The forces action through a FPD on to the abutment tooth should be directed:
1- As far as possible at right angles to the long axes of the teeth
2- Parallel to the long axes of the teeth
3- By decreasing the facio-lingual dimension of the pontic
4- By decreasing the Mesio-lingual dimension of the pontic
5- In a mesial direction , teeth nearer the midline will offer additional support
a- 1+3+4
b-1+2+5
c- 1+4+5
d- 2+3
e- 2+4
f- 2+5
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The term PONTICO is used to define: "the artificial tooth suspended between the abutment teeth is called PONTICO". The pontic is attached to the retainers, which are the restorations that are cemented to the properly prepared pillars.
The success or failure of a bridge depends largely on the design of the pontic. The design is dictated by the FUNCTION, THE AESTHETICS, the EASE OF CLEANING, the COMFORT OF THE PATIENT, and the maintenance of the health of the tissues of the edentula area.
The pontic can be made entirely of:
- Metal-ceramic
- Metal casting
- Ceramic (Hygienic)
The correct design is more important than the nature of the material, in relation to the possibility of cleaning and the health of the tissues. The contour and the nature of the contact of the pontic with the crest are very important.
The pontic designed to place them in visible areas, have to produce the illusion of being natural, aesthetic teeth, without compromising the possibility of being cleaned.
The pontic designed to place them in areas not visible, just have to restore the function and prevent the migration of teeth. Aesthetics is not the most important thing considered in this case, it is not necessary to use materials or contours that suggest the presence of a natural tooth.
The pontic should be almost a straight line, if possible on the retainers, to avoid any torsion on the retainers or on the pillars.
----------------------------
The term PONTICO is used to define: "the artificial tooth suspended between the abutment teeth is called PONTICO". The pontic is attached to the retainers, which are the restorations that are cemented to the properly prepared pillars.
The success or failure of a bridge depends largely on the design of the pontic. The design is dictated by the FUNCTION, THE AESTHETICS, the EASE OF CLEANING, the COMFORT OF THE PATIENT, and the maintenance of the health of the tissues of the edentula area.
The pontic can be made entirely of:
- Metal-ceramic
- Metal casting
- Ceramic (Hygienic)
The correct design is more important than the nature of the material, in relation to the possibility of cleaning and the health of the tissues. The contour and the nature of the contact of the pontic with the crest are very important.
The pontic designed to place them in visible areas, have to produce the illusion of being natural, aesthetic teeth, without compromising the possibility of being cleaned.
The pontic designed to place them in areas not visible, just have to restore the function and prevent the migration of teeth. Aesthetics is not the most important thing considered in this case, it is not necessary to use materials or contours that suggest the presence of a natural tooth.
The pontic should be almost a straight line, if possible on the retainers, to avoid any torsion on the retainers or on the pillars.
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Prostho fixed