Horizontal and Vertical Dimensional Changes of Peri-implant Facial Bone Following Placement of T3 Implants: a 1-year Cone Beam Computed Tomography Study
试验速览
- 阶段
- 4 期
- 状态
- 已完成
- 发起方
- 入组人数
- 40
- 试验地点
- 2
- 主要终点
- horizontal buccal bone thickness
研究概览
简要总结
40 consecutive adult patients, requiring the insertion of dental implants in the aesthetic area (from second premolar to second premolar) will be enrolled in the study. At the time of surgery, a full thickness flap will be elevated, the implant bed will be prepared according to the manufacturer's instruction and the implants will be then seated into the bone. T0 corresponds to the time of implant insertion, T1 to the time of healing abutment's connection (T0=T1 for single stage implants), and T2 corresponds to 1-year follow-up from healing abutment's connection.
Cone Beam Computed Tomography (CBCT) scans will be taken immediately after abutment connection (T1) and 1-year after (T2). The midsagittal cut of each implant will be identified, and measurements will be made at predetermined levels. Horizontal facial bone thickness (HFBT) and Vertical facial bone level (VFBL) will be measured. HFBT will be measured at 0, 3, 6 and 9 mm apical to the implant platform. VFBL wil be the perpendicular distance from the implant platform to the most coronal point of the facial bone. Changes between T1 and T2 will be calculated.
详细描述
The long term results and benefit of implant insertion in the aesthetic area have been well documented.
In the past few years, facial dimensional changes to the alveolar process following implant placement are object os study for both humans and animals investigations Recent studies suggest that platform switching decreases bone loss by 30% to 50%. It seems that the creation of a biologic width affects peri-implant bone loss to a significant extent and that platform switching is effective when the mucosal thickness allows the establishment of an horizontal biologic width.
A new implant with an hybrid surface (T3) has been recently launched by Biomet 3i.Aim of the present study will be to evaluate the degree of 3D marginal bone remodelling around T3 Prevail implants.
MATERIALS & METHODS:
40 consecutive adult patients, requiring the insertion of dental implants in the aesthetic area (from second premolar to second premolar) will be enrolled in the study. At the time of surgery, a full thickness flap will be elevated, the implant bed will be prepared according to the manufacturer's instruction and the implants will be then seated into the bone. Implants can be placed both with a single-stage or two-stage procedure. Implants inserted with a two-stage procedure will be re-opened after a submerged period of three months.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 90 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Healthy adult patients requiring implant insertion -
排除标准
- •Pregnancy history of malignancy history of radiotherapy or chemotherapy in the last 5 years long term steroidal or antibiotic therapy
结局指标
主要结局
horizontal buccal bone thickness
时间窗: 12 months after abutment connection
On Cone Beam images, the horizontal dimensional changes of peri-implant facial bone will be measured
次要结局
- vertical bone level(1 year after abutment connection)