Introduction: Finding a simpler and more accurate approach for the analysis of sagittal relations of jaws is a big challenge. The choice is not simple, due to the variability of the points on which the ANB angle is based, which leads to the usage of an additional linear parameter such as Wits. Objective: To observe the daily involvement of the Wits appraisal and its correlation with the ANB angle, as well as to show the justification of the usage of the Wits appraisal, its stability, and modifications for obtaining a comprehensive diagnostic image. Material and methods: Literature reviews and analysis were performed by the research network ResearchGate, Academia.edu and PubMed, by searching for papers not older than 2000, with the keywords Wits appraisal, Steiner cephalometric analysis, Orthodontic cephalometry and literature from books and contemporary journals publication. Results: The variable position of the points that determine the ANB angle showed the justification for the additional use of the Wits appraisal, and a correlation was observed in normodivergent patients. The influence of the occlusal plane position on the Wits noted its disadvantage and its modification requirement in patients with increased lower face height and high FMA angle. Conclusion: Sagittal jaws relations analysis should take into consideration additional factors such as the size of the FMA angle, the inclination of the occlusal and the mandibular plane, the vertical growth. If necessary, the modification of the Wits appraisal can be used.

Malocclusions are manifested with changes in the teeth position, different position of the bones of maxilla and mandible are often accompanied by soft tissue changes. Orthodontic treatment also affects the changes of soft tissue structures, and improves the facial aesthetics of the patients. In order to see the benefits of orthodontic therapy in Class II/1 malocclusion, an analysis of the changes that occur in the soft tissues and lips in patients before and after, was performed. For this purpose, 7 soft tissue parameters of the lips were analyzed in 30 patients with Class II Division 1 malocclusion, before and after orthodontic treatment, and in 30 patients with normal occlusion. The results indicate that after orthodontic treatment in patients with Class II/1 malocclusion, there are significant changes in the upper smile line, the height of the upper lip at rest position and during the smile and for the intercommissural length. From the analysis it can be concluded that the soft tissues follow the changes that occur with orthodontic treatment, which positively affects the aesthetics of the lips and the smile.