Prof. Gang Shen Unveils New Malocclusion Classification in Orthodontics
A New Era in Malocclusion Diagnosis
In April 2026, a groundbreaking research study titled "A New Classification System for Malocclusions with Facial Convexity" was published in the Journal of Aligner Orthodontics (JAO) by a team led by Professor Gang Shen. This research marks a significant milestone in orthodontic practice, proposing a novel diagnostic framework that transcends the traditional Angle classification system, which has been the standard for over a century.
Redefining Malocclusion Diagnosis
The Angle classification of malocclusions primarily focuses on molar relationships, overlooking numerous other diagnostic factors critical to comprehensive patient care. Professor Shen’s innovative research expands this narrow view by including essential elements such as the mandibular position, morphology, the depth of the curve of Spee, and the state of the temporomandibular joint (TMJ). This expanded analytical scope empowers orthodontists with a more nuanced understanding of malocclusion types, thus enabling them to devise more precise and effective treatment plans.
The research articulates the etiopathogenic mechanisms encountering various facial convexity subtypes, allowing healthcare providers to approach each case with evidence-backed strategies. Moreover, it emphasizes the significance of standardizing procedures and biomechanical principles involved in mandibular advancement therapies—a game-changer for complex orthodontic cases.
The Role of Mandibular Morphology
A pivotal aspect of Shen's groundbreaking research is the introduction of