title: The "three-cornered space" pitfall in adult treatment.
mesh_terms: D000328:Adult; D005881:Gingiva / Q000033:anatomy & histology; D006801:Humans; D007180:Incisor / Q000033:anatomy & histology; D008310:Malocclusion / Q000628:therapy; D014087:Tooth Movement Techniques / Q000009:adverse effects*