The scope of this study is to compare the sealing capability of experimental tricalcium phosphate cement versus Biodentine and Mineral Trioxide Aggregate used for furcation perforation repair. Methodology: Ninety six extracted human molars were perforated in furcation area and unsystematically divided into four groups relative to the furcation repair material into: experimental tricalcium phosphate (n=30), Biodentine (n=30), MTA (n=30) while the fourth group of samples was left unrepaired as control (n=6). Each group was further subdivided into three subgroups according the evaluation period as 1 week, 1 month and 3 months. Samples were subjected to dye penetration test and values calculated using a stereomicroscope with magnification (25X). Kruskal Wallis test was utilized to show the difference between more than two groups in non-related samples. Results: Biodentine group showed statistically significant least dye absorbance; statistically there wasn't a significant difference between the Experimental material and MTA Conclusion: The experimental tricalcium phosphate provides an easy handling and quick setting of repair material with comparable sealing ability to MTA.