Tooth staining or discoloration refers to a condition in which yellow, brown, or darker patches of more enamel appear on the teeth. This condition may be caused by a change in the color of the upper layer of the tooth or the tooth enamel. Or because there is a more fundamental and deeper problem in the underlying layers.
Ministry of Higher Education and Scientific Research
University of Babylon
University of Baghdad
University of Technology
University of Diyala
University of Mosul
University of Kufa
University of Basrah
University of Anbar
Tikrit University
University Of Al-Qadisiyah
Al-Nahrain University
University of Kirkuk
Mustansiriyah University
University of Misan
University of Thi-Qar
University of Wasit
University of ITC
Al-Iraqia University
Al-Muthanna University
Al-Qasim Green University
Middle Technical University
University Of Fallujah
Al-Furat Al-Awsat Technical University
Southern Technical University
University Of Samarra
Jabir ibn Hayyan Medical University
Al-Karkh University Of Science
Ninevah University
Basrah University for Oil and Gas
University of Al-hamdaniya
Northern Technical University
Ibn Sina University
The Great Emam University College
University Of Sumer
University Of Telafer
Al-Farahidi University
