%0 Journal Article %T Prevalencia de h¨¢bitos bucales parafuncionales en ni£¿os de edad preescolar en Ciudad Nezahualc¨®yotl, Estado de M¨¦xico, 2009 %A Murrieta-Pruneda %A Jos¨¦ Francisco %A Allendelagua Bello %A Reyna Isabel %A P¨¦rez Silva %A Luis Enrique %A Ju¨¢rez-L¨®pez %A Lilia Adriana %A Linares Vieyra %A Celia %A Mel¨¦ndez Ocampo %A Arcelia Felicitas %A Zurita Murillo %A Violeta %A Solleiro Rebolledo %A Mar¨ªa Guadalupe %J Bolet¨ªn m¨¦dico del Hospital Infantil de M¨¦xico %D 2011 %I Scientific Electronic Library Online %X background. a habit is any activity done regularly and unconsciously, which is acquired by experience. non-nutritive buccal habits are important because they can interfere with the development of dental occlusion. the aim of this study was to evaluate the prevalence of non-eating buccal habits in a group of preschool children. methods. an epidemiological, cross-sectional and descriptive study to evaluate the clinical signs of non-nutritive buccal habits was performed by one previously calibrated examiner (intra-examiner kappa = 0.95). a questionnaire was completed for 211 preschool children from the information obtained in two stages: 1) parents of the children completed a questionnaire, and 2) the clinical evaluation of the children was registered by the examiner. results. of the studied population, 68.2% showed at least one non-nutritive buccal habit. onychophagia was the habit with the highest prevalence. the relationship between age and prevalence of non-nutritive buccal habits was statistically significant, whereas gender was not statistically significant. conclusions. there was a high prevalence of non-nutritive buccal habits not associated with the age of the child. %K preschool children %K prevalence %K dental occlusion %K non-nutritive buccal habits. %U http://www.scielo.org.mx/scielo.php?script=sci_abstract&pid=S1665-11462011000100004&lng=en&nrm=iso&tlng=en