This case report describes the treatment of a woman who lost mandibular posterior teeth. The bilateral alveolar ridges showed severe tissue defects. She complained of the discomfort of a partial denture connected by a lingual bar and wished for fixed prostheses. However, the height of the alveolar bone was insufficient to place standard-length implants. In addition, she rejected bone augmentation and the usage of biomaterials. Therefore, short implants were placed in both sides of atrophic alveolar ridges without tissue augmentation. Conventional crowns were placed on the right side on three short implants, and a unilateral distal-extension partial implantretained partial denture (IRPD) using magnetic attachment was placed on the left side using the two available short implants. The patient was satisfied with the outcome of this treatment for 12 years even though a clasp was added to the removable partial denture at 11 years due to the wear of the magnet keepers. The combination of short implants and an IRPD using magnetic attachment is effective for patients with a severely atrophic posterior mandibular from the aspect of minimal intervention. 【 T h e Jo ur n al o f t h e A c a d em y o f Clinic al D e n t is t r y 3 7 (1・2): 7 2-8 0 ,2 017 】 Combination of short implants and a unilateral distal-extension implant-retained partial denture in case of severely reduced ridge height mandibular posterior region: 12-year follow-up
Recently, all-ceramic restoration, representive for zirconia, has been focused based on the development of CAD/CAM technique and its biocompatibility. However, the application of allceramic restoration was limited to single tooth originally, and it was diffi cult to use it for full-mouth reconstruction by its physical properties for the cases in which both tooth and implant exist.In this study, we considered how we use all-ceramic restoration for full-mouth reconstruction through some cases in which both teeth and implants exist. We concluded that adequate selection of application, laboratory techniques based on understanding the property of materials, correct clinical processes in the determination of relationship of maxilla and mandibullar and the management of the changes of occulusion are crucial for all-ceramic restoration.
CAD/CAM
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