Chinese Journal of Oral Implantology ›› 2021, Vol. 26 ›› Issue (5): 334-338.DOI: 10.12337/zgkqzzxzz.2021.10.012

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Research progress of bone window design for maxillary sinus floor elevation through lateral window approach

Zhang wen1,2, Gu Xinhua1   

  1. 1Department of Stomatology, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310003, China;
    2Quzhou Hospital of Traditional Chinese Medicine, Zhejiang 324002, China
  • Received:2021-09-05 Online:2021-10-30 Published:2021-11-12
  • Contact: Gu Xinhua, Email:guxh@zju.edu.cn, Tel: 0086-571-87236338

Abstract: The key of maxillary sinus floor elevation through lateral window approach is to expose and lift the sinus membrane, and the design of bone window is the primary factor to expose the sinus membrane. The traditional bone window is designed as a single and large window. If there is a sinus septum, 2 or 3 bone windows will be designed to avoid sinus septum. The lower boundary of the bone window is generally 3-5 mm at the bottom of the maxillary sinus. In recent years, many scholars have continuously studied the size, height, and distance from the alveolar ridge border, which has reduced intraoperative and postoperative discomfort and increased patient satisfaction. This article reviews the size, position, and shape of the bone window and digitally assisted lateral window osteotomy by consulting the recent literature.

Key words: Maxillary sinus floor elevation, Bone window, Digital technology, CAD/CAM