Ivoclar Vivadent SR Nexco Paste - Manual (Page 28)

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3. Design of the bridge pontic
Bridge pontics are designed taking esthetic and functional aspects as well as oral hygiene into account. the pontic rest on
the alveolar ridge should consist entirely of metal (polished to a high gloss) or composite material. the transition between
metal and lab composite should always be located in areas where oral hygiene is ensured in an ideal way. If enough
space is available, the rest should consist of composite material. In order to ensure adequate stability between the bridge
pontic and the bridge abutments, a palatal and/or lingual scallop is recommended.
If space is limited, the rest should consist of metal polished to a high gloss. the palatal or lingual restoration surfaces are
designed in metal for reasons of stability. In order to avoid inclusions at the bridge pontic due to massive cast parts, the
bridge pontic should be hollowed out. a wax wire is placed in the hollowed space (ample space available) and formed in
such a way that it is level with the abutment teeth. this creates additional retentive surface and thus allows an even
shade effect to be created in the bridge pontic and abutment.
Sufficient space Limited space