Laser Verses Conventional Circumferential Supracrestal Fiberotomy in Orthodontic Extrusion for Crown Lengthening: A Randomized Controlled Clinical Trial
试验速览
- 阶段
- 不适用
- 入组人数
- 20
- 试验地点
- 1
- 主要终点
- Stability of amount of healthy tooth structure exposed
研究概览
简要总结
The aim of this study is to the evaluate the stability of the amount of healthy tooth structure exposed after laser versus conventional technique of fiberotomy during orthodontic extrusion.
详细描述
Parallel groups, two arm, superiority Randomized Controlled Clinical Trial, with 1:1 allocation.
PICO:
Population: patients with endodontically treated teeth and short clinical crown that require crown lengthening in the esthetic zone Intervention: laser fiberotomy with orthodontic extrusion Control: conventional fiberotomy using blade with orthodontic extrusion
Outcomes:
Primary outcome: Stability of the mount of healthy tooth structure exposed.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 50 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Age between 18 and 50 years old
- •Teeth in the esthetic zone
- •Restorable teeth with successful endodontic treatment
- •Adjacent teeth with clinical attachment of at least two-thirds of the root length, thus permitting adequate support for orthodontic movement
- •Crown root ratio after extrusion of the needed ferrule amount not less than 1:1
排除标准
- •Patients with bad oral hygiene or Periodontally affected teeth
- •Uncontrolled diabetic patients
- •Pregnant females
- •Medications that could affect tooth movement (bisphosphonate) radiation therapy less than 2 years
- •Moderate-to-heavy daily smokers (who report consuming at least 11 cigarettes/day)
- •Teeth with periapical inflammation, ankylosis or vertical root fracture
- •Teeth with probability of furcation exposure after extrusion.
- •The level of the root is 3 mm or more apical to the level of the bone
研究组 & 干预措施
conventional circumferential supracrestal fiberotomy
- The amount of tooth that need to be extruded will be measured Bonding brackets slot 0,022"x0.028" Roth prescription on piggyback for the tooth with (0.016". x 0.022 ") stainless steel main arch wire and 0.0014" nickel titanium auxiliary.
• Fiberotomy After 2 days of bonding, local anaesthetic solution will be administrated. The depth of the fibrotomy should be equal to the amount of tooth that need to be extruded.
- supracrustal fibrotomy will be performed using 15 c blade (Carvalho, Bauer et al. 2006)
干预措施: conventional circumferential supracrestal fiberotomy (Procedure)
laser circumferential supracrestal fiberotomy
- The amount of tooth that need to be extruded will be measured
- Bonding brackets slot 0,022"x0.028" Roth prescription
- piggyback for the tooth with (0.016". x 0.022 ") stainless steel main arch wire and 0.0014" nickel titanium auxiliary.
• Fiberotomy
- After 2 days of bonding, local anaesthetic solution will be administrated.
- The depth of the fibrotomy should be equal to the amount of tooth that need to be extruded.
- A diode laser of 980 nm wavelength will be used The laser tip will be inserted, and incision will be extended around tooth circumference with the system configured to a continuous wave with the movement of the laser tip in an up and down stroking movement The laser tip will be moved in a circumferential manner taking care that all the fibers are lysed.
干预措施: laser circumferential supracrestal fiberotomy (Procedure)
结局指标
主要结局
Stability of amount of healthy tooth structure exposed
时间窗: 8 weeks after retention.
Amount of healthy tooth structure exposed: This is measured from the 6 guide marks in the acrylic stent around the extruded teeth to the healthy tooth structure using UNC periodontal probe in millimeters.
次要结局
- Stability of gingival Margin(8 weeks after retention.)
- Stability of the alveolar bone(8 weeks after retention.)
- Rate of tooth extrusion(8 weeks after retention.)
- Sulcus depth(8 weeks after retention.)
- Post operative pain(8 weeks after retention.)
研究者
roquaiya eldardear
Principal Investigator
Cairo University