Medication-Related osteonecrosis of the jaw involving dental implants: A 16-Year observational study in a single cancer center.

Objectives: The aim of this study was to evaluate the clinicoradiological features and treatment approaches of MRONJ in cancer patients rehabilitated with osseointegrated implants.

Materials And Methods: Medical records of 147 patients who developed MRONJ over a 16-year period were evaluated. Demographic data, type of antiresorptive medication (AR) used, route of administration, frequency, and time of use were collected.

Odontogenic Sarcomas: Clinicopathologic Analysis and Immunohistochemical Expression of BRAF and SOX9 in a Multicenter Series of 10 Cases.

Introduction: Odontogenic sarcomas (OS) are rare malignant mixed odontogenic tumors featuring benign epithelial and malignant ectomesenchymal components.

Materials And Methods: Ten OS cases from seven Oral and Maxillofacial Pathology services were retrospectively reviewed (2000-2024), including clinical, radiographic, histopathologic, and immunohistochemical data (BRAF p.V600E and SOX9).

Clinical and imaging evaluation and therapeutic approach of 42 cases of odontogenic myxomas.

Objective: To analyze the clinical and imaging characteristics and therapeutic approach of odontogenic myxomas (OMs).

Study Design: A retrospective multicenter study was conducted using data from medical records of patients treated at three hospitals in São Paulo, Brazil, between 1996 and 2021. Demographic, clinical, imaging (panoramic radiography and/or computed tomography, CT), and histopathological data were collected.

Brown tumor of hyperparathyroidism in the maxillofacial region: a retrospective study with 19 patients.

Objective: This study aimed to define the epidemiology and treatment approaches for hyperparathyroidism (HPT) and brown tumors, and to determine the time required for bone regeneration at the tumor site following parathyroid surgery.

Study Design: We conducted a 24-year retrospective study involving patients diagnosed with brown tumors secondary to HPT at the University of São Paulo, Brazil. Data were collected from medical records, including information on disease diagnosis, HPT treatment, brown tumor management, laboratory test results, and imaging studies.

New Insights into Ameloblastic Fibromas, Fibrodentinomas, and Fibro-Odontomas: Findings from an International Multicenter Study.

Introduction: Ameloblastic fibroma (AF), ameloblastic fibrodentinoma (AFD), and ameloblastic fibro-odontoma (AFO) are rare mixed odontogenic tumors. While some authors propose that some cases may evolve into odontomas, other tumors with aggressive clinical features suggest a neoplastic origin. A subset of AF and AFD/AFO harbor the pathogenic BRAF p.

Intraosseous benign peripheral nerve sheath tumor of the jaws: report of 4 new cases and a comprehensive literature review.

Benign peripheral nerve sheath tumors (BPNSTs) are a vast, common, heterogeneous group of lesions that are often diagnostically challenging. The head and neck region is recognized as the second most common location for these lesions, especially the tongue. However, BPNSTs occurring centrally within the jaw bones are exceedingly rare.

Report of intraosseous intravascular papillary endothelial hyperplasia associated with an odontogenic cyst in the maxilla and literature review.

Intravascular papillary endothelial hyperplasia (IPEH) represents an uncommon reactive endothelial hyperplastic proliferation. A 46-year-old man experienced increased volume in the right maxilla, elevation of the nasal ala, and swelling of the hard palate with a reddish hue for 3 months. Computed tomography revealed an expansive hypodense region and cortical bone destruction associated with an impacted supernumerary tooth and an endodontically treated tooth.

Malignant tumors affecting the head and neck region in ancient times: Comprehensive study of the CRAB Database.

In the modern world, cancer is a growing cause of mortality, but archeological studies have shown that it is not exclusive to modern populations. The aim of this study is to examine the epidemiologic, social, and clinicopathologic features of head and neck cancers in ancient populations. To do this, we extracted all records that described malignant lesions in the head and neck region available in the Cancer Research in Ancient Bodies Database (CRAB).

DNA content and clinicopathological features aid in distinguishing ameloblastic carcinoma from ameloblastoma.

Background: Ameloblastoma and ameloblastic carcinoma are epithelial odontogenic tumors that can be morphologically similar. In the present study, we evaluated the DNA content and Ki-67 index in the two tumors.

Methods: The paraffin blocks of the tumors were selected to obtain sections for the immunohistochemical reactions and preparation of the cell suspension for acquisition in a flow cytometer.

Clinical outcomes of dental implants in head and neck cancer patients: An overview.

Objective: The aim of this study was to evaluate the clinical outcomes of dental implants (DIs) in patients with head and neck cancer (HNC) treated with radiotherapy (RT), isolated chemotherapy, or bone modifying agents (BMAs).

Study Design: This study was registered in the Prospective Register of Systematic Reviews (CRD42018102772); conducted via the Preferred Reporting Items for Systematic Reviews and Meta-Analyses checklist; and based on PubMed, Scopus, Embase, Cochrane Library, Web of Science, and gray literature searches. The selection of studies was performed in 2 phases by 2 independent reviewers.

Can the prophylactic use of pentoxifylline and tocopherol before dental extractions prevent osteoradionecrosis? A systematic review.

Purpose: This systematic review aimed to determine whether the pentoxifylline and tocopherol (PENTO) protocol effectively reduce the risk of osteoradionecrosis (ORN) in patients undergoing tooth extraction after head and neck radiotherapy.

Methods: We searched PubMed, SCOPUS, LILACS, EMBASE, Web of Science, and Cochrane databases up to August 2022. We considered only studies that included patients diagnosed with head and neck cancer undergoing tooth extraction with PENTO prophylaxis after radiotherapy.

Synchronous jawbone diseases: a multicenter retrospective study.

The aim of this study is to report an original case series of synchronous jawbone diseases. Data of patients seen over 13 years were extracted from the files of three Oral Radiology and Pathology diagnostic centers in Brazil. The clinical, radiographic, and laboratory characteristics were tabulated and analyzed by the authors; the patients were described according to lesion type.

Magnetic resonance imaging texture analysis to differentiate ameloblastoma from odontogenic keratocyst.

The differentiation between ameloblastoma (AB) and odontogenic keratocyst (OKC) is essential for the formulation of the surgical plan, especially considering the biological behavior of these two pathological entities. Therefore, developing means to increase the accuracy of the diagnostic process is extremely important for a safe treatment. The aim of this study was to use magnetic resonance imaging (MRI) based on texture analysis (TA) as an aid in differentiating AB from OKC.

Rhabdomyosarcoma with TFCP2 Rearrangement or Typical Co-expression of AE1/AE3 and ALK: Report of Three New Cases in the Head and Neck Region and Literature Review.

Background: Rhabdomyosarcoma (RMS) harboring EWSR1/FUS-TFCP2 fusions has been recently described as a distinct form of RMS with an aggressive course and predilection for the craniofacial bones, especially the jaws.

Methods: We report three new cases of this rare entity, two from Brazil and one from Guatemala, with detailed clinicopathologic, immunohistochemical, and molecular descriptions. Additionally, we explored the English-language literature searching RMS with TFCP2 rearrangement or typical immunophenotype with co-expression of AE1/AE3 and ALK in the head and neck region.

To extract or not extract teeth prior to head and neck radiotherapy? A systematic review and meta-analysis.

Purpose: Teeth with poor prognosis are generally recommended to be extracted prior to head and neck radiotherapy (RT) to reduce the risk of developing osteoradionecrosis (ORN), although controversies have been reported. The present systematic review aimed to determine whether tooth extraction prior to head and neck RT may be associated with a reduced risk of developing ORN compared to dental extraction during or after RT.

Methods: The review protocol was registered in PROSPERO (CRD42021241631).

Clinicoradiological spectrum of primary aneurysmal bone cysts of the maxillofacial region: A series of 31 cases.

Objectives: The aim of the current study was to analyse the demographic, clinical and radiological features of primary aneurysmal bone cysts (ABCs) involving the maxillofacial region.

Methods: Histologically confirmed cases affecting the maxillofacial region were retrospectively reviewed over a 21-year period (2000-2021). Cases were collected from the archives of five Oral Pathology laboratories from three countries: South Africa, Guatemala and Brazil.

Surgical Treatment of Ameloblastoma: How Does It Impact the Oral Health-Related Quality of Life? A Systematic Review.

Purpose: This study aimed to analyze the impact of surgical treatment on the quality of life of patients diagnosed with ameloblastoma.

Methods: We searched PubMed, Science Direct, LILACS, EMBASE, and Web of Science, up to February 2021, with no time restriction. We considered only studies published in English that evaluated patients diagnosed with ameloblastoma who underwent conservative or radical surgical treatments using a quality of life (QOL) instrument.

Effectiveness of the Conservative Surgical Management of the Ameloblastomas: A Cross-Sectional Study.

Ameloblastoma is a benign, but locally aggressive odontogenic neoplasm, whose appropriate therapeutic management remains highly debatable. The aim of this study was to evaluate the reliability and effectiveness of the two conservative surgical therapeutic protocols (curettage with peripheral ostectomy only and curettage plus cryotherapy) for the management of ameloblastomas. About 53 cases of the ameloblastomas treated in 9 years were retrospectively analyzed regarding their clinical, histopathologic, radiographic, and therapeutic data.

Brain abscesses due to odontogenic infection: Case series.

Brain abscesses due to odontogenic infection are infrequent, but they deserve attention due to the high incidence of serious complications and the high mortality rate. This article aimed to report five cases of cerebral abscess due to odontogenic infection, of patients attended in the Clinical Hospital of Medical School of the University of São Paulo (HCFMUSP). In all cases, treatment consisted of draining the brain abscess, antibiotic therapy and extraction of all teeth responsible for the infection.