Abnormality in the Morphogenesis of Tooth Development and Relationship with Orthodontic Deformities and Treatment Approaches

Figure 7

Development of the lower dental arch. (a) Initial state. (b) After extraction of temporary first molars. (c) Placed lingual arch. (d) Eruption of the lower right first and second premolars and left first premolar—double tooth. (e) Spontaneous eruption of the lower left second premolar, after extraction of tooth 34. (f) Complete eruption of the lower left second premolar.

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