Publications by authors named "R Felizardo"

Article Synopsis
  • The study evaluated the accuracy of three commercial and one open-source deep learning solutions for automatic tooth segmentation in cone beam computed tomography (CBCT) images from patients with multiple dental impactions.
  • The analysis included 20 CBCT scans and compared expert-generated segmentations with those produced by the deep learning tools, utilizing metrics like Dice similarity coefficient (DSC) and normalized surface distance (NSD) for evaluation.
  • Overall, while all methods demonstrated good efficiency with average NSD around 95%, two solutions (Diagnocat and DentalSegmentator) outperformed others, highlighting variability in accuracy depending on the complexity of the cases.
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Dentigerous cysts, if left untreated, can grow significantly and weaken the mandible, posing risks of pathological or iatrogenic fracture. Treatment options may include decompression, marsupialization, and enucleation, which are available, with the choice being multifactorial and tailored to each case. This article describes the management of two complex dentigerous cysts at risk of fracture, one about an 84-year-old woman and the second about a 41-year-old man.

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Amelogenesis imperfecta (AI) is a group of rare genetic conditions characterized by quantitative and/or qualitative tooth enamel alterations. AI can manifest as an isolated trait or as part of a syndrome. Recently, five biallelic disease-causing variants in the RELT gene were identified in 7 families with autosomal recessive amelogenesis imperfecta (ARAI).

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Aim: Oligodontia (OD) is a rare developmental condition characterized by the absence of six or more teeth. Dental implant placement may be challenging due to anatomical factors. This study aims to evaluate the alveolar bone dimensions in OD patients compared with controls.

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Objective: Oncology patients are vulnerable to skin breakdown. The primary purpose of this study was to estimate the prevalence of skin tears (STs) in hospitalised patients with cancer and to explore related sociodemographic and clinical factors.

Method: This was an observational, epidemiological, cross-sectional study conducted in an oncology hospital in the city of São Paulo.

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