Space closure in orthodontics
A challenging task in orthodontics is control during space closure. The objective of this treatment phase is predictability and efficiency in combination with biologic, functional and aesthetic goals. Anchorage planning and management is critical for correct placement of the incisors in the face and within the boundaries of the alveolar bone with coordination of the mandibular and maxillary arches. Many pitfalls during space closure can be avoided by following few guidelines.
Should spaces be closed on a sectional wire or is a continuous wire always the preferred approach? Can one orthodontic system be applied to solve any clinical situation or is it advantageous to combine techniques?
The course will focus on planning, biomechanical considerations and clinical management of space closure mainly in cases of extraction and agenesis.
Keywords: extraction, agenesis, excessive spaces, anchorage, biomechanics, mini-implants.
Treatment of agenesis
Novel and sophisticated techniques have improved the outcome of both orthodontic closure and prosthetic replacement of missing teeth. Still the question remains whether to open or close agenesis sites. What are the steps leading to a decision? Furthermore, space opening and space closure require very different approaches in planning, treatment, retention and communication with other specialists.
The introduction of skeletal anchorage, was a game changer in orthodontics and treatment of agenesis. The limits of minimum anchorage could be extended towards “absolute” anchorage with no movement of the anchorage teeth. Even more extraordinary, moving the entire dentition including the incisors forward has become a possibility furthering a new concept: ultra-minimum anchorage.
The course will focus on both opening and closure from diagnosis and decision making moving to clinical management and biomechanics and finally to retention and communication with the implantologist and prosthodontist.