Scielo RSS <![CDATA[RSBO (Online)]]> vol. 13 num. 4 lang. pt <![CDATA[SciELO Logo]]> <![CDATA[<b>Post-treatment orthodontic relapse</b>]]> <![CDATA[<b>Association of early life health conditions, nutritional status, and feeding practices with caries prevalence in preschool children</b>]]> Objective: This study aimed to determine whether health conditions in the first year of life, nutritional status and dietary habits throughout life are related to the prevalence of early childhood caries (ECC). Material and methods: Sample consisted of 338 children from public schools. The prevalence of dental caries was assessed by dmf-t index. An anthropometric analysis was conducted for identification of nutritional risk. Data were analyzed using Chi-square and Poisson regression analysis, considering the dependent variables: a) presence of ECC (dmft ≥ 1); b) presence of severe ECC (dmft ≥ 6). Results: It was observed that 64% of the children exhibited ECC (mean dmft 2.97) and 23% suffer from severe ECC (mean dmft 8.2). 28 (11%) were at nutritional risk and more than 30% consumed sweets one or more times a day. It was observed that 8% showed low birth weight, 9% used antibiotics frequently in the first year of life and 67% maintained the habit of nocturnal bottle/breast-feeding after this period. Nocturnal feeding for prolonged time, frequent use of antibiotics and nutritional risk were associated with higher prevalence and severity of caries in the multivariate analysis. Conclusion: These results reinforce the relationship between early life events, nutritional status, and dental caries in primary teeth. <![CDATA[<b>Epidemiological profile of ameloblastoma at Erasto Gaertner Hospital</b>]]> Introduction: Ameloblastoma is the most common benign tumor of odontogenic origin, and represents about 11% of all odontogenic tumors. It is characterized by being locally aggressive and having high recurrence rates. Objective: To evaluate the occurrence of ameloblastoma in the Erasto Gaertner Hospital in patients from 1972 to 2012. In addition, to assess the main treatments, the most prevalent histological variants, the recurrence rate, the anatomical location of the lesion and patient profile. Material and methods: A retrospective study of patients diagnosed with ameloblastoma at the Erasto Gaertner Hospital between the years 1972-2012 was performed. Epidemiological data were collected such as gender, age, race, lesion location, type of surgical procedure, follow-up and recurrence rate; and analyzed using descriptive statistics. Results: A total of 40 patients were selected for the study. The most affected age group was between the third and fifth decade of life, with 19 cases (47.5%), followed by the second and fourth decade, with 14 cases (35%); the sixth decade, with 5 cases (12.5%) and seventh decade with 1 case (2.5%). The patients' ages ranged from 13 to 66 years, with an average age 34.9 years. The mandible was the most affected site, with 38 cases (95%) of cases, and maxilla had only 2 cases (5%). Thirty-eight patients were treated with radical surgery and 5 patients presented recurrence after 1 year of follow-up. Both cases that occurred in maxilla presented recurrence. Conclusion: Recurrence of ameloblastoma decreases significantly when surgery is performed properly, with wide excision and margin. Combination of full tumor resection and reconstruction was the best approach observed in this study. In addition, we recommend a long period of clinical and radiographic follow-up. <![CDATA[<b>Color changes induced by light curing of resin composites</b>]]> Introduction: Color changes that occur after the light-activation of resin composites should be understood. Objective: To evaluated the influence of light-curing devices on the color of resin composites immediately after light-activation and after one-week, at 37ºC, into water storage. Material and methods: Three A2-shade composites (Z100, Z250, and Z350), and four light-curing devices (three halogens and one LED) were evaluated. Seventy-five cylindrical specimens were light-activated for 20s. CIE-Lab color was analyzed using a spectrophotometer. Color changes between uncured and immediately light-activated materials (ΔE1), and between immediately light-activated and one-week-37˚Cwater- stored materials (ΔE2) were obtained. Data were evaluated by two-way Anova, followed by Tukey test (α = 0.05). Results: For ΔE1, composites (p = 0.0008), lights (p = 0.015), and the interaction (p = 0.017) were significant. Z100 showed the smallest value (3.08 ± 1.73). The halogen 210 mW/cm2 device showed the smallest ΔE1 (3.09 ± 1.25), while the LED 200mW/cm2 showed the highest value (4.94 ± 2.37). For ΔE2, composites (p = 0.00016), lights (p < 0.0001), and the interaction effect (p = 0.0002) were significant. Z350 showed the smallest value (2.24 ± 1.17). The halogen 400mW/cm2 device showed the smallest ΔE2 (2.15 ± 2.15), while the halogen device 525mW/cm2 showed the highest value (4.45 ± 2.15). Conclusion: The color of resin composites change significantly from the uncured to the cured and water-aged phases. <![CDATA[<b>Assessment of the Dentistry undergraduates' knowledge on tooth avulsion</b>]]> Introduction: Dental trauma affects mainly children, teenagers and young adults and the anterior teeth. In dental avulsion, the teeth are completely displaced out of the socket. This dentoalveolar lesion is that causing the most severe functional, esthetic, and psychologic damage to the patient. Objective: To evaluate the knowledge level of Dentistry undergraduates on tooth avulsion and verify whether the course period would be associated with the knowledge level. Material and methods: A questionnaire adapted from Fujita et al.. 5, was applied, consisting of three parts, Part 1: general demographic data; Part 2: questions about the experience in tooth trauma Part 3: knowledge about tooth avulsion. The questionnaire was applied to 706 Dentistry undergraduates from Positivo University (PR), in June, 2015. The chi-square test was used to identify differences in responses for different variables, with significance level of 5%. Results: Most of the students were at the age range from 16 to 20 years-old (47.1%), were female (74.7%), were not trained on first-aid care in cases of tooth trauma (73.9%), and never faced a case of tooth avulsion (68.8%). The course period was statistically and positively associated with the knowledge on dental avulsion. Conclusion: The evaluated Dentistry undergraduate students knew how to manage cases of tooth avulsion. Statistically significant differences occurred in relation to the course period and the knowledge on tooth avulsion. <![CDATA[<b>Dental research on collective health at the Meeting of the Sociedade Brasileira de Pesquisa Odontológica (Brazilian Society of Dental Research): 14-year cut-off point</b>]]> Introduction: The Annual Meeting of the Brazilian Society of Dental Research (BSDR) is among the Brazilian prominent scientific events. Since 2001, the event has a new category, so-called Dental Research on Collective Action (DRCA). Objective: To analyze the scientific production in the DRCA category, through abstracts published in the Annals of BSDR, from 2001 to 2015. Material and methods: By active online search, the abstracts published in the Annals of BSDR from the DRCA category, from 2001 to 2015, except for 2012 (n = 771) were accessed. These were then classified by an evaluator into: year of publication (14 years), subject of research (18 categories), age of the sample or living conditions (8 categories), and region of origin (5 regions). Results: The descriptive analysis showed an average rate in DRAC category, in the 14 years analyzed, of 0.03%. The years 2006 (n = 140), 2007 (n = 113), and 2008 (n = 129) included the largest numbers of abstracts, while lower values occurred in 2009 (n = 13) and 2014 (n = 17). Concerning to the subjects, health promotion prevailed in 24.3%, followed by oral health care (18.5%), and health surveillance (11.7%). In the studies including humans (66.3%), the greater involvement was with children (27.0%). The Southeast region prevailed in the presentation of abstracts, with a rate of 66.9%, while smaller representation occurred in the Midwest region (1.6%). Conclusion: The DRCA category was present in the meetings of DRCA, especially by research involving health promotion approach with meaningful participation of the Southeast region, reflecting the potential scientific development of the region. <![CDATA[<b>Oral health self-perception among adults at a primary healthcare unit</b>]]> Introduction: Oral health self-perception is the individual assessment of the oral conditions. Objective: To evaluate the oral health selfperception of adults and the factors that influence this perception. Material and methods: A cross-sectional study was conducted at a primary healthcare unit in São Luís, Maranhão. Data were collected through the administration of a not validated questionnaire and a clinical examination at the dental office. The outcome was oral health self-perception and the independent variables were age, gender, ethnicity, marital status, schooling, monthly household income, dental treatment, the conclusion of treatment, last type of service used, toothache in the previous six months, untreated dental caries, missing teeth, the DMFT index, root caries and removable partial denture. Descriptive statistics and the chi-square tests were performed with a 5% level of significance. Results: The sample was composed by 129 adults aged 25 to 55 years. The female gender (80.6%), brown skin color (62.8%) and low income (55.8%) were the most prevalent independent variables. Ninety-three percent of the sample had undergone some type of dental treatment, but only 36.4% concluded treatment. Seventy-nine percent perceived their oral health as negative. No significant associations were found between a negative self-perception and the independent variables analyzed. Conclusion: Most of surveyed individuals had a negative self-perception of their oral health, however, the perception was not associated with any of the exploratory variables. <![CDATA[<b>How to avoid legal problems in cases of nerve injury due to dental implants</b>]]> Introduction: During the surgical and implant procedures, there is considerable risk of injury to oral nerves. The dental surgeon must recognize clinical signs of the main nerve lesions that might occur following surgical or dental implant procedures, and take the necessary precautions to prevent them. Objective: The aim of this manuscript was to describe a legal case of clinical paresthesia due to alveolar nerve compression following an implant placement, revising the types of nerve lesions of surgical-implant etiology, and advise the dental professional against clinical and legal flaws.Case report: In this case, a female patient underwent oral rehabilitation, including the placement of an osseointegrated implant in the lower left first molar region. After the setting of the device, the patient presented paresthesia on the left mentonian region and buccal mucosa of elements 34, 33 and 32 and, dissatisfied with the situation, she appealed to justice and requested the responsibility of the professional. Conclusion: It is important to discuss that prevention continues to be the key issue when it comes to avoiding clinical, ethical or legal repercussions. Practicing adequate diagnosis and treatment planning and conducting the necessary complementary exams are essential, allied to previously patients' signed consent. <![CDATA[<b>Chronic maxillary osteomyelitis secondary to chronic maxillary sinusitis in nonimmunocompromised patient - a rare case report and its management</b>]]> Introduction: Osteomyelitis is an inflammation of medullary portion of bone along with cortex and periosteum. It is one of most difficult infectious diseases to treat. Facial bones are prone to osteomyelitis due to various predisposing condition. Osteomyelitis of maxilla is rare disease and less frequently encountered. Objective: The aim of the article is to present an unusual case of chronic maxillary osteomyelitis secondary to rhinogenic which are rarely clinically causes. Case report: We hereby report a case of chronic maxillary osteomyelitis in 70-year-old non-immunocompromised patient secondary to chronic maxillary sinusitis. Complete resolution of chronic maxillary osteomyelitis was achieved by combination of antimicrobial therapy and surgical treatment. Conclusion: Clinician should identify such risk and provide the aggressive treatment modalities to avoid subsequent dreaded consequences. <![CDATA[<b>Esthetic rehabilitation of anterior teeth through gingival recontouring and ceramic veneers: a case report</b>]]> Introduction: Esthetic rehabilitations require a broad and thorough evaluation of all the elements that make up the smile such as lips, dental, and periodontal structures to plan the treatment to provide harmony to the whole set. Objective: To demonstrate through a case the association of Periodontics and Restorative Dentistry in the esthetic rehabilitation of anterior teeth replacing resin restorations by modifying the gingival architecture conservatively and harmonically. Case report: It is essential for a multidisciplinary approach to succeed in treatment. The replacement of previous restorations is an increasing demand in currently clinical practice, for many reasons, mainly due to dissatisfaction with the esthetics. It is observed that many of these patients involve not only dissatisfaction with the dental structure but also with the periodontal health, for this reason, it is necessary a previous adaptation of the gingival tissues for proper restorative rehabilitation. Conclusion: Ceramic laminates have proved to be a great choice for anterior teeth restorations, but they must be indicated in specific situations, to obtain excellent results as most conservative as possible. <![CDATA[<b>AH Plus extrusion into periapical tissue: literature review of main related properties and report of clinical cases</b>]]> Introduction: The sealers were developed for filling of root canals. Due to their physicochemical and technical properties used for obturation, often, extrusion is observed through apical constriction and occasionally by lateral and secondary canals. Objective: To review the literature on important properties to be considered in AH Plus sealer extrusion and report a case series of this sealer extrusion. Literature review: Articles evaluating the cytotoxicity and biocompatibility properties, besides flow and solubility were selected. Case report: In the presented cases, endodontic treatment was performed with rotary instrumentation and irrigation with 2.5% NaOCl. Obturation employed visual, tactile, and radiographic proof of gutta-percha main cone, and different obturation techniques. There were no reports of pain during and after endodontic treatment. Conclusion: AH Plus has adequate properties for a filling material and causes no major damage to the periapical tissues due to its little cytotoxic.