A radiographic evaluation of peri-implant bone following immediate implant placement with immediate temporization.
试验速览
- 阶段
- 2/3 期
- 状态
- 招募中
- 入组人数
- 15
- 试验地点
- 1
- 主要终点
- 1. distance from the external surface of the buccal and Palatal/lingual alveolar plates to the implant surfaces
研究概览
简要总结
Patients receiving implants today are often unaware of the original loading protocols of 3 to 6 months of load-free healing prior to restorative therapy.
Often, when patients require extraction of an anterior tooth, they do not accept even the shortest period of partial edentulism.
Thus, the loss of a single tooth, mainly in the aesthetic zone, and its replacement by implants has been a challenge in recent decades.
There have been two main hurdles to overcome:
1. -The final aesthetic result
2. -The long waiting periods required by conventional implant protocols
In the early days of implant dentistry, encapsulation by fibrous connective tissue was reported when implants were immediately loaded, while a period of stress-free healing would allow for direct bone-to-implant contact i.e.
Osseointegration .
Therefore the recommended waiting time, according to the original Brånemark protocol, was at least three months in the mandible and six months in the maxilla.
However, during the past three decades, technological developments and continuous clinical research have provided us with improved protocols in an attempt to meet the expectations of a shorter treatment period, improved
aesthetics and more convenience for the patient.
The terms “non-functional immediate loadingâ€, “immediate restoration†or “immediate provisionalization†or “immediate temporization†are used when the prosthesis is placed on implants at some point within the first 72 hours without
full occlusal contact with the teeth of the opposite jaw.
Keeping the provisional restoration out of occlusion has to do with the idea of controlling the load on a single tooth. Several studies have reported a high success rate on single-tooth implants placed post-extraction which received an immediate non-functional provisional crown.
The most important reason of immediate implant placement with immediate temporization is that positioning an implant into a post-extractive socket can considerably reduce crestal bone resorption and at the same time provide aesthetic rehabilitation immediately after extraction of the tooth especially in the aesthetic zone.
Some commonly seen advantages include better implant survival rates, improved esthetics, maintenance of the hard and soft tissues at the extraction site, and higher patient satisfaction compared with delayed implant placement.
It is critical to monitor the peri-implant bone changes after immediate implant placement especially after prosthetic loading. This can be accomplished by a device that provides a three-dimensional view of the hard tissue. The recently developed cone beam computed tomography (CBCT) scan meets these requirements, with the added benefit of decreased x-ray exposure as compared to conventional CT imaging.
Aim:
To evaluate Peri-implant bone following immediate implant placement with immediate temporization using Cone Beam Computed Tomography (CBCT).
Objectives:
-
To evaluate and compare the horizontal alveolar ridge changes on facial and palatal cortical plates following immediate implant placement with immediate temporization.
-
To evaluate and compare total bucco-lingual dimensional changes following immediate implant placement with immediate temporization.
-
To evaluate and compare the vertical buccal alveolar ridge changes following immediate implant placement with immediate temporization.
研究设计
- 研究类型
- Interventional
- 分配方式
- Not Applicable
- 盲法
- Not Applicable
入排标准
- 年龄范围
- 20.00 Year(s) 至 65.00 Year(s)（—）
- 性别
- All
入选标准
- •1.Systemically healthy patients between the age group of 20-65 years with teeth indicated for extraction and future prosthesis.
- •2.Good oral hygiene defined as a full mouth plaque score <25%(O’Leary et al, 1972) 3.Indications for extraction include trauma, endodontic treatment failure, or non-restorable carious teeth, teeth with healthy periodontium, alveolar sockets with 4 wall architecture and intact labial plate.
- •4.Ideal soft tissue level and contour at the facial aspect of the failing tooth and thick gingival biotype as determined by De Rouck et al(2009) 5.Teeth should have adequate residual apical bone below the tooth ≥ 4 mm.
- •6.Patients willing to participate and sign an informed consent.
- •7.Patients who are compliant.
排除标准
- •1.Systemic conditions contraindicating surgical intervention 2.Immediately placed implants that have failed before the prosthetic loading.
- •3.Patients having history of severe bruxism and/or clenching habits.
- •5.Patient having history of bone disorder.
- •6.Teeth having acute periapical or periodontal pathology before the extraction.
- •7.Pregnant and lactating females.
结局指标
主要结局
1. distance from the external surface of the buccal and Palatal/lingual alveolar plates to the implant surfaces
时间窗: The sites will be evaluated radiographically at baseline (day of immediate loading) and 6 months after loading.
Horizontal measurement:
时间窗: The sites will be evaluated radiographically at baseline (day of immediate loading) and 6 months after loading.
2.distance from external surface of the buccal alveolar plate to the external surface of the palatal/lingual alveolar plate (buccolingual width)
时间窗: The sites will be evaluated radiographically at baseline (day of immediate loading) and 6 months after loading.
Vertical facial bone level will be measured on facial surface of the implant as the perpendicular distance from the implant platform to the most coronal point of the facial bone.
时间窗: The sites will be evaluated radiographically at baseline (day of immediate loading) and 6 months after loading.
次要结局
未报告次要终点