Original Research
Volume 2022, Article ID 22092409, 7 pages
Comparative evaluation of curing light intensity on depth of cure of bulk fill and conventional composites- in vitro study
Sriram Sankar 1 , Hema Sathya B 2 , Bharath N 3 , Senthil Nathan N 4 , Prem Kumar E 5
1,2,3 Department of Conservative Dentistry, Adhiparasakthi Dental College, and Hospital, Melmaruvathur Chennai. 4,5Department of Conservative Dentistry, Mahatma Gandhi Post Graduate Institute, Pondicherry.
Address for Correspondence:
Dr S Sriram,
Department of Conservative Dentistry & Endodontics, Adhiparasakthi Dental College, Melmaruvathur, Chennai
Phone No: 9962075474
Email: drsriram@apdch.edu.In
ABSTRACT
Introduction
Due to its superior looks and qualities, direct composite resin restorations have grown in popularity in modern dentistry treatment. The posterior bulk fill composites Filtek TM Bulk Fill Posterior and X-tra fil are said to achieve a 5 mm depth of cure with good strength. The depth of cure of commercially available packable bulk fill composites has not been adequately studied in the literature.
Aim
To determine how different curing light intensities affect the curing depth of bulk fill and traditional composite.
Materials and methods
Two packable bulk fill (Filtek Bulk Fill and X-tra fil) composites and a conventional composite (Tetric N Ceram) were used in the study and were divided into three groups and were cured using two light cure units having different light intensities (LED and QTH units). A total of 120 composite specimens were prepared. Depth of cure was evaluated using B/T ratio of Vickers hardness number.
Results
The hardness values of top and bottom surface values ranged between 49.9 to 99.7 VHN. The Filtek bulk fill composite cured with LED unit showed the maximum and B/T ratio which was significantly higher than Tetric N Ceram composite cured with QTH unit which showed the least B/T ratio (p<0.05)
Conclusion
The depth of cure of bulk fill composites is significantly influenced by the type of curing light used. The bulk fill composites employed in this investigation displayed a suitable B/T ratio of more than 0.80 suitable for clinical application.
Keywords: Bulk fill composites, Depth of cure, Vickers micro-hardness, Curing light intensity, B/T ratio
Financial support and sponsorship
Nil
Conflicts of interest
There are no conflicts of interest.
How to cite: Sriram S, Hema Sathya B, Bharath N, Senthil N, Prem Kumar E, Comparative evaluation of curing light intensity on depth of cure of bulk fill and conventional composites-in vitro study. Int J Endodnd Rehabil Volume 2022, Article ID 22091209, 7 pages.
