مقايسه ميانگين ريز نشت اپيكالي دو نوع گوتاپركاي آريادنت و ريادنت در درمان ريشه به روش تراكم جانبي در محيط آزمايشگاهي

Aim: With regard to importance of sealing of gutta percha in the success of endodontic treatment the apical Microleakage of two gutta percha brands (Aria Dent & Dia Dent) was evaluated. Method & Materials: In this experimental study 82 extracted human teeth (single canal, with straight roots, without internal resorption and calcification) were selected. Roots were resected from CEJ and instrumented using the step back technique. The samples were randomly divided in to 4 groups. Group 1: 31 teeth, obturated with Aria Dent gutta- percha. Group 2: 31 teeth, obturated with DiaDent gutta- percha. Group 3: 10 teeth, as a negative control group. Group 4: 10 teeth, as a positive control group. The microleakage was measured using dye penetration and tooth sectioning technique. The deepest linear dye penetration was evaluated by three examiners using stereomicroscope. Then all of the data were analyzed using t-student test. Results: the mean linear dye penetration in the two experimental groups were as follow: Aria Dent 2.67mm. DiaDent 2.63mm.Statistical analysis of results showed no significant difference in apical microleakage between two experimental groups. Conclusion: With regard to the insignificant difference in the sealing ability of the two brands evaluated, AriaDent gutta-percha can be used in laterally condensed obturations instead of Dia Dent gutta percha.