retention groove


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re·ten·tion groove

one of the grooves forming opposing vertical constrictions in a tooth to aid in retention of a dental restoration.

retention groove

a depression formed by preparing vertical constrictions in a prepared tooth cavity, which improves the holding ability (retention form) of a restoration. Compare resistance form.

re·ten·tion groove

(rē-tenshŭn grūv)
Striatum forming opposing vertical constrictions in a tooth to aid in retention of a dental restoration.
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