An external root resorption occurred after bleaching and was diagnosed radiographically in a 26-year-old female dental assistant. The resorption was noticed 6 months after bleaching. The involved tooth had no history of trauma. An attempt to stop the resorption by using calcium hydroxide failed. The perforation was corrected surgically with amalgam.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/0030-4220(91)90501-3 | DOI Listing |
J Clin Exp Dent
December 2024
BDS, MSc, MOMSRCPS, MFDTRCSED, FIBMS, FFDRCSI(OSOM), FDSRCS, FDSRCPS, FICD. Professor of maxillofacial surgery. Kurdistan Higher Council of Medical Specialties. Ziraah Square, Erbil, Iraq.
Background: The current study attempts to assess the impact of third molar impaction on external root resorption (ERR) of the adjacent second molars. We aimed to determine the prevalence, severity, and associated factors with ERR in a sample of panoramic radiographs.
Material And Methods: A retrospective cross-sectional study was carried out at teaching hospital.
Folia Morphol (Warsz)
January 2025
Department of Laryngology, Faculty of Medical Sciences in Katowice, Medical University of Silesia in Katowice, Katowice, Poland.
Background: Anthropometric analysis of the midface is essential, especially for rhinoplasty surgeons, medical aesthetics, medical jurisprudence, and anthropology. The aim of this study was to provide data to describe of the anthropometric dimensions of the nose and face among Caucasian young adults in order to establish reference values.
Materials And Methods: The study was conducted among 289 Polish students (115 men and 174 women).
Sleep
January 2025
Courant Institute of Mathematical Sciences, New York University, New York, 10012, USA.
Study Objectives: This paper validates TipTraQ, a compact home sleep apnea testing (HSAT) system. TipTraQ comprises a fingertip-worn device, a mobile application, and a cloud-based deep learning artificial intelligence (AI) system. The device utilizes PPG (red, infrared, and green channels) and accelerometer sensors to assess sleep apnea by the AI system.
View Article and Find Full Text PDFPlant Cell Environ
January 2025
College of Resources and Environmental Sciences, Department of Plant Nutrition, China Agricultural University, Beijing, Haidian, China.
The occurrence of external L-glutamate at the Arabidopsis root tip triggers major changes in root architecture, but the mechanism of -L-Glu sensing is unknown. Members of the family of GLUTAMATE RECEPTOR-LIKE (GLR) proteins are known to act as amino acid-gated Ca-permeable channels and to have signalling roles in diverse plant processes. To investigate the possible role of GLRs in the root architectural response to L-Glu, we screened a collection of mutants with T-DNA insertions in each of the 20 AtGLR genes.
View Article and Find Full Text PDFNature
January 2025
Laboratory for Biological Geochemistry, School of Architecture, Civil and Environmental Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
Increasing soil salinity causes significant crop losses globally; therefore, understanding plant responses to salt (sodium) stress is of high importance. Plants avoid sodium toxicity through subcellular compartmentation by intricate processes involving a high level of elemental interdependence. Current technologies to visualize sodium, in particular, together with other elements, are either indirect or lack in resolution.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!