PMC4345239_01
The ideal shape of the prepared cavities to receive the modified metal-ceramic IRFPD.
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fig1
All preparations were finished by rounding sharp angles.  Figure 1 shows the shape of the prepared cavities to receive the modified metal-ceramic IRFDP.
A cross sectional lingual view of the of the modified metal-ceramic IRFDP and its relation to the supporting dental structures.
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fig2
Figure 2 demonstrates a cross sectional lingual view of the modified metal-ceramic IRFDP and its relation to the supporting dental structures. Figures 3(a)-3(d) present clinical photographs of the reported case.
(a) Preoperative intraoral view illustrating loss of mandibular second premolars in a 24-year-old male patient. (b) Intraoral occlusal view illustrating the abutment teeth prepared to receive the metal-ceramic IRFDPs: (left) the modified design and (right) the traditional design. (c) Try-in of the IRFDPs before cementation: (left) the modified design and (right) the traditional design. (d) Intraoral occlusal view of the two IRFDPs after cementation: (left) the modified design and (right) the traditional design.
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fig3
Figure 2 demonstrates a cross sectional lingual view of the modified metal-ceramic IRFDP and its relation to the supporting dental structures. Figures 3(a)-3(d) present clinical photographs of the reported case.
Intraoral occlusal view of the two metal-ceramic IRFDPs after 1-year follow-up time: (left) the modified design and (right) the traditional design.
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fig4
During the latest follow-up examination after one year of prosthesis delivery the patient reported that he was satisfied with both traditional and the modified metal-ceramic IRFDPs.  Figure 4 shows the reported case after a 1-year follow-up time.