STUDY GUIDE . Study Guide Block-I First Year BDS Study Guide Block-II First Year BDS Study Guide Block-III First Year BDS Study Guide Block-IV 2nd Year BDS Study Guide Block-V 2nd Year BDS Study Guide Block-VI 2nd Year BDS Study Guide 3rd Year BDS Study Guide Operative Dentistry 4th Year BDS Study Guide Orthodontics 4th Year BDS Study Guide Oral & Maxillofacial Surgery 4th Year BDS Study Guide Prosthodontics 4th Year BDS About RIHS Rawal Institute of Health Sciences (RIHS) was established in 2011, according to the rules and regulations of Pakistan Medical & Dental Council (PM&DC). The RIHS provides quality medical education and healthcare services. Why RIHS? Everything is in one place on our amazing campus in Islamabad.