Objectives: To study the correlation between alveolar bone morphology of mandibular central incisors and crowding of the six anterior mandibular teeth by using little’s Irregularity Index in adults.rnMaterials and Methods: A total of 44 adults' cases (22 females and 22 males), aged 18-38 years. Patients were scanned by CBCT. We evaluated the morphology of alveolar bone around mandibular central incisors, calculated Little’s Irregularity Index of the anterior lower dental arch, analyzed data, performed the statistical analysis, and studied the correlation.rnResults: The current study showed statistically significant differences according to gender between some sites of alveolar bone surrounding central incisors and found no confirmed correlations between the studied variables.rnConclusion: The potential risks, which may occur as a result of orthodontic treatment for adults, require individual planning of each tooth movement after assessing its condition and position within the dental arch, as well as a continuous evaluation of the surrounding alveolar bone, in order to achieve safe treatment results that ensure the integrity of the periodontal tissues.