Comparative evaluation of occlusal wear of CAD-CAM fabricated Zirconia, Zirconia-reinforced Lithium Silicate, Graphene crowns and their antagonist natural teeth at three different time intervals. A Prospective in-vivo study.
试验速览
- 阶段
- 4 期
- 状态
- 尚未招募
- 发起方
- 入组人数
- 75
- 试验地点
- 1
- 主要终点
- The occlusal wear of CAD-CAM fabricated
研究概览
简要总结
The computer-aided design computer-aided manufacturing (CAD-CAM) systems have been advanced dramatically over the last two decades. Recently, technological developments in CAD-CAM systems have enabled clinicians and dental laboratories to manufacture various kinds of restorations using different materials. Wear of tooth structure is a natural unavoidable process which occurs when tooth and tooth, or tooth and
restoration are in contact and slide against each other. However, this natural process may be accelerated by the introduction of restorations whose properties of wear differ from those of the tooth structure that they slide against. So, this study evaluates the in-vivo wear of different CAD-CAM fabricated crowns and their antagonists; which may influence the occlusal contact areas between these occluding surfaces.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 盲法
- Participant Blinded
入排标准
- 年龄范围
- 18.00 Year(s) 至 50.00 Year(s)（—）
- 性别
- All
入选标准
- •a) Age: 18 to 50 years b) Endodontically treated Tooth#16, tooth#26, tooth#36 or tooth#46 requiring full coverage crown.
- •c) Healthy, unrestored opposing natural teeth d) Fully dentate patients showing canine-guided occlusion e) Willing patients.
排除标准
- •a) Age less than 18 years and more than 50 years b) Missing or restored opposing natural teeth c) Opposing teeth with partial or complete denture prosthesis d) Opposing implant-supported restorations e) Patients showing signs of developmental enamel defects, fluorosis, parafunctional habits, temporomandibular joint disorders and osteoporosis.
- •f) Patients showing occlusal discrepancies like attrition, abrasion.
- •g) Patients undergoing orthodontic treatment.
- •h) Medically compromised patients.
- •i) Un-willing patients.
结局指标
主要结局
The occlusal wear of CAD-CAM fabricated
时间窗: The occlusal wear of CAD-CAM fabricated | Zirconia, Zirconia-reinforced Lithium Silicate | (ZLS), Graphene crowns and their antagonist | natural teeth at three different time intervals, i.e. at baseline, 6 months, 12 months, and 18 months period.
Zirconia, Zirconia-reinforced Lithium Silicate
时间窗: The occlusal wear of CAD-CAM fabricated | Zirconia, Zirconia-reinforced Lithium Silicate | (ZLS), Graphene crowns and their antagonist | natural teeth at three different time intervals, i.e. at baseline, 6 months, 12 months, and 18 months period.
(ZLS), Graphene crowns and their antagonist
时间窗: The occlusal wear of CAD-CAM fabricated | Zirconia, Zirconia-reinforced Lithium Silicate | (ZLS), Graphene crowns and their antagonist | natural teeth at three different time intervals, i.e. at baseline, 6 months, 12 months, and 18 months period.
natural teeth at three different time intervals.
时间窗: The occlusal wear of CAD-CAM fabricated | Zirconia, Zirconia-reinforced Lithium Silicate | (ZLS), Graphene crowns and their antagonist | natural teeth at three different time intervals, i.e. at baseline, 6 months, 12 months, and 18 months period.
次要结局
- The change in occlusal contact area distribution(between CAD-CAM fabricated Zirconia,)
研究者
Dr Yogesh S Ingole
Government Dental College and Hospital, Nagpur.