Publications by authors named "Fernanda P Yamamoto-Silva"

Purpose: This report aims to present an interdisciplinary approach to diagnosing and treating a case of Common Variable Immunodeficiency (CVID), an inborn error of immunity, resulting in successive complications following a third molar extraction procedure.

Case Presentation: The patient, a 37-year-old Caucasian female, sought a specialist for the extraction of an impacted lower third molar associated with dentigerous cyst. Due to the possibility of mandibular fracture, a bone fixation system was used in the region.

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Purpose: The aim of this study was to evaluate the influence of different cone-beam computed tomography (CBCT) acquisition protocols on reducing the effective radiation dose while maintaining image quality.

Materials And Methods: The effective dose emitted by a CBCT device was calculated using thermoluminescent dosimeters placed in a Rando Alderson phantom. Image quality was assessed by 3 experienced evaluators.

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Objective: To evaluate the diagnostic capability of artificial intelligence (AI) for detecting and classifying odontogenic cysts and tumors, with special emphasis on odontogenic keratocyst (OKC) and ameloblastoma.

Study Design: Nine electronic databases and the gray literature were examined. Human-based studies using AI algorithms to detect or classify odontogenic cysts and tumors by using panoramic radiographs or CBCT were included.

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Background: Traumatic Ulcerative Granuloma with Stromal Eosinophilia, commonly known as Eosinophilic Ulcer, is a reactive solitary and self-limiting benign lesion. It manifests as a punched-out ulcer with a distinct surrounding indurated border, often raising concerns about malignancy.

Methods: A 44-year-old male presented with a painless, indurated tongue ulcer evolving over three months.

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Article Synopsis
  • * A total of ten studies were analyzed, involving 917 leprosy patients, revealing that about 6% showed oral alterations, with plaques, infiltrations, and macules being the most common issues.
  • * The findings indicate that while there's no specific oral sign of leprosy, the disease can affect the mouth in various ways, influenced by the type of leprosy and the stage of treatment.
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Objective: To assess the accuracy of cone-beam computed tomography (CBCT) for determining gingival thickness.

Material And Methods: Searches were undertaken in PubMed/MEDLINE, EMBASE, LILACS, Web of Science, Scopus, LIVIVO, and gray literature (Google Scholar and ProQuest) for studies considered eligible according to the following criteria: cross-sectional observational studies, which compared CBCT accuracy with that of transgingival probing when determining gingival thickness, in adult patients with good periodontal health. No language or time restrictions were applied in this systematic review.

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Objectives: To evaluate the influence of image acquisition parameters (voxel, FOV, kVp, mA) on the accuracy of cone-beam computed tomography (CBCT) in detecting vertical root fracture (VRF).

Material And Methods: Searches were performed in 6 main databases and the gray literature, without restrictions of language or date. Observational clinical studies (OCS) and in vitro-extracted teeth (IV) studies were considered eligible for inclusion when investigating the accuracy (sensitivity, specificity) of CBCT in detecting VRF in human teeth.

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Article Synopsis
  • This study evaluated the effectiveness of artificial intelligence (AI) in deciding whether to extract teeth in orthodontic cases, emphasizing its accuracy in decision-making.
  • The researchers analyzed data from various databases and included six relevant studies, revealing mixed risk levels of bias among them.
  • While AI showed a promising overall accuracy rate of 0.87, the findings should be approached cautiously due to low certainty in the evidence, and AI should not replace human judgment in orthodontic decisions just yet.
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Objective: To undertake a joint analysis of the influence of fracture width, dental thickness and distance of the fracture from the cortical bone on the radiographic diagnosis of vertical root fractures.

Methods: Thirty-six uniradicular bovine teeth were endodontically treated and distributed into three groups according to the remaining root dentine thickness: 1.2 mm, 1.

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Objective: This systematic review was undertaken to determine the risk of oral cancer in patients with chronic graft-vs-host disease (cGvHD).

Study Design: The search was conducted in 6 electronic databases (PubMed/MEDLINE, EMBASE, LILACS, Web of Science, Scopus, and LIVIVO) and gray literature (Google Scholar, Open Gray, and ProQuest) for studies published up to November 2021.

Results: Of the 13 cohorts included in qualitative synthesis, 9 were eligible for the quantitative analysis.

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This report describes a case of reactional osteogenesis associated with the residual roots of the maxillary left first molar (tooth 14) in a 42-year-old woman. During intraoral examination, an extensive carious lesion was observed in the residual roots of tooth 14. On the periapical radiograph, a radiolucent area with well-defined limits and regular shape was observed in association with these roots.

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Background And Objectives: Differences in dental maturation may affect the prognosis and clinical management of traumatized teeth. However, evaluation of the outcomes of dental trauma to the tooth and support structures in an in vivo model involves major methodological and ethical implications. Thus, the aim of the present study was to perform a three-dimensional finite element analysis of permanent maxillary central incisors in different stages of root development under different trauma settings.

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Objectives: The aim of this systematic review was to examine the evidence of the binary histologic grading system capacity for predicting malignant transformation and to compare it with that of the WHO systems.

Material And Methods: A systematic review was conducted, using PubMed, EMBASE, LILACS, Web of Science, Scopus, and LIVIVO databases without any language or timeframe restrictions. Studies were included if they compared the binary and the WHO histologic grading systems in the prediction of malignant transformation of oral epithelial dysplasia (OED).

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Purpose: This study evaluated the influence of a metal artifact reduction (MAR) tool in a cone-beam computed tomography (CBCT) device on the diagnosis of vertical root fractures (VRFs) in teeth with different root filling materials.

Materials And Methods: Forty-five extracted human premolars were classified into three subgroups; 1) no filling; 2) gutta-percha; and 3) metallic post. CBCT images were acquired using an Orthopantomograph 300 unit with and without a MAR tool.

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Objectives: To present an image processing framework to improve the detection of vertical root fractures (VRFs) in digital periapical radiography.

Materials And Methods: Thirty endodontically treated human teeth (15 of them fractured with a metal post inserted into them, and 15 for the control) were enclosed in a dry mandible and radiographed individually. The proposed framework was applied to the raw data, as a preprocessing step, and was composed of four stages: geometric adjustment and negative, denoising, adaptive contrast enhancement, and gamma correction.

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Introduction: The purpose of this study was to determine the volume of dental tissue removed during endodontic access preparation with cone-beam computed tomography (CBCT) comparing two different software.

Methods And Materials: CBCT images of 20 teeth were obtained before and after endodontic access performed with spherical and conical diamond burs. The images were taken with i-CAT Precise system with 0.

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Objectives: This study evaluated factors associated with vertical root fracture in endodontically treated teeth, using a cone-beam computed tomography (CBCT) image database.

Materials And Methods: The sample for this case-control study consisted of 81 CBCT scans of teeth with vertical root fracture (VRF) and 81 CBCT scans of non-fractured teeth, matched by age, sex, and tooth position. The analyzed variables included dentin thickness, an intraradicular post, an adjacent implant, and a missing adjacent tooth.

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A 7-year-old girl presented with necrotic gingival tissue manifesting as large ulcers in the labial and lingual gingival tissue along the region of the mandibular central incisors and right canine. The severe symptoms associated with the gingival lesions were an indication for the use of a topical tetracycline solution. The patient's parent was instructed to prepare the antibiotic solution by crushing a 250-mg tablet of tetracycline in 10 mL of distilled water.

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A 39-year-old woman sought specialized treatment complaining of a large, painful oral ulcer in the right buccal vestibule after receiving emergency endodontic treatment 3 days earlier. The patient reported that the tooth, the mandibular right first premolar, was not isolated with a rubber dam and that she felt the extrusion of a liquid in the buccal tissues. Clinically, a necrotic area with raised erythematous borders was observed in the mandibular right side.

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Introduction: There is evidence that acute periapical lesions present a greater potential for cyst formation. Recently, it was found that these lesions have cells with characteristics of pluripotent stem cells, which may influence cyst development. However, a more complete phenotype investigation of stem cells in a specific sample of periapical abscesses is required.

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The aim of this study was to evaluate the contribution of cone-beam computed tomography (CBCT) in the decision of surgical management for bone lesions of the maxillofacial region. It is a retrospective cross-sectional observational study that includes a sample of panoramic radiography (PR) and CBCT from patients with some type of bone lesion in the maxillofacial region. PR and CBCT images were evaluated by three previously assessed examiners, specialists in oral and maxillofacial surgery.

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Purpose: This study was performed to evaluate the influence of voxel size and the accuracy of 2 cone-beam computed tomography (CBCT) systems in the detection of vertical root fracture (VRF) in the presence of intracanal metallic posts.

Materials And Methods: Thirty uniradicular extracted human teeth were selected and randomly divided into 2 groups (VRF group, n=15; and control group, n=15). The VRFs were induced by an Instron machine, and metallic posts were placed in both groups.

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Purpose: The aim of the present study was to evaluate the effect of alendronate (ALN) on the bone microarchitecture of irradiated rats with estrogen deficiency, using microcomputed tomography (micro-CT) and histomorphometric analysis.

Materials And Methods: Forty adult Wistar rats were subjected to ovariectomy and randomly divided into the following groups: control (CON), ALN, irradiated (IRR), and ALN/irradiated (ALN/IRR). Approximately 50 days after ovariectomy, the hind limbs of the rats in the IRR and ALN/IRR groups were irradiated with 15 Gy of x-radiation.

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