Evaluation of Fracture Resistance and Microleakage of Various Direct Composite Inlay Materials Using Two Different Curing Chambers: An In-Vitro Study Aashish Handa1,*, Bal C.S.2, Sharma Handa Rajni3 1Senior Lecturer, Dept. of Conservative Dentistry, Sri Guru RamDas Institute of Dental Sciences & Research, Amritsar, (Punjab) 2Professor and Head, Dept. of Conservative Dentistry, Sri Guru RamDas Institute of Dental Sciences & Research, Amritsar, (Punjab) 3Consultant Pedodontist, Dept. of Conservative Dentistry, Sri Guru RamDas Institute of Dental Sciences & Research, Amritsar, (Punjab) *Address for Correspondence: Dr. Aashish Handa, Dept. of Conservative Dentistry, Sri Guru RamDas Institute of Dental Sciences & Research, Amritsar, (Punjab), E-mail: aashish_handa2000@yahoo.co.in
Online published on 18 May, 2016. Abstract Study evaluated the effect of different post-curing techniques on the fracture resistance and microleakage of direct composite inlays. 520 extracted non-carious mandibular molar teeth were selected; composite inlay cavities were prepared in 480 teeth and restored using Surefil packable restorative resin and Esthet-X micro matrix composite restorative resin and cured with three different light curing sources namely QTH light cure unit, Liwa light cure chamber and Photopol light cure chamber. 20 intact teeth and 20 teeth with composite inlay cavity prepared but unrestored were evaluated for fracture resistance. Half of restored teeth were evaluated for microleakage using dye penetration under stereomicroscope at 30 X, while the remaining half of restored teeth were tested under instron machine for evaluating fracture resistance. It was noted that the additional curing significantly increased the fracture resistance and decreased the microleakage of composite inlays fabricated with both the composite materials as compared to those of QTH light cure only. Top Keywords Composite inlay, post curing, polymerization shrinkage. Top |