Digital Workflow for Homemade Aligner

Advanced digital technology is rapidly changing the world, as well as transforming the dental profession. The adoption of digital technologies in dental offices allied with efficient processes and accurate high-strength materials are replacing conventional aligners workflows to improve overall patients’ experiences and outcomes. Various digital devices such as 3D printers, intraoral and face scanners, cone-beam computed tomography (CBCT), software for computer 3D ortho setup, and 3D printing provide new potential alternatives to replace the traditional outsourced workflow for aligners. With this new technology, the entire process for bringing clear aligner production in-office can significantly reduce laboratory bills and increase patient case acceptance to provide high-quality and customized aligner therapy

Digitaler kieferorthopädischer Workflow unter Berücksichtigung funktionstherapeutischer Aspekte

Zielstellung Ziel der vorliegenden Studie ist, einen digitalen Workflow für die Erwachsenenkieferorthopädie unter Einbeziehung funktioneller Aspekte des Kiefergelenks zu erarbeiten und die aktuelle Evidenzlage von dafür notwendigen Teilschritten zusammenzutragen sowie zukünftige Entwicklungsbereiche aufzuzeigen. Als klinischer Anteil soll eine Methode entwickelt werden, um die individuelle Scharnierachse ohne extraoralen Registrierbehelf digital zu bestimmen. Material und Methoden Die Literaturübersicht wird als ausführliche Handsuche in PubMed/MEDLINE und aus referenzierten Quellen erstellt. Das neu erdachte, dreidimensionale Verfahren wird als Proof-of-concept an einem Probanden modifiziert und getestet. Mit dem CentricGuide wird die zentrische Kondylenpostion registriert und anschließend per DVT und MRT validiert und beurteilt. Die Berechnung der Scharnierachsen erfolgt in Matlab anhand von im zahntechnischen Laborscanner digitalisierten Endpositionen mehrerer rotatorischer Öffnungsbewegungen aus der registrierten Zentrikposition. Ergebnisse Ein vollständig digitaler, kieferorthopädischer Workflow unter Einbeziehung funktioneller Aspekte des Kiefergelenkes ist technisch möglich. Mit dem CentricGuide gelingt es bei diesem Probanden, reproduzierbar eine zentrale Position der Kondylen in den Fossae einzustellen. Der erdachte Ansatz ist bei diesem Probanden geeignet, die individuelle Scharnierachse auf 2 mm genau zu lokalisieren. Schlussfolgerungen Der digitale Workflow sollte zugunsten einer patientenindividuelleren Planung und Therapie stärkere Verbreitung finden. Dazu sind weitere klinische Studien zur Validierung der Teilschritte und das Zusammenführen all dieser in einer anwenderfreundlichen Software notwendig. Zur schnellen und einfachen, digitalen Bestimmung der individuellen Scharnierachse sollten entsprechende Algorithmen in die Software von Intraoralscannern aufgenommen und klinisch an größeren Kohorten überprüft werden.Objective A fully digital workflow for orthodontics in adults incorporating functional aspects of the temporomandibular joint (TMJ) is proposed. The current scientific evidence of necessary substeps ranging from planning and simulation to execution is presented. Regarding the substep of patient specific hinge axis determination a novel method independent of any facebow is developed and tested. Materials and Methods To gather scientific evidence PubMed/MEDLINE is searched and the bibliography of relevant articles is considered. As a proof-of-concept the novel 3D-method is tested and refined based on one subject. The centric relation is determined using CentricGuide and evaluated through the means of cone-beam computed tomography (CBCT) and magnetic resonance imaging (MRI). To investigate rotatory jaw opening multiple bite registrations of intermediate positions starting from the same centric relation bite are taken and later digitized in a dental laboratory scanner. Calculation of hinge axes is carried out in Matlab. Results A fully digital workflow for orthodontics in adults incorporating functional aspects of the TMJ is technically feasible. Using CentricGuide a centric condyle-fossa-relation was achieved reproducibly in this subject. Furthermore, hinge axis location could be determined with an accuracy of 2 mm using the novel method. Conclusion To improve patient specific planning, simulation and treatment the digital workflow should be increasingly adopted. This can be accelerated by validating all substeps in clinical studies and finally uniting the whole workflow in a user-friendly software. Algorithms for hinge axis determination (possibly similar to the approach presented) should be implemented in the software of intraoral scanners and tested on validation cohorts. This may lead to an easy, digital and more patient specific, clinical procedure

Issues in Contemporary Orthodontics

Issues in Contemporary Orthodontics is a contribution to the ongoing debate in orthodontics, a discipline of continuous evolution, drawing from new technology and collective experience, to better meet the needs of students, residents, and practitioners of orthodontics. The book provides a comprehensive view of the major issues in orthodontics that have featured in recent debates. Abroad variety of topics is covered, including the impact of malocclusion, risk management and treatment, and innovation in orthodontics

Management of bone defects with Bio-oss

Introduction: The defects in the alveolar bone might appear as a result of congenital malformations, traumatic injuries, periodontal disease, surgical traumas, chronic periapical changes and tumors from benign or malignant origin. The aim of this study was to provide solid and healthy area with application of Bio-Oss in the defect. Materials and methods: Based on the clinical diagnosisestablished by previously taken history, clinical examination and radiographic images oral-surgery interventions was made. To realize the aim of this work, augmentative material was implicated in the bone defects made in the patients after removal of follicular cyst, chronic periapical lesion, and parodontopathia. During the first and seventh day of the interventions, the patients have been followed through from aspect of possible development of local and general complications after the oral-surgery intervention. After period of one, three and six mount control x-ray was made. Results: Obtained results confirmed that: volume of the socket and defect of the bone was kept, fast revascularization was achieved, bone formation and slow resorption of the augmentative material was achieved, and period of normal healing without infection was also achieved. Conclusions: The augmentative materials used for treatment of bone defects besides their basic chemical and physical characteristics referring to their solubility in the body fluids, the transformation, modulation and resorption must be completely safe or secure, i.e. not to bring any risk of infection, immunological risk, physiological intolerance or inhibition of the process of restitutio ad integrum. In our study Bio-Oss was confirmed as augmentative material who had this characteristics. Keywords: bone defect, resorption of the bone, augmentative material, Bio-Os

A Textbook of Advanced Oral and Maxillofacial Surgery

The scope of OMF surgery has expanded; encompassing treatment of diseases, disorders, defects and injuries of the head, face, jaws and oral cavity. This internationally-recognized specialty is evolving with advancements in technology and instrumentation. Specialists of this discipline treat patients with impacted teeth, facial pain, misaligned jaws, facial trauma, oral cancer, cysts and tumors; they also perform facial cosmetic surgery and place dental implants. The contents of this volume essentially complements the volume 1; with chapters that cover both basic and advanced concepts on complex topics in oral and maxillofacial surgery

Advanced Applications of Rapid Prototyping Technology in Modern Engineering

Rapid prototyping (RP) technology has been widely known and appreciated due to its flexible and customized manufacturing capabilities. The widely studied RP techniques include stereolithography apparatus (SLA), selective laser sintering (SLS), three-dimensional printing (3DP), fused deposition modeling (FDM), 3D plotting, solid ground curing (SGC), multiphase jet solidification (MJS), laminated object manufacturing (LOM). Different techniques are associated with different materials and/or processing principles and thus are devoted to specific applications. RP technology has no longer been only for prototype building rather has been extended for real industrial manufacturing solutions. Today, the RP technology has contributed to almost all engineering areas that include mechanical, materials, industrial, aerospace, electrical and most recently biomedical engineering. This book aims to present the advanced development of RP technologies in various engineering areas as the solutions to the real world engineering problems

University of Maine Undergraduate Catalog for 1994-1995, part 2

This second part (of two) of the catalog for the 1989-90 academic year at the University of Maine includes sections for the College of Natural Resources, Forestry and Agriculture, College of Sciences, College of Social and Behavioral Sciences, University College, University-wide programs in Canadian studies, honors, an Onward Special Services Program, peace studies, and women\u27s studies, a list of the members of the administration, Board of Trustees, faculty and staff, and an index

Memorias Actualización en Prácticas Odontológicas Integradas SEPOI-PPS 2018

Esta obra simboliza a la ciencia y al arte difundidos en las Terceras Jornadas de Actualización en Prácticas Odontológicas Integradas, transformándose en una obra rica en experiencia clínica como mejor forma de reflejar la Odontología moderna. El libro ha querido conservar un equilibrio entre las ciencias básicas, métodos de diagnósticos, aplicación práctica y una amplia variedad de herramientas clínicas para proporcionar los mejores resultados en las resoluciones, acompañado del apoyo de trabajos de investigación. Los trabajos de extensión reflejan los cambios de paradigma en la formación, integración y calidad que debe encarar la Universidad pública vinculándola a las demandas sociales.Facultad de Odontologí

Memorias Actualización en Prácticas Odontológicas Integradas SEPOI-PPS 2018

Esta obra simboliza a la ciencia y al arte difundidos en las Terceras Jornadas de Actualización en Prácticas Odontológicas Integradas, transformándose en una obra rica en experiencia clínica como mejor forma de reflejar la Odontología moderna. El libro ha querido conservar un equilibrio entre las ciencias básicas, métodos de diagnósticos, aplicación práctica y una amplia variedad de herramientas clínicas para proporcionar los mejores resultados en las resoluciones, acompañado del apoyo de trabajos de investigación. Los trabajos de extensión reflejan los cambios de paradigma en la formación, integración y calidad que debe encarar la Universidad pública vinculándola a las demandas sociales.Facultad de Odontologí