Cbct Implants

Question 1

Seibert (1983) classified

Answer 1

buccolingual loss,
apico- coronal loss,
and a combination of both.

Question 2

Allen 1985

Answer 2

mild if less than 4 mm,
moderate if 4–6 mm,
and extensive when greater than 6 mm.

Question 3

Tinti and Parma-Benfenati

Answer 3

They categorized “the envelope of bone” into five categories: extraction wounds, fenestrations, dehiscences, horizontal ridge deficiencies, and vertical ridge deficiencies. They also proposed treatment based on this classification.

Question 4

ITI SAC Classification

Answer 4

Bone volume is classified as: (1) sufficient, (
2) deficient horizontally but allowing simultaneous augmentation, (3) deficient horizontally requiring prior or bone augmentation, and (
4) deficient vertically and/ or horizontally, requiring prior bone augmentation.
This classification system is unique in that it also implements bone grafting as being done prior to the implant placement or allowing simultaneous