Differences among oral carcinomas arising de novo from those associated with oral potentially malignant disorders: a systematic review and meta-analysis.

OBJECTIVE: To analyze the frequency of sequential oral squamous cell carcinomas (s-OSCC), preceded by oral potentially malignant disorders, and OSCC de novo (OSCC-dn) and explore differences in their clinicopathologic presentations. STUDY DESIGN: A structured electronic search strategy identified studies that analyzed frequency, clinical, biological, demographic, biomarkers, and prognostic features of s-OSCC and OSCC-dn according to PRISMA guidelines in PubMed, Scopus, Cochrane Library, and Google Scholar, up to January 31, 2023. Inclusion criteria were original English, Spanish, Portuguese, French, Italian, and German cross-sectional, cohort, and case-control studies. The quality of studies was assessed using the Agency for Research and Health Quality tool and the Newcastle-Ottawa Scale tool. RESULTS: The final selection included 40 studies. OSCC-dn and s-OSCC represent, respectively, 71% and 29% of cases of OSCC (P = .00), showing a higher percentage of T1 or of T1+T2 in s-OSCC (P < .0001). The association meta-analysis showed OSCC-dn with a significant association. The meta-analysis showed that s-OSCC was significantly associated with smaller tumor size, absence of distant metastases, relapses, male sex, and tumor sites different from tongue; and OSCC-dn was associated with more advanced tumor size, more regional and distant metastases, more advanced stages, and worse survival. CONCLUSIONS: S-OSCC was less frequent than expected. OSCC-dn seems to have specific clinical, biological, and prognostic features. Future perspectives on oral cancer prevention should address novel approaches and alternatives to screening, such as urgent referral of OSCC-dn.

Management of cervicofacial infection: a 7-year retrospective study.

OBJECTIVE: We aimed to describe and analyze the epidemiologic and clinical variables associated with, treatment for, and development of cervicofacial infection (CFI). STUDY DESIGN: We retrospectively examined 201 patients older than 14 years who had met the CFI diagnostic criteria and whose treatment required hospitalization and intervention under general anesthesia at our hospital. We performed chi-square tests to compare proportions in categorical variables and either the Student t test or the Wilcoxon signed-rank test to compare quantitative variables. We performed an analysis of variance to compare 3 or more categories and either Pearson or Spearman correlation coefficient analysis to examine the correlations between quantitative variables. RESULTS: The majority (85.07%) of the CFIs were of odontogenic origin. The mean hospitalization length was 4.58 days. Patients with diabetes who used tobacco and/or alcohol had a significantly longer length of hospitalization and several postoperative complications.The most common symptoms were pain, trismus and toothache. Symptoms of fever and nausea were associated with longer hospitalization. The most affected anatomic spaces were submandibular and pterygomandibular. Buccal and infraorbital, temporal, and parotid spaces were associated with longer hospitalization. CONCLUSIONS: Most CFIs are of odontogenic origin. Diabetes and tobacco and alcohol use are important risk factors. Treatment should be surgical and target the cause of infection. Timely referrals are important when patients present symptoms compatible with CFI for immediate treatment.

Unusual clinical presentations of plasma cell mucositis involving oral mucosa: Presentation of 2 cases and review of the literature.

OBJECTIVE: Plasma cell mucositis (PCM) is a non-neoplastic plasma cell disorder of the upper aerodigestive tract with a high impact on life quality. Less than 70 cases were reported in the literature. The objective of this study was to report 2 cases of PCM. A concise review of the literature is also presented. STUDY DESIGN: Two cases of PCM that presented during the COVID-19 quarantine are reported. The inclusion criteria for the literature review were English-indexed case reports of the last 20 years. RESULTS: Cases were treated with meprednisone. As mechanical trauma was proposed as a triggering factor, its control was also considered. Patients were followed with no relapses. There were 29 studies included. The mean age was 57 years, with a male predominance, different clinical phenotypes, and intensely erythematous mucosa as a classical finding. The most frequent site was the lip, followed by the buccal mucosa. The final diagnosis is clinicopathologic. CD138 expression is a hallmark of plasma cells, frequently aiding PCM diagnosis. Plasma cell mucositis treatment is mostly symptomatic, and several therapeutic modalities have been mostly unsuccessful. CONCLUSIONS: Diagnosing plasma cell mucositis becomes challenging as many lesions may mimic other conditions. Consequently, in these cases, the diagnostic process should gather clinical, histopathologic, and immunohistochemical data.

Schwannoma intraóseo mandibular: reporte de un caso clínico / Mandibular intraosseous schwannoma: a clinical case report

Objetivo: El schwannoma es un tumor neuroectodérmi- co benigno de la vaina nerviosa o vaina de mielina formada por células de Schwann. Aproximadamente entre el 25 y el 48% de los casos presentan localización en el territorio cer- vicofacial, especialmente en los tejidos blandos de esta re- gión. Se los puede clasificar como schwannomas periféricos o intraóseos, éstos últimos también denominados centrales. Los schwannomas intraóseos son poco comunes, constituyen menos del 1% de los schwannomas presentes en la región en cuestión y menos del 0,2% de todos los tumores primarios óseos. El presente trabajo tiene como objetivo reportar un caso clínico de un schwannoma intraóseo mandibular, revi- sando aspectos clínicos, radiográficos y anatomopatológicos. El schwannoma intraóseo es una entidad poco común, o al menos se encuentra en una condición de subregistro en Argen- tina, por lo que este caso constituye una rareza. Caso clínico: Se presentó a la consulta una paciente de 30 años de edad, derivada al servicio de Cirugía y Trau- matología Bucomaxilofacial del Hospital "Parmenio Piñero" de la Ciudad Autónoma de Buenos Aires por su odontólogo de cabecera, a raíz de un hallazgo radiográfico durante un control de rutina. Se planificó realizar una biopsia incisio- nal, cuyo resultado anatomopatológico fue compatible con el diagnóstico de schwannoma intraóseo. Se procedió a realizar la enucleación completa. Finalmente, la paciente evolucionó sin complicaciones (AU)

Aim: Schwannoma is a benign neuroectodermal tumor of the nerve sheath or myelin sheath formed by Schwann cells. Approximately between 25 and 48% of the cases are located in the cervicofacial territory, especially in the soft tissues of this region. They can be classified into peripheral and intraosseous schwannomas, the last one can also be reported as central. In- traosseous schwannomas are rare, constituting less than 1% of schwannomas present in the region and less than 0.2% of all primary bone tumors. This publication aims to report a clin- ical case of mandibular intraosseous schwannoma, reviewing clinical, radiographic and anatomopathological aspects. In- traosseous schwannoma is a rare entity, or at least is under a condition of underreport in Argentina, so this case is a rarity. Clinical case: A 30-year-old patient, referred to the Buccomaxillofacial Surgery and Traumatology service of the "Parmenio Piñero" Hospital of Ciudad Autónoma de Bue- nos Aires by her dentist, because of a radiographic finding during a routine check. An incisional biopsy was performed, the anatomopathological result of which was compatible with the diagnosis of intraosseous schwannoma. A complete enu- cleation was performed under local anesthesia. Finally, the patient evolved without complications (AU)

False cheilitis (fausse cheilitis) as a clinical manifestation of oral secondary syphilis.

BACKGROUND: Syphilis is the oldest sexually transmitted infectious disease in humanity. In the last decades, it was noted the re-emergence of the disease, and actually it remains an important public health problem. Oral mucosa could be affected by the infection. Oral manifestations are commonly associated with secondary syphilis. It was described that the labial commissure could be involved as a split papule, also known as false cheilitis (FC). However, this clinical manifestation is poorly described in current literature. AIM: This brief report aims to determine the frequency of FC in patients diagnosed with secondary syphilis in our institution during the period 2009-2019. MATERIAL & METHODS: A cross-sectional retrospective study was conducted using the medical records of the Oral Medicine Department, Facultad de Odontología, Universidad Nacional de Córdoba, Argentina. The cases included were patients with provisional diagnosis of secondary syphilis with oral manifestations, confirmed by laboratory tests. Collection of clinical and serological data was performed. Absolute and relative values were obtained. RESULTS: In this study, 58 patients (26 males and 32 females) with an average age of 34.70 years old were included. The frequency of false cheilitis in these patients was 13% (8/58). All these patients with false cheilitis and secondary syphilis were young females with an average age of 25.12 years old. These lesions presented as angular cheilitis with an unilateral pattern with painful fissured papules associated with other oral lesions such as fissures, intraoral papules, tongue depapillation, white or red plaques, and the evidence of submandibular lymphadenopathies when examining the head and neck region. CONCLUSION: Our findings suggest that when angular cheilitis presents in young females as a painful, unilateral lesion, in the clinical context of other lesions and lymphadenopathies in the head and neck region, it could represent a suspicious clinical sign of syphilis. Considering the global re-emergence of sexually transmitted diseases, dentists should be aware of the oral clinical manifestations of syphilis as they play a significant role in the early detection of these conditions.

Clinical management of alveolar osteitis. A systematic review / Manejo clínico de la osteítis alveolar. Una revisión sistemática

Background: Alveolar Osteitis (AO) is one of the most common complications of tooth extraction. Several thera-peutic interventions have been described for the treatment of AO, however, there are no treatment standardizedprotocols. The aim of this study was to conduct a systematic review on the efficacy in pain control of the differenttreatments for AO. The feasibility of the application of these interventions is also discussed.Material and Methods: A structured electronic and hand search strategy was applied to PubMed, Scopus, Co-chrane Library, OpenGrey, and Google Scholar between January 2010 and July 2020 to identify studies accordingto PRISMA guidelines. The inclusion criteria were original English and Spanish clinical trials that analyzed pain-control parameters according to visual analog scale (VAS, 0-10 scale), or pain relief patients’ percentages. Thosetreatments that reach VAS ≤ 4 on day 2 or before; or ≥ 85% of patients with absence of pain symptoms at day 7 orbefore were considered acceptable for their recommendation.Results: The final review included 17 clinical trials. Among them, there were analyzed a total of 39 different AOtreatments. 53,8% of the treatments fulfill the proposed parameters for pain control.Conclusions: Treatment alternatives are multiple, heterogeneous, and difficult to compare. The management ofAO is summarized in basic (intra-alveolar irrigation) and specific procedures (Alveogyl®, Neocones®, SaliCeptPatch®, Low-Level Laser, Platelet-Rich Fibrin) that reach pain control success. They could be selected accordingto their availability and advantages or disadvantages.(AU)

Lichenoid proliferative leukoplakia, lichenoid lesions with evolution to proliferative leukoplakia or a continuum of the same precancerous condition? A revised hypothesis.

BACKGROUND: Multiple white plaques of the oral mucosa are usually associated with potentially malignant disorders such as oral lichen planus, oral lichenoid lesions and proliferative verrucous leukoplakia. Previous studies in the current literature describe a potential clinical overlap in these entities. The aim of this study is to review clinicopathological and evolutive features of these Oral Potentially Malignant Disorders highlighting the dynamic changes of diagnoses. DISCUSSION: It was previously hypothesized that a subset of patients with oral lichen planus or oral lichenoid diagnosis, could develop multiple white plaques during the natural history of the disease, fulfilling diagnostic criteria for proliferative verrucous leukoplakia. Consequently, these entities could, under certain conditions, obey a continuum of the same precancerous condition in the context of the field cancerization theory, increasing the risk of malignant transformation. Nevertheless, there is limited scientific evidence concerning this issue. CONCLUSION: Further studies are needed to understand the biological and evolutive features of the link between these oral potentially malignant disorders. Regardless of its diagnosis, these patients with multifocal white lesions must be carefully monitored to detect early malignant transformation.

[Myelodysplastic syndrome, osteoporosis and medication-related osteonecrosis of the jaw: a case report]. / Síndrome mielodisplásico, osteoporosis y osteonecrosis maxilar asociada a medicamentos antirresortivos: reporte de un caso.

Introduction: Medication-related osteonecrosis of the jaw is a frequent collateral effect found in patients under antiresorptive treatments. Malignancies such as multiple myeloma, breast and prostate cancer as well as bone-metabolic disorders such as osteoporosis, lead the indications for these antiresorptive therapies. Even with a low frequency, myelodysplastic syndromes are also entities that have previously been associated with the development of jaw osteonecrosis. Objective: the aim of this study is to present a case of a 78-year-old male patient with myelodysplastic syndrome and secondary osteoporosis, treated with high-dose Zoledronic Acid and who developed a clinical scenario compatible with medication-related osteonecrosis of the jaw during its evolution. Methodology: : the case was recorded and treated in the Oral Medicine Department, Facultad de Odontología, Universidad Nacional de Córdoba, during a two-years period with a partial resolution, which recurred fourteen months later, where finally therapeutic success was achieved through a conservative management. Conclusion: Due to the increasingly use of antiresorptive drugs, the development of jaw osteonecrosis is possible associated with less frequent pathologies, such as myelodysplastic syndrome. Treatment success in these patients depends on interdisciplinary management and a rigorous clinical, medical and dental follow-up.

Introducción: La osteonecrosis maxilar asociada a medicamentos es una complicación encontrada en pacientes bajo tratamiento con drogas antirresortivas. Patologías oncológicas como mieloma múltiple, cáncer de mama y próstata y alteraciones óseas-metabólicas como la osteoporosis lideran las indicaciones para estas terapias antirresortivas. Aún con una baja frecuencia, los síndromes mielodisplásicos también son entidades que previamente han sido vinculadas al desarrollo de osteonecrosis. Objetivo: el objetivo de este trabajo es presentar un caso de un paciente masculino de 78 años con síndrome mielodisplásico y osteoporosis secundaria, tratado con Ácido Zoledrónico a altas dosis y que en su evolución desarrolló un cuadro clínico compatible con osteonecrosis maxilar asociada a medicamentos. Metodología: el caso fue registrado y tratado en la Cátedra de Estomatología "A" de la Facultad de Odontología, Universidad Nacional de Córdoba, durante un periodo de dos años con una resolución parcial del cuadro, el cual recurrió a los catorce meses, donde finalmente se llegó al éxito terapéutico mediante terapéuticas conservadoras. Conclusión: debido al uso cada vez más extendido de fármacos antirresortivos, es posible el desarrollo de osteonecrosis maxilar asociada a patologías menos frecuentes, como el síndrome mielodisplásico. El éxito del tratamiento en estos pacientes depende del manejo interdisciplinario y de un riguroso seguimiento clínico médico y odontológico.