Comparison of Mineral Trioxide Aggregate (MTA) and 20% Formocresol (FC) in Pulpotomized Human Primary Molars
NCT ID: NCT00972556
Last Updated: 2012-08-23
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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UNKNOWN
NA
200 participants
INTERVENTIONAL
2009-09-30
2014-07-31
Brief Summary
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Detailed Description
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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.
4. 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).
Conditions
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Keywords
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
DOUBLE
Study Groups
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GMTA
Gray Mineral Trioxide Aggregate (GMTA)
Once hemorrhage from the pulp chamber is under control using direct pressure of a sterile cotton pellet, pulp stumps are covered with a MTA paste, obtained by mixing 0.2g GMTA powder with sterile water in a powder to liquid ratio of 3:1 in weight. The GMTA will be then immediately covered with a zinc-oxide eugenol base (IRM) material.
20% FC
Diluted (20%) Formocresol (DFC)
After the pulp hemostasis is achieved with direct pressure of a sterile cotton pellet, a sterile cotton pellet dampened with 20% DFC will be placed in contact with the pulp for 5 minutes, followed by the immediate placement of a zinc-oxide eugenol base (IRM) material.
Interventions
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Gray Mineral Trioxide Aggregate (GMTA)
Once hemorrhage from the pulp chamber is under control using direct pressure of a sterile cotton pellet, pulp stumps are covered with a MTA paste, obtained by mixing 0.2g GMTA powder with sterile water in a powder to liquid ratio of 3:1 in weight. The GMTA will be then immediately covered with a zinc-oxide eugenol base (IRM) material.
Diluted (20%) Formocresol (DFC)
After the pulp hemostasis is achieved with direct pressure of a sterile cotton pellet, a sterile cotton pellet dampened with 20% DFC will be placed in contact with the pulp for 5 minutes, followed by the immediate placement of a zinc-oxide eugenol base (IRM) material.
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* 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.
Exclusion Criteria
30 Months
10 Years
ALL
Yes
Sponsors
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University of Michigan
OTHER
National Taiwan University Hospital
OTHER
Responsible Party
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National Taiwan University Hospital
Department of Dentistry
Principal Investigators
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Yuan-Ling Lee, PhD
Role: PRINCIPAL_INVESTIGATOR
Department of Dentistry, National Taiwan University Hospital
Hsiao-Hua Chang, MS
Role: STUDY_CHAIR
Department of Dentistry, National Taiwan University Hospital
Locations
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Department of Dentistry, National Taiwan University Hospital
Taipei, , Taiwan
Countries
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Central Contacts
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Facility Contacts
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Yuan-Ling Lee, PhD
Role: primary
Hsiao-Hua Chang, MS
Role: backup
Other Identifiers
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200905028R
Identifier Type: -
Identifier Source: org_study_id