Assessment of the Accuracy of Surgical Guide Designed From Dental Model Optical Scan Versus Impression Inversion With Markers Techniques in Computer Guided Implantology. Randomized Clinical Trial.
试验速览
- 阶段
- 不适用
- 入组人数
- 10
- 试验地点
- 1
- 主要终点
- Evaluation of angular deviation of virtual implants and actual implant position according to scanning protocol "optical scan of the model" Versus "impression inversion" using CBCT.
研究概览
简要总结
Dental model cast accuracy can be affected by many variables as tray material, impression material and time elapsed before pouring the impression. All these factors would affect the accuracy of the surgical guide
Impression inversion with markers technique avoids the dimension changes that may happen from pouring of the dental model cast. Also it saves time as no need for optical scan of the model cast and for scan appliance even in cases of multiple restoration. Adding markers to impression tray ensures an accurate merge even if the patient has restored dentition that may cause scatter during the CT/CBCT scan.
This study will is for Assessment of the Accuracy of Surgical Guide designed from Dental Model Optical Scan versus Impression Inversion with Markers techniques in Computer Guided Implantology.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Other
- 盲法
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
盲法说明
Each patient will be given a code by the researcher (A.A) and the observers will be blind to which group this case belong.
Patients, evaluators and data analyst will be blinded
入排标准
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Partially Edentulous patients seeking for dental implants
- •Patients with Bucco-lingual bone thickness more than 6 mm allowing flapless implant placement.
- •Medically free patients.
排除标准
- •1- Patients with thin ridges. 2- Patients with systemic disease that may affect bone quality. 3- Patients with poor oral hygiene and active periodontal diseases. 4- Anatomical situations requiring regenerative procedure. 5- Completely edentulous patient 6-Patient with limited mouth opening
研究组 & 干预措施
Accuracy of surgical guide from Model optical scan
Accuracy of surgical guide from Impression inversion Technique
干预措施: Surgical guide designed from Impression inversion with markers (Other)
结局指标
主要结局
Evaluation of angular deviation of virtual implants and actual implant position according to scanning protocol "optical scan of the model" Versus "impression inversion" using CBCT.
时间窗: Immediate post operative
次要结局
- Evaluation of linear deviation of virtual implants and actual implant position according to scanning protocol " optical scan of the model" Versus " impression inversion " using CBCT(Immediate post operative)
研究者
Abdullah Ahmed Elmasry
Principal Investigator
Cairo University