Concealed Jiggling Effect: A Novel Risk Factor for Complications of Implant-Supported Fixed Partial Denture

Figure 1. Intraoral view of the preoperative condition: occlusal wear of remaining teeth, which was suspected to be caused by the patient's teeth-grinding habit, as nocturnal bruxism was observed. (a) Maxillary occlusal view. (b) Frontal view. (c) Mandibular occlusal view. (d) Right lateral view. (e) Left lateral view. Figure 2. Panoramic radiographs of the preoperative condition. Moderate to severe bone loss was observed in all remaining teeth.

Figure 3. Computed tomographic examination at treatment planning. Sagittal slices indicated that bone volume at the surgical zone of the right maxillary first premolar and right mandibular molar sites presented with sufficient width and length to place implant fixtures. However, the vertical bone volume between the alveolar crest and sinus floor was 3 mm at the right maxillary sinus regions of second premolar site. (a) Maxillary coronal view. (b) Mandibular coronal view. (c) Sagittal view of tooth #15. (d) Sagittal view of tooth #14. (e) Sagittal view of tooth #46. Figure 4. Panoramic radiographs 1 year after installation of implant suprastructures.

Intraoral view 1 year after installation of implant suprastructures. (a) Maxillary occlusal view. (b) Frontal view. (c) Mandibular occlusal view. (d) Right lateral view. (e) Left lateral view.