How Predictable Is Invisalign First for Dental Arch Expansion?
A new systematic review and meta-analysis of 349 children treated with Invisalign First found that only around 65% of planned expansion was achieved in the maxilla and 71% in the mandible, with upper permanent molars the least predictable, so clinicians should expect some under-expansion rather than relying on the digital treatment plan alone.
What Causes Patient Harm During Orthodontic Treatment?
An Aarhus University analysis of 644 orthodontic compensation claims made in Denmark between 2017 and 2024 found that only 30.4% were upheld. Severe root resorption leading to tooth loss was the most common recognised harm, and although relapse was the reason patients cited most often, only 1 of 120 relapse claims was accepted, a gap that underlines the importance of clear communication about expected outcomes and long-term retention.