Dieter Drescher
Short CV
Study of dentistry from 1977 to 1982 at the University of Bonn. Doctorate thesis in 1984. Postgraduate education in orthodontics from 1984 to 1988. Ph.D. in 1991. Head of the Department of Orthodontics at the University of Bonn from 1993 to 1997. Since 1997 full professor and head of the Department of Orthodontics at the Heinrich- Heine-University of Düsseldorf. Since 2002 Executive Director of the Center of Dentistry at the University of Düsseldorf. Milton Sims Visiting Professor at the University of Adelaide in 2019.
Prof. Drescher published more than 170 articles and lectured all over the world. His main interests focus on skeletal anchorage, dentofacial orthopedics, and smart materials.
Pre-Congress Course: Advanced TAD based mechanics for orthodontics and dentofacial orthopaedics
The application of mini-implants in orthodontics and dentofacial orthopaedics has gained significant attention due to their efficacy and predictability. Recent studies underscore the anterior palate as the optimal insertion site for these mini-implants, citing superior bone quality and quantity. Clinical success rates range from 98% to 99%.
The Benefit system is designed to leverage mini-implants inserted in the anterior palate for various orthodontic procedures. These include molar distalisation, molar mesialisation, anterior space closure, simultaneous mesialisation and distalisation for midline correction, alignment of impacted teeth, and molar intrusion. The system's design facilitates a wide range of orthodontic corrections with high success rates.
The hybrid hyrax represents the first Mini-Implant Assisted Rapid Palatal Expansion (MAPRE) appliance. Numerous studies have demonstrated that the hybrid hyrax produces superior skeletal effects in maxillary expansion compared to conventional appliances. When used in conjunction with a face mask, it is the most effective method for maxillary protraction in Class III malocclusions. Additionally, the integration with the Mentoplate eliminates the need for extraoral appliances.
Recent advancements in 3D design and metal printing have introduced a new generation of appliances. These innovations aim to enhance clinical efficiency by allowing for the simultaneous insertion of implants and appliances in a single appointment. This development significantly reduces the overall treatment time and improves patient comfort and compliance.
A multitude of clinical examples, supported by scientific evidence, illustrates the effective utilization of mini-implants in routine orthodontic practice. The integration of these advanced systems and appliances not only optimizes treatment outcomes but also enhances the overall patient experience.
Lecture 1: Enhanced aligner treatment with TAD borne appliances
In contemporary orthodontics, there is a growing patient demand for orthodontic treatments that are imperceptible or minimally visible. Aligners have emerged as a popular choice meeting this demand, particularly effective for addressing mild to moderate malocclusions. However, research identified certain types of tooth movements that are hardly achievable when using aligners, specifically bodily movements like space closure and maxillary expansion.
To address these limitations, a promising approach involves combining aligners with TAD-borne appliances to augment treatment outcomes while preserving the aesthetic benefits of aligner therapy. This combination allows for efficient management of tasks such as distalization exceeding 3 millimeters, and bodily space closure. For effective maxillary expansion, the hybrid hyrax can be utilized in conjunction with aligners. This appliance facilitates sufficient expansion while controlling buccal tipping of the lateral segments, thereby achieving desired clinical outcomes.
Two distinct treatment workflows can be employed: Consecutive workflow and simultaneous workflow. The integration of aligners with TAD-borne appliances represents a predictable and aesthetically pleasing solution even for complex malocclusions. This combined approach leverages the strengths of both systems, offering orthodontists enhanced flexibility and efficacy in treatment planning and execution.
Lecture 2: Skeletal anchorage in the mandible
In contrast to the maxilla, where the T-zone in the anterior palate yields very high success rates, the mandible presents less favourable conditions. Reported mandibular implant failure rates range from 11% to 16.2%. A critical determinant of success lies in the insertion technique. Oblique insertion with the implant head positioned precisely at the muco-gingival margin has been found to be the preferred approach.
To enhance predictability, mini-plates like the Mentoplate can be employed for secure anchorage. Studies have shown that supramental mini-plates achieve nearly 100% survival rates. For mandibular space closure or molar distalization, the Mentoslider device has been developed. It can be used also for vertical corrections.
Modern techniques now enable the production of Mentoplates through titanium printing, facilitating the creation of fully customized mini-plates. When used in conjunction with a guide, the Mentoplate together with the Mentoslider can be precisely positioned.
Sponsored by: Orthoshop Ε.Ε. – Royal Orthodontics