Abstract
Background/Objectives: Although the benefits of breastfeeding on the development and health of the infant are well known, the relationship between breastfeeding, oral health and attachment style or emotional bonding is not fully known. This research sought to explore, from a comprehensive perspective, the associations between breastfeeding history and children's attachment styles, as well as the relationships between breastfeeding history and oral health indicators within conceptual psychophysiological frameworks discussed in the literature. Methods: This was a cross-sectional (descriptive and analytical) and correlational study. In this work, the associations of breastfeeding with attachment and oral health were analyzed in 100 children between 9 and 11 years old at a primary school in the municipality of José Azueta, Veracruz, Mexico, from December 2023 to September 2024 by a clinical history, dental examinations (Oral Hygiene Index-Simulated (OHI-S), Dental Caries History (DEOPT) and Detection of Malocclusions (DAI)) and the Attachment and Interaction Styles Instrument. Results: Significant differences were found in the security and closeness attachment style, the oral-hygiene index, the caries index, and occlusion by type of breastfeeding, showing better values in boys and girls who were exclusively breastfed. Likewise, both in the correlation analysis and in the multiple regression model, associations were observed between having been exclusively breastfed and the attachment style and oral indices. Conclusions: Our data show the importance of breastfeeding in pubertal children, since it was associated with better attachment and oral health; however, these findings reflect patterns of co-occurrence and should not be interpreted as causal relationships.