PMC5080460_01
Initial clinical aspect showing the relationship between sharp maxillary canines and lips. Incisal thirds of the canines are projected in the vestibular direction, compromising tooth alignments and the harmony of smile.
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A 26-year-old female patient complained about the elongated and protruded aspect of her maxillary canine (Figure 1).
Frontal view showing the mid sagittal line alteration between the midline of the maxillary and mandibular arches (dotted lines); changes in the long axis of the maxillary central incisors (unbroken lines); disharmony in the height-width ratio of the lateral incisor crowns (crossed arrows); more prominent incisal thirds of the maxillary canines projected in the labial direction with sharp appearance (schematic drawing with curved lines pointing out the sharp aspect of canines).
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After clinical examination and esthetic analysis, some alterations were noted: midline variation between the maxillary and mandibular dental arches; changes in the axial inclination of maxillary central incisors; disharmony between the height-width ratio of dental crowns on the lateral incisors; more pronounced proclined maxillary canines with a sharp aspect, giving her smile a more aggressive appearance and masculine characteristic (Figure 2).
Frontal view of selective enamel recontouring of canine maxillary using a guide in order to reduce the buccal inclination, especially in the incisal third, and obtain an incisal angle more rounded.
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To control this procedure, the guide was done with graphite on each tooth (#1.3 and #2.3) (Figures 3 and 4).
Different view of the guide of selective enamel recontouring of canine maxillary. (a) Marking on the most prominent third of the buccal face of tooth #13. (b) An approximate view of the teeth after enamel recontouring. (c) Marking on the most prominent third of the buccal face of tooth #23. (d) An approximate view of the teeth after enamel recontouring. Note on the proximal saliencies, greater wear was performed in the cervical direction in order to prevent them from remaining more projected and therefore outstanding in the smile.
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To control this procedure, the guide was done with graphite on each tooth (#1.3 and #2.3) (Figures 3 and 4).
Final aspect after performing the finishing and polishing procedures, in which more harmonious and rounded contours, more in keeping with the patient's face and gender, may be observed.
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In the smile photograph, the obtainment of more harmonious shapes and sizes of maxillary canines can be observed (Figure 5).