As aesthetics advance in modern dentistry, people's expectations of their smiles become ever higher. Microdontia or conoid tooth, which refers to teeth smaller than normal, is one of the abnormalities that causes major aesthetic complaints due to its characteristics. Conoid teeth have a prevalence of 0.6 to 9.9%, with conical upper lateral teeth affecting approximately 55,000 people, with women being more susceptible than men. Many factors must be considered when restoring anterior teeth, depending on patient expectations and dental practice. The direct composite resin technique has stood out for providing aesthetic benefits, preserving tooth structure, being performed in a single consultation, being cheaper and not requiring any laboratory process. The objective of this study was to report a clinical case of aesthetic rehabilitation in a conoid tooth in the upper left lateral incisor with composite resin restoration using the direct technique. Clinical planning is essential for choosing the technique and restorative material to be used. Despite the various techniques proposed for the treatment of conoid lateral incisors, the aesthetic reanatomization with a direct veneer of composite resin, with diagnostic waxing, used in this study, was effective and inexpensive, allowing a minimally invasive treatment and possible posterior adjustments, enabling the restoration of self-esteem and the harmony of the patient's smile.