Some useful information regarding interrelationships among sucking habits and atypical swallowing patterns can be gained in countries where children are permitted to continue bottle feeding or pacifier sucking, or to persist in digit-sucking, well beyond the age where such activities are usually halted. Such is the case in certain areas of Sao Paulo, the locale of the present investigation. Without assuming any causal relationships, the investigator reveals some interesting patterns of co-occurrences. [Translation and article by Marvin L. Hanson, Ph.D.]
Vaidergorn, B. (1991). Oral habits and atypical deglutition in certain Sao Paulo children, International Journal of Orofacial Myology, 17 (3), 11-15.