The competitiveness of Angola, excluding its oil and diamond sectors, is primarily based on traditional production factors such as labor, land, and capital. However, in the modern paradigm of regional economic development, these advantages are less significant compared to the 'new' production factor of knowledge. This paper emphasizes the importance of developing training programs that extend beyond conventional curricula to engage students actively in their educational experiences, thus fostering self-learning. The productivity of enterprises remains a complex issue, highlighting the significance of the individual in the process. Blau's Social Exchange Theory (1964) underscores the importance of linking processes and people, illustrating how social exchanges between managers and employees can enhance productivity. Although challenging to measure, training's organizational impact is evident through personal and organizational development, providing clear benefits via knowledge transfer. Our theoretical framework is grounded in the 'theories of regional imbalance' by François Perroux, Hirschman, Kaldor, and others, focusing on how market forces can lead to economic imbalances. This work presents knowledge and education as pivotal elements in driving regional development and addresses the spatial differences and undervaluation they often receive.

Objective: Impacted lower third molars are present in approximately 90% of the population, often leading to various postoperative complications. This study aims to compare the operating time and postoperative complications between two surgical techniques for extracting mandibular impacted third molars: the T-shape and the three sections methods. Methods: A total of 100 patients, aged 18 to 26, with bilateral symmetrical mandibular impacted third molars, were selected for this study. Each patient's left and right sides were operated on using the T-shape and three sections methods, respectively. Preoperative and postoperative care were consistent across groups. Outcomes such as operating time, root pruning, postoperative complications, and evaluations at 24, 48, and 120 hours post-surgery were recorded. Data analysis was performed using the t-test in SPSS version 17.0. Results: A statistically significant reduction in distal parts removing time, as well as in 24-hour postoperative facial edema and pain, was observed with the T-shape method. No significant differences were found in postoperative trismus, root pruning, or nerve lesions. Conclusion: The T-shape method appears to be a reliable technique for the extraction of horizontally impacted third molars, offering reduced trauma and complications.