3D navigation in surgery of Eagle syndrome.

NTRODUCTION: Eagle's syndrome is a rare condition caused by the elongation of the styloid process (> 4 cm) or calcification of the stylohyoid ligament. Patients with Eagle's syndrome typically present various clinical symptoms, such as headache, facial pain, neck pain, pulsating pain, sore throat, foreign body sensation, dysphagia, dysphonia, cough, voice changes, otalgia or vertigo. 3D printing refers to processes in which successive layers of material are formed from 3D computer tomography data to synthesize a three-dimensional object. This new diagnostic technique of rapid prototyping technology led to innovative new applications in biomedicine. OBJECTIVE: The primary goal for this case study was to find out, whether the nowadays so popular 3D technology aids in the treatment of the Eagle syndrome or other similar craniofacial abnormalities during the surgical procedure. CASE PRESENTATION: We report a case of a patient who initially presented a combination of symptoms like headache, sore throat, neck pain, which exacerbated with the movement of the head. This case report provides a brief review of the diagnosis and surgical management of the Eagle's syndrome with the help of 3D model navigation. CONCLUSION: Eagle's syndrome is difficult to diagnose due to its wide variability in symptoms. The inherent accuracy and other properties of 3D printing have allowed it to have exciting applications in anatomy education and surgery, with great benefit to the maxillofacial surgery. With the assistance of 3D technology, it is much easier for the surgeon to plan the surgical approach and the surgery, and significantly reduce the operation time (Fig. 3, Ref. 22).

[Possibility of 3D Printing in Ophthalmology - First Experiences by Stereotactic Radiosurgery Planning Scheme of Intraocular Tumor]. / Moznosti 3D tlace v oftalmológii - prvé skúsenosti pri plánovaní stereotaktického rádiochirurgického zákroku u vnútroocného nádoru.

Nowadays 3D printing allows us to create physical objects on the basis of digital data. Thanks to its rapid development the use enormously increased in medicine too. Its creations facilitate surgical planning processes, education and research in context of organ transplantation, individualization prostheses, breast forms, and others.Our article describes the wide range of applied 3D printing technology possibilities in ophthalmology. It is focusing on innovative implementation of eye tumors treatment planning in stereotactic radiosurgery irradiation.We analyze our first experience with 3D printing model of the eye in intraocular tumor planning stereotactic radiosurgery. KEY WORDS: 3D printing, model, Fused Deposition Modelling, stereotactic radiosurgery, prostheses, intraocular tumor.

Amelogenesis imperfecta and the treatment plan - interdisciplinary team approach.

Amelogenesis imperfecta is a set of hereditary defects representing mainly the development defects of enamel without the presence of whole-body symptoms. Developmental disorders can manifest a complete absence of enamel, which is caused by improper differentiation of ameloblasts. This article describes the diagnosis and treatment of a patient with amelogenesis imperfecta, as well as the need for interdisciplinary cooperation to achieve the best possible morphological, skeletal, functional and aesthetic rehabilitation of the patients with this diagnosis. Furthermore, the article reviews literature dealing with other anomalies occurring in association with amelogenesis imperfect (Fig. 12, Ref. 20).

Digital and manual cephalometric analysis.

OBJECTIVES: To compare the manual and digital cephalometric analyses and to research a new procedure of analog cephalogram digitalization. METHODS: 40 repeated measurements were used to evaluate the reproducibility and reliability of both methods. The analog x-ray was CHIRALUX2, the digital camera used was Canon PowerShot G5 and the digital tracing was done by Dolphin imaging version 10. The sample dispersion has been evaluated for each of the monitored cephalometric variables (SNA, SNB, ANB, PP/ML, inter-incisal angle and Wits). The difference of sample dispersion was tested (Morgan-Pitman). Four doctors processed 100 random analog cephalograms in total and evaluated them in a way established by Bland and Altman. RESULTS AND CONCLUSION: Validity and reproducibility of analyses carried out manually and digitally is in high mutual correlation and therefore the software analysis can fully substitute the manual method. The dispersion of values in repeated measurements was higher in manual method and therefore we consider the digital method more accurate (Fig. 4, Tab. 1, Ref. 15). Full Text (Free, PDF) www.bmj.sk.

The WEB 2.0 induced paradigm shift in the e-learning and the role of crowdsourcing in dental education.

OBJECTIVES: Authors evaluated the effect of the WEB 2.0 environment on dental education and estimated the difference in retention of knowledge by cephalometric analysis in orthodontics between conventional education and off-line e-learning. BACKGROUND: Five years of experience with complex web-based e-learning system allowed the evaluation by retrospective analysis and on-line questionnaire. RESULTS: The results revealed the current trends in on-line behavior of students based on the WEB 2.0 innovative technologies like Ajax. Results confirmed an increasing number of resources with a rising frequency of e-learning materials. CONCLUSION: The study confirmed that e-learning of the same subject is more efficient in immediate examination after the lecture with even better results after 12 and 24 months against the control group (Tab. 3, Fig. 1, Ref. 26).