Sealing Ability of Biodentine as a Retrograde Filling Materials (A Comparative in vitro study)

Wiaam M.O. AL-Ashou Dept of Conservative Dentistry BDS, MSc, (Lect.) College of Dentistry, University of Mosul ةصلاخلا ةـثولملا داوـملا ذاـفن عـنمت نا بـجي ةمدختـسملا ةداـملا ناو .اهلـشف بابـسا مـها نـم وـه يـمقلا مـتخلا ةـمئلام مدـع نا :ةـمدقملا رذـجلا ةـمقل ةوـشحك Biodentine لا ةردـق مـييقتل ناك ةـساردلا هذـه نـم ضرـغلا نا :فادـهلاا .رذـجلاب ةـطيحملا ةجـسنلاا نـم ةداـمب هوـشحو هـتئيهت و دـعب عوـلقم نـس )34( مادختـسا مـت :لـمعلا قـئارط و داوـملا .GIC و MTA لا عـم جـئاتنلا ةـنراقمو ةدامب اهوـشح مـت ىـلولاا .عـيماجم ثلاـث ىـلا اهميـسقت مـت . مـلم 3 قـمع ىـلا اـهرفحو رذـجلا ةـمق عـطق مـت Gatta percha. روذـجلا يـلط مـت .ةـبجوملاو ةبلاـسلا ةرطيـسلا ىـتعومجم نـع لاـضف GIC لا ةداـمب ةـثلاثلاو MTA لا ةداـمب ةـيناثلاو Biodentine قمع باـسحو روذـجلا عـيطقت مـت , :1زـيكرتب Fuchsine ــلا ةداـمب تاـنيعلا رـمغ دـعبو .رذـجلا ةـمق ادـع رـفاظلاا غـبصب ةـفاك Biodentine لا ةداـم نا جـئاتنلا ترـهظا :جـئاتنلا .اـيئاصحا تاـنايبلا لـيلحت مـت . :40 رـيبكت ةوـقب رـهجملا تـحت ةـغبصلا قارـتخا يـتدام نـيب يوـنعم قرـف كاـنه نـكي مـلو رذـجلا ةورذ ةوـشحل مدختـست اـمدنع يرـهجملا بيرـستلا عـنم ىـلع رـبكا ةردـق اـهل لازـ تام نـكلو ,رذـجلا ةورذـ ل ةوـشحك GIC و MTA يـ تدام نـم لـضفا Biodentine ةداـم نا :تاجاتنتـسلاا .GICو MTA .يـحلا مـسجلا يـف هتـسارد ىـلا ةـجاح كاـنه ABSTRACT Aim: Inadequate apical seal is the major cause of endodontic failure, the root end filling material used should prevent ingress of potential contaminants from periapical tissue. Aims: The purpose of this in vitro study was to evaluate the sealing ability of Biodentine (Septodent) when used as a root-end filling material and to compared the result with that of White Mineral Trioxide Aggregate ( MTA) and Glass Ionomer Cement (GIC). Materials and Methods: The root canals of (34) extracted human teeth were instrumented and obturated with gatta percha. Apexes were resected and cavities were prepared to 3mm depth. Teeth were divided randomly into three groups(n=10): first group was retrofilled with Biodentine, second with MTA, third group with GIC, and positive (n=2) and negative (n=2) control groups. Nail varnish was applied to all root surfaces except the tip of the root. Following immersion in basic fuchsine 1% , the roots were sectioned longitudinally and depth of dye penetration was evaluated by stereomicro-scope at 40X magnification. Data were analyzed using one way ANOVA and Duncan›s multiple range test at P< 0.05. Results: In this study, biodentine was determined to be superior than MTA and GIC prevention apical microleakage when used as root-end filling. No statistical significant difference was observed between MTA and GIC. Conclusions: under the conditions of this in vitro study, despite some variation, Biodentine provides a better seal than MTA and GIC when used as retro filling, but along term in vivo study is required to prove it