顛覆傳統 做假牙不需margin 做 overcontour? 是否應當考量 cement流出margin 會造成 gingival inflammation?

BIOLOGICALLY ORIENTED PREPARATION TECHNIQUE
THE 7 FUNDAMENTALS
OF B.O.P.T

BOPT: For Sustainable Periodontal Health and
Optimal Esthetics

Biologically oriented preparation
technique (BOPT): a new approach for prosthetic restoration of
periodontically healthy teeth

Comparison of horizontal and vertical methods
of tooth preparation for a prosthetic crown

B.0.P.T. Technique Sweden & Martina
IMPLANTOLOGY

Biologically oriented preparation technique (BOPT)
for implant-supported fixed prostheses

Influence of Biologically Oriented Preparation Technique on Peri-Implant Tissues; Prospective Randomized Clinical Trial with Three-Year
Follow-Up. Part II: Soft Tissues