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

Impacted tooth associated with dentigerous cyst and compound odontoma – case report

The dentigerous cyst is a benign cyst associated with the development of odontogenic epithelium that covers the crown of impacted teeth. These are prevalent in the first three decades of life, reaching more often Caucasian males. Odontomas are hamartomas affecting the dental tissues, which can be divided into compound and complex odontoma. Odontoma affects children and young adults of both sexes, with a predilection for jaw bone. Case report: A 12-year-old boy attended the Pediatric Dentistry Clinic of Positivo University, complaining of pain in right parasymphysis region. The panoramic radiograph showed an impacted tooth (#43) located in base of the jaw below the apex of the teeth #31 to #42, with increased follicle. A radiopaque mass with small fragments of approximately 1 cm, located at the apex of the teeth #83 and #84 was seen. The patient underwent surgery under general anesthesia to remove the impacted tooth and radiopaque injury. Histopathological analysis of the dental follicle was compatible with dentigerous cyst and dental fragments were diagnosed as compound odontoma. The postoperative was uneventful, four months after the surgery the patient began orthodontic treatment for traction of tooth #44. Conclusion: Both lesions, dentigerous cyst and compound odontoma have favorable prognosis and low recurrence rate, but must be removed to maintain the integrity of the stomatognathic system. In this case was important the inter-relationship between dental specialties for the treatment of the patient

Changes in roughness of denture base and reline materials by chemical disinfection or microwave irradiation: Surface roughness of denture base and reline materials

OBJECTIVE: The effect of disinfection by immersion in sodium perborate solution and microwave irradiation on surface roughness of one denture base resin (Lucitone 550 -L), 3 hard chairside reline resins (Tokuyama Rebase II-TR, New Truliner-NT, Ufi Gel hard-UH) and 3 resilient reline materials (Trusoft-T; Sofreliner-S, Dentusil-D) was evaluated. MATERIAL AND METHODS: Thirty specimens of each material were made and divided into 3 groups: Control - not disinfected; P - daily disinfection by immersing in sodium perborate solution (3.8%); MW - microwave disinfection (6 min/650 W). Roughness measurements were made after polymerization (baseline) and after 1, 3 and 28 days. Roughness differences relative to the baseline readings were analyzed by Student's t-test (P=0.05). RESULTS: At baseline, Trusoft showed the highest (

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

Daily Toothbrushing Frequency and the Association with Parental Report of Dental Pain and Discomfort in Preschool Children

Objective:&nbsp;To evaluate the impact of daily toothbrushing frequency on parental reports of dental pain and discomfort in preschoolers.&nbsp;Material and Methods:&nbsp;An observational cross-sectional study was conducted involving 376 children between four and five years of age at public preschools in the city of Campo Magro, Brazil. Parents/guardians answered a socioeconomic questionnaire that contained a single question on the child's daily toothbrushing frequency and the Brazilian version of the Dental Discomfort Questionnaire (DDQ-B). Statistical analysis involved bivariate and multivariate Poisson regression analyses (α=0.05).&nbsp;Results:&nbsp;After the adjustments in the multivariate analysis, the prevalence of dental pain and discomfort was lower among children whose last visit to the dentist was for prevention (PR = 4.42; 95% CI: 1.75–11.14; p=0.002) and those with a higher daily toothbrushing frequency (PR = 2.13; 95% CI: 1.12–4.05; p=0.021).&nbsp;Conclusion:&nbsp;A lower toothbrushing frequency is associated with parental reports of dental pain and discomfort in preschoolers. Educational and preventive measures that stimulate an increase in daily toothbrushing frequency can contribute to a better oral health status in preschoolers, consequently, less prevalence of dental pain and discomfort

A Survival Analysis of Different Pulp Therapies in Decayed Primary Teeth

Objective: To identify the clinical and radiographic conditions associated with failure of pulp therapy in primary teeth through a survival analysis. Material and Methods: A total of 1000 records of children assisted at the pediatric dentistry clinic of the Federal University of Parana, Brazil, from the years 2000 to 2010, were analyzed. The mean evaluation time was 10.61 months (minimum/maximum: 1/28) from the report of pulp therapy. The different types of treatments analyzed included indirect pulp treatment (IPT), direct pulp treatment (DPT), pulpotomy and pulpectomy. The Kaplan-Meyer method and log-rank test were used for the survival analysis. Exodontia was considered as the outcome variable and censors included: traumatic tooth loss, presence of the tooth in the oral cavity and physiologic tooth exfoliation. Results: A total of 122 records reporting pulp therapy in the primary teeth were selected. From this, 16 teeth (13.12%) were extracted. Survival analysis showed that pulpectomy presented lower survival rates when compared to conservative therapies (p=0.0297). Teeth with furcal lesions and pathological root resorption before pulp therapy had lower survival rates when compared to those that did not present these conditions (P=0.006). Presence of fistula and abscess after pulp therapy were also associated with lower survival rates (P=0.0062 and 0.0143, respectively). Conclusion: Signals of pulp necrosis were associated to lower survival rates in primary teeth submitted to pulp therapy

Can Hemophilia Impact on the Oral Health Conditions of Children and Adolescents? A Systematic Review and Metanalysis

Objective: To analyze if the oral health conditions in children and adolescents are associated with hemophilia (PROSPERO-42020168192). Material and Methods: The search strategy was performed in PubMed, Scopus, Lilacs/BBO, Web of Science, Cochrane, and Grey literature databases. Two independent researchers assessed the risk of bias in these studies by the Newcastle-Ottawa Scale. For the meta-analysis, the clinical conditions data were extracted as numerical variables according to their indexes, such as dental caries experience (dmft/DMFT), gingival condition (Modified Gingival Index - IGM), and oral hygiene (Plaque Index - PI). The quality of the evidence of the meta-analysis was evaluated by the GRADE tool (GRADEproGDT). Results: From a total of 431 studies, 27 were included, and 10 were included in the meta-analysis. The studies presented a moderate risk of bias, ranging from 2 to 7 points. The dental caries experience in primary (-0.62; CI95%: -1.68–0.43) and permanent dentitions (-0.05; CI95%: -0.69–0.59), gingival condition (-0.12; CI95%: -0.27–0.03), and oral hygiene (0.36; CI95%: -0.06–0.77) did not differ between the groups. Conclusion: Based on studies with very weak evidence, there were no differences in the oral health conditions of children and adolescents with and without hemophilia

Are Premature Birth and Low Birth Weight Associated with Delay on the Eruption of Deciduous Teeth? A Systematic Review and Meta-analysis

Objective:&nbsp;To investigate whether children with premature birth (PB) and/or with low birth weight (LBW) have different tooth eruption patterns than those born at term or with normal weight.&nbsp;Material and Methods:&nbsp;Searches were performed in the PubMed, Cochrane Library, Sc1opus, Web of Science, LILACS, and BBO databases as well as the grey literature. Three independent reviewers were involved in study selection, data extraction, and bias assessment. The risk of bias was assessed using the Modified Newcastle-Ottawa Scale. Meta-analysis was conducted to compute the mean difference (MD) in mean chronological or adjusted age at the eruption of the first deciduous tooth between preterm children and those born at full term. The GRADE approach was used.&nbsp;Results:&nbsp;Among a total of 316 articles identified, 21 were eligible for inclusion and three were included in the meta-analysis. PB was associated with the delay in the first tooth deciduous eruption when chronological age was considered (MD: 1.36; 95%CI: 1.02–1.69) but not when considering adjusted age (MD: -0.30; 95%CI: -0.67–0.07). The evidence was graded as having very low quality.&nbsp;Conclusion:&nbsp;Based on a low certainty of evidence the PB is associated with the delayed eruption of the first deciduous tooth when considering chronological age but not when adjusted age is considered

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.