Congenitally Missing Maxillary Lateral Incisors: Update on the Functional and Esthetic Parameters of Patients Treated with Implants or Space Closure and Teeth Recontouring

Núbia Inocencya Pavesi Pini1, Luciana Manzotti De Marchi2, Renata Corrêa Pascotto3, *
1 Department of Restorative Dentistry, State University of Campinas, Campinas, Brazil
2 Department of Dentistry, University Center of Maringá - UNICESUMAR, Maringá, Brazil
3 Department of Dentistry, State University of Maringá, Maringá, Brazil

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© Pini et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.

* Address correspondence to this author at the Department of Dentistry, State University of Maringá, Av. Mandacaru 1.550, 87080-000 – Maringá, PR, Brazil; Tel: (55) 44 99820215; Fax: (55) 44 30319051; E-mail:


Maxillary lateral incisor agenesis (MLIA) is a condition that affects both dental esthetics and function in young patients, and represents an important challenge for clinicians. Although several treatment options are available, the mesial repositioning of the canines followed by teeth recontouring into lateral incisors; or space opening/maintenance followed by implant placement have recently emerged as two important treatment approaches. In this article, the current and latest literature has been reviewed in order to summarize the functional and esthetic outcomes obtained with these two forms of treatment of MLIA patients in recent years. Indications, clinical limitations and the most important parameters to achieve the best possible results with each treatment modality are also discussed. Within the limitations of this review, it is not possible to assert at this point in time that one treatment approach is more advantageous than the other. Long-term followup studies comparing the existing treatment options are still lacking in the literature, and they are necessary to shed some light on the issue. It is possible, however, to state that adequate multidisciplinary diagnosis and planning are imperative to define the treatment option that will provide the best individual results for patients with MLIA.

Keywords: Agenesis, composite resin, dental agenesis, dental implants, maxillary lateral incisors, orthodontic treatment.