1. Oral Medicine Department, Faculty of Dentistry, Universitas Syiah Kuala, Darussalam, Banda Aceh, Aceh, Indonesia.
2. Oral Biology Department, Faculty of Dentistry, Universitas Syiah Kuala, Darussalam, Banda Aceh, Aceh, Indonesia.
3. Department of Dental Public Health, Faculty of Dentistry, Universitas Syiah Kuala, Darussalam, Banda Aceh, Aceh, Indonesia.
4. Department of Conservative Dentistry, Faculty of Dentistry, Universitas Sumatera Utara, Medan, Sumatera Utara, Indonesia.
5. Department of Conservative Dentistry, Faculty of Dentistry, Universitas Muslim Indonesia, Makasar, Sulawesi Selatan, Indonesia.
6. Department of Protodonsia, Faculty of Dentistry, Universitas Muslim Indonesia, Makasar, Sulawesi Selatan, Indonesia.