Sealing Ability of Four Calcium Containing Cements used for Repairing Furcal Perforations in Primary Molars: An in vitro study.

AIM: The aim of this study was to compare the sealing ability of mineral trioxide aggregate (MTA), Portland cement (PC), Biodentine(TM) and Tech biosealer in repairing furcal perforations in primary molars using the fluid-filtration technique. MATERIALS AND METHODS: Fifty freshly extracted maxillary second primary molars were sectioned horizontally at the furcation region to create dentin disks of 1.5 mm (+ 0.1 mm) thickness. Five disks were not perforated and served as negative controls. In the remaining 45 disks, furcation perforations were prepared. Five disks did not receive furcation repair and served as positive controls. The remaining 40 disks were then randomly divided into four equal groups (10 disks in each group). Perforations were repaired with: MTA, PC, Biodentine(TM) or Tech Biosealer. The sealing ability of the tested materials was evaluated by measuring microleakage for each disk after four different storage periods: 24-hour, 1-month, 6-month and 1-year storage using fluid-filtration. Comparisons between the four materials and the four time periods were done using the two-way analysis of variance and the Scheffe multiple comparisons test. RESULTS: There was no significant difference between the mean microleakage values obtained in the four tested materials after 24 hours, 1, 6 month and 1 year. However, microleakage values for each individual material were significantly higher at 24 hours than at the other time intervals. CONCLUSION: Mineral trioxide aggregate, PC, Biodentine(TM) and Tech biosealer showed similar capabilities in sealing the furcal perforations of the primary molars, where the sealing ability improved over time for each individual material.

Sodium Hypochlorite Versus Formocresol and Ferric Sulfate Pulpotomies in Primary Molars: 18-month Follow-up.

PURPOSE: This study's purpose was to compare the clinical and radiographic success rates of 5.25 percent Sodium Hypochlorite (NaOCl) pulpotomies to Formocresol (FC) and Ferric Sulfate (FS) in decayed primary molars. METHODS: Eighty-one primary molars, randomly divided into three groups, were treated with one of three different pulpotomy materials; NaOCl, FC and FS. The outcomes of the different groups were assessed clinically and radiographically every six months over 18 months. Chi-square test was used to detect differences in outcome measures in all groups. RESULTS: At six months, clinical and radiographic success rates were 100 percent for each group (27/27). At 12 months, clinical success was 100 percent (24/24), 96 percent (24/25), and 95.7 percent (22/23) for NaOCl, FC, and FS respectively. The radiographic success was 95.8 percent (23/24) for NaOCl group, and 100 percent for FC (25/25), and FS (23/23). At 18 months, the clinical success was 83.3 percent (20/24), 96 percent (24/25), and 87 percent (20/23) for NaOCL, FC, and FS respectively. The 18 month radiographic success was 91.7 percent (22/24), 100 percent (25/25), and 95.7 percent (22/23) for NaOCl, FC, and FS respectively. No significant differences were found in clinical or radiographic outcomes between the three groups at six, 12 and 18 months. CONCLUSION: The three pulpotomy medicaments yielded similar outcomes.