Mesiodens surgery at deciduous and permanent dentition

Introduction and Objective: To report a rare case of a patient who presented two mesiodens and the treatment performed at two moments. Case report: A 7 year-old male patient reported a supernumerary tooth extracted at age 4. The dental clinical exam revealed giroversion of permanent maxillary right central incisor. Cone-beam computed tomography (CBTC) revealed a presence of a mesiodens located at the buccal surface mesially to the permanent maxillary left central incisor and also indicated that the mesiodens was located close tothe f loor of the nasal cavity. The surgery was performed with a conservative intervention and osteotomy by preserving the adjacent structure. The one-year following-up post-operative x-ray indicated new bone deposition and a more favorable eruption position of the right permanent maxillary lateral incisor. Conclusion: It can be concluded that an early diagnosis by CBTC allowed an adequate treatment planning, which avoid the formation of cysts and a prolonged retention of permanent tooth

Evaluation of the erosive capacity of children?s beverages on primary teeth enamel : an in vitro study

The consumption of acidified beverages, associated with lower mineralization of primary enamel, is the ideal combination for the development and progression of dental erosion. The objective of this study is to analyze the erosive capacity and the surface roughness of primary teeth enamel after exposure to three different brands of grape juices. Forty enamel blocks of primary teeth were obtained, attened and polished. They were submitted to initial surface roughness analysis (baseline), and randomly assigned into four groups (n = 10): NAT: natural grape juice (Campo Largo); IND: industrialized grape juice (Dell Vale Kapo); SOY: soy-based grape juice (Ades); and CONT (control): artificial saliva. Blocks were immersed for 2 min, 3 times per day, for 9 days. During the whole time of the experiment, the enamel blocks were stored in artificial saliva. After the 9 days, the roughness parameters were determined again. The beverages were analyzed for pH and titratable acidity. Data were statistically analyzed (? = 0.05). The surface roughness did not differ significantly among groups (p > 0.05). However, after the immersion in the different grape juices, the surface roughness values increased significantly (p< 0.05). The pH values were weakly correlated to acidity values; NAT showed the highest titratable acidity values than the other juices (p<0.05). Although the surface roughness values of the experimental groups did not differ from the control group, there was a difference in initial and final roughness in all groups. Grape juices, especially natural, may have an erosive capacity, changing the surface roughness of primary dental enamel

Condições de saúde bucal e prevalência de hipomineralização molar-incisivo (HMI) em pacientes autistas: estudo piloto

Introdução: O transtorno do espectro autista (TEA) refere-se a uma série de condições caracterizadas pelo comprometimento do sistema nervoso. Algumas alterações dentárias podem ser observadas nesses pacientes. Uma delas é a hipomineralização molar-incisivo (HMI), considerada um defeito qualitativo que ocorre na fase tardia da mineralização ou maturação do esmalte. Objetivo: Observar a condição de saúde bucal e a prevalência de HMI em crianças autistas. Material e métodos: Foram realizados exame bucal em cinco crianças, anotação em formulário próprio seguindo os critérios da Associação Europeia de Odontopediatria para HMI e aplicação de questionário. Os dados foram tabulados, e fez-se a análise descritiva no programa Epinfo. Resultados: Das cinco crianças, quatro apresentaram pelo menos um elemento dentário com HMI. Conclusão: Pode existir uma relação entre TEA e HMI, já que a prevalência nesse estudo piloto foi de 80%. Além disso, apesar das características dos participantes, a condição de saúde bucal encontrada foi satisfatória. Sugere-se a necessidade de futuros estudos longitudinais com amostras maiores para confirmar ou não a relação entre transtorno do espectro autista e hipomineralização molar-incisivo

Oral rehabilitation with removable dental prosthesis in a six-year-old patient with hypohidrotic ectodermal dysplasia

Introduction: Ectodermal dysplasia is an abnormality of the ectoderm and its derivatives, phenotypically expressed in males and genetically inherited from mothers. Objective: To report the efficacy of the prosthetics treatment of severe ectodermal dysplasia in a 6-year-old boy with hypohidrotic ectodermal dysplasia (HED). Case report: The boy had difficulty in speaking and eating and the condition also affected his self-esteem. Prosthetic treatments included the construction of acrylic custom trays, determination of the vertical dimension of occlusion (VDO), construction of upper and lower dentures, and palatal expansion procedure. Conclusion: Significant improvements in the patient’s stomatognathic functionand self-esteem were evident.Introduction: Ectodermal dysplasia is an abnormality of the ectoderm and its derivatives, phenotypically expressed in males and genetically inherited from mothers. Objective: To report the efficacy of the prosthetics treatment of severe ectodermal dysplasia in a 6-year-old boy with hypohidrotic ectodermal dysplasia (HED). Case report: The boy had difficulty in speaking and eating and the condition also affected his self-esteem. Prosthetic treatments included the construction of acrylic custom trays, determination of the vertical dimension of occlusion (VDO), construction of upper and lower dentures, and palatal expansion procedure. Conclusion: Significant improvements in the patient’s stomatognathic functionand self-esteem were evident

Juvenile trabecular ossifying fibroma in association with multiple mandible deciduous teeth: an atypical case report

Introduction: Ossifying fibroma is a benign fibro-osseous lesion characterized by the formation of a cellular fibrous connective tissue stroma with cementum-like material and/or osseous components. The juvenile variant is reported to be an aggressive lesion in paediatric patients. Its poor symptomatology contrasts with its highly aggressive behaviour in maxillary or mandibular region. Objective: The aim of the present study is to report a case of an atypical ossifying fibroma in association of multiple deciduous teeth. Case report: A nine years-old girl was referenced to the Oral and Maxillofacial Surgery Service at Positivo University by the Paediatric Service after radiographic confirmation of a round lesion in lower left mandible region. Imaginological examination revealed a well-defined, round, with multiple radiopaque foci associated with the roots of deciduous molars and with root of first permanent mandibular molar of the left side. Lesion embedded the root and crown of the unerupted second left premolar, suggesting that the tumour arouse from it. After incisional biopsy, histopathological analysis suggested the trabecular pattern of juvenile ossifying fibroma. Surgery was conducted through an intra-oral approach. Incision was drawn in gingiva from the left lateral inferior incisor region until the unerupted second molar region, finished with a relaxing incision. A round tumour in association with the unerupted permanent premolars, which were also extracted, was removed in its entire extent by enucleation. Histopathological analysis confirmed the previous diagnosis of juvenile trabecular ossifying fibroma. Peripheral ostectomy was conducted to diminish chances of lesion relapse. Conclusion: 16 months follow-up showed no lesion recurrence

Prevalence of dental fluorosis in Curitiba, Brazil, in the years of 2006 and 2016 / Prevalência da fluorose dental em Curitiba, Brasil, nos anos de 2006 e 2016

Objective. The objective of this study was to describe the prevalence of dental fluorosis (DF) in 12-year-old schoolchildren from Curitiba, Brazil, in the years of 2006 and 2016.Methods. Participants were randomly selected from municipal, state and private schools. Schoolchildren were randomly chosen from within the Health Districts (HD), and thus a total of 679 and 934 participated in the years of 2006 and 2016 respectively. They were examined and their DF was classified according to the modified Dean index. The data were analyzed to determine distribution and the Chi-square test was used to search for associations between the outcome (DF) and the dependent variables (gender and HD), using SPSS, version 21.0.Results. There was an overall decrease in DF cases from 27.7% to 17.0 % (OR = 1.83; 95% CI: 1.44 - 2.33) in the period analyzed. There was an increase in cases of moderate DF from 16.5% in 2006 to 20.5% in 2016 however, without statistical significance (OR = 0.76; 95% CI: 0.44 - 1.31). When the variables gender and HD were included in the bivariate analysis, they presented no significant association with the outcome (p&gt; 0.05).Conclusions. The decrease in the prevalence of DF was significant in the period, although the values remained high, and that the dependent variables were not significantly associated with the outcome.

Child abuse: perception and knowledge by Public Health Dentistry teams in Brazil

Abstract Aim: To evaluate the experience, knowledge and attitudes of dentists and oral health technicians (OHTs) who work in Basic Health Units in the city of Curitiba, PR, Brazil, regarding cases of abuse against children and adolescents. Methods: In this observational study, three hundred eighty-three questionnaires (validated for Brazilian Portuguese) were sent to dentists and OHTs who work in public health units. The response rate was 38.12% (n = 146) for dentists and 40% (n = 77) for OHTs. Results: The mean age of the dentists was 40±8.29 years, and 53.43% treated more than 10 children per week. The OHTs' mean age was 45.39±9.71 years, and 62.35% attended to more than 10 children per week. Although the dentists perceived 185 suspected cases of maltreatment, only 35.67% were reported to authorities. In the OHT group, 22.08% were reported to authorities. Sixty-eight dentists (47%) and 11 OHTs (14.28%) reported having treated at least one case of orofacial trauma in the previous 6 months, totalizing 166 orofacial traumas. About the mechanism for reporting suspected cases, 83% of the respondents knew how to report. Over 50% of the responses concerning why the professionals did not report cases of physical violence against children included fear of retaliation and difficulties in diagnosis. Conclusions: Suspected cases of maltreatment against children and adolescents are underreported. More information is required to recognize suspected maltreatment cases and notify authorities