Int J Stomatol

Int J Stomatol ›› 2026, Vol. 53 ›› Issue (1): 84-90.doi: 10.7518/gjkq.2026005

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Application progress of buccal wall morphology affecting alveolar ridge preservation at periodontitis sites

Keer Chen(),Jiaqi Bao,Weilian Sun()   

  1. Dept. of Periodontology, the Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310009, China
  • Received:2024-12-11 Revised:2025-04-02 Online:2026-01-01 Published:2025-12-31
  • Contact: Weilian Sun E-mail:keerchenlily@163.com;weiliansun@zju.edu.cn
  • Supported by:
    Basic Public Welfare Research Project of Zhejiang Province(LTGY23H140005)

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Abstract:

Periodontitis is one of the common causes of tooth extraction in adult patients. After tooth extraction, the alveolar cavity frequently undergoes bone resorption, which in turn affects the efficacy of implant restoration. Alveolar ridge preservation (ARP) is a bone augmentation procedure involving the implantation of biological materials into the extraction socket during tooth extraction. It delays alveolar bone resorption and restores the aesthetic and functional integrity of the alveolar ridge. In contrast to non-periodontitis tooth extraction pits, periodontitis tooth extraction pits features a more intricate and diverse healing process. The morphology of the buccal bone wall considerably influences linear and volumetric changes in bone tissue, changes in soft tissue volume and histological features after the healing of tooth extraction pits. This article summarizes and analyzes the influence of various buccal bone wall configurations on the efficacy of ARP in periodontitis tooth extraction sites. Thick buccal walls influenced the deceleration of alveolar bone resorption more markedly than thin buccal walls, whereas extensive buccal wall defect sites necessitated supplementary soft and hard tissue augmentation surgery. This study offers initial diagnostic and therapeutic concepts for the selection of surgical interventions for ARP on the basis of various indications.

Key words: periodontitis, tooth extraction, alveolar ridge preservation, buccal bone wall morphology

CLC Number: 

  • R781.4

TrendMD: 

Tab 1

ST classification"

拔牙窝类型ST1ST2ST3
ST1AST1BST3AST3BST3C
形态颊壁完整，厚度≥1 mm颊壁完整，厚度<1 mm颊壁骨开窗颊壁骨开裂，≤1/3颊壁高度颊壁骨开裂，1/3~2/3颊壁高度颊壁骨开裂，≥2/3颊壁高度
再生潜能高较高中较低低极低
是否行ARP否是是是是是
生物材料无胶原蛋白交联可吸收膜交联可吸收膜d-PTFE膜d-PTFE膜
创口愈合一期一期一期一期二期二期
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