The present paper considers the significance of interosseous flexions of the palatal complex in the process of orthocephalization of the rat skull between birth and 7 d p.n. The study is based on a sample of 90 rats divided into 4 age groups, i.e. 0, 4, 7, and 14 d. These rats have been X-rayed, and their photographs subsequently analysed. During the studied period, the constituents of the bony palate, i.e. the horizontal part of the palatine bone, the palatal process of maxilla and the palatal part of premaxilla, increase markedly in length, but with individual differences in growth rate. There is, in the period, a marked decrease in angulation between the cranial base and the palatal plane. This means that the rat skull becomes more orthocranial. There is also a straightening (orthopalatalization) of the palate, as the angle between maxilla and premaxilla becomes more obtuse, and a marked decrease in angulation between the palatine bone and the cranial base. The patterns of angular changes suggest that the process of orthocephalization in the period between birth and 14 d p.n. primarily is a result of an upwards rotation of the palatine bone relative to the cranial base, while interosseous deflections in the palate only play a minor role.
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Postepy Dermatol Alergol
December 2024
Department of Pathology, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland.
Surg Radiol Anat
January 2025
Faculty of Dental Medicine, University of Porto, Porto, Portugal.
Purpose: The greater palatine foramen (GPF) represents the inferior opening of the greater palatine canal and is located posterolaterally on both sides of the hard palate. The aim of this study is to morphometrically characterise the GPF and to determine its anatomical relationships in a Portuguese population.
Methods: A retrospective study was performed based on the clinical records which included all permanent teeth erupted and a cone beam computed tomography (CBCT) of the entire maxilla.
JBMR Plus
February 2025
Division of Biosciences, College of Dentistry, The Ohio State University, Columbus, OH, 43210, United States.
Hypophosphatasia (HPP) is an inherited error in metabolism resulting from loss-of-function variants in the gene, which encodes tissue-nonspecific alkaline phosphatase (TNAP). TNAP plays a crucial role in biomineralization of bones and teeth, in part by reducing levels of inorganic pyrophosphate (PP), an inhibitor of biomineralization. HPP onset in childhood contributes to rickets, including growth plate defects and impaired growth.
View Article and Find Full Text PDFEur Arch Otorhinolaryngol
January 2025
Otorhinolaryngology Department, Hospital Clínico Universitario de Valladolid, Valladolid, Spain.
Purpose: The aim of this study is to obtain the anatomical limits of the parapharyngeal space by transoral surgical approach, in order to objectively determine the types of lesions according to location, where this type of approach is more indicated.
Methods: A prospective, experimental, radio-anatomical study was performed on 10 cryopreserved human heads(20 sides). A transoral approach of the parapharyngeal space was performed determining its anatomical limits by CT navigation.
Diagnostics (Basel)
January 2025
Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70121 Bari, Italy.
Traumatic ulcerative granuloma with stromal eosinophilia (TUGSE) is a benign lesion that may arise from the oral mucosa consisting in an ulcerative lesion usually localized in the tongue or cheek. Palate localization is very rare. /: The aim of this study is to describe a case of TUGSE occurring in the hard palate of an 83 y.
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