Creating 3D constructs with cranial neural crest-derived cell lines using a bio-3D printer.

Objectives: The development of bio-three-dimensional (bio-3D) printers has led to significant advances in regenerative medicine. Three-dimensional constructs, including spheroids, are maintained by extracellular matrix proteins secreted by cells so that the cells can be cultured in conditions closer to the physiological environment. This study aimed to create a useful 3D construct as a model of the dentin-pulp complex.

Establishment of a novel protocol for formalin-fixed paraffin-embedded organoids and spheroids.

Three-dimensional (3D) cell culture models such as spheroids and organoids are widely used in the field of experimental biology. To analyze these 3D experimental models, formalin-fixed paraffin-embedded (FFPE) sections are superior to whole-mount imaging for some experimental purposes, such as exploring samples with a depth limitation of primary antibody penetration immunohistochemically. However, tiny 3D cell culture samples are difficult to embed in paraffin and acquire appropriate sections.

Case series of drug-induced open bite: Extrapyramidal symptoms related to psychotropic medications.

Introduction: Drug-induced open bite is one of the extrapyramidal symptoms with abnormal tonus of muscles and is rarely recognized in dentistry. This is a retrospective case study to investigate clinical characteristics including detailed complaints in patients with drug-induced open bite.

Methods: Of the outpatients who first visited the psychosomatic dental clinic at the Tokyo Medical and Dental University Hospital between September 2013 and September 2022, the patients diagnosed with drug-induced open bite were involved in this study.

Case report: Open bite as an extrapyramidal side effect with aripiprazole, a dopamine partial agonist.

Long-term, fixed-point posttreatment observation of orthodontically treated patients provided us with the opportunity to capture the onset, development, and improvement of open bite, a type of malocclusion. Based on the chronological sequence of events, i.e.