Int J Stomatol

Int J Stomatol ›› 2026, Vol. 53 ›› Issue (2): 166-175.doi: 10.7518/gjkq.2026014

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Local risk factor analysis of natural tooth-related maxillary sinus floor elevation

Dongzhe Song1(),Yi Man2,Dingming Huang1()   

  1. 1.State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Dept. of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
    2.State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Dept. of Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
  • Received:2025-02-12 Revised:2025-06-05 Online:2026-03-01 Published:2026-02-13
  • Contact: Dingming Huang E-mail:dongzhesong@scu.edu.cn;dingminghuang@163.com
  • Supported by:
    Technological Innovation and Development Project Granted by Chengdu Science and Technology Bureau(2024-YF05-00565-SN);Clinical Research Program of West China Hospital of Stomatology, Si-chuan University(LCYJ-MS-202304)

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Abstract:

Natural tooth-related maxillary sinus floor elevation has emerged as an effective approach for maintaining natural teeth after the adequate control of endodontic infection and resolution of periapical disease. The procedure is performed within the anatomical context of the maxillary tooth-bone-sinus complex, and its success is largely determined by careful consideration of multiple local anatomical and biological factors. This article addresses tooth-related factors (such as root length and spatial position), alveolar bone conditions (including residual bone height and proximity to the greater palatine neurovascular bundle), and maxillary sinus ana-tomy (including sinus floor configuration and Schneiderian membrane thickness), in addition to the positional relationship between tooth roots and the maxillary sinus. By systematically evaluating these site-specific risk factors, this article aims to inform preoperative assessment and treatment planning and enhance surgical safety, cli-nical predictability, and long-term treatment outcomes.

Key words: maxillary tooth-bone-sinus complex, natural tooth-related maxillary sinus floor elevation, risk factors

CLC Number: 

  • R78

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Fig 1

The vertical and horizontal distances between the tooth root and the maxillary sinus"

Fig 2

Schematic diagram of typeⅠclassification of positional relationship between tooth root and maxillary sinus"

Tab 1

TypeⅡclassification of positional relationship between tooth root and maxillary sinus"

测量指标Ⅱ型分类
垂直距离≤3 mm（a）>3 mm（b）
水平距离≤2 mm（c）>2 mm（d）
与窦底的位置近中（M）/远中（D）颊侧（B）/腭侧（P）

Fig 3

Schematic diagram of type Ⅱ classification of positional relationship between tooth root and maxillary sinus"

Fig 4

Schematic diagram of type Ⅲ classification of positional relationship between tooth root and maxillary sinus"

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