使用锥形束计算机断层扫描通过两种骨支持方案评估上颌磨牙远端
该临床试验的目的是评估和比较埃及人使用 CBCT 进行双侧上颌磨牙远移时骨支撑 Fast Back 和骨支撑改良板簧自激活扩张器的骨骼和牙齿变化。 它旨在回答的主要问题是: • 骨支撑 Fast Back 和骨支撑改良板簧自激活扩张器是否能够有效地实现上颌磨牙的双侧远中移动
将根据以下标准选择患者:
- 恒牙列完整的患者。
- 良好的口腔卫生。
- 没有患者接受过任何正畸治疗。
- II 类磨牙关系。
- 下颌弓的拥挤程度最小或没有。
- 磨牙远移的非拔牙治疗计划。
- 低角度情况。
- 没有健康问题或活动性牙周病。
研究人员将比较骨支撑 Fast Back 矫治器和骨支撑改良板簧自激活矫治器,看看它们在上颌磨牙远移方面是否有效。
研究概览
地位
条件
详细说明
患者将被分为两组:
第 1 组:由 10 名患者组成,他们的上磨牙将使用骨支撑的 Fast Back(Fast Back Rapid Distalizer,leone,s.p.a,意大利)进行远端移出。
第 2 组:由 10 名患者组成,他们的上磨牙将使用骨支撑改良板簧自激活扩张器进行远中移动。 (Leaf Self Expander,利昂,s.p.a,意大利)。
- 将使用 CBCT 扫描评估腭骨支撑 Fast Back 和腭骨支撑改良板簧自激活扩张器的 3D 牙骨骼治疗效果。
- 治疗前 CBCT (T1) 和后远端化直至研究完成,每个受试者平均 1 年 (T2)
所有数据将使用 SPSS 进行收集、制表和统计分析。
研究类型
注册 (实际的)
阶段
- 不适用
联系人和位置
学习地点
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Gharbia Governorate
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Tanta、Gharbia Governorate、埃及、6620010
- Faculty of Dentistry
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参与标准
资格标准
适合学习的年龄
- 孩子
- 成人
接受健康志愿者
描述
纳入标准:
- 恒牙列完整的患者。
- 良好的口腔卫生。
- II 类磨牙关系。
- 磨牙远移的非拔牙治疗计划。
- 低角度情况。
- 医疗问题或活动性牙周病。
排除标准:
- 患者接受过任何正畸治疗。
- 下颌弓拥挤。
- 医疗问题或活动性牙周病。
学习计划
研究是如何设计的?
设计细节
- 主要用途:治疗
- 分配:随机化
- 介入模型:并行分配
- 屏蔽:双倍的
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
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实验性的:Palatally bone supported Fast Back
Group I : Consisted of 10 patients, their upper molar will be distalized with bone supported Fast Back (Fast Back Rapid Distalizer, leone, s.p.a, Italy).
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The Fast Back Rapid Distalizer (Leone S.p.A., Italy) was inserted intraorally following molar band cementation.
Two palatal miniscrews (2.0 × 13 mm) were placed under local anesthesia and engaged into the eyelets of the anterior arms of the appliance to provide skeletal anchorage.
The appliance was reactivated monthly (one turn per side) until bilateral Class I or cusp-to-cusp molar relationship was achieved.
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实验性的:Palatally bone supported modified Leaf Spring Self-Activated Expander
Group II : Consisted of 10 patients, their upper molar will be distalized with bone supported Modified Leaf Spring Self-Activated Expander (Leaf Self Expander, Leone S.p.A., Italy)
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The Modified Leaf Spring Self-Activated Expander (Leaf Self Expander, Leone S.p.A., Italy) was inserted intraorally following molar band cementation.
Two palatal miniscrews (2.0 × 13 mm) were placed under local anesthesia and engaged into the eyelets of the anterior arms of the appliance.
Upon insertion, the two retaining staples were removed to activate the superelastic NiTi leaf springs.
No further reactivation was required throughout treatment.
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研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Linear distalization of maxillary teeth relative to pterygoid vertical (PTV) plane
大体时间:Through study completion, maximum 18 months
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Distance of maxillary teeth (UR/UL 6, 5, 4, 3, 1) crown tips from PTV plane measured by CBCT. Unit of Measure: Millimeters (mm) |
Through study completion, maximum 18 months
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Angular inclination of maxillary teeth relative to Frankfort horizontal (FH) plane
大体时间:Through study completion, maximum 18 months
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Inclination of long axis of maxillary teeth (UR/UL 6, 5, 4, 3, 1) relative to FH plane measured by CBCT Unit of Measure: Degrees
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Through study completion, maximum 18 months
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Molar relationship at end of distalization phase
大体时间:Through study completion, maximum 18 months
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Clinical assessment of bilateral molar relationship categorized as Class I or cusp-to-cusp upon completion of the distalization phase
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Through study completion, maximum 18 months
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Sagittal skeletal parameters
大体时间:Through study completion, maximum 18 months.
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Angular measurements including SNA, SNB, ANB, and SN-Pog assessed on CBCT-derived lateral cephalometric views. Unit of Measure: Degrees |
Through study completion, maximum 18 months.
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Vertical skeletal parameters
大体时间:Through study completion, maximum 18 months
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Angular and linear measurements including SN-MP, FH-MP, LAFH, TAFH, PFH, LAFH/TAFH ratio, and PFH/TAFH ratio assessed on CBCT-derived lateral cephalometric views Unit of Measure: Degrees and millimeters
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Through study completion, maximum 18 months
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Overjet and overbite
大体时间:Through study completion, maximum 18 months
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Horizontal and vertical overlap of maxillary and mandibular incisors measured clinically at baseline (T1) and end of distalization phase (T2) Unit of Measure: Millimeters (mm)
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Through study completion, maximum 18 months
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Vertical position of mesiobuccal and distobuccal cusps of maxillary first molars
大体时间:Through study completion, maximum 18 months
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Heights of mesiobuccal (MBU R6, MBU L6) and distobuccal (DBU R6, DBU L6) cusps of maxillary first molars relative to Frankfort horizontal plane measured by CBCT Unit of Measure: Millimeters (mm)
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Through study completion, maximum 18 months
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Arch depth and arch perimeter
大体时间:Through study completion, maximum 18 months
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Linear measurements of maxillary arch depth and arch perimeter assessed on CBCT-derived arch models Unit of Measure: Millimeters (mm)
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Through study completion, maximum 18 months
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Axial inclinations of maxillary first molars and first premolars
大体时间:Through study completion, maximum 18 months
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Axial angular measurements of maxillary right and left first molars (UR6, UL6) and first premolars (UR4, UL4) in the axial plane measured by CBCT Unit of Measure: Degrees
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Through study completion, maximum 18 months
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Treatment duration
大体时间:Through study completion, maximum 18 months
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Total active distalization period from appliance insertion to achievement of bilateral Class I or cusp-to-cusp molar relationship. Unit of Measure: Months |
Through study completion, maximum 18 months
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合作者和调查者
调查人员
- 首席研究员:Safaa M Gaballah, Professor、Tanta University
- 研究主任:Shaimaa M Elmarhoumy, professor、Tanta University
出版物和有用的链接
研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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