NCT00802256.

Trial name or title	Comparative Evaluation of Pulpotomized Primary Molars With Mineral Trioxide Aggregate and New Endodonthic Cement
Methods	"Forty patients are selected randomly. Each patient has at least 2 teeth which require pulpotomy treatment. After removing of carious teeth by a low speed round bur and pulp exposure, roof of pulp chamber is removed completely by a high speed 008 fissure bur. Life tissues of pulp are removed by sharp excavator and rinsing with normal saline. Hemostat is achieved and cavity will be cleaned by 0.5% hypo chlorate solution. MTA or NEC material is mixed according to manufacturer instruction and will be placed in pulp chamber and over pulpal canal orifices for at least 1 mm. The light cure glass ionomer is also mixed according to manufacturer instruction and is placed over the A or B material and cured for 40 minutes. The treated tooth will be restored with a stainless steel crown or amalgam filling material."
Participants	Inclusion criteria Vital pulp exposure of teeth with caries or trauma No clinical signs and symptoms like pain, inflammation No radiographic signs and symptoms like: internal resorption, external resorption, furcation involvement, pulp canal obliteration The restorable tooth No dental treatment contraindication 4 to 8 years (child) Exclusion criteria Systemic diseases Existence of pain, inflammation or sinus tract No patient compliance
Interventions	Experimental A: teeth that are treated with Mineral Trioxide Aggregate (MTA) material Experimental B: teeth that are treated with new Endodontic Cement (NEC) material
Outcomes	Primary outcome measures: clinical features and radiographic examination Time frame: six months and one year
Starting date	October 2008
Contact information	Contact: Fatemeh Shekarchi, student
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