Impact of Alveolar Ridge Preservation on the Potential Need for Sinus Floor Elevation in Posterior Maxillary Implant Sites: A 10-year Retrospective Radiographical Study
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 发起方
- 入组人数
- 130
- 试验地点
- 1
- 主要终点
- Mid-ridge height in mm
研究概览
简要总结
This research aims to investigate the influence of alveolar ridge preservation, after extraction of maxillary posterior teeth, on the potential need of sinus floor augmentation procedures (that include lateral or crestal sinus augmentations). From peri-apical radiographs, maxillary posterior teeth will be divided into 4 groups according to the relationship of their apexes with the sinus. Then, the patients will be divided into 2 sub-groups: unassisted socket healing (only extraction) and ARP group (extraction + ARP) and their CBCT scans before implant placement will be collected. The CBCT scans should be at least 4 months post-extraction and ARP. Depending on the residual bone height, patients will be divided into 3 categories, according to the ABC classification:
- In need of lateral sinus floor augmentation
- In need of crestal sinus floor augmentation
- No need for sinus floor augmentation, therefore, implant placement.
These divisions will be conducted, according to:
- The residual bone height (RBH) which is the height in mm from the alveolar ridge crest to the lowest point of the maxillary sinus floor.
The results of the proposed hypothesis are verified and interpreted after statistical analysis.
详细描述
- Department or division:
Department of Periodontology, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon. 2. Type of the project:
Master's Thesis in Periodontology. 3. Title of the project:
Impact of Alveolar Ridge Preservation on the Potential Need for Sinus Floor Elevation in Posterior Maxillary Implant Sites: A 10-year Retrospective Radiographical Study. 4. Research and publication team
- Principle researcher:
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Other
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •• Patients aged ≥18 years.
- •Patients who underwent alveolar ridge preservation after extraction of maxillary posterior teeth, as a test group.
- •Patients who underwent extraction of maxillary posterior teeth with unassisted socket healing without alveolar ridge preservation as a control group.
排除标准
- •• The presence of a clinically symptomatic periapical radiolucency, acute abscesses, or chronic sinus tract, that may falsify the classification of posterior maxillary teeth on 2D radiographs.
研究组 & 干预措施
group 3 : extraction + type 2
type 2 : the maxillary roots are touching the sinus floor
group 4 : extraction + type 2 + ARP
type 2 : the maxillary roots are touching the sinus floor + having underwent alveolar ridge preservation
干预措施: Alveolar ridge preservation using bony biomaterials (Procedure)
group 5: extraction + type 3
type 3: the molar roots are protruding in the sinus
group 6 : extraction + type 3 + ARP
type 3: the molar roots are protruding in the sinus + underwent alveolar ridge preservation
干预措施: Alveolar ridge preservation using bony biomaterials (Procedure)
Group 1: extraction + type 1
type 1 : the roots are not touching the maxillary sinus floor
group 2 : extraction + type 1 + ARP
type 1 : the roots are not touching the maxillary sinus floor + having underwent alveolar ridge preservation
干预措施: Alveolar ridge preservation using bony biomaterials (Procedure)
结局指标
主要结局
Mid-ridge height in mm
时间窗: 1 year
on CBCT scans taken 4-12 months after extraction (with alveolar ridge preservation or not), mid ridge height will be measured in mm according to the ideal implant position; that will be planned on BlueSky Bio software
次要结局
- need for either lateral sinus floor elevation, transcrestal sinus floor elevation or simple implant placement.(1 year)