloy.

 

 

 

 

 

 

 

 

 

 

 

 

  Fig.1 Inner crowns with keeper                                           Fig.2 Fixed inner crowns 　

 

A removable bridge prosthese from #22 to #17 including five outer crowns were also made with an Au-Ag- Pd alloy. Magnetic assemblies were fixed into the outer crowns with the same cement (Fig. 3 and 4).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 Fig.3 Finished removable bridge                                            Fig.4 Fixed magnet assembries

 

Progress

Her complaints of anesthetic and masticatory disorders were improved. The removable bridge prosthese we fabricated had been used with no problem (Fig.5 and 6).

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig.5 Frontal view                                                Fig.6 Occlusal view

 

On July 11, 2006, she visited to our clinic because of tooth pain of #15. From the X-ray finding, the tooth was caused root fracture (Fig.7). After extraction of #15, we added auto-polymerized resin into the inside of the outer crown of #15 and applied as a dummy (Fig.8). The removable bridge prosthese has been used without re-fabrication.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

         Fig.7 X-ray finding of #15                          Fig.8 Outer crown of #15 was improved as a dummy

 

Discussion

A magneotelescopic crown is useful for not only removable partial denture, but also removable bridge prosthese. In this case, these treatments were satisfied with both patient and dentist.