Marina de Deus Moura de Lima

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Leukoplakia, a common lesion in the oral cavity, is considered a premalignant lesion that can develop into carcinoma. In 1986, a group of pathologists described a variant of epithelial dysplasia and named it "koilocytic dysplasia" (KD). This article presents a case of KD that was identified for 12 years as "carcinoma in situ". Even after removal of the(More)
BACKGROUND MDM2, P53, P21(WAF1) and pAKT are proteins associated with the balance between cell death and survival. There are many hypotheses regarding the role of these proteins in salivary gland tumours. However, many molecular events that activate or inactivate regulatory genes remain unknown. The aim of this study was to evaluate and to correlate MDM2,(More)
Blue nevus is a benign, acquired melanocytic lesion that typically manifests as an asymptomatic, slate-blue or blue-black, smooth-surfaced macule or papule. It usually measures less than 4 mm in diameter. Intraoral melanocytic nevi are uncommon compared to those found in the skin, with the exception of the blue nevus. The blue nevus is proportionally more(More)
The p53 protein can be altered virtually in all human cancers. In the absence of p53 mutations, p53 inactivation is possible via complex formation with other proteins, such as Mdm2. Previous studies have shown an overexpression of Mdm2 and lack of p53 expression in pleomorphic adenomas. The pAkt protein is closely related to Mdm2, and has not been(More)
This article presents a case report (including the 10-year follow-up) of a 10-year-old patient who suffered displacement of the maxillary right central incisor, intrusion of the maxillary left central incisor, and crown fractures to the mesial angles of these teeth as a result of dental trauma. Treatment involved an interdisciplinary approach that utilized(More)
PURPOSE To determine the prevalence of molar-incisor hypomineralization (MIH) in children and possible factors associated with this disorder. METHODS This was a cross-sectional observational study of 594 11- to 14-year-olds from Teresina, Piauí, Brazil. The diagnosis of MIH was made based on criteria set by the European Academy of Pediatric Dentistry. To(More)
The scope of this study was to evaluate the prevalence and severity of dental fluorosis among 11 to 14-year-old schoolchildren in Teresina, Piauí, Brazil, which is a tropical city with a fluoridated public drinking water supply. It involved a cross-sectional observational study on a sample of 571 students in public and private schools. Informed Consent(More)
A 12-year-old boy presented for dental care 35 days after he fell from his bicycle. Clinical and radiographic examinations revealed a longitudinal crown-root fracture with pulp exposure in the maxillary left central incisor. The radiograph also suggested necrosis of the maxillary right central incisor. Urgent treatment of the left central incisor involved(More)
PURPOSE This study's purpose was to investigate the prevalence of dental fluorosis in children, whose parents had participated in an oral health program when the children were between zero and three years old, residing in a city with fluoridated water. METHODS Group 1 consisted of 128 eight- to 12-year-olds whose parents had visited a program on at least(More)
OBJECTIVE This study presents 38 cases of primary molars with necrotic pulps treated with antibiotics-based paste. CASE REPORT The technique consisted of necrotic tissue removal of the pulp chamber, using spoons excavators and low speed drills. Pulp cavity was washed with saline solution and dried with sterile cotton balls. Then an antibiotic paste(More)