Evidence for an acceleration of tooth movement in conjunction with the minimally invasive methods piezosurgical corticocision and osteoperforation of the alveolar process in humans is low.

Summary Lycophytes are the earliest diverging extant lineage of vascular plants, sister to all other vascular plants. Given that most species are adapted to ever‐wet environments, it has been hypothesized that lycophytes, and by extension the common ancestor of all vascular plants, have few adaptations to drought. We investigated the responses to drought of key fitness‐related traits such as stomatal regulation, shoot hydraulic conductance (Kshoot) and stem xylem embolism resistance in Selaginella haematodes and S. pulcherrima, both native to tropical understory. During drought stomata in both species were found to close before declines in Kshoot, with a 50% loss of Kshoot occurring at −1.7 and −2.5 MPa in S. haematodes and S. pulcherrima, respectively. Direct observational methods revealed that the xylem of both species was resistant to embolism formation, with 50% of embolized xylem area occurring at −3.0 and −4.6 MPa in S. haematodes and S. pulcherrima, respectively. X‐ray microcomputed tomography images of stems revealed that the decline in Kshoot occurred with the formation of an air‐filled lacuna, disconnecting the central vascular cylinder from the cortex. We propose that embolism‐resistant xylem and large capacitance, provided by collapsing inner cortical cells, is essential for Selaginella survival during water deficit.

PRO SEAL® resisted thermal, mechanical, and chemical loading in vitro, providing protection against white spot lesions.

Use of the self-etching primers (groups B and C) was not associated with patterns of enamel demineralization different from those noted after traditional etching with phosphoric acid (group D). The only significant difference we observed was between the self-etching fluoride-releasing primer (group C) and traditional etching (group D) at the final assessment (T4). Thus, the fluoride-releasing system Transbond™ Plus was advantageous.

In this article, the first name for Theresa Jäcker was incorrect. In addition, Thomas-Michael Präger was not listed in the German conflict of interest. Readers are asked to note the correct name and we apologize for the errors. The editorial team In diesem Beitrag wurde der Vorname von Theresa Jäcker falsch angegeben. Außerdem wurde Thomas-Michael Präger im deutschen Interessenkonflikt nicht genannt. Wir bitten, die korrekte Nennung zu beachten und die Fehler zu entschuldigen. Die Redaktion