Document Type : Original Article
Authors
1 Master degree in dental public health and community dentistry- Cairo University, Dental specialist at Dental Administration in Al- Qassim Region
2 Saudi Board In Restorative Dentistry, Director of Dental Administration in Al- Qassim Region& Director of Regional Dental Center of Qassim Region, Head of Saudi Dental Society in Al- Qassim Region. & SBRD program Director in Al - Qassim Region
3 Bachelor Degree of Dental Medicine, Dentist at Dental Administration in Al- Qassim Region
Abstract