Assessment of The Accuracy of Complete Crown 3D Superimposition Technique Relative to The Gold Standard Technique for Digital Quantification of Volumetric Soft Tissue Changes in The Esthetic Zone
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 入组人数
- 12
- 试验地点
- 2
- 主要终点
- Superimposition accuracy
研究概览
简要总结
The aim of this study is to assess the precision of the complete crown technique employed for the superimposition of 3D models, specifically in the quantitative volumetric evaluation of gingival tissues. This technique was initially introduced in an in-vitro study by Dritsas et al. (2023) as a means to achieve an accurate, reproducible, and simple method for quantification of gingival recession.
详细描述
This study will involve the analysis of digital models in. ply format acquired through intraoral scanning of patients scheduled for esthetic crown lengthening,
A. Pre-analytical Phase:
In an interview, a full medical history is obtained. Clinical and radiographic examinations are completed before consent signing for study enrollment.
Full mouth supra and subgingival debridement will be performed for patients using an ultrasonic device with supragingival scaling inserts, followed by Universal or Gracey's curettes for thorough subgingival debridement. Patient preparation will be completed in a single visit. Comprehensive oral hygiene instructions will be provided to the patient, including instructions for brushing teeth twice daily using a soft toothbrush and employing a circular scrub technique.
Additionally, guidance will be given on interdental cleansing, using either waxed dental floss or a toothpick appropriate for the size of the interdental embrasure.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Diagnostic
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 60 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Patients aged 18 years or older.
- •Patients requiring esthetic crown lengthening.
- •Full-mouth plaque and bleeding score not exceeding 20%.
- •Presence of at least 2.5 mm keratinized tissue width (Pontoriero & Carnevale, 2001).
- •Patients showing motivation to comply with post-operative care instructions and follow-up appointments.
排除标准
- •Systemic health conditions that contraindicate or affect healing of periodontal surgery.
- •Patients requiring prosthetic crowns or restorations in the esthetic zone.
- •Gummy smile with normal tooth proportions.
- •Patients treated with medications known to affect the gingiva (Phenytoin, Cyclosporine and Nifedipine).
- •Pregnant and nursing females.
结局指标
主要结局
Superimposition accuracy
时间窗: 6 months
Using Geomagic Software (RMS) in Millimeter(mm)
次要结局
- Soft tissue volumetric Changes(6 months)
- Intra-Inter Assessor reliability(6 months)
- Gingival Margin level change(6 months)
- Operator's satisfaction(6 months)
研究者
Ahmed Mohamed Hassan
assistant lecturer
British University In Egypt