Comparison of Orthodontic Techniques used for treating patients with severe form of scissor bite: a systematic review

Background: Severe forms of scissor bite or Brodie syndrome is rare orthodontic malocclusion that occurs with a frequency of 0.01% in general population. Several methods have been described to obtain a correction from a dental, skeletal and soft tissutal points of view. In literature it was described: jaws osteotomies, surgery first approach, as the use of orthopedic-functional devices and extractions with the fixed multibrackets orthodontics combined with miniscrews for the skeletal anchorage. The aim of work is to compare all the treatment to evaluate their applicability, efficacy, effectiveness and relapsing risk in combination with the compliance of patients. Results: The ortho-surgical correction remains the golden standard in severe dentofacial deformities because of its more applicability, lower risks of failure and rapidity, as it doesn’t need patient compliance. However not all the patients accept to undergo surgery, so pure orthodontic approach is need. So the combination of fixed orthodontics with skeletal anchorage has proven the best effective and stable to 5 years from therapy. In young patient with mild form of malocclusion when it was intercepted early, a functional therapy should be attempted. Conclusion: Each form of clinical case requires a proper evaluation considering the age of patient, the features of pathology as the presence of other complications. So there isn’t a standard approach, but sure the orthognathic surgery as in recent times the combination of fixed orthodontics with skeletal anchorage could provide adequate skeletal and dento-alveolar changes useful to reduce the malocclusion.