1. Department of Prosthodontics, Faculty of Dentistry, Hasanuddin University, Makassar, South Sulawesi, Indonesia.
2. Department of Civil Engineering, Faculty of Engineering, Hasanuddin University, Makassar, South Sulawesi, Indonesia.
3. Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Hasanuddin University, Makassar, South Sulawesi, Indonesia.
4. Department of Prosthodontics, Faculty of Dentistry, Mulawarman University, Samarinda, East Kalimantan, Indonesia.