Digital technology and techniques used in the fabrication of complete dentures

Digital denture is a complete manufacturing process for the rapid production of removable full-arch dentures. Exclusive design software and ideally coordinated materials, combined with well-designed manufacturing strategies and milling equipment platform, provide predictable and reproducible results. The material for digitally produced, are tooth coloured discs made from acrylic material, which are suitable for the individual design and production of whole tooth segment. The long-lasting dental restorations are individually customized to integrate with patients natural antagonist teeth Base material are PMMA discs for the production of denture bases. The PMMA material is distinguished by its high impact quality. This enhances the fracture strength and increases the longevity of the restoration. In addition, the industrial manufacturing process ensures homogeneous material quality. In the first milling procedure, the dental arch is milled occlusally with oversized dimensions. The basal surfaces, however, are milled exactly to their final dimension, so that the denture base fits perfectly. The oversized dental arch is adhesively cemented to the denture base. Cementation is a quick and easy procedure for the dental technician. During the fine milling process, the dental arch is milled to its final size and the excess bonder is removed. With digital denture, the new digital manufacturing process for dentures, you save valuable time compared to manual production methods: less manual working steps, less interruptions in production, no complex plaster models and no articulating. As a result, porosities and air inclusions in the material can be avoided, which results in a high-quality denture base. Keywords Digital denture, CAD design, PMMA discs, prosthetic

Representation of different techniques for determination of the working length in endodontic treatment

Introduction: The working length is the distance between occlusal reference point and the place where the channel should be expanded, cleaned and filled. Determination of the working length during endodontic treatment is a key procedure for successful endodontic treatment. Aim of the research: We set the goal of making an assessment of commonly used techniques for determining the working length in dental offices in Stip. Material and method: For the realization of our goal a questionnaire was prepared that included all the techniques for determining the working length. The dentists in their dental practice were asked to notice all the advantages and disadvantages, and how satisfy are they while using them. The research was conducted randomly in 15 dental offices in Stip. Results: Obtained results showed that the most commonly used method is X-ray method of determining the working length, with a high level of security in its implementation. A small part use tactile sensitivity method and Apex locator as the most modern and safest method of determining the working length. Conclusion: Modern techniques for determining the working length in a large percentage increase success of endodontic treatment. It is really important and necessary to have an initial X-ray, apex locator or combination of several methods for accurately working length. Keywords: apex locator, x-ray, working length