Alveolar Bone Loss

• College of Dentistry, Dar AlUloom University — Riyadh, Saudi Arabia

• Department of Periodontics, Faculty of Dentistry, Cairo University — Cairo, Cairo Governorate, Egypt

• Cairo University — Giza, Cairo Governorate, Egypt

• Cairo University — Cairo, Cairo Governorate, Egypt

• Faculty of Dentistry, Cairo University — Cairo, Cairo Governorate, Egypt

• Faculty of Dentistry- Horus University in Egypt — Damietta, New-Damietta, Egypt

Not specified

• Fayoum University — Al Fayyum, Egypt

• Pontificia Universidade Católica do Rio Grande do Sul — Porto Alegre, Rio Grande do Sul, Brazil

Not specified