A multidisciplinary approach for the restoration of a crown-root fracture with the involvement of supracrestal attached tissues: a case report with 7 year follow up

Restoration of crown-root fractures with the involvement of supracrestal attached tissues represents difficulties for clinicians, as these types of fractures require a multidisciplinary approach for adequate treatment and successful prognosis. Depending on the location of the fracture, different treatment approaches, such as periodontal crown lengthening procedures, rapid orthodontic or surgical root extrusion or tooth extraction followed by fragment reattachment, direct composite restorations, veneers, and crown restorations, have been indicated. This case report describes the management and long-term follow-up of the reattachment of a crown-root fracture using unidirectional fiber reinforcement after periodontal crown lengthening. Clinical and radiographic examinations of the reattached tooth after 7 years revealed favourable functional, physiological, and aesthetic outcomes and healthy surrounding periodontal structures, showing the success of the multidisciplinary treatment approach

The Multilingual Picture Database

Publisher Copyright: © 2022, The Author(s).The growing interdisciplinary research field of psycholinguistics is in constant need of new and up-to-date tools which will allow researchers to answer complex questions, but also expand on languages other than English, which dominates the field. One type of such tools are picture datasets which provide naming norms for everyday objects. However, existing databases tend to be small in terms of the number of items they include, and have also been normed in a limited number of languages, despite the recent boom in multilingualism research. In this paper we present the Multilingual Picture (Multipic) database, containing naming norms and familiarity scores for 500 coloured pictures, in thirty-two languages or language varieties from around the world. The data was validated with standard methods that have been used for existing picture datasets. This is the first dataset to provide naming norms, and translation equivalents, for such a variety of languages; as such, it will be of particular value to psycholinguists and other interested researchers. The dataset has been made freely available.Peer reviewe

The Effect of Prophylactic Polishing Pastes on Surface Roughness of Indirect Restorative Materials

The purpose of this study was to evaluate the influence of prophylactic polishing pastes (PPP; Detartrine (DT), Topex (TP)) on surface roughness (Ra) of indirect composites (IRC; Tescera (TES), Gradia (GRD), and Estenia C&B (EST)), a glass ceramic (Empress 2 layering (E2)), and a leucite reinforced glass ceramic (Empress Esthetic (EE)) with two different (glazed (G); polished (P)) surface preparations. A total of 90 IRC and 120 ceramic discs, 8 mm in diameter and 2 mm thick, were prepared. E2 and EE specimens were randomly divided into two groups (n=30). One group was glazed (GE2; GEE), while the other group was polished (PE2; PEE) the same as the IRCs. The specimens in each group were subsequently divided into three subgroups: control (C), DT, and TP. Ra (μm) was evaluated with a profilometer. Data were analyzed by Kruskal Wallis, followed by the Dunn's multiple comparison tests P0.05. PE2 and PEE were not affected by DT or TP P>0.05, while GE2 and GEE exhibited significant roughening after TP P<0.05. Surface roughness of IRCs and glazed ceramics can be affected by PPP applications