Question 38 · LDEK · Implantology and preprosthetic surgery
The second stage of bone loss according to Harris and coworkers’ classification is characterized by:
1) advanced loss with sufficient amount of bone for implantation, but with a bad quality of bone;
2) advanced loss with insufficient amount of bone for implantation;
3) complex losses located in the anterior part of the maxilla with very high esthetic demands;
4) losses with optimum amount of buccal bone plate and surrounding soft tissue.
The correct answer is:
2) advanced loss with insufficient amount of bone for implantation;
3) complex losses located in the anterior part of the maxilla with very high esthetic demands;
4) losses with optimum amount of buccal bone plate and surrounding soft tissue.
The correct answer is:
- A. only 1.
- B. only 2.
- C. only 3.
- D. only 4.
- E. 1,2.
Hint
The classification grades defects from simple to complex; the middle grade covers advanced defects whether bone quality or quantity is lacking.
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