Expert consensus on the bone augmentation surgery for alveolar bone defects
10.12016/j.issn.2096-1456.2022.04.001
- Author:
ZHANG Fugui
1
;
SU Yucheng
2
;
QIU Lixin
3
;
LAI Hongchang
4
,
5
;
SONG Yingliang
6
;
GONG Ping
7
;
WANG Huiming
8
;
LIAO Guiqing
9
;
MAN Yi
7
;
JI Ping
1
Author Information
1. Department of Oral and Maxillofacial Surgery, Stomatological Hospital of Chongqing Medical University
2. Dental Implant Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences
3. The 4th Dental Division, Peking University School and Hospital of Stomatology
4. Department of Oral and Maxillofacial Implantology, Shanghai Ninth People&rsquo
5. s Hospital, Shanghai Jiaotong University School of Medicine
6. Department of Oral Implants, Hospital of Stomatology, Air Force Military Medical University
7. Department of Implantology, West China School/Hospital of Stomatology, Sichuan University
8. Department of Oral and Maxillofacial Surgery, Stomatology Hospital, Zhejiang University
9. Department of Oral and Maxillofacial Surgery, Guanghua Hospital of Stomatology, Sun Yat-sen University
- Publication Type:Journal Article
- Keywords:
alveolar bone defect;
classification;
implant restoration;
surgical technique;
bone augmentation surgery;
maxillary sinus floor elevation;
cortical autologous bone tenting;
bone quantity;
bone morphology;
expert consensus
- From:
Journal of Prevention and Treatment for Stomatological Diseases
2022;30(4):229-236
- CountryChina
- Language:Chinese
-
Abstract:
Alveolar bone is an important anatomic basis for implant-supported denture restoration, and its different degrees of defects determine the choices of bone augmentation surgeries. Therefore, the reconstruction of alveolar bone defects is an important technology in the clinical practice of implant restoration. However, the final reconstructive effect of bone quality, bone quantity and bone morphology is affected by many factors. Clinicians need to master the standardized diagnosis and treatment principles and methods to improve the treatment effect and achieve the goal of both aesthetic and functional reconstruction of both jaws. Based on the current clinical experience of domestic experts and the relevant academic guidelines of foreign counterparts, this expert consensus systematically and comprehensively summarized the augmentation strategies of alveolar bone defects from two aspects: the classification of alveolar bone defects and the appropriate selection of bone augmentation surgeries. The following consensus are reached: alveolar bone defects can be divided into five types (Ⅰ-0, Ⅰ-Ⅰ, Ⅱ-0, Ⅱ-Ⅰ and Ⅱ-Ⅱ) according to the relationship between alveolar bone defects and the expected position of dental implants. A typeⅠ-0 bone defect is a bone defect on one side of the alveolar bone that does not exceed 50% of the expected implant length, and there is no obvious defect on the other side; guided bone regeneration with simultaneous implant implantation is preferred. Type Ⅰ-Ⅰ bone defects refer to bone defects on both sides of alveolar bone those do not exceed 50% of the expected implant length; the first choice is autologous bone block onlay grafting for bone increments with staged implant placement or transcrestal sinus floor elevation with simultaneous implant implantation. Type Ⅱ-0 bone defects show that the bone defect on one side of alveolar bone exceeds 50% of the expected implant length, and there’s no obvious defect on the other side; autologous bone block onlay grafting (thickness ≤ 4 mm) or alveolar ridge splitting (thickness > 4 mm) is preferred for bone augmentation with staged implant placement. Type Ⅱ-Ⅰ bone defects indicate that the bone plate defect on one side exceeds 50% of the expected implant length and the bone defect on the other side does not exceed 50% of the expected implant length; autologous bone block onlay grafting or tenting techniques is preferred for bone increments with staged implant implantation. Type Ⅱ-Ⅱ bone defects are bone plates on both sides of alveolar bone those exceed 50% of the expected implant length; guided bone regeneration with rigid mesh or maxillary sinus floor elevation or cortical autologous bone tenting is preferred for bone increments with staged implant implantation. This consensus will provide clinical physicians with appropriate augmentation strategies for alveolar bone defects.
- Full text:牙槽骨缺损骨增量手术方案的专家共识.pdf
