Ali Alharbi

Ali Alharbi

Security Forces Hospital
Saudi Arabia

Title: Congenitally missing teeth in orthodontic treatment


Alharbi has graduated from King Saud University with a BDS at 1994, and completed his Orthodontic speciality SBO-Ortho from the Saudi Commision for Health Specialties in Riyadh, Saudi Arabia. Working as an Orthodontic Consultant at the Security Forces Hospital, dental department. Envolved in Saudi Board Residents training, has 2 publications and involved in a part time practice at the private sector.


One of the challenges the orthodontist might face in the daily practice, patients with congenitally missing teeth with anterior and posterior spaces. The case is known as hypodontia, it could be mild to moderate (few teeth) or severe (more teeth to complete absence). In the anterior region, the most commonly are the maxillary lateral incisors or the mandibular central incisor, and in the posterior region the mandibular or maxillary second premolars. The treatment strategy will be either to close the space or open it, and replace the missing teeth with different modalities. In the anterior spaces a resin bonded bridge, a conventional fixed partial denture, implants or transplantation can be used when decided to open the space, or using canines to replace maxillary lateral incisors when decided to close the spaces. For the posterior spaces the choice is to upright the first molars and use conventional fixed partial dentures or implants. Each decision has its criteria, indications, contraindications, advantages and disadvantages. The treatment planning needs good interdisciplinary teams work with good diagnosis tools (study models, radiographs, photos and diagnostic wax up).