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临床试验/NCT00972556
NCT00972556Unknown不适用

Comparison of Mineral Trioxide Aggregate and 20% Formocresol in Pulpotomized Human Primary Molars :A Long-Term Follow-Up Study

National Taiwan University Hospital1 个研究点 分布在 1 个国家目标入组 200 人开始时间: 2009年9月最近更新:
适应症
干预措施
相关药物

试验速览

阶段
不适用
入组人数
200
试验地点
1
主要终点
clinically and radiographically outcomes

研究概览

简要总结

This prospective clinical randomized controlled trial is established to compare the clinical, radiographic, and histological treatment outcomes between MTA and FC in pulpotomized human primary molars at 6, 12, 18, 24 month post-treatment and to test the hypothesis that Gray Mineral Trioxide Aggregate (GMTA) is a viable alternative to Diluted (20%) Formocresol (DFC) in pulpotomies treatment of human primary molars.

详细描述

  1. Background: Formocresol (FC) is the most widely used pulpotomy medicament in the primary dentition. There are concerns associated with this medicament, primarily the carcinogenicity of the chemical and internal resorption of the treated tooth. Recently, Mineral Trioxide Aggregate (MTA) has been suggested with preliminary studies showing promising results.
  2. Study design: This is a prospective clinical randomized controlled trial (RCT), which will be performed at Department of Dentistry, National Taiwan University Hospital, to compare the treatment outcomes between MTA and FC in pulpotomized human primary molars and to evaluate whether GMTA is a viable alternative to DFC in pulpotomies treatment of human primary molars.
  3. Hypotheses:
  • Null Hypotheses: there is no clinical, radiographic, or histological difference between GMTA and DFC at 6, 12, 18, 24 month post-treatment when used as a pulp dressing agent in pulpotomized primary molars.
  • Alternative Hypotheses: There is a statistically significant difference between GMTA and DFC as a pulpotomy agent. GMTA shows clinical and/or radiographic and/or histological success as a dressing material following pulpotomy in primary human molars and may be a suitable replacement for DFC in primary molar pulpotomy.
  1. Specific Aims:
  • The primary aims of this investigation are:
  1. Compare the clinical and radiographic results of GMTA with DFC pulpotomies on vital human primary molars at 6, 12, 18, and 24 months post-operatively.
  2. Assess intraradicular histological changes of the pulpal tissue and root dentin following pulpotomy treatment with GMTA or DFC.
  • The secondary aims of this investigation are:
  1. Assess the outcome of GMTA by multiple operators that have been calibrated to the methods of mixing and placing the material.
  2. Assess whether sex, tooth type, arch, and age of patient at time of treatment influence the overall success rate of GMTA pulpotomies.
  3. Compare the radiographic success of the two materials based on both the traditional radiographic assessment criteria adopted by the American Academy of Pediatric Dentistry (AAPD) and the alternative radiographic success criteria adopted by Zurn et al. 2000.
  4. To serve as a basis for future research in the comparison of GMTA and DFC pulpotomies. This will include larger sample size, longer follow-up periods, and a collaborative study with UM group (Prof. Jan C. Hu).

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
Double (Participant, Outcomes Assessor)

入排标准

年龄范围
30 Months 至 10 Years(Child)
性别
All
接受健康志愿者

入选标准

  • Primary first or second molars with normal pulp, reversible, or irreversible pulpitis, that have vital carious pulp exposures due to caries and whose pulp bled upon entering the pulp chamber.
  • Teeth in which hemostasis could be achieved with pressure of a saline dampened sterile cotton pellet prior to medicament/material placement.
  • No clinical symptoms or evidence of pulp degeneration, such as excessive bleeding from the root canal, history of swelling, mobility, or sinus tracts.
  • Patients with percussion sensitivity or spontaneous and persistent pain but where hemostasis could be achieved with pressure of sterile cotton pellet.
  • No radiographic signs of internal or external root resorption, inter-radicular and/or periapical bone destruction, or furcation radiolucency.
  • No more than one-third physiologic root resorption has occurred.
  • Teeth had not previously been pulpally treated.
  • Teeth deemed to be restorable with posterior stainless steel crowns.

排除标准

  • Not present

研究组 & 干预措施

GMTA

Experimental

干预措施: Gray Mineral Trioxide Aggregate (GMTA) (Drug)

20% FC

Active Comparator

干预措施: Diluted (20%) Formocresol (DFC) (Drug)

结局指标

主要结局

clinically and radiographically outcomes

时间窗: 6, 12, 18, and 24 months

次要结局

  • histological outcome(when the subjective tooth physically exfoliates from oral cavity)

研究者

申办方类型
Other
责任方
Principal Investigator
主要研究者

National Taiwan University Hospital

Department of Dentistry

National Taiwan University Hospital

研究点 (1)

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