نسترن صباغ زاده

CROWN LENGTHENING

Here I Want To Explain, Why Surgical Crown Lengthening After Extrusion Or Forced Eruption Is Much Better Rather Than Surgical Crown Lengthening Alone?

A.The Norrmal Anatomical Crown-Root Ration Ror an Average Central Incisor Is 11:14

B. Here Is a Example Of a Tooth that Fractured 3mm Beyond CEJ

C.Surgical Crown Lengthening ALONE Would Produce an Unstable & Unesthetic Crown-Root Ratio 14:11

D. Extrusion Followed By Crown Lengthening Produce a More Stable Crown-Root Ratio Of 11:11 With a More Esthetic and Normal Crown Length