RESUMO
Objetivo: Describir la frecuencia y localización de pato- logías y anomalías dentarias (anomalías de número, tumores, quistes y piezas retenidas) observadas en radiografías pa- norámicas de pacientes pediátricos de entre 6 y 15 años del Hospital Zonal Especializado en Odontología Infantil "Dr. A. Bollini" de la ciudad de La Plata. Materiales y métodos: Se realizó un estudio observa- cional descriptivo de 300 radiografías panorámicas, de niños (n=150) y niñas (n=150) de entre 6 y 15 años, seleccionadas aleatoriamente en el área de radiología del hospital, tomadas en el período comprendido entre marzo de 2018 y marzo de 2020. Los datos obtenidos se volcaron en planillas de cálculo y con ellos se realizó un análisis estadístico descriptivo. Se utilizaron las siguientes variables: edad, sexo, tipo de ano- malía o patología (anomalías de número, tumores, quistes y piezas retenidas), pieza dentaria y ubicación (maxilar o man- díbula). Resultados: Dentro de las anomalías registradas (n=147), se encontraron en mayor medida piezas dentarias retenidas, en un 44,22% de los casos (n=65), agenesias en un 42,18% de los casos (n=62) y supernumerarios en un 13,61% de los casos (n=20). No se hallaron quistes ni tumores. Conclusión: En un 24% de las radiografías panorámicas de niños entre 6 y 15 años se halló alguna anomalía dentaria. Las anomalías más frecuentes fueron piezas dentarias reteni- das y agenesias (AU)
Aim: To describe the frequency and location of dental pathologies and anomalies (number anomalies, tumors, cysts and retained dental pieces) observed in panoramic radio- graphs of pediatric patients between 6 and 15 years of age from the Hospital Especializado en Odontología Infantil "Dr. A. Bollini" from the city of La Plata. Materials and methods: A descriptive observational study was performed based on 300 panoramic radiographs of children (150 girls and 150 boys) between 6 and 15 years old, randomly selected in the Radiology area of the hospital, taken in the period between March 2018 and March 2020. The data obtained were entered into spreadsheets and a descriptive sta- tistical analysis was carried out. The following variables were evaluated: age, sex, type of anomaly or pathology (anomalies of number, tumor, cysts and retained dental pieces), dental piece and location (maxilla or mandible). Results: Among the registered anomalies (n=147), re- tained dental pieces were found to a greater extent, in 44.22% of the cases (n=65), agenesis in 42.18% of the cases (n=62) and supernumeraries in 13.61% of the cases (n=20). No cysts or tumors were found. Conclusion: In 24% of panoramic radiographs of chil- dren between 6 and 15 years old, some dental anomaly was found. The most frequent anomalies were retained dental pieces and agenesis (AU)
Assuntos
Humanos , Masculino , Feminino , Criança , Adolescente , Anormalidades Dentárias/classificação , Anormalidades Dentárias/epidemiologia , Radiografia Panorâmica/métodos , Dente Impactado/epidemiologia , Epidemiologia Descritiva , Estudos Transversais , Unidade Hospitalar de Odontologia/estatística & dados numéricos , Estudo Observacional , Anodontia/epidemiologiaRESUMO
BACKGROUND/OBJECTIVES: This retrospective study evaluated the prevalence of dental anomalies of number in different subphenotypes of isolated cleft palate. MATERIALS/METHODS: The sample comprised 26 individuals with submucous cleft palate (group S) and 68 individuals with complete cleft palate (group C) aged between 9 and 12 years from a single centre. Panoramic radiographs were evaluated regarding the presence of dental anomalies of number in permanent teeth. Intergroup comparison was performed using chi-square tests (P < 0.05). RESULTS: Tooth agenesis was found in 34.61 and 36.76 per cent of group S and group C, respectively. The most commonly missing teeth were the maxillary second premolar, maxillary lateral incisor, and mandibular second premolar. Supernumerary teeth were found in none and 1.47 per cent of the individuals with submucous and complete cleft palate, respectively. No statistically significant difference was found between groups for the frequency of tooth agenesis and supernumerary teeth. LIMITATIONS: Only dental anomalies of number were evaluated. CONCLUSIONS/IMPLICATIONS: Individuals with submucous and complete cleft palate showed similar prevalence for tooth agenesis and supernumerary teeth. Dental anomalies frequency seems not to be a discriminator for subphenotypes of cleft palate.
Assuntos
Anodontia , Fenda Labial , Fissura Palatina , Anormalidades Dentárias , Anodontia/diagnóstico por imagem , Anodontia/epidemiologia , Dente Pré-Molar , Criança , Fissura Palatina/epidemiologia , Humanos , Estudos Retrospectivos , Anormalidades Dentárias/diagnóstico por imagem , Anormalidades Dentárias/epidemiologiaRESUMO
Objective: The purpose of the present study was to determine the association between agenesis of the third molar and other dental anomalies. Materials and Methods: This was an observational, retrospective, cross-sectional and analytical study. The sample included 367 patients, aged 14 to 20 years old with adequate digital panoramic radiography. Patients with syndromes, who had extractions of any third molar and with orthodontic treatment prior to panoramic radiographic examination, were excluded. For data collection, each radiograph was recorded with patient code, sex and age. Results: The prevalence of third molar agenesis was 20.71%. Subsequently, patients were divided into two groups, with agenesis of at least one third molar and a control group; the prevalence of other dental anomalies was 48.69% of third molar agenesis group and 21.31% in the control group. A highly significant association was found between the presence of third molar agenesis and the presence of other tooth abnomalities (p= 0.0000; contingency coefficient = 0.2425).The most frequent dental anomaly was dental inclusion with 20.44% of the population studied; followed by the agenesis of other teeth (7.90%) and finally the presence of supernumerary teeth (1.63%). Conclusions: This study demonstrates that there is an association between third molar agenesis and other dental abnormalities, with a higher prevalence of dental abnormalities in patients with third molar agenesis.
Objetivo: La presente investigación tuvo como finalidad determinar la asociación que existe entre la agenesia del tercer molar y otras anomalías dentarias. Material y Métodos: El estudio fue observacional, retrospectivo, transversal y analítico. La muestra que incluyó 367 pacientes de 14 a 20 años de edad con radiografía panorámica digital con parámetros adecuados. Se excluyeron pacientes con algún tipo de condición sindrómica, con exodoncias de algún tercer molar y con tratamiento ortodóntico previo al examen radiográfico panorámico. Para la recolección de datos, cada radiografía fue registrada con código de paciente, sexo, edad. Resultado: Se reportó una prevalencia de 20,71% de casos con agenesia de terceros molares. Los pacientes fueron divididos en 2 grupos, con agenesia de al menos un tercer molar y un grupo control, en ambos se calculó la prevalencia las otras anomalías dentarias, la cual fue de 48.69% de los pacientes que presentan agenesia de tercer molar tienen otra anomalía dentaria y 21.31% del grupo control tienen otra anomalía dentaria. Se encontró una asociación altamente significativa entre la presencia de agenesia de tercer molar y presencia de otras anomalías dentales (p=0.0000; coeficiente de contingencia=0.2425). La anomalía dental encontrada con más frecuencia es la inclusión dentaria con 20,44% del total de la población estudiada; seguido de la agenesia de otros dientes con 7,90% y finalmente la presencia de dientes supernumerarios con 1,63%. Conclusion: Este estudio demuestra que existe asociación entre la agenesia de tercer molar y otras anomalías dentarias, existiendo una mayor prevalencia de anomalías dentales en pacientes con agenesia del tercer molar.
Assuntos
Humanos , Masculino , Feminino , Adolescente , Adulto , Adulto Jovem , Anormalidades Dentárias/diagnóstico por imagem , Anodontia/epidemiologia , Dente Serotino/anormalidades , Peru/epidemiologia , Radiografia Panorâmica , Estudos TransversaisRESUMO
Resumen La agenesia dentaria es una anomalía frecuente de detectar en un examen odontológico. Objetivo: Determinar la prevalencia de agenesias en la población chilena actual, comparar según sexo, diente afectado y clase esqueletal, y registrar microdoncia de incisivos laterales superiores permanentes. Materiales y métodos: En este estudio descriptivo transversal, se contabilizó el número de agenesias dentarias presentes en 278 radiografías panorámicas de un total de 9207 pacientes, que ingresaron a tratamiento de ortodoncia durante el año 2017 en un centro clínico privado de Santiago de Chile. Resultados: Se obtuvo una prevalencia de agenesia del 3,02%, encontrando una mayor frecuencia de agenesia de segundos premolares inferiores, seguido de incisivos laterales superiores. Hubo una mayor cantidad de agenesias en pacientes de sexo femenino. Conclusión: Los segundos premolares son los dientes con mayor prevalencia de agenesias, no se evidenció la asociación de agenesias en alguna clase esqueletal específica, y se sugieren más estudios para describir la prevalencia de los terceros molares, debido a que este diente está en vías de dejar desarrollarse, según la teoría evolutiva.
Abstract Dental agenesis is a frequent anomaly detected in a dental examination. Objective: To determine the prevalence of agenesis in the current Chilean population, compare according to sex, affected tooth, skeletal class, and record microdontia of permanent upper lateral incisors. Materials and methods: In this cross-sectional descriptive study, the number of dental agenesis present in 278 panoramic radiographs of a total of 9207 patients who entered orthodontic treatment during 2017 in a private clinical center in Santiago de Chile was recorded. Results: A prevalence of agenesis of 3.02% was obtained, finding a higher frequency in lower second premolars, followed by upper lateral incisors. Females presented a higher amount of cases in comparison to males. Conclusion: The second premolars are the teeth with the highest prevalence of agenesis. The association of this alteration with some specific skeletal class was not evidenced. More studies are suggested to describe it´s prevalence in the third molars, beacause according to the evolutionary theory this tooth might eventually disappear.
Assuntos
Radiografia Dentária , Anodontia/diagnóstico por imagem , Chile , Anodontia/epidemiologiaRESUMO
Agenesis of permanent teeth is the most frequent dental anomaly. The most affected tooth is the third molar (M3), and its congenital absence poses interesting questions from a clinical and evolutionary perspective. M3 agenesis can occur isolated or as part of syndromes. Researchers have reported prevalences that vary largely among populations, between 5 % and 56 %, with a mean prevalence of 22.6 %. Previous Chilean studies, mainly in Northern populations, have determined a prevalence between 19.8 % and 26.7 %. The aim of this work was to assess the prevalence of M3 agenesis and to characterize its presentation in a sample from Santiago, the largest to date in a M3 agenesis prevalence study in Chile. In this study, 535 panoramic radiographies and clinical histories of patients from the Dental Clinic of the Universidad de Chile were used to determine prevalence and distribution according to sex, affected tooth, and location (left or right; maxilla or mandible). The Chi-square test was used to assess statistical significance in distribution. The calculated M3 agenesis prevalence was of 12.89 %. No statistically significant differences were found between sexes, sides or location within the jaws. The agenesis of one third molar was more common, then two, three and finally of all the third molars. The prevalence of M3 agenesis in the sample is 12.89 %, with a random manner of presentation. We propose that as it currently stands, M3 agenesis should be considered an anatomical variation rather than a developmental anomaly.
La agenesia de dientes definitivos es la anomalía dental más común. El diente más afectado es el tercer molar (M3), y su ausencia congénita plantea preguntas interesantes desde una perspectiva clínica y evolutiva. La agenesia de M3 puede ocurrir de manera aislada o asociada a síndromes. Estudios a nivel mundial reportan una prevalencia variable entre poblaciones: 5 % a 56 %, con una prevalencia media del 22,6 %. Estudios chilenos anteriores, principalmente en poblaciones del norte, han determinado una prevalencia entre 19,8 % y 26,7 %. El objetivo de este trabajo fue determinar la prevalencia de agenesia de M3 y caracterizar su presentación en una muestra de Santiago, la más grande hasta la fecha en un estudio de prevalencia de agenesia de M3 en Chile. Se utilizaron 535 radiografías panorámicas y antecedentes de pacientes atendidos en la Clínica Odontológica de la Universidad de Chile para evaluar la prevalencia y modo de presentación de la agenesia de M3. Se analizó su distribución según ubicación, sexo y simetría, mediante test estadístico Chi-cuadrado. Se calculó una prevalencia de agenesia de M3 de 12,89 %, sin un patrón claro ni estadísticamente significativo en su distribución. Fue más común la agenesia de un tercer molar, luego de dos, tres y finalmente de todos los terceros molares. La prevalencia de agenesia en una muestra de la Región Metropolitana es de 12,89 % y su distribución es aleatoria según la ubicación, sexo y simetría. Se propone que esta condición actualmente debiera considerarse como una variación anatómica más que a una anomalía del desarrollo.
Assuntos
Humanos , Masculino , Feminino , Anodontia/epidemiologia , Dente Serotino/anormalidades , Radiografia Panorâmica , Distribuição de Qui-Quadrado , Chile/epidemiologia , Prevalência , Distribuição por Sexo , Variação Anatômica , Anodontia/diagnóstico por imagem , Dente Serotino/anatomia & histologia , Dente Serotino/diagnóstico por imagemRESUMO
A dentadura mista, caracterizada pela substituição de dentes decíduos por permanentes, pode apresentar algumas falhas, denominadas anomalias dentárias de desenvolvimento. Estas apresentam graus de severidade distintas que variam desde o atraso cronológico na odontogênese, até a ausência completa do germe dentário, também denominados como agenesia dentária. Objetivos: Este trabalho tem a finalidade de avaliar a prevalência de agenesia de segundos pré-molares do complexo odontológico do Centro Universitário da Serra Gaúcha, bem como comparar os resultados obtidos com o da literatura mundial e verificar a diferença entre os sexos. Métodos: Esta pesquisa teve como base um estudo transversal, que visou analisar radiografias panorâmicas dos pacientes atendidos na FO-FSG nos anos de 2015 a 2017 com faixa etária entre 10 e 30 anos, com a finalidade de verificar a prevalência de agenesias dos segundos prés-molares. Resultados: Foram avaliadas 559 radiografias panorâmicas, selecionadas de um total de 3.460 prontuários cadastrados. Em relação a prevalência total, observa-se para o sexo masculino, os seguintes índices: dente 15 (2,2%), dente 25 (1,7%), dente 35 (0,4%) e dente 45 (0,7%). Para o sexo feminino, os índices foram: dente 15 (1,9%), dente 25 (1,3%), dente 35 (1,3%) e dente 45 (0,7%). Conclusão: O índice de prevalência de agenesia de segundos pré-molares dos pacientes da faculdade de odontologia do Centro Universitário da Serra Gaúcha foi relativamente baixo, levando em consideração o número de pacientes envolvidos, e também não apresentou uma diferença estatisticamente relevante entre sexo e idade(AU)
The mixed dentition, characterized by the replacement of deciduous teeth by permanent, may present some flaws, called dental development anomalies. These anomalies have different degrees of severity that vary from the chronological delay in odontogenesis, to the complete absence of the dental germ, also denominated dental agenesis. This study has the purpose of evaluating the prevalence of second premolar agenesis of the dental complex of Centro Universitário da Serra Gaúcha, as well as compare the results obtained with the world literature and to verify the difference between the sexes. Methods: This research is based on a cross-sectional study which aims to analyze panoramic radiographs of patients attended at FO-FSG in the years from 2015 to 2017 with ages from 10 to 30 years, with the purpose of verifying the prevalence of agenesis of the second premolars. Results: A total of 559 panoramic radiographs were evaluated, from a total of 3,460 registered dental records. In relation to the total prevalence, the following indexes were observed for the male sex: tooth 15 (2,2%), tooth 25 (1,7%), tooth 35 (0,4%) and tooth 45 (0,7%). For females, the indexes were: tooth 15 (1,9%), tooth 25 (1,3%), tooth 35 (1,3%) and tooth 45 (0,7%). Conclusion: The prevalence rate of second premolar agenesis of patients at the dentistry faculty of Centro Universitário da Serra Gaúcha was relatively low, taking into account the number of patients involved, and also did not present a statistically relevant difference between sex and age(AU)
Assuntos
Humanos , Masculino , Feminino , Criança , Adolescente , Adulto , Dente Pré-Molar , Anodontia/epidemiologia , Anormalidades Congênitas , AnodontiaRESUMO
A agenesia dentária pode ser definida como a falta de desenvolvimento do dente, com a ausência de um até seis dentes, sendo bastante frequente nas dentições decídua e permanente. A etiologia está relacionada tanto à fatores genéticos quanto a ambientais. Quanto maior a contribuição genética na origem de uma alteração, menor a possibilidade de prevenir, assim, pior o prognóstico do tratamento. Com o diagnóstico precoce, consegue-se uma intervenção ortodôntica em uma época adequada. Objetivo: Avaliar a prevalência de agenesia de incisivos laterais superiores (ILS) em radiografias panorâmicas da Faculdade de Odontologia do Centro Universitário da Serra Gaúcha. Métodos: estudo transversal de prevalência realizado no laboratório de Interpretação Radiográfica da FO-FSG envolvendo radiografias panorâmicas realizadas nos anos de 2015 a 2017. Foram registrados dados relativos ao número do prontuário do paciente, idade, sexo do indivíduo, a presença ou não de agenesia, o dente ausente, a presença ou não de diminuição de tamanho e apresentação de anomalia conoíde. Resultados: Nas amostras aplicou-se o teste Qui-quadrado para a heterogeneidade. Verificouse que o gênero e a agenesia não estão significativamente associados (p<0,05). Conclusão: Os indivíduos com agenesia de ILS, não apresentam diferenças entre os lados e os gêneros. Constata-se que a agenesia bilateral do ILS, é mais frequente do que a agenesia unilateral(AU)
Dental agenesis can be defined as the lack of development of the tooth, with the absence of one to six teeth, being quite frequent in deciduous and permanent dentitions. The etiology is related to genetic as well as environmental factors. The greater the genetic contribution at the origin of an alteration, the less the possibility of preventing, thus, the prognosis of the treatment worse. With early diagnosis, orthodontic intervention can be achieved at an appropriate time. Aim: To evaluate the prevalence of upper lateral incisor agenesis (ILS) in panoramic radiographs of the Faculty of Dentistry of the University Center of Serra Gaúcha, and to compare the results with the world literature in the different sexes, defining the best treatment for occlusal sequelae. Methods: A cross-sectional prevalence study performed at the FO-FSG Radiographic Interpretation Laboratory involved panoramic radiographs performed from 2015 to 2017. Data were recorded on the patient's medical record number, age, gender, presence or not of agenesia, the absent tooth, the presence or not of diminution of size and presentation of conoid anomaly. Results: In the samples was applied the chi-square test for heterogeneity. It was verified that the genre and the agenesis do not significantly associated, in a statistic view. Conclusion: Individuals with ILS agenesis do not present differences between the sides and genders. It is found that bilateral agenesis of ILS is more frequent than unilateral agenesis(AU)
Assuntos
Incisivo , Anodontia , Anodontia/epidemiologia , Ortodontia , Anormalidades CongênitasRESUMO
OBJECTIVE: This study aimed to investigate the prevalence and the factors associated with non-syndromic tooth agenesis, besides identifying its pattern of occurrence. STUDY DESIGN: Pre-orthodontic exams of 3400 subjects, aged 8-30 years, were selected from a radiographic center in Brazil. Panoramic and periapical radiographs were analyzed to verify the presence of tooth agenesis and other six dental anomalies. Descriptive statistics were calculated using the Tooth Agenesis Code tool and, to evaluate significant associations, a negative binomial regression model was constructed. Besides, unadjusted and adjusted prevalence ratios (PR) were calculated for the bivariate and the multivariate analysis. RESULTS: Prevalence of tooth agenesis was 3.0% (n = 68) and 41 different phenotypic patterns were observed. Teeth most often symmetrically missing were maxillary lateral incisors (13.2%) and mandibular second premolars (8.8%). Females (PR = 3.49, CI 95% = 1.96-6.19) presented more tooth agenesis. Other dental anomalies, such as palatal displacement of maxillary canine and infraocclusion of primary molar were significantly more frequent (p < 0.001) in subjects with agenesis. CONCLUSION: There was a strong relationship between tooth agenesis and gender and the association with other dental anomalies was significant, with the exception of the supernumerary teeth, which seems to be independent.
Assuntos
Anodontia/epidemiologia , Adolescente , Adulto , Anodontia/diagnóstico por imagem , Brasil/epidemiologia , Criança , Feminino , Humanos , Masculino , Fenótipo , Prevalência , Estudos Retrospectivos , Fatores SexuaisRESUMO
The identification of clinical patterns of tooth agenesis in individuals born with craniofacial deformities may be a useful tool for risk determination of these defects. We hypothesize that specific craniofacial deformities are associated with third molar agenesis. OBJECTIVE: The aim of this study was to identify if third molar agenesis could have a relation with other craniofacial structure alterations, such as cleft lip and palate, skeletal malocclusion, or specific growth patterns in humans. DESIGN: Data were obtained from 550 individuals ascertained as part of studies aiming to identify genetic contributions to oral clefts. 831 dental records of patients aged over eight years seeking orthodontic treatment were also included. SN-GoGn angle were used to classify the growth pattern (hypo-divergent, normal and hyper-divergent), and the ANB angle was used to verify the skeletal malocclusion pattern (Class I, II and III). Panoramic radiographs were used to determine third molar agenesis. RESULTS: A high frequency of third molar agenesis among individuals born with cleft lip with or without cleft palate (55%), as well as among their relatives (93.5%) was found. Third molar agenesis was not associated to skeletal malocclusion or growth pattern. CONCLUSION: It appears that third molar agenesis is associated with the disturbances that lead to cleft lip and palate.
Assuntos
Anodontia/complicações , Anodontia/epidemiologia , Anormalidades Craniofaciais/complicações , Anormalidades Craniofaciais/etnologia , Dente Serotino/anormalidades , Anormalidades Múltiplas/epidemiologia , Adolescente , Adulto , Biomarcadores , Criança , Fenda Labial/epidemiologia , Fenda Labial/etnologia , Fenda Labial/genética , Fissura Palatina/epidemiologia , Feminino , Humanos , Masculino , Má Oclusão/classificação , Má Oclusão/etiologia , Mandíbula/anormalidades , Mandíbula/patologia , Maxila/anormalidades , Maxila/patologia , Ortodontia , Fenótipo , Estudos Prospectivos , Radiografia Panorâmica , Adulto JovemRESUMO
OBJECTIVE: To compare the prevalence of dental anomalies in patients with isolated cleft palate with or without hypodontia of the second premolar. SETTING AND SAMPLE POPULATION: A total of 653 patients with isolated cleft palate aged 8-12 years were divided into two groups: G1-subjects without hypodontia of second premolar (n = 546) and G2-subjects with hypodontia of at least one-second premolar (n = 107). The control group consisted of 107 non-cleft orthodontic patients. MATERIALS & METHODS: Panoramic and periapical radiographs and dental casts were used to analyze the presence of dental anomalies. Intergroup comparisons were performed using the chi-square test complemented by Proportion test and Bonferroni test. RESULTS: G2 presented higher prevalence of hypodontia of other permanent teeth compared to G1 and control. Ectopic eruption of the maxillary canine and tooth transposition were more frequent in patients with a cleft compared to patients without a cleft, without statistical differences. Deciduous molar infra-occlusion and second premolar disto-angulation were less prevalent in G1 and G2 compared to the control group. G2 showed a higher prevalence of complete cleft palate than G1. CONCLUSION: Patients with cleft palate and second premolar agenesis showed increased prevalence of tooth agenesis and palatally displaced canines.