Bamboo Connection Technology for Lightweight Structures

Bamboo construction is often related to traditional and vernacular architecture, which is found mostly in rural areas, where, for the construction, local people apply diverse techniques learned in an empirical way and passed on from generation to generation. However, in the last years, many modern constructions with bamboo have been developed around the world. At the same time, many connections have been designed for permanent and ephemerals lightweight structures. However, most of them do not have standardization and mechanical testing, because it is expensive or there are no means to do it. Therefore, it is required to create a technology classification for the most used existing connections, starting with the traditional way to join canes until the contemporary connections developed with high technology. In this context, connections are a challenge to be developed, as currently there is no normative in bamboo to follow and create standardization.

Analog and digital modeling of sound and impaired periodontal supporting tissues during mechanical testing

Periodontitis is one of the most common conditions affecting oral health among adults, posing a great challenge for both patients and also for dentists aiming to treat this disease. In severe stages such deterioration of the supporting tissues, namely the periodontal ligaments and the bone, can occur, which will affect the biomechanical behavior and therefore the longevity and survival of the affected teeth. In order to be able to plan both periodontal and subsequent restorative treatment properly, valid modelling of the current clinical situation is advised. The aim of the present article is to comprehensively discuss possible analog and digital modeling methods of periodontally affected teeth and the periodontal structures surrounding them. Modelling possibilities can serve later as the basis of mechanical load, digital finite element studies, and also aid clinical treatment planning.