Dr Ankush Kumar Sangra is a Senior Resident in the Department of Conservative Dentistry and Endodontics at All India Institute of Medical Sciences Jammu. He completed his BDS from Government Dental College Jammu and MDS in Conservative Dentistry and Endodontics from Government Dental College Srinagar. He conceptualized this book and contributed extensively to clinical case documentation, radiographic interpretation, figure planning, manuscript drafting, and clinical analysis, with a special interest in the management of separated instruments and complex endodontic procedures.