J Korean Acad Prosthodont.  2021 Apr;59(2):238-247. 10.4047/jkap.2021.59.2.238.

Prosthetic rehabilitation of an oligodontia patient with atrophic maxilla

• Chi SS
• Kim YJ
• Kang HG
• Ko KH
• Huh YH
• Park CJ
• Cho LR

• KMID: 2515226
• DOI: http://doi.org/10.4047/jkap.2021.59.2.238

Abstract

Congenital tooth agenesis is the most common developmental dental anomaly, of which oligodontia is defined as the absence of six or more permanent teeth, except the third molars. Tooth agenesis causes malocclusion, alveolar atrophy, aesthetic and psychosocial problems. This clinical report describes a multidisciplinary treatment for a patient diagnosed as oligodontia, who exhibited absence of 14 permanent teeth, atrophy of maxillary alveolar bone, and mandibular protrusion. Restoration space was secured and tooth axis was improved by the extraction of deciduous teeth and orthodontic treatment. However, edge-to-edge bite of posterior teeth and arch dimension discrepancy due to atrophic maxilla was remained. To restore the aesthetics and functionality, implant retained prosthesis was planned. Considering minimal bone grafts, location and number of dental implants and prostheses design were determined. Through the gradual adjustment of provisional restoration, the appropriate centric and eccentric occlusion was reflected into a definitive prosthesis. Currently, stable functional results were attained, however, regular follow up and maintenance care over lifetimes should be performed.

Keyword

Alveolar bone atrophy; Congenital missing teeth; Dental implant; Oligodontia