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Crowded teeth

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1 Staufer, Kirsten, and Helga Landmesser. “Effects of Crowding in the Lower Anterior Segment - a Risk Evaluation Depending upon the Degree of Crowding.” Journal of Orofacial Orthopedics, vol. 65, no. 1, pp. 13–25.

2 Sven Helm & Poul Erik Petersen (1989) Causal relation between malocclusion and periodontal health, Acta Odontologica Scandinavica, 47:4, 223-228, DOI: 10.3109/00016358909007705

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