The aim of this study was investigate`s patient and parent’s aesthetic perception and psychological impact of molar-incisor hypomineralisation (MIH) and to assess the correlation of MIH with caries experience. The sample comprised 56 children, 28 with MIH and 28 without MIH (comparison group), and their gardens (n=56). For the perception data we used the Child and Parent’s Questionnaire of Teeth Appearance. We used the European Academic of Paediatric Dentistry (EAPD) criteria to define MIH. Caries experience was assessed by Decayed, Missing and Filled Teeth (DMFT) index. Chi-square, Student’s t-test and correlation tests were used with significance level set at 5%. Most children were male (n=35; 62.5%) and patients with MIH perceived their affected teeth as stainned (p=0.01). MIH was considered by parents (6.96±1.7) to enhance psychosocial condition (social, physical, and psychological social) of their children (p<0.01). Patients with severe MIH showed the worst perception about the color of the teeth (p=0.07). There was no correlation between DMFT scores and presence of MIH (p=0.80). Patients and parents perceived MIH. Groups with severe MIH (children/ parents) showed the worse aesthetic perception.