Evaluation of the Accuracy of Conventional and Digital Implant Impression Techniques in Bilateral Distal Extension Cases
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 8
- 试验地点
- 2
- 主要终点
- Accuracy of digital and conventional implant impression techniques in partially edentulous patient
研究概览
简要总结
The purpose was to evaluate the accuracy of traditional and digital implant level impression procedures by using three-dimensional superimposition analysis , and evaluate the passive fit of screw- retained implant supported restorations fabricated using conventional and digital impression techniques in bilateral distal extension cases (class I kennedy classification)
详细描述
Eight patients who had missing all mandibular posterior teeth except first premolars were included in this study. In each patient, 4 implants were placed, 2 in each side to support 3 units screw retained zirconia restorations. Three months after implant placement, each patient underwent two implant level impression techniques (n=8) for each technique: Conventional implant impressions CII (pick-up, splinted transfers), and digital implant impressions DII were captured with TRIOS 3 Shape intraoral optical scanner. In this study, digital impression was considered as a reference data.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 30 Years 至 55 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •All participants have sufficient bone length and width for implant insertion.
- •General health of the patients was evaluated by taking a full medical history to ensure that these patients were free from any systemic conditions that would have impaired implant osseointegration
- •Good oral hygiene
- •Sufficient inter-arch spaces
- •The opposing arch was almost dentulous, and any missing teeth were restored using a fixed partial denture.
排除标准
- •parafunctional habits
- •Heavy smoking
- •Those patients with systemic diseases that may influence soft or hard tissue healing.
- •Patients with a history of radiation therapy in the head and neck region.
- •Patients with a history of radiation therapy in the head and neck region.
结局指标
主要结局
Accuracy of digital and conventional implant impression techniques in partially edentulous patient
时间窗: 12 months
GOM Inspect 2016, Gom GmbH,) that was used to superimpose the Standard tessellation language (STL) datasets of conventional open tray impression technique onto the STL file of the reference (digital implant impression technique) to assess the accuracy and calculate the three-dimensional deviations of scan bodies in color- coding map in micrometers (µm)
次要结局
未报告次要终点
研究者
Wafaa elashry
Assistant lecturer at prosthodontic department
Tanta University