Ivoclar Vivadent Vectris - Manual (Page 19)

19
WORKING
PROCEDURE
Inlay-retained bridges
Provide a preparation depth of at least 2.5 mm and an isthmus width of at least 2 mm in the fissure area.
The walls of the proximal box should be slightly flared. The bucco-lingual cavity width should be at least
3.5 mm in the proximal box. The proximocentral length should measure at least 4.0 mm, while the axial
depth should be at least 1.2 mm. A defect- and tooth-oriented preparation method may be used to prepare
the proximal shoulder. Ideally, a shoulder of at least 1.5 mm should be prepared. Round all internal angles to
allow for an optimum fit. Do not locate preparation margins on surfaces involved in masticatory functions.
Eliminate proximal contacts. Do not prepare slice-cut or feather edge margins.
Please refer to the SR Adoro Instructions for Use and the SR Adoro Clinical Guide for further information.
2.5
≥ 4
≥ 1.2
≥ 3.5
2.5
≥
3.5
2.5
2