Ivoclar Vivadent Vectris - Manual (Page 24)

3. Designing the pontic
The pontic, connector and pontic/abutment contact surface are first contoured in wax and/or resin (Light Tray) and then a
silicone matrix is fabricated.
3.1 Pontic
Pontics are designed taking aesthetic and functional aspects as well as oral hygiene into consideration. The pontic must
not be larger than 10 mm in width and height to ensure that the material cures to an adequate depth. As a rule, the
pontic should be designed in such a way that it supports the cusps to ensure that the masticatory forces are evenly
distributed throughout the framework and to provide adequate support of the veneering material. Furthermore, cusp-
supporting pontics reduce the risk of delamination.
correct
3.2 Joint face of the connector
The design of the interdental connector between the pontic and the bridge abutment has a considerable effect on the sta-
bility and long-term clinical success of the restoration after it has been adhesively cemented in place. The dimension of the
interdental connector should measure at least 3 x 3 mm, i.e. the surface of the connector should be at least 9 mm 2 .
incorrect
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≥
3 mm
≥ 3 mm