#Germany #Smartee Denti-Technology #Cologne #Gang Shen #DGAO

Chinese Orthodontic Advances at DGAO 2024

The Journal of Aligner Orthodontics (JAO), a renowned publication in orthodontics, recently provided a detailed overview of the 8th German Congress of Orthodontics with Aligners (DGAO) held in Cologne in November 2024. Among the highlights was the presentation by Professor Gang Shen, Chief Scientist at Smartee Denti-Technology and Executive President of Taikang Bybo Dental Group. His innovative approach to mandibular repositioning therapy garnered significant attention due to its structured methodology and non-surgical effectiveness in treating Class II skeletal malocclusions.

The Concept of ‘Three Depths of Malocclusion’

In his presentation, Professor Shen introduced the diagnostic concept of “three depths of malocclusion,” a complex condition characterized by a retruded mandible, increased facial convexity, excessive overjet, deep vertical overbite, pronounced Spee curve, and Class II molar relationships. He emphasized the clinical challenges associated with treating these cases in adult patients, where surgical options are often deemed necessary but frequently declined by patients. Traditional interventions, such as maxillary distalization or premolar extractions, also present limited applicability.

To address these challenges, Professor Shen proposed a two-phase orthopedic treatment strategy utilizing the S8-SGTB clear aligner system from Smartee. The first phase focuses on mandibular repositioning, achieved through a combination of vertical bite blocks and anterior guided advancement using the S8-SGTB appliance. The second phase employs aligners to optimize dental relationships by guiding the intrusion of incisors and extrusion of molars following the repositioning of the mandible.

Mechanism of Action and Biological Viability

As highlighted in the JAO article, Professor Shen underscored that the remodeling of the temporomandibular joint (TMJ) remains biologically feasible even in adulthood, allowing for effective repositioning beyond adolescence. He outlined a four-step simulation protocol to determine and record the optimal mandibular advancement position:
1. Conduct an intraoral scan to capture the anatomical structures of the patient's dentition.
2. Simulate mandibular repositioning to define the new mandibular position.
3. Utilize a wax record to secure this position.
4. Perform a subsequent occlusal scan to digitally capture the final mandibular posture.

It’s important to note that there should be a posterior separation of 5 mm during the construction bite.

With over 100,000 clinical applications to date, the documented success of Smartee's GS system further validates its precision and potential for non-invasive treatment methodologies.

To explore more about Smartee's mandibular repositioning technology and view case examples, visit www.smarteealigners.com.



This presentation not only furthers the dialogue on orthodontic treatment options but exemplifies the innovative strides being made in Chinese dentistry, setting new standards and methodologies for practitioners worldwide.