@article {georgopoulou2008periapical,
	title = {Periapical status and quality of root canal fillings and coronal restorations in a Greek population.},
	journal = {Quintessence international},
	volume = {39},
	number = {2},
	year = {2008},
	author = {Georgopoulou, Maria K and Spanaki-Voreadi, Aristea P and Pantazis, Nikos and Kontakiotis, Evangelos G and Morfis, Andreas S}
}
