Ana de Lourdes Sá de Lira - Profile on Academia.edu (original) (raw)

Papers by Ana de Lourdes Sá de Lira

Research paper thumbnail of Long-term maxillary behavior in treated skeletal Class II malocclusion

Brazilian Journal of Oral Sciences, Aug 7, 2012

Aim: To evaluate the post-treatment and long-term anteroposterior and vertical maxillary changes ... more Aim: To evaluate the post-treatment and long-term anteroposterior and vertical maxillary changes from the use of Kloehn cervical headgear in treated skeletal Class II Division 1 malocclusion. Methods: Using a longitudinal prospective study design, 90 lateral radiographs of 30 treated patients (12 male gender and 18 female gender) were taken at the beginning of the treatment (mean age = 10 years and 9 month), at the end of the treatment (mean age = 14 years and 6 months), and in the post-retention phases (mean age = 26 years and 2 months). Lateral radiographs of 30 adults patients with Class II malocclusion, as control group (mean age = 24 years and 1 month) were compared with lateral radiographs of patients in the post-retention phase in order to quantify the cephalometric measurements (5 angular and 2 linear) representing the maxillary position in the anteroposterior and vertical direction. Results: Under the effect of treatment, forward displacement of the maxilla was redirected in a downwards and backwards direction. When the means of the female measurements were compared between the two groups, only ANB was greater in the control group. When the male measurements were compared, they presented a mean value of ANB greater in the control group, and the mean of SNPP greater in the treated group. Conclusions: In the post-retention phase, maxillary displacement reverted in a downward and forward direction, confirming the transitory effect of the extra-oral action on maxillary displacement.

Research paper thumbnail of Adenoid hypertrophy and open bite

Brazilian Journal of Oral Sciences, 2011

Aim: To evaluate if the constricted airway passage, measured by the nasopharyngeal (NP) and oroph... more Aim: To evaluate if the constricted airway passage, measured by the nasopharyngeal (NP) and oropharyngeal (OP) width, has a correlation to anterior open bite. Methods: Lateral cephalometric radiographs of 43 patients with anterior open bite (26 with mixed dentition and 17 with permanent dentition) and 30 patients with overbite (15 with mixed dentition and 15 with permanent dentition) were obtained from de Department of Pediatric Dentistry and Orthodontics of the Federal University of Rio de Janeiro for examination. Eight patients with syndromes were excluded from study. Cephalometric measurements were carried out using Dolphin Imaging &Management SolutionsTM software (Chatsworth, CA, USA). Measures of NP and OP were evaluated according to the McNamara’s soft tissue analysis and were correlated with the presence of open bite or overbite. Student’s t test and chi-square were used to assess statistical differences in continuous and dichotomic variables, respectively. Kruskal-Wallis tes...

Research paper thumbnail of Tratamento ortocirúrgico da classe III e mordida aberta severa

Tratamento ortocirúrgico da classe III e mordida aberta severa

Ortho Sci Orthod Sci Pract, 2010

Research paper thumbnail of Evaluation of the pandemic and vaccination against COVID-19 in the health of dental academics

Revista da ABENO

This study investigated the prevalence of the coronavirus disease (COVID-19) and vaccination amon... more This study investigated the prevalence of the coronavirus disease (COVID-19) and vaccination among dental students from public and private institutions, as well as verified the level of influence of the pandemic and vaccination on physical, mental health and academic performance. In this cross-sectional study an online questionnaire using Google Forms® was applied to dental students from a public and a private university on epidemiological data, COVID-19, vaccination and the impact of social distancing on health. The rate of COVID-19 infection in both groups was 36.8% (n=46), and when asked about the period of infection, 82.6% of these (n=38) contracted it before the first dose, but there were no statistically significant differences (χ2=2.667; p=0.102) between the groups. There was a difference between the groups tested, since 56.3% of the students from G1 were vaccinated with a second dose, compared to 29.6% from G2 (χ2= 16.554; p= 0.0009). Students were asked about the existence ...

Research paper thumbnail of Mandibular behavior in the treatment of skeletal Class II malocclusion: a 5-year post-retention analysis

Brazilian Journal of Oral Sciences, 2009

Aim: This study aimed to assess mandibular behavior in Class II subjects subjected to full orthod... more Aim: This study aimed to assess mandibular behavior in Class II subjects subjected to full orthodontic treatment with standard edgewise appliance and cervical headgear (Kloehn appliance) during the pubertal growth spurt period. Methods: Lateral cephalometric radiographs of 40 patients (21 females and 19 males) were performed at the beginning of the treatment (T0), at its end (T1) and at 5-year post-retention phase (T2) in order to quantify the cephalometric measurements (8 angular and 3 linear), representing the mandibular behavior in the anteroposterior and vertical senses. The mean age of female patients at T0, T1 and T2 was 11.4, 15 and 26 years, respectively, and for male patients it was 12.2, 16.7 and 28 years, respectively. All patients were treated in just one phase without extractions and not associating Class II intermaxillary elastics. Results: The effective treatment of skeletal Class II malocclusion with conventional Edgewise fixed appliance and Kloehn cervical headgear ...

Research paper thumbnail of Anteroposterior dentoalveolar effects with cervical headgear and pendulum appliance: a systematic review

Brazilian Journal of Oral Sciences, 2012

Aim: The aim of this systematic review was to compare the maxillary dental effects of cervical he... more Aim: The aim of this systematic review was to compare the maxillary dental effects of cervical headgear and pendulum appliance during distalization of permanent maxillary first molars. Methods: A literature survey from databases covering the period from 1956 to August 2008 was carried out. Randomized controlled trials (RCT) and controlled clinical trials (CCT) were included. Two reviewers selected and extracted the data independently, and also assessed the quality of the retrieved studies. Results: The search strategy resulted in 48 articles, of which 3 met the inclusion criteria. Distal molar movement with headgear versus pendulum appliance was identified. In all studies selected, the methods used to detect and analyze the distal molar movement were valid and generally well know. All articles included an error analysis method and considered the risk for confounding factors, but only one study used blinding in measurements. Conclusions: The studies showed that both cervical headgear with patient compliance and a non-compliance pendulum appliance are very effective in distalizing maxillary molars. However, additional RCTs with larger samples of both molar distalizing appliances are needed to confirm this result and provide further reliable scientific evidence.

Research paper thumbnail of Anterior crossbite malocclusion

Brazilian Journal of Oral Sciences, 2019

Aim: To evaluate the prevalence of anterior crossbite and to verify the effectiveness of the orth... more Aim: To evaluate the prevalence of anterior crossbite and to verify the effectiveness of the orthodontic appliance Inclined Plane in the correction of this malocclusion. Methods: The clinical examination was performed 702 children in the deciduous or mixed dentition of 7 schools and in those found the anterior crossbite was performed treatment with fixed Inclined Plane. Results: The prevalence of the anterior crossbite was 2.14%, characterizing 15 of the 702 children evaluated, of which 60% were female and 40% male, all of which were dental crossbites. Only 12 accepted the treatment with an average duration of 4.4 weeks. Conclusion: The prevalence of anterior crossbite was 2.14%. The inclined plane proved to be a viable and effective therapy in the correction of anterior crossbite. It is one of the options of the orthodontic treatment in patients in the deciduous or mixed dentition, propitiating greater possibility of dentoskeletal development, since the malocclusion is corrected. H...

Research paper thumbnail of Tratamento da maloclusão de Classe II com a extração de 4 premolares superiores: relato de caso

Tratamento da maloclusão de Classe II com a extração de 4 premolares superiores: relato de caso

Ortho Sci Orthod Sci Pract, 2011

Research paper thumbnail of Avaliação da prevalência da perda precoce de molares decíduos na dentição mista

Avaliação da prevalência da perda precoce de molares decíduos na dentição mista

Objective: To assess primary molars early loss in mixed dentition prevalence. Method: A study was... more Objective: To assess primary molars early loss in mixed dentition prevalence. Method: A study was carried out in children aged 6 to 12 years. Deciduous molar loss was considered early when it occurred before Nolla stage 6 (full formed crown) of the permanent successor or one year before its physiological exfoliation. Periapical radiographs were obtained to verify the presence of the permanent successor and the level of root formation, as well as the need for placement of fixed space maintainer lingual arch or Nance button. For the study of frequency distribution of early dental loss in relation to gender and dentition, we used the Chi-square test of 5% probability level and the non-parametric Mann-Whitney test for adequate statistical analysis. Results: Of the 315 children examined, 159 (50.47%) were male and 156 (49.52%) were female. Only 25 (7.9%) presented multiple dental losses in the posterior region, 19 in the lower arch and 6 in the upper arch. In the inferior one there was p...

Research paper thumbnail of Avaliação Da Estabilidade Da Cirurgia Ortognática No Tratamento Das Maloclusões De Classe II e Classe III

Avaliação Da Estabilidade Da Cirurgia Ortognática No Tratamento Das Maloclusões De Classe II e Classe III

Odontologia: Da ciência da saúde às ciências humana e social

Research paper thumbnail of Relationship between Pathological Occlusal Changes and the Signs and Symptoms of Temporomandibular Dysfunction

Relationship between Pathological Occlusal Changes and the Signs and Symptoms of Temporomandibular Dysfunction

Turkish Journal of Orthodontics

Research paper thumbnail of Prevalence and predisponent factors of molar-incisor hypomineralization in primary dentition

Brazilian Journal of Oral Sciences

Aim: To evaluate the prevalence and predisposing factors for hypomineralization of second molars ... more Aim: To evaluate the prevalence and predisposing factors for hypomineralization of second molars in children in primary dentition. Methods: A questionnaire was applied to parents to analyze predisposing factors and to assist in the diagnosis of hypomineralization in children between 2 and 6 years old, followed by an intraoral examination based on indices of non-fluorotic enamel defects in the primary dentition, according to the “Modified Index DDE” to determine demarcated opacity and HSPM presence / severity index to assess hypomineralization. Children from public and private schools were dived into two groups: if they presented HSPM-Group 1 (G1) and if they did not have HSPM-Control group (CG). Results: The most frequent predisposing factors associated with the child were Illness in the first year of life (X2= 6.49; p=0.01) and antibiotic use in the first year of life (X2= 41.82; p= 0.01). The factors associated with the mother were hypertension (X2= 9.36; p=0.01), infections durin...

Research paper thumbnail of O impacto da Covid-19 na Odontologia – revisão sistemática

O impacto da Covid-19 na Odontologia – revisão sistemática

Full Dentistry in Science

This study aimed to review, qualify and summarize the existing evidence on associations and risk ... more This study aimed to review, qualify and summarize the existing evidence on associations and risk factors for Covid-19 during dental treatment and dentists’ knowledge about these risks. After being registered with PROSPERO, the systematic review was carried out in accordance with the PRISMA guidelines, with searches in electronic databases, in specific journals, manual searches and Google Scholar, without language restrictions, from December 2019 to August 2020. Two questions were asked to be investigated: did patients seek dental care in the emergency room and do dentists know the symptoms and the mode of transmission of Covid-19, feeling qualified to attend them? Only 6 articles were included because they met all defined inclusion criteria. It was concluded that endodontic urgencies and emergencies with symptomatic irreversible pulpitis are the most common, consisting of a much higher proportion of dental emergencies during Covid-19 epidemic compared with dental trauma and no-urgen...

Research paper thumbnail of Prevalence of sleep bruxism in children in primary dentition

Brazilian Journal of Oral Sciences

Aim: To evaluate the prevalence of sleep bruxism in childrenbetween 2 to 6 years old in primary d... more Aim: To evaluate the prevalence of sleep bruxism in childrenbetween 2 to 6 years old in primary dentition in a public school(A1) and a private school (A2) in the state of Piauí. Method: Itwas cross-sectional and quantitative study in 370 participants,180 in A1 and 190 in A2. The questionnaire to help diagnosebruxism was applied to parents. In the clinical examination,dental wear was evaluated, checking for the presence ofshiny and polished facets on deciduous incisors and / ormolars (palatal surface, incisal edges and working cusps)and the results were noted in the odontogram. Students whohad bruxism participated in group 1 (G1) and those who didnot have it were in the control group (CG) in both A1 and A2.Results: One hundred and five children had sleep bruxism.Tooth wear was more prevalent in the male gender. Both in A1and in A2 and in both genders, wear on primary molars wasmore frequent than in canines. Conclusion: The prevalence ofbruxism in children between 2 and 6 years of age...

Research paper thumbnail of White spots on tooth enamel in mixed dentition

Brazilian Dental Science

Aim: To determine the prevalence, etiological factors of white spots on enamel and to evaluate th... more Aim: To determine the prevalence, etiological factors of white spots on enamel and to evaluate the treatment by microabrasion technique in schoolchildren. Method: A study was developed in children between the ages of 6 and 12 of both genders, enrolled in 3 municipal public schools. Oral examination of the children was carried out, and for those children in whom white spot lesions were found, dental treatment was provided by the microabrasion technique in the incisors and/ or first permanent molars to prevent the evolution to a caries lesion with cavitation, since the enamel structure was damaged. Results: The most affected age was 10 years with 27.8% (n = 5). In relation to the enamel surface area affected by white patches, the majority had 1% - 24% of the enamel reached. The possible etiological factors of white patches were systemic infections, trauma or caries with pulp involvement in a deciduous tooth. The treatment was effective in 16 children and for the remaining two the rest...

Research paper thumbnail of Influence of non-nutritive sucking habits on anterior open bite

Brazilian Journal of Oral Sciences

Aim: To evaluate the clinical behavior of sucking habits in children between 2 to 6 years old in ... more Aim: To evaluate the clinical behavior of sucking habits in children between 2 to 6 years old in a private (A1) and a public school (A2) in the state of Piauí. Methods: It was cross-sectional and quantitative study in 340 participants, 169 in A1 and 171 in A2. The researchers asked the children evaluated to keep their teeth occluded while analyzing whether there was no contact between the anterior teeth and no lip sealing, characterizing the anterior openbite for G1 or if there was contact between the incisors, with lip sealing, characterizing the control group (G2). Results: There was no statistically significant difference between groups regarding bottle feeding at main meals (χ2 = 3.03; p = 0.08). However, regarding the use of a pacifier, there was a statistically significant association (χ2 = 17.99; p <0.01) between pacifier use and the presence of anterior openbite. Such association was also observed between digital sucking habit and malocclusion (χ2 = 8.99; p = 0.01). Only ...

Research paper thumbnail of Relationship between oral candidiasis and users of dental prostheses

Brazilian Journal of Oral Sciences

Aim: To investigate the relationship between oral candidiasis and users of dental prostheses. Met... more Aim: To investigate the relationship between oral candidiasis and users of dental prostheses. Methods: A cross-sectional study was carried out which the inclusion of adults and elderly people of both genders using dental prostheses. Lectures were given with guidelines on oral hygiene techniques and dental prostheses, preventive measures of candidiasis, highlighting their influence on the oral and general health of the individual for the 240 users of dental prostheses. Of this number, 153 did not want to participate in the clinical examination. Signals and symptoms were analyzed in 87 patients, and lesions were present in only 21, and a cytological complement of the lesions was performed. Data were analyzed using SPSS version 15.0 with Chi-square (χ2 ) test at p…

Research paper thumbnail of Prevalence and etiology of dental trauma in schoolchildren aged 6 to 12 years

Brazilian Journal of Oral Sciences

Aim: To investigate the prevalence and etiological factors of dental trauma in school-age childre... more Aim: To investigate the prevalence and etiological factors of dental trauma in school-age children aged 6 to 12 years. Methods: A study was developed in children and adolescents between the ages of 6 and 12 of both genders enrolled in 3 municipal public schools. An oral examination of the permanent or deciduous incisors was performed, if they were still present in the oral cavity, to evaluate the presence of dental trauma, need for treatment and sequels, and the method of examination and classification of dental trauma of…

Research paper thumbnail of Association between maloclusion and self-perception of oral aesthetics in adolescents

Brazilian Journal of Oral Sciences

Aim: To evaluate the aesthetic self-perception capacity of adolescents from public schools regard... more Aim: To evaluate the aesthetic self-perception capacity of adolescents from public schools regarding the presence of oral alterations from malocclusions. Methods: Cross-sectional and quantitative study with 374 adolescents between 16 and 18 years old, belonging to public schools in the city of Parnaíba, Piauí. The adolescents were separated by gender (male and female) and examined for malocclusions. The problem identified for each participant was recorded for later comparison of the influence of its presence with aesthetic self-perception. Then, all adolescents, including those who demonstrated normal occlusion during the clinical evaluation, answered a questionnaire containing eight questions about their perception of their own smile and its impact on their interpersonal relationships. Self-perception was also analyzed by comparing the responses of those with normal occlusion with that of malocclusion individuals. Student's t-tests were used to verify if there was a difference ...

Research paper thumbnail of Evaluation of the influence of malocclusion in interpersonal relations among adolescents

Brazilian Dental Science

Aim: To evaluate the influence of malocclusion on interpersonal relationships among adolescents. ... more Aim: To evaluate the influence of malocclusion on interpersonal relationships among adolescents. Method: A cross-sectional, quantitative study was carried out with 360 students. Photographs of male and female mouth with malocclusions were manipulated and superimposed on the smile images of two individuals of both genders with normal occlusion (corresponding to the control group, GC) respectively, for assembly of 4 malocclusions: (1) anterior open bite, ( 2) anterior crossbite (3) dental crowding , and (4) Class II, in this order. These images were provided to the participants, who evaluated them through a questionnaire. Results: The less attractive malocclusion was dental crowding. For both flirting and maintaining a serious relationship the previous open bite was the most rejected, with Class II being the most acceptable. Conclusion: For adolescents, dental crowding is the most appropriate malocclusion to be corrected orthodontically. Malocclusions negatively influence the developm...

Research paper thumbnail of Long-term maxillary behavior in treated skeletal Class II malocclusion

Brazilian Journal of Oral Sciences, Aug 7, 2012

Aim: To evaluate the post-treatment and long-term anteroposterior and vertical maxillary changes ... more Aim: To evaluate the post-treatment and long-term anteroposterior and vertical maxillary changes from the use of Kloehn cervical headgear in treated skeletal Class II Division 1 malocclusion. Methods: Using a longitudinal prospective study design, 90 lateral radiographs of 30 treated patients (12 male gender and 18 female gender) were taken at the beginning of the treatment (mean age = 10 years and 9 month), at the end of the treatment (mean age = 14 years and 6 months), and in the post-retention phases (mean age = 26 years and 2 months). Lateral radiographs of 30 adults patients with Class II malocclusion, as control group (mean age = 24 years and 1 month) were compared with lateral radiographs of patients in the post-retention phase in order to quantify the cephalometric measurements (5 angular and 2 linear) representing the maxillary position in the anteroposterior and vertical direction. Results: Under the effect of treatment, forward displacement of the maxilla was redirected in a downwards and backwards direction. When the means of the female measurements were compared between the two groups, only ANB was greater in the control group. When the male measurements were compared, they presented a mean value of ANB greater in the control group, and the mean of SNPP greater in the treated group. Conclusions: In the post-retention phase, maxillary displacement reverted in a downward and forward direction, confirming the transitory effect of the extra-oral action on maxillary displacement.

Research paper thumbnail of Adenoid hypertrophy and open bite

Brazilian Journal of Oral Sciences, 2011

Aim: To evaluate if the constricted airway passage, measured by the nasopharyngeal (NP) and oroph... more Aim: To evaluate if the constricted airway passage, measured by the nasopharyngeal (NP) and oropharyngeal (OP) width, has a correlation to anterior open bite. Methods: Lateral cephalometric radiographs of 43 patients with anterior open bite (26 with mixed dentition and 17 with permanent dentition) and 30 patients with overbite (15 with mixed dentition and 15 with permanent dentition) were obtained from de Department of Pediatric Dentistry and Orthodontics of the Federal University of Rio de Janeiro for examination. Eight patients with syndromes were excluded from study. Cephalometric measurements were carried out using Dolphin Imaging &Management SolutionsTM software (Chatsworth, CA, USA). Measures of NP and OP were evaluated according to the McNamara’s soft tissue analysis and were correlated with the presence of open bite or overbite. Student’s t test and chi-square were used to assess statistical differences in continuous and dichotomic variables, respectively. Kruskal-Wallis tes...

Research paper thumbnail of Tratamento ortocirúrgico da classe III e mordida aberta severa

Tratamento ortocirúrgico da classe III e mordida aberta severa

Ortho Sci Orthod Sci Pract, 2010

Research paper thumbnail of Evaluation of the pandemic and vaccination against COVID-19 in the health of dental academics

Revista da ABENO

This study investigated the prevalence of the coronavirus disease (COVID-19) and vaccination amon... more This study investigated the prevalence of the coronavirus disease (COVID-19) and vaccination among dental students from public and private institutions, as well as verified the level of influence of the pandemic and vaccination on physical, mental health and academic performance. In this cross-sectional study an online questionnaire using Google Forms® was applied to dental students from a public and a private university on epidemiological data, COVID-19, vaccination and the impact of social distancing on health. The rate of COVID-19 infection in both groups was 36.8% (n=46), and when asked about the period of infection, 82.6% of these (n=38) contracted it before the first dose, but there were no statistically significant differences (χ2=2.667; p=0.102) between the groups. There was a difference between the groups tested, since 56.3% of the students from G1 were vaccinated with a second dose, compared to 29.6% from G2 (χ2= 16.554; p= 0.0009). Students were asked about the existence ...

Research paper thumbnail of Mandibular behavior in the treatment of skeletal Class II malocclusion: a 5-year post-retention analysis

Brazilian Journal of Oral Sciences, 2009

Aim: This study aimed to assess mandibular behavior in Class II subjects subjected to full orthod... more Aim: This study aimed to assess mandibular behavior in Class II subjects subjected to full orthodontic treatment with standard edgewise appliance and cervical headgear (Kloehn appliance) during the pubertal growth spurt period. Methods: Lateral cephalometric radiographs of 40 patients (21 females and 19 males) were performed at the beginning of the treatment (T0), at its end (T1) and at 5-year post-retention phase (T2) in order to quantify the cephalometric measurements (8 angular and 3 linear), representing the mandibular behavior in the anteroposterior and vertical senses. The mean age of female patients at T0, T1 and T2 was 11.4, 15 and 26 years, respectively, and for male patients it was 12.2, 16.7 and 28 years, respectively. All patients were treated in just one phase without extractions and not associating Class II intermaxillary elastics. Results: The effective treatment of skeletal Class II malocclusion with conventional Edgewise fixed appliance and Kloehn cervical headgear ...

Research paper thumbnail of Anteroposterior dentoalveolar effects with cervical headgear and pendulum appliance: a systematic review

Brazilian Journal of Oral Sciences, 2012

Aim: The aim of this systematic review was to compare the maxillary dental effects of cervical he... more Aim: The aim of this systematic review was to compare the maxillary dental effects of cervical headgear and pendulum appliance during distalization of permanent maxillary first molars. Methods: A literature survey from databases covering the period from 1956 to August 2008 was carried out. Randomized controlled trials (RCT) and controlled clinical trials (CCT) were included. Two reviewers selected and extracted the data independently, and also assessed the quality of the retrieved studies. Results: The search strategy resulted in 48 articles, of which 3 met the inclusion criteria. Distal molar movement with headgear versus pendulum appliance was identified. In all studies selected, the methods used to detect and analyze the distal molar movement were valid and generally well know. All articles included an error analysis method and considered the risk for confounding factors, but only one study used blinding in measurements. Conclusions: The studies showed that both cervical headgear with patient compliance and a non-compliance pendulum appliance are very effective in distalizing maxillary molars. However, additional RCTs with larger samples of both molar distalizing appliances are needed to confirm this result and provide further reliable scientific evidence.

Research paper thumbnail of Anterior crossbite malocclusion

Brazilian Journal of Oral Sciences, 2019

Aim: To evaluate the prevalence of anterior crossbite and to verify the effectiveness of the orth... more Aim: To evaluate the prevalence of anterior crossbite and to verify the effectiveness of the orthodontic appliance Inclined Plane in the correction of this malocclusion. Methods: The clinical examination was performed 702 children in the deciduous or mixed dentition of 7 schools and in those found the anterior crossbite was performed treatment with fixed Inclined Plane. Results: The prevalence of the anterior crossbite was 2.14%, characterizing 15 of the 702 children evaluated, of which 60% were female and 40% male, all of which were dental crossbites. Only 12 accepted the treatment with an average duration of 4.4 weeks. Conclusion: The prevalence of anterior crossbite was 2.14%. The inclined plane proved to be a viable and effective therapy in the correction of anterior crossbite. It is one of the options of the orthodontic treatment in patients in the deciduous or mixed dentition, propitiating greater possibility of dentoskeletal development, since the malocclusion is corrected. H...

Research paper thumbnail of Tratamento da maloclusão de Classe II com a extração de 4 premolares superiores: relato de caso

Tratamento da maloclusão de Classe II com a extração de 4 premolares superiores: relato de caso

Ortho Sci Orthod Sci Pract, 2011

Research paper thumbnail of Avaliação da prevalência da perda precoce de molares decíduos na dentição mista

Avaliação da prevalência da perda precoce de molares decíduos na dentição mista

Objective: To assess primary molars early loss in mixed dentition prevalence. Method: A study was... more Objective: To assess primary molars early loss in mixed dentition prevalence. Method: A study was carried out in children aged 6 to 12 years. Deciduous molar loss was considered early when it occurred before Nolla stage 6 (full formed crown) of the permanent successor or one year before its physiological exfoliation. Periapical radiographs were obtained to verify the presence of the permanent successor and the level of root formation, as well as the need for placement of fixed space maintainer lingual arch or Nance button. For the study of frequency distribution of early dental loss in relation to gender and dentition, we used the Chi-square test of 5% probability level and the non-parametric Mann-Whitney test for adequate statistical analysis. Results: Of the 315 children examined, 159 (50.47%) were male and 156 (49.52%) were female. Only 25 (7.9%) presented multiple dental losses in the posterior region, 19 in the lower arch and 6 in the upper arch. In the inferior one there was p...

Research paper thumbnail of Avaliação Da Estabilidade Da Cirurgia Ortognática No Tratamento Das Maloclusões De Classe II e Classe III

Avaliação Da Estabilidade Da Cirurgia Ortognática No Tratamento Das Maloclusões De Classe II e Classe III

Odontologia: Da ciência da saúde às ciências humana e social

Research paper thumbnail of Relationship between Pathological Occlusal Changes and the Signs and Symptoms of Temporomandibular Dysfunction

Relationship between Pathological Occlusal Changes and the Signs and Symptoms of Temporomandibular Dysfunction

Turkish Journal of Orthodontics

Research paper thumbnail of Prevalence and predisponent factors of molar-incisor hypomineralization in primary dentition

Brazilian Journal of Oral Sciences

Aim: To evaluate the prevalence and predisposing factors for hypomineralization of second molars ... more Aim: To evaluate the prevalence and predisposing factors for hypomineralization of second molars in children in primary dentition. Methods: A questionnaire was applied to parents to analyze predisposing factors and to assist in the diagnosis of hypomineralization in children between 2 and 6 years old, followed by an intraoral examination based on indices of non-fluorotic enamel defects in the primary dentition, according to the “Modified Index DDE” to determine demarcated opacity and HSPM presence / severity index to assess hypomineralization. Children from public and private schools were dived into two groups: if they presented HSPM-Group 1 (G1) and if they did not have HSPM-Control group (CG). Results: The most frequent predisposing factors associated with the child were Illness in the first year of life (X2= 6.49; p=0.01) and antibiotic use in the first year of life (X2= 41.82; p= 0.01). The factors associated with the mother were hypertension (X2= 9.36; p=0.01), infections durin...

Research paper thumbnail of O impacto da Covid-19 na Odontologia – revisão sistemática

O impacto da Covid-19 na Odontologia – revisão sistemática

Full Dentistry in Science

This study aimed to review, qualify and summarize the existing evidence on associations and risk ... more This study aimed to review, qualify and summarize the existing evidence on associations and risk factors for Covid-19 during dental treatment and dentists’ knowledge about these risks. After being registered with PROSPERO, the systematic review was carried out in accordance with the PRISMA guidelines, with searches in electronic databases, in specific journals, manual searches and Google Scholar, without language restrictions, from December 2019 to August 2020. Two questions were asked to be investigated: did patients seek dental care in the emergency room and do dentists know the symptoms and the mode of transmission of Covid-19, feeling qualified to attend them? Only 6 articles were included because they met all defined inclusion criteria. It was concluded that endodontic urgencies and emergencies with symptomatic irreversible pulpitis are the most common, consisting of a much higher proportion of dental emergencies during Covid-19 epidemic compared with dental trauma and no-urgen...

Research paper thumbnail of Prevalence of sleep bruxism in children in primary dentition

Brazilian Journal of Oral Sciences

Aim: To evaluate the prevalence of sleep bruxism in childrenbetween 2 to 6 years old in primary d... more Aim: To evaluate the prevalence of sleep bruxism in childrenbetween 2 to 6 years old in primary dentition in a public school(A1) and a private school (A2) in the state of Piauí. Method: Itwas cross-sectional and quantitative study in 370 participants,180 in A1 and 190 in A2. The questionnaire to help diagnosebruxism was applied to parents. In the clinical examination,dental wear was evaluated, checking for the presence ofshiny and polished facets on deciduous incisors and / ormolars (palatal surface, incisal edges and working cusps)and the results were noted in the odontogram. Students whohad bruxism participated in group 1 (G1) and those who didnot have it were in the control group (CG) in both A1 and A2.Results: One hundred and five children had sleep bruxism.Tooth wear was more prevalent in the male gender. Both in A1and in A2 and in both genders, wear on primary molars wasmore frequent than in canines. Conclusion: The prevalence ofbruxism in children between 2 and 6 years of age...

Research paper thumbnail of White spots on tooth enamel in mixed dentition

Brazilian Dental Science

Aim: To determine the prevalence, etiological factors of white spots on enamel and to evaluate th... more Aim: To determine the prevalence, etiological factors of white spots on enamel and to evaluate the treatment by microabrasion technique in schoolchildren. Method: A study was developed in children between the ages of 6 and 12 of both genders, enrolled in 3 municipal public schools. Oral examination of the children was carried out, and for those children in whom white spot lesions were found, dental treatment was provided by the microabrasion technique in the incisors and/ or first permanent molars to prevent the evolution to a caries lesion with cavitation, since the enamel structure was damaged. Results: The most affected age was 10 years with 27.8% (n = 5). In relation to the enamel surface area affected by white patches, the majority had 1% - 24% of the enamel reached. The possible etiological factors of white patches were systemic infections, trauma or caries with pulp involvement in a deciduous tooth. The treatment was effective in 16 children and for the remaining two the rest...

Research paper thumbnail of Influence of non-nutritive sucking habits on anterior open bite

Brazilian Journal of Oral Sciences

Aim: To evaluate the clinical behavior of sucking habits in children between 2 to 6 years old in ... more Aim: To evaluate the clinical behavior of sucking habits in children between 2 to 6 years old in a private (A1) and a public school (A2) in the state of Piauí. Methods: It was cross-sectional and quantitative study in 340 participants, 169 in A1 and 171 in A2. The researchers asked the children evaluated to keep their teeth occluded while analyzing whether there was no contact between the anterior teeth and no lip sealing, characterizing the anterior openbite for G1 or if there was contact between the incisors, with lip sealing, characterizing the control group (G2). Results: There was no statistically significant difference between groups regarding bottle feeding at main meals (χ2 = 3.03; p = 0.08). However, regarding the use of a pacifier, there was a statistically significant association (χ2 = 17.99; p <0.01) between pacifier use and the presence of anterior openbite. Such association was also observed between digital sucking habit and malocclusion (χ2 = 8.99; p = 0.01). Only ...

Research paper thumbnail of Relationship between oral candidiasis and users of dental prostheses

Brazilian Journal of Oral Sciences

Aim: To investigate the relationship between oral candidiasis and users of dental prostheses. Met... more Aim: To investigate the relationship between oral candidiasis and users of dental prostheses. Methods: A cross-sectional study was carried out which the inclusion of adults and elderly people of both genders using dental prostheses. Lectures were given with guidelines on oral hygiene techniques and dental prostheses, preventive measures of candidiasis, highlighting their influence on the oral and general health of the individual for the 240 users of dental prostheses. Of this number, 153 did not want to participate in the clinical examination. Signals and symptoms were analyzed in 87 patients, and lesions were present in only 21, and a cytological complement of the lesions was performed. Data were analyzed using SPSS version 15.0 with Chi-square (χ2 ) test at p…

Research paper thumbnail of Prevalence and etiology of dental trauma in schoolchildren aged 6 to 12 years

Brazilian Journal of Oral Sciences

Aim: To investigate the prevalence and etiological factors of dental trauma in school-age childre... more Aim: To investigate the prevalence and etiological factors of dental trauma in school-age children aged 6 to 12 years. Methods: A study was developed in children and adolescents between the ages of 6 and 12 of both genders enrolled in 3 municipal public schools. An oral examination of the permanent or deciduous incisors was performed, if they were still present in the oral cavity, to evaluate the presence of dental trauma, need for treatment and sequels, and the method of examination and classification of dental trauma of…

Research paper thumbnail of Association between maloclusion and self-perception of oral aesthetics in adolescents

Brazilian Journal of Oral Sciences

Aim: To evaluate the aesthetic self-perception capacity of adolescents from public schools regard... more Aim: To evaluate the aesthetic self-perception capacity of adolescents from public schools regarding the presence of oral alterations from malocclusions. Methods: Cross-sectional and quantitative study with 374 adolescents between 16 and 18 years old, belonging to public schools in the city of Parnaíba, Piauí. The adolescents were separated by gender (male and female) and examined for malocclusions. The problem identified for each participant was recorded for later comparison of the influence of its presence with aesthetic self-perception. Then, all adolescents, including those who demonstrated normal occlusion during the clinical evaluation, answered a questionnaire containing eight questions about their perception of their own smile and its impact on their interpersonal relationships. Self-perception was also analyzed by comparing the responses of those with normal occlusion with that of malocclusion individuals. Student's t-tests were used to verify if there was a difference ...

Research paper thumbnail of Evaluation of the influence of malocclusion in interpersonal relations among adolescents

Brazilian Dental Science

Aim: To evaluate the influence of malocclusion on interpersonal relationships among adolescents. ... more Aim: To evaluate the influence of malocclusion on interpersonal relationships among adolescents. Method: A cross-sectional, quantitative study was carried out with 360 students. Photographs of male and female mouth with malocclusions were manipulated and superimposed on the smile images of two individuals of both genders with normal occlusion (corresponding to the control group, GC) respectively, for assembly of 4 malocclusions: (1) anterior open bite, ( 2) anterior crossbite (3) dental crowding , and (4) Class II, in this order. These images were provided to the participants, who evaluated them through a questionnaire. Results: The less attractive malocclusion was dental crowding. For both flirting and maintaining a serious relationship the previous open bite was the most rejected, with Class II being the most acceptable. Conclusion: For adolescents, dental crowding is the most appropriate malocclusion to be corrected orthodontically. Malocclusions negatively influence the developm...