Implant is a reliable oral rehabilitation treatment. Information from research has provided the basis for the clinical practice of dental implants. Not only knowledge and skill are required, the use of advance imaging technology as well as experience of operator is of paramount importance in the success of implant dentistry.Implant tooth replacement should be considered as the treatment of choice when maxillary anterior teeth are congenitally missing in adolescence. Orthodontic therapy prior to the implant surgery should be performed during growth and development of the jaws. Its advantages...