| Cover and Content | |
| 1-5 |
| The role and significance of some salivary amino acids in periodontal diseases, including plaque-induced gingivitis—a literature review | |
| Sirma Angelova, Ayshe Salim, Yoana Kiselova-Kaneva, Diana Ivanova, Radosveta Andreeva-Borisova, Stefan Peev | 7-17 |
| Oral manifestations in patients with Covid-19 – literature review | |
| Puyan Heydari, Vladimir Panov | 18-23 |
| Alveolar ridge preservation using free gingival grafts. A review article | |
| Ralitsa Yotsova, Stefan Peev, Tihomir Georgiev | 24-30 |
| Alveolar ridge preservation using dense polytetrafluoroethylene membranes. A review article | |
| Ralitsa Yotsova, Stefan Peev, Tihomir Georgiev | 31-38 |
| Oral lichen planus—clinical characteristics and diagnosis. A review | |
| Irena Georgieva | 39-44 |
| Invasive dental treatment in patients with type 2 diabetes | |
| Alexander Georgiev, Miglena Balcheva | 45-48 |