Background: Oral carcinoma cuniculatum (CC) is a rare variant of squamous cell carcinoma. It exhibits a locally aggressive behaviour, and its histopathology poses a diagnostic challenge, as it can be mistaken for other conditions. We present five cases of oral CC treated at our institution and conduct a comprehensive review of the current literature.
View Article and Find Full Text PDFBackground: Removable clear aligners have become very popular in the last few decades, but they are still little used in the field of orthognathic surgery (OS). The objective of this study was to compare periodontal health and quality of life (QoL) associated to postsurgical orthodontic treatment.
Material And Methods: Patients with dentofacial deformities undergoing OS were randomly allocated to receive postsurgical orthodontic treatment with either fixed orthodontic appliances or Invisalign.
Malignant tumours arising in the paranasal sinuses or maxilla usually spread to the surrounding regions. The skull base and the anterior cranial fossa are frequently affected as well. When the resection of a tumour involves an orbital exenteration, a transconjunctival-perilimbic incision can be added to a coronal approach in order to preserve the eyelids and the conjunctiva, avoiding cutaneous midfacial incisions.
View Article and Find Full Text PDFPremise: Abscission zones (AZ) are specialized cell layers that separate plant parts at the organ junction upon developmental or environmental signals. Fruit or seed abscission has been well studied in model species because of its crucial role for seed dispersal. Previous work showed that AZ localization differs among species of Poaceae and that AZ formation is histologically and genetically distinct in three distantly related grass species, refuting the idea of a broadly conserved module.
View Article and Find Full Text PDFObjective: This article describes the adaptation, development, and psychometric properties of survey instruments to assess outcomes of bystander-focused violence prevention efforts among high school students, including media literacy, rape myths, bystander readiness, bystander barriers and facilitators of bystander action, bystander intentions, perceptions of school personnel helping, perceptions of peer helping, and victim empathy.
Method: The study was based on data collected from 3,172 high school students across 25 schools in northern New England.
Results: Overall, the measures demonstrated acceptable fit indices in multilevel exploratory and confirmatory factor analyses.