anatomical considerations Flashcards
Subgingival restorative dental margins can cause periodontal inflammation and bone loss if placed too far —-.
Subgingival restorative dental margins can cause periodontal inflammation and bone loss if placed too far apically.
Violations of biologic width
when margins are placed closer than 2 mm to the alveolar bone crest. (
order the following top to bottom
ging sulcus
CT attachment
junc ep.
ging sulcus
junc ep.
CT attachment
both 1mm
junc ep and CT attachment
.7 mm
ging sulcus
Infringement on the Biologic Width by cutting tooth structure
gingival inflammation -
periodontal pocket formation -
alveolar bone loss
Consequently, it is recommended that there be at least —mm between the gingival margin and bone crest to avoid infringement on the Biologic Width
Consequently, it is recommended that there be at least 3.0 mm between the gingival margin and bone crest to avoid infringement on the Biologic Width
- subgingival caries or fracture
- inadequate clinical crown length for retention
- unequal or unaesthetic gingival heights
patient will need surgical intervention
—- —– on sound tooth structure and retention form, any surgery should provide at least – mm from the apical extent of the caries or fracture to the bone crest
margin placement on sound tooth structure and retention form, any surgery should provide at least 4 mm from the apical extent of the caries or fracture to the bone crest
Placement of the restorative margin —– mm into the sulcus allows for the maintenance of the biologic width.
Placement of the restorative margin 0.5 mm into the sulcus allows for the maintenance of the biologic width.