S elf-esteem is a basic human need necessary for achievement (1), the main driving force behind all human activity and an organizing principle on which personal theories of reality are constructed (2). It operates, in effect, as an immune system of consciousness, providing resistance, strength and a capacity for regeneration (3,4). Its absence lowers selfconfidence and increases the likelihood of avoidant social behaviour (5). Thus, a lack of self-esteem impairs one's ability to become a successful member of society (6,7).Traditionally, surgical research has focused on quantifiable outcomes such as morbidity and mortality rates, and functional outcomes. Qualitative aspects of surgical procedures, however, have received much less attention. The question addressed in the present article is, in addition to functional improvement, does restoration of facial expression improve patients' general state of happiness, as reflected in self-esteem (8). The purpose of the present review was to identify which of the published self-esteem assessment tools is most appropriate for children with facial paralysis and the pediatric population in general. Research in surgery has traditionally focused on quantitative results, sometimes ignoring the qualitative impact on patients. The purpose of the present review was to identify appropriate measurement tools to assess the psychosocial domains of children undergoing corrective surgery for facial paralysis. More specifically, the construct of self-esteem was explored. The outcome of the present investigation is the recommendation for Harter-based assessment tools for research purposes and the Rosenberg Self-Esteem Scale for clinical use. Using these tools will allow health care professionals to assess the psychosocial issues that are important to children with facial differences and to conduct research on the psychosocial impact of corrective surgery.Key Words: Assessment; Facial paralysis; Self-esteem L'estime de soi chez les enfants atteints de paralysie faciale : examen des outils d'évaluation RÉSUMÉ : La recherche en chirurgie met traditionnellement l'accent sur les résultats quantitatifs, allant même parfois jusqu'à négliger les conséquences qualitatives pour les patients. La présente étude a pour but de trouver des outils de mesure appropriés, permettant d'évaluer les aspects psychosociaux des enfants qui subissent une intervention chirurgicale correctrice pour de la paralysie faciale. Plus précisément, nous avons exploré le volet de l'estime de soi. Nous en sommes arrivés aux conclusions suivantes : les meilleurs outils d'évaluation sont ceux fondés sur le modèle d'Harter pour la recherche et sur l'échelle de l'estime de soi de Rosenberg en clinique. Ces outils permettront aux professionnels de la santé d'évaluer les aspects psychosociaux qui revêtent de l'importance pour les enfants présentant des différences faciales et de faire de la recherche sur l'incidence psychosociale de la chirurgie correctrice.