Int J Stomatol ›› 2021, Vol. 48 ›› Issue (3): 249-259.doi: 10.7518/gjkq.2021059

• Expert Forum •     Next Articles

Related problems in clinical practice of alveolar ridge preservation

Hu Wenjie()   

  1. Dept. of Periodontology, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
  • Received:2021-01-15 Revised:2021-02-20 Online:2021-05-01 Published:2021-05-14
  • Contact: Wenjie Hu;
  • Supported by:
    Capital Foundation for Clinical Characteristics and Application Research of Beijing Municipal Science & Technology Commission(Z161100000516042);Peking University Clinical Scientist Program(BMU2019LCKXJ010)


Good soft and hard tissue conditions are important for the successful placement of dental implants.However, following tooth extraction, the alveolar ridge undergoes physiological remodeling that results in vertical and horizontal bone reduction, which affects prosthetically driven implant restoration. Alveolar ridge preservation can effectively preserve and reconstruct the volume of alveolar bone. Alveolar ridge preservation with minimally invasive extraction and minimally flap at molar extraction sites with severe periodontitis is strategically recommended to clinicians. This article discusses the changes in soft and hard tissues after natural healing of tooth extraction sockets, the influencing factors of successful alveolar ridge preservation, and the characteristics of alveolar ridge preservation at tooth extraction sites with severe periodontitis.

Key words: extraction socket healing, alveolar ridge preservation, atraumatic extraction, severe periodontitis, implant therapy

CLC Number: 

  • R782.1


Fig 1

Clinical photo (left) and sagittal view of cone-beam CT image (right) on natural healing site after tooth extraction"

Fig 2

Sagittal views of cone-beam CT images obtained immediately and after 6-month period healing of natual socket healing"

Fig 3

Sagittal views of cone-beam CT images obtained immediately and after 6-month period healing after the alveolar ridge preservation"

Fig 4

Atraumatic extraction and minimal flap ridge preservation produces in #17 with severe periodontitis"

Fig 5

Radiographic examination performed immediately (above) and after 6-month period healing (below) after traumatic extraction and minimal flap ridge preservation in #17 with severe periodontitis"

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