关键词: 口腔修复, 牙体外形突度, 牙龈生物型, 牙槽骨

Abstract: Prosthodontics is the main method of treating tooth defect，dentition defect and dentition loss. In addition to restoring the shape and function of teeth，it is necessary to maintain long-term periodontal health and stability. Therefore，attention should be paid to the coordination of the morphology of periodontal soft and hard tissue in dental prosthodontics. In this paper，we will review the related research progress in crown contour convexity，gingival biotype and alveolar bone thickness，so as to provide reference for the formulation of clinical prosthetic plan and guidance for technicians to make prostheses.

Key words: prosthodontics, crown contour convexity, gingival biotype, alveolar bone