Agrandamiento gingival inducido por medicamentos. Reporte de un caso clínico / Drug-Induced Gingival Enlargement. A Clinical Case Report

Antecedentes: El agrandamiento gingival inducido por medicamentos es una condición clínica frecuente en pacientes que ingieren anticonvulsivos, inmunosupresores y bloqueadores de los canales de calcio. La prevalencia de agrandamiento gingival inducido por medicamentos es del 3 % al 20 % en el grupo de las condiciones gingivales inflamatorias. Todos estos medicamentos producen lesiones clínicas y características histológicas indistinguibles unas de otras, que llegan a afectar la función y la estética de los pacientes afectados. Objetivo: Describir el manejo terapéutico integral y el seguimiento a 12 meses de una paciente con agrandamiento gingival inducido por tacrolimus y amlodipino. Descripción del caso: Una mujer de 22 años con discapacidad mental limítrofe y receptora de trasplante renal se remitió al servicio de Odontología del Hospital Infantil Universitario de San José (Bogotá, Colombia) por presentar agrandamiento gingival. El examen clínico mostró un índice de placa de O'Leary del 84,3 %, in flamación generalizada y bolsas gingivales de 4-6 mm. El equipo de trasplante renal revisó el protocolo de tratamiento periodontal que incluyó: trabajo con la familia para red de apoyo, diseño de un programa personalizado de higiene oral, gingivectomía y mantenimientos periodontales periódicos. Esta estrategia terapéutica permitió reducir el índice de placa y lograr un resultado clínico favorable. Conclusión: La condición sistêmica y psicológica de la paciente requirió desarrollar un plan de tratamiento ajustado a sus necesidades. Pacientes susceptibles deben ser instruidos sobre la importancia de tener prácticas adecuadas de higiene oral y ameritan ser incluidos en programas de mantenimiento periodontal.

Background: Gingival enlargement induced by the use of drugs is a frequent clinical condition in patients who take anticonvulsants, immunosuppressive agents and calcium channel blockers. The gingival enlargement prevalence, as induced by drug use, is from 3% to 20% in the group with inflammatory gingival conditions. All these drugs cause clinical lesions and histological characteristics indistinguishable from one another, which eventually affect the function and aesthetics of the patients. Objective: To describe a comprehensive therapeutic management and the 12-month following in a patient with gingival enlargement induced by the use of tacrolimus and amlodipine. Case Description: A 22 year-old woman with Borderline Personality Disorder who also underwent a kidney transplant was referred to the dental service in the Hospital Infantil Universitario de San José (Bogotá, Colombia) due to gingival enlargement. The clinical examination showed an O'Leary plaque index of 84.3%, extended inflammation and gingival pockets about 4-6 mm. The kidney transplant team checked the periodontal treatment protocol that included: partnering with the family as a support network, design of a customized oral hygiene program, gingivectomy and regular periodontal maintenance. This therapeutic strategy allowed to reduce the plaque index and resulted in a favorable clinical condition. Conclusion: The systemic and psychological status of the patient required to design a treatment plan customized to her needs. Susceptible patients should be educated on how important it is to follow the appropriate oral hygiene practices and are eligible for periodontal maintenance programs.

Oral lesions associated with hydroxyurea treatment.

Hydroxyurea (HU) is an antimetabolic agent commonly used in myeloproliferative disorders and hematological diseases as well as in severe psoriasis. Despite of usually be well tolerated, sometimes it can induce immunosuppression and mucocutaneous adverse effects associated with discomfort or pain. Nevertheless, oral mucosal adverse reactions are extremely uncommon and present as ulcers, tongue depapilation and dyschromia. Complete remission of adverse effects is usually observed after withdrawal of the medication. The aim of this paper is to report two patients with oral lesions related to HU treatment. T0 he patients were adequately managed by changing hydroxyurea with imatinib mesilate. Oral lesions are rare complications of long-term hydroxyurea treatment and may be an indication of stopping therapy and substitution with imatinib mesilate.

Tatuagem extensa por amálgama em mucosa gêngivo-alveolar / Extensive amalgam tattoo on the alveolar-gingival mucosa

Tatuagens por amálgama são lesões pigmentadas, exógenas, de frequente ocorrência na mucosa bucal, que resultam da introdução acidental de partículas de amálgama nos tecidos moles. O diagnóstico da tatuagem por amálgama é simples, geralmente, baseado em achados clínicos, complementado pela história recente ou pregressa de remoção de restauração por amálgama. Radiografias intraorais podem ser úteis na detecção de radiopacidade, associadas à partícula de amálgama. Nos casos em que as tatuagens por amálgama não permitem diferenciação de outras lesões melanocíticas, o exame histopatológico deve ser realizado. Os autores relatam à ocorrência de lesão extensa por tatuagem de amálgama com confirmação histopatológica.

Amalgam tattoos are common exogenous pigmented lesions of the oral mucosa occurring mainly by inadvertent placement of amalgam particles into soft tissues. The diagnosis of amalgam tattoo is simple, usually based on clinical findings associated with presence or history of amalgam fillings removal. Intraoral X-rays may be helpful in detecting amalgam-related radiopacity. In cases where amalgam tattoo cannot be differentiated from other causes of oral pigmentation, a biopsy should be performed. This article deals with an extensive amalgam tattoo lesion which required a biopsy for a definitive diagnosis.

Manifestações bucais em crianças com dentição decídua expostas passivamente ao tabaco / Oral manifestations in children with deciduous dentition passively exposed to tobacco

A exposição passiva ao tabaco é um problema médico e social que leva o não fumante a sofrer uma série de doenças, tanto sistêmicas como de repercussão bucal. Este trabalho apresenta uma revisão da literatura que relaciona o tabagismo passivo com o risco de cárie dental e alterações gengivais na dentição decídua, com o propósito de levar ao conhecimento do profissional cirurgião-dentista um tema não muito difundido e instruí-lo na sua prevenção.

Plasma Cell Granuloma in Cyclosporine-Induced Gingival Overgrowth: A Report of Two Cases with Immunohistochemical Positivity of Interleukin-6 and Phospholipase C-gamma1

We report two cases of gingival plasma cell granuloma in a 34-yr-old and 40-yr-old two male renal transplant recipients with cyclosporine A (CsA)-induced gingival overgrowth (GO). Histologically, these lesions were composed of mature plasma cells, showing polyclonality for both lambda and kappa light chains and fibrovascular connective tissue stroma. In addition to the fact that CsA-induced plasma cell granuloma is rare, the salient features of our cases were the secretion of interleukin-6 and overexpression of phospholipase C-gamma1 of the tumor cells, which may explain the mechanisms of CsA- induced GO.

Agrandamientos gingivales inducidos por drogas / Drug-induced gingival overgrowth

El objetivo de este trabajo es mostrar al lector los diferentes medicamentos y agentes terapéuticas que pueden ocasionar como efecto colateral, cambios en los tejidos periodontales, sobre todo en la encía. Estos agentes pueden clasificarse en medicamentos sistémicos, compuestos que se aplican en forma tópica y metales pesados. Entre los medicamentos sistémicos más comunes tenemos fenitoína, nifedipinas, ciclosporinas, valproato de sodio. Los cambios que producen estas drogas se relacionan especialmente con la encía en forma de agrandamiento gingival. Revisar algunos aspectos de estas drogas como generalidades farmacológicas, acción sobre el periodonto, diversas hipótesis sobre la patogénesis estas drogas, entre ellas la presencia de fibroblastos sensibles a la fenitoína, aspectos clínico histológicos y tratamiento.

Some therapeutic agents and drugs may induce changes in the periodontal tissues, specially he gingivae. They are classified as sistemic drugs, compounds that may be applied topically and heavy metals. Among the most commonly used sistemic drogs we can find Fenitoyn Nifedipins- Ciclosporin, sodium valproate wich gene rally produce gingival enlargement. This artice reviews farmacocinetics, involvement of periodontal tissue, pathogenesis, like sensitised fibroblast, to Fenitoyn, as well as clinical and histologic changes produced by these drugs. Treatment will also be discussed.

Chronic industrial exposure to lead in 63 subjects. I. Clinical and erythrokinetic findings.

Clinical, biochemical, haematological and erythrokinetic studies were performed on 63 adult males with prolonged lead exposure. Their most common symptoms and findings were abdominal pain (62%), gingival lead lines (48%), headache and/or dizziness (33%), muscle cramps (32%), anaemia (19%), and fatigue (18%). Colicky abdominal pain (27%) and gingival lead lines correlated with urinary lead excretion. Anaemia was mild, but more frequent in the subjects with the greatest urinary lead excretion. Other associated findings were: higher reticulocyte counts and more basophilic stippling of the RBCs, more sideroblasts and greater erythroid hyperplasia of the bone marrow, more reduction in 51Cr-tagged RBC survival time, smaller RBC mass, a more rapid plasma iron clearance, a greater plasma iron turnover and greater utilization of 59Fe in subjects with urinary lead excretion of greater than 100 microng/day in comparison with the remainder and normal controls. These findings suggest that minimal chronic exposure to lead causes an increased haemolysis with resulting increased production of erythrocytes.