2.9 diastema closure

most common site of diastema

maxillary centrals

2nd most common site of diastema

between central and lateral incisors

diastema causes

prominent labial frenum
congenitally missing teeth
small teeth/interarch tooth size discrepancy
hereditary
tongue thrust
perio disease
posterior bite collapse

diastema treatment

determine cause
ortho, composite, veneers or crowns

diastema closure complications

assymetrical widths
inappropriate length:width
incorrect midline position/angle
cervical ledges
poor emergence profile
poor contact area
residual black triangle

maximum height maxillary central

width x 1.33

minimum height maxillary central

width x 1.25

On average, central incisors and canines are approximately ______ in length and are _____% longer than lateral incisors.

equal
20

when the measurement from the contact point to the crest of bone was ___ mm or less, the papilla was present almost 100% of the time.

5

When the distance was ____ mm, the papilla was present 56% of the time.

6

When the distance was ___ mm or more, the papilla was present 27% of the time or less

7

bioclear

premade clear stent for diastema closure

width to length ratio

80%

golden proportions central:lat:canine

1.6:1:6