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1.
Hua Xi Kou Qiang Yi Xue Za Zhi ; 41(2): 203-207, 2023 Apr 01.
Artigo em Inglês, Chinês | MEDLINE | ID: mdl-37056187

RESUMO

OBJECTIVES: This study aimed to investigate the clinical characteristics of congenital deciduous teeth absence and its permanent teeth performance type by using panoramic radiographs. METHODS: A total of 15 749 panora-mic radiographs of 3-6-year-old children with deciduous dentition were collected from January 2020 to December 2021. The incidence of congenital deciduous teeth absence was observed, and the abnormality of permanent teeth was recor-ded. SPSS 24.0 software was used for statistical analysis. RESULTS: The incidence of congenital deciduous teeth absence was 2.54% (400/15 749), which was found in 217 girls and 183 boys, and the difference between the genders was statistically significant (P=0.003). The absence of one and two deciduous teeth accounted for 99.75% (399/400) of the subjects. In addition, 92.63% (490/529) of mandibular deciduous lateral incisor was congenitally absent, 44.80% (237/529) of deciduous teeth was absent in the left jaw, and less than 55.20% (292/529) was absent in the right; the difference between them was statistically significant (P=0.017). The absence of 96.41% (510/529) deciduous teeth in the mandibular was significantly more than that of 3.59% (19/529) in the maxillary, and the difference between was statistically significant (P=0.000). Furthermore, 68.00% (272/400) and 32.00% (128/400) of deciduous teeth were absent in unilateral and bilateral, respectively, and the difference was statistically significant (P=0.000). Four types of congenital deciduous teeth absence with permanent teeth were observed as follows: 1) 73.91% (391/529) of permanent teeth was absent; 2) 20.60% (109/529) of permanent teeth was not absent; 3) the number of fused permanent teeth accounted for 4.91% (26/529); 4) the number of supernumerary teeth was 0.57% (3/529). CONCLUSIONS: Although the absence of congenital deciduous teeth is less common than that of permanent teeth, it affects deciduous and permanent teeth to some extent. Dentists should pay attention to trace and observe whether abnormalities are present in the permanent teeth and take timely measures to maintain children's oral health.


Assuntos
Anodontia , Dentes Fusionados , Anormalidades Dentárias , Dente Supranumerário , Masculino , Feminino , Humanos , Dente Decíduo , Dentição Permanente , Dente Supranumerário/complicações , Dente Supranumerário/epidemiologia , Anodontia/epidemiologia , Anodontia/etiologia , Anormalidades Dentárias/epidemiologia , Anormalidades Dentárias/complicações , Dentes Fusionados/complicações , Dentes Fusionados/epidemiologia
2.
Rev. ADM ; 78(2): 95-99, mar.-abr. 2021. ilus
Artigo em Espanhol | LILACS | ID: biblio-1247757

RESUMO

Los dientes supernumerarios y la fusión dental son anomalías del desarrollo dental cuyas causas aún no se han dilucidado con certeza. El cuarto molar inferior, también denominado distomolar, es uno de los dientes supernumerarios con menor frecuencia de aparición clínica y su fusión con el tercer molar es una condición todavía menos común. A continuación, se reportan los casos clínicos de tres pacientes masculinos que presentaron fusión del tercer molar inferior derecho con un distomolar tratados mediante odontectomía (AU)


Supernumerary teeth and dental fusion are abnormalities of dental development whose causes have not yet been elucidated with certainty. The lower fourth molar, also called distomolar, is one of the supernumerary teeth with the least frequency of clinical appearance and its fusion with the third molar is an even less common condition. Next, the clinical cases of three male patients who presented fusion of the right lower third molar with a distomolar treated by odontectomy are reported (AU)


Assuntos
Humanos , Masculino , Adolescente , Adulto , Dente Supranumerário/epidemiologia , Dentes Fusionados/epidemiologia , Dente Serotino , Osteotomia/métodos , Dens in Dente/epidemiologia , Dentes Fusionados/cirurgia , Dentes Fusionados/diagnóstico por imagem , México
3.
BMC Oral Health ; 20(1): 1, 2019 12 31.
Artigo em Inglês | MEDLINE | ID: mdl-31892323

RESUMO

BACKGROUND: To determine the association between developmental dental anomalies (DDA), early childhood caries (ECC) and oral hygiene status of 3-5-year-old children resident in Ile-Ife, Nigeria. METHODS: This was a cross-sectional study. We analyzed data for 3-5-year-olds extracted from the dataset of a household survey collected to determine the association between ECC and maternal psychosocial wellbeing in children 0-5-year-old. The outcome variables for the study were ECC and poor oral hygiene. The explanatory variable was the presence of developmental dental anomalies (supernumerary, supplemental, mesiodens, hypodontia, macrodontia, microdontia, peg-shaped lateral, dens evaginatus, dens invaginatus, talons cusp, fusion/germination, hypoplasia, hypomineralized second molar, fluorosis, amelogenesis imperfecta). The prevalence of each anomaly was determined. Poisson regression analysis was conducted to determine the association between presence of developmental dental anomalies, ECC and oral hygiene status. The model was adjusted for sex, age and socioeconomic status. RESULTS: Of the 918 children examined, 75 (8.2%) had developmental dental anomalies, 43 (4.7%) had ECC, and 38 (4.1%) had poor oral hygiene. The most prevalent developmental dental anomalies was enamel hypoplasia (3.9%). Of the 43 children with ECC, 6 (14.0%) had enamel hypoplasia and 3 (7.6%) had hypomineralized second primary molar. There was a significant association between ECC and enamel hypoplasia (p < 0.001) and a borderline association between ECC and hypomineralized second primary molars (p = 0.05). The proportion of children with poor oral hygiene (PR: 2.03; 95% CI: 0.91-4.56; p = 0.09) and ECC (PR: 2.02; 95% CI: 0.92-4.46; p = 0.08) who had developmental dental anomalies was twice that of children with good oral hygiene and without ECC respectively, although the differences did not reach statistical significance. CONCLUSIONS: Enamel hypoplasia and hypomineralized second primary molars are developmental dental anomalies associated with ECC. developmental dental anomalies also increases the probability of having poor oral hygiene in the population studied.


Assuntos
Cárie Dentária/epidemiologia , Hipoplasia do Esmalte Dentário/epidemiologia , Higiene Bucal , Anormalidades Dentárias/epidemiologia , Pré-Escolar , Estudos Transversais , Dens in Dente/epidemiologia , Cárie Dentária/etiologia , Feminino , Dentes Fusionados/epidemiologia , Humanos , Incisivo/anormalidades , Masculino , Nigéria/epidemiologia , Prevalência , Anormalidades Dentárias/classificação , Coroa do Dente/anormalidades
4.
Niger J Clin Pract ; 20(7): 847-851, 2017 07.
Artigo em Inglês | MEDLINE | ID: mdl-28791979

RESUMO

OBJECTIVE: Understanding potential problems associated with primary double teeth (PDT) are important to provide prophylactic measures, thereby preventing or minimizing possible complications. The purposes of this study were to investigate the prevalence of PDT in a group of Turkish children and to compare the distribution of the different types of double primary teeth and their relationship to permanent successors. MATERIALS AND METHODS: A total of 17,268 children underwent a clinical examination to determine the presence of PDT. One hundred fifty-two PDT of 128 children were included in this study. All the 128 children with PDT underwent a clinical examination and had photographs taken at the time of the examination. The children underwent a further periapical or panoramic radiographic examination to determine the status of the underlying permanent successors. The PDT was classified according to Aguilo's classification. RESULTS: The prevalence of PDT was 0.74%, with no significant statistical difference between the sexes. PDT was most frequently observed between the mandibular lateral incisors and canines. Of the 152 PDT, 10.7% were Type I, 15.3% were Type II, 26.1% were Type III, and 47.9% were Type IV. Dental anomalies on the succedaneous permanent teeth were diagnosed in 69.4% of the children with affected primary dentition. Aplasia of the permanent lateral incisor was observed most frequently in association with Type I (52.7%) PDT. Caries involvement was observed most frequently in Type III (56.2%) PDT. CONCLUSION: The findings of this study have clinical relevance for the diagnosis of children with PDT. Early clinical and radiographic identification of PDT can help the clinician to evaluate the number and condition of permanent successors and draw up a proper treatment plan.


Assuntos
Dentes Fusionados/epidemiologia , Radiografia Panorâmica , Anormalidades Dentárias/epidemiologia , Dente Decíduo/anormalidades , Dente Supranumerário/epidemiologia , Criança , Cárie Dentária/complicações , Cárie Dentária/epidemiologia , Dentição Permanente , Feminino , Dentes Fusionados/diagnóstico por imagem , Humanos , Incisivo/anormalidades , Masculino , Exame Físico , Prevalência , Comportamento Sexual , Anormalidades Dentárias/diagnóstico por imagem , Dente Decíduo/diagnóstico por imagem , Turquia/epidemiologia
5.
J Epidemiol Glob Health ; 5(2): 151-7, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25922324

RESUMO

INTRODUCTION: Morphological variations in primary dentition are of great concern to a pediatric dentist as it may pose clinical problems like dental caries, delayed exfoliation and also anomalies in the permanent dentition, such as impaction of successors, supernumerary teeth, permanent double teeth or aplasia of teeth. The present study was conducted to investigate the presence of dental anomalies in the primary dentition of 1000 schoolchildren in the 3-5 year-old age group in Faridabad. MATERIALS AND METHODS: One-thousand schoolchildren were examined using Type III examination (WHO, 1997) for primary molar relationship, occlusal characteristics, primate spaces, physiological spaces and other anomalies of teeth, including number and morphology. RESULTS AND CONCLUSIONS: The prevalence of physiological spaces in maxillary and mandibular arches was 50.9% and 46.7%, respectively, whereas primate spaces were found in 61.7% of the children in the maxillary arch and 27.9% in the mandibular arch. The prevalence of unilateral anterior and posterior cross-bite was 0.1% and 0.8%, respectively, in the present study. The prevalence of hypodontia in the primary dentition was found to be 0.4% and the prevalence of fusion and gemination in the present study was 0.5%. Double teeth (fusion and gemination) and hypodontia were the most common dental anomalies found in the primary dentition in the present study.


Assuntos
Má Oclusão/epidemiologia , Anormalidades Dentárias/epidemiologia , Dente Decíduo/anormalidades , Anodontia/epidemiologia , Pré-Escolar , Feminino , Dentes Fusionados/epidemiologia , Humanos , Masculino , Prevalência , Arábia Saudita/epidemiologia
6.
Hua Xi Kou Qiang Yi Xue Za Zhi ; 33(6): 597-601, 2015 Dec.
Artigo em Chinês | MEDLINE | ID: mdl-27051952

RESUMO

OBJECTIVE: This study aims to investigate the prevalence and distribution of teeth number and morphology abnormalities in Chinese pediatric patients' permanent teeth at the mixed dentition stage by performing panoramic radiographs analysis. METHODS: A total of 4 347 panoramic radiographs of pediatric patients aged 5 years to 15 years who were admitted to the hospitals from September 2011 to September 2013 were reviewed. The presence of teeth number and morphology abnormalities were recorded as follows: congenitally absent teeth, supernumerary teeth, odontoma, microdontia, fused teeth, dilaceations, and cusp deformity. SPSS 16.0 software was used for statistical analysis. RESULTS: The prevalence of teeth number and morphology abnormalities in pediatric patients' permanent teeth was 31.79% (1,382/4,347). The prevalence was higher in males. Significant difference between the genders was observed (P < 0.05). Tooth agenesis, the most frequent dental anomaly (15.00%, 652/4,347), was considerably common in females; supernumerary teeth (12.61%, 548/4,347) followed, which was significantly common in males. Both differences were statistically significant (P < 0.05). The levels of prevalence of both microdontia and dilacerations were 4.00% (174/4,347) and 2.16% (94/4,347). The prevalence of cusp deformity, odontoma, and fused teeth were relatively low at 0.74% (32/4,347), 0.51% (22/4,347), and 0.39% (17/4,347), respectively. CONCLUSION: The prevalence of teeth number and morphology abnormalities in children's permanent teeth at the mixed dentition stage is apparently high. Tooth agenesis and supernumerary teeth are the most frequent. Panoramic radiograph is an efficient method for the early diagnosis of teeth number and morphology abnormalities. This method can assist pediatric dentists to formulate treatment plans for children at the appropriate time.


Assuntos
Prevalência , Anormalidades Dentárias/epidemiologia , Dente Supranumerário/epidemiologia , Adolescente , Criança , Pré-Escolar , China/epidemiologia , Odontólogos , Dentição Mista , Dentição Permanente , Feminino , Dentes Fusionados/epidemiologia , Humanos , Masculino , Odontoma/epidemiologia , Planejamento de Assistência ao Paciente , Radiografia Panorâmica , Fatores Sexuais , Anormalidades Dentárias/diagnóstico por imagem , Dente Supranumerário/diagnóstico por imagem
7.
BMC Oral Health ; 14: 125, 2014 Oct 16.
Artigo em Inglês | MEDLINE | ID: mdl-25323952

RESUMO

BACKGROUND: The study of dental anomalies is important because it generates information that is important for both the anthropological and clinical management of patients. The objective of this study is to determine the prevalence and pattern of presentation of dental hard-tissue developmental anomalies in the mix dentition of children residing in Ile-Ife, a suburban region of Nigeria. METHODS: Information on age, sex and socioeconomic status was collected from 1,036 children aged four months to 12 years through a household survey. Clinical examination was conducted to assess the presence of dental anomalies. Associations between age, sex, socioeconomic status, prevalence, and pattern of presentation of the developmental hard-tissue dental anomalies were determined. RESULT: Two hundred and seventy six (26.6%) children had dental anomalies. Of these, 23.8% had one anomaly, 2.5% had two anomalies, and 0.3% had more than two anomalies. Of the children with anomalies, 49.3%were male, 50.7%were female, and 47.8%, 28.6% and 23.6% were children from low, middle and high socioeconomic classes, respectively. More anomalies were seen in permanent than primary dentition. Anomalies of tooth structure were most prevalent (16.1%); anomalies which affect tooth number were least prevalent (1.3%). Dens evaginatus, peg-shaped lateral, macrodontia, and talon cusp were more prevalent in the permanent dentition, and dens evaginatus peg-shaped lateral and macrodontia were more prevalent in the maxilla. There were significantly more macrodontia anomalies in males and in children of high socioeconomic status. CONCLUSION: This large survey of dental hard-tissue anomalies found in the primary dentition and mixed dentition of children in Nigeria provides anthropological and clinical data that may aid the detection and management of dental problems of children in Nigeria.


Assuntos
Dentição Mista , Anormalidades Dentárias/epidemiologia , Dente Decíduo/anormalidades , Fatores Etários , Anodontia/epidemiologia , Criança , Pré-Escolar , Estudos Transversais , Dens in Dente/epidemiologia , Hipoplasia do Esmalte Dentário/epidemiologia , Feminino , Dentes Fusionados/epidemiologia , Humanos , Incisivo/anormalidades , Lactente , Masculino , Nigéria/epidemiologia , Pobreza/estatística & dados numéricos , Prevalência , Fatores Sexuais , Classe Social , Saúde Suburbana/estatística & dados numéricos , Anormalidades Dentárias/classificação , Coroa do Dente/anormalidades , Erupção Ectópica de Dente/epidemiologia , Dente Supranumerário/epidemiologia
8.
Eur J Paediatr Dent ; 15(3): 309-12, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25306150

RESUMO

AIM: Understanding the effects of primary double tooth (PDT) on permanent successors is important to ensure healthy permanent occlusion and aesthetics. The aim of this study is to determine the prevalence and type of PDT, their effect on permanent successors, and the accompanying dental anomalies/pathologies in a Turkish population. MATERIALS AND METHODS: Study design: The records of 63 PDTs in 54 healthy Caucasian children among 10,000 patients were investigated. PDTs were classified according to Aguilo's classification. RESULTS: The prevalence of PDT was 0.6%. Of the 63 PDTs, 14.3% were type I, 11.1% were type II, 31.7% were type III, and 41.3% were type IV; one (1.6%) was a triple tooth. Aplasia of the permanent lateral incisor was observed most frequently in association with type I (56%) PDT. All PDTs associated with a supernumerary permanent tooth were type IV. Dental anomalies/pathologies such as odontoma, talon cusp were observed. Caries involvement was observed most frequently in type IV (58.3%) PDT. STATISTICS: The chi-squared test was used to determine whether successor aplasia depended on PDT type, and contingency coefficients (%) were calculated to determine the degree of association between aplasia and PDT type. CONCLUSION: Clinicians should assess PDT clinically and radiographically to determine whether they are associated with aplasia of permanent lateral incisors (type I) or supernumerary permanent teeth (type IV). Type IV of PDT should be sealed with sealant or resin.


Assuntos
Dentes Fusionados/epidemiologia , Dente Decíduo/anormalidades , Anodontia/epidemiologia , Criança , Pré-Escolar , Cárie Dentária/epidemiologia , Dentição Permanente , Feminino , Humanos , Incisivo/anormalidades , Masculino , Odontoma/epidemiologia , Prevalência , Estudos Retrospectivos , Coroa do Dente/anormalidades , Raiz Dentária/anormalidades , Dente Supranumerário/epidemiologia , Turquia/epidemiologia
9.
J Contemp Dent Pract ; 14(4): 724-30, 2013 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-24309355

RESUMO

AIM: This study aimed to investigate the prevalence of dental anomalies and study the association of these anomalies with different types of malocclusion in a random sample of Saudi orthodontic patients. MATERIALS AND METHODS: Six hundred and two randomly selected pretreatment records including orthopantomographs (OPG), and study models were evaluated. The molar relationship was determined using pretreatment study models, and OPG were examined to investigate the prevalence of dental anomalies among the sample. RESULTS: The most common types of the investigated anomalies were: impaction followed by hypodontia, microdontia, macrodontia, ectopic eruption and supernumerary. No statistical significant correlations were observed between sex and dental anomalies. Dental anomalies were more commonly found in class I followed by asymmetric molar relation, then class II and finally class III molar relation. No malocclusion group had a statistically significant relation with any individual dental anomaly. CONCLUSION: The prevalence of dental anomalies among Saudi orthodontic patients was higher than the general population. CLINICAL SIGNIFICANCE: Although, orthodontic patients have been reported to have high rates of dental anomalies, orthodontists often fail to consider this. If not detected, dental anomalies can complicate dental and orthodontic treatment; therefore, their presence should be carefully investigated during orthodontic diagnosis and considered during treatment planning.


Assuntos
Má Oclusão/epidemiologia , Anormalidades Dentárias/epidemiologia , Anodontia/epidemiologia , Feminino , Dentes Fusionados/epidemiologia , Humanos , Masculino , Má Oclusão Classe I de Angle/epidemiologia , Má Oclusão Classe II de Angle/epidemiologia , Má Oclusão Classe III de Angle/epidemiologia , Modelos Dentários/estatística & dados numéricos , Prevalência , Radiografia Panorâmica/estatística & dados numéricos , Arábia Saudita/epidemiologia , Erupção Ectópica de Dente/epidemiologia , Dente Impactado/epidemiologia , Dente Supranumerário/epidemiologia
10.
Pediatr Dent ; 35(2): E64-7, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23635972

RESUMO

PURPOSE: The fusion of primary teeth may be associated with the absence of 1 of the 2 permanent successors. Moreover, even if both successors erupt, developmental disturbances such as microdontia or delayed tooth formation may occur. The purpose of this study was to elucidate the effects of different combinations of fused primary teeth on the eruption of permanent successors. METHODS: One hundred ninety-seven children with 247 fused primary teeth were examined. Combinations of primary teeth involved in the fusion were identified, and the effects of these different combinations on the presence, morphology, and eruption of the permanent successors were determined. RESULTS: Three types of fusion in the primary teeth were identified: (1) between the maxillary central and lateral incisors (UCI/LI); (2) between the mandibular central and lateral incisors (LCI/LI); and (3) between the mandibular lateral incisor and canine (LLI/C). The results revealed an absence of the successional lateral incisor in 65% of UCI/LI cases and 74% of LLI/C cases, whereas only 16% of LCI/LI cases resulted in a missing successor. CONCLUSIONS: Fused primary teeth are highly correlated with the absence of permanent teeth, and the prevalence depends on the combination of fused primary teeth.


Assuntos
Dentes Fusionados/epidemiologia , Anormalidades Dentárias/epidemiologia , Erupção Dentária/fisiologia , Dente Decíduo/anormalidades , Anodontia/epidemiologia , Criança , Dente Canino/anormalidades , Feminino , Humanos , Incisivo/anormalidades , Masculino , Mandíbula , Maxila , Raiz Dentária/anormalidades , Dente Impactado/epidemiologia
11.
J Oral Sci ; 53(2): 231-8, 2011 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-21712629

RESUMO

The purpose of this study was to determine the prevalence of developmental dental anomalies in an Indian population and to statistically analyze the distribution of these anomalies. The study was based on clinical examination, evaluation of dental casts, and panoramic radiographs of 1123 Indian subjects (572 males, 551 females), who visited the outpatient clinic at Government Dental College, Indore between November 2009 and September 2010, after obtaining their informed consent. These patients were examined for the following developmental dental anomalies: shape anomalies (microdontia, talon cusp, dens evaginatus, fusion, taurodontism), number anomalies (hypodontia, oligodontia, anodontia), structural anomalies (amelogenesis imperfecta, dentinogenesis imperfecta) and positional anomalies (ectopic eruption, rotation, impaction). The percentages of these anomalies were assessed for the whole group and compared using statistical analysis. Among the 1123 subjects, a total of 385 individuals (34.28%) presented with the selected developmental dental anomalies. The distribution by sex was 197 males (34.44%), and 188 females (34.06%). Out of the total 1123 individuals, 351 (31.26%) exhibited at least one anomaly, 28 (2.49 %) showed two anomalies and 6 (0.53%) displayed more than two anomalies. P values indicated that the dental anomalies were statistically independent of sex. On intergroup comparison, positional anomalies were significantly most prevalent (P < 0.05) in the Indian population. The most common developmental dental anomaly was rotation (10.24%), followed by ectopic eruption (7.93%). The next common group was number anomalies. The most common number anomaly was hypodontia (4.19%), which had a higher frequency than hyperdontia (2.40%). Analyzing the next prevalent group of shape anomalies, microdontia (2.58%) was found to be the most common, followed by taurodontism (2.49%), dens evaginatus (2.40%) and talon cusp (0.97%). Dentinogenesis imperfecta (0.09%) was the rarest, followed by amelogenesis imperfecta (0.27%) and fusion (0.27%).


Assuntos
Anormalidades Dentárias/epidemiologia , Amelogênese Imperfeita/epidemiologia , Anodontia/epidemiologia , Dens in Dente/epidemiologia , Esmalte Dentário/anormalidades , Hipoplasia do Esmalte Dentário/epidemiologia , Cavidade Pulpar/anormalidades , Dentinogênese Imperfeita/epidemiologia , Feminino , Dentes Fusionados/epidemiologia , Humanos , Índia/epidemiologia , Masculino , Má Oclusão/epidemiologia , Prevalência , Fatores Sexuais , Coroa do Dente/anormalidades , Erupção Ectópica de Dente/epidemiologia , Dente Impactado/epidemiologia
12.
Oral Dis ; 17(2): 221-31, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-20796225

RESUMO

OBJECTIVES: The aim of this investigation was to study the epidemiology of the isolated soft tissue cleft lip (ICL) population and to evaluate the dental anomalies associated with permanent dentition. METHODS: The study included 19 children aged 9-13 years presenting ICL selected from 657 cleft lip-affected patients treated during the last 10 years in two craniofacial centers. Only 17 patients could be included for dental anomaly evaluation: Hyperdontia, Hypodontia, Gemination, Talon tooth, Microdontia, and Macrodontia. These were compared with cleft lip and palate (CLP) and cleft lip and alveolus (CLA)-affected populations and with normal populations. RESULTS: The prevalence of ICL was 2.8%. All types of tooth abnormalities were found to be higher and mainly significant for the cleft side of ICL compared with the normal population. On the side opposite the cleft, the prevalence of dental anomalies reduced toward the normal individuals and was not significantly different. The significant differences found between CLP, CLA, and ICL-affected populations were mostly depicted by lateral incisors and second pre-molar hypodontia. CONCLUSIONS: Isolated cleft lip is a rare phenomenon among the spectrum of the cleft-affected population. The prevalence of the dental anomalies in ICL maintains the proportional trend according to clefting severity.


Assuntos
Fenda Labial/epidemiologia , Anormalidades Dentárias/epidemiologia , Adolescente , Processo Alveolar/anormalidades , Anodontia/epidemiologia , Dente Pré-Molar/anormalidades , Criança , Fissura Palatina/epidemiologia , Estudos Epidemiológicos , Feminino , Dentes Fusionados/epidemiologia , Humanos , Incisivo/anormalidades , Israel/epidemiologia , Masculino , Prevalência , Estudos Retrospectivos , Coroa do Dente/anormalidades , Dente Supranumerário/epidemiologia
13.
Pediatr Dent ; 32(7): 525-9, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-21462766

RESUMO

PURPOSE: The purpose of this study was to investigate the prevalence of congenital anomolies in the primary dentition in preschool Taiwanese children compared to Caucasion populations. METHODS: The study group comprised 2,611 children (1,442 boys ond 1,169 girls) between 2 and 6 years-old in the primary dentition phase using a random sampling technique. The presence of hypodontia, hyperdontia, and double teeth (fusion ond gemination) were recorded ond analyzed using Fisher's exact test. RESULTS: The prevalence of hypodontia was approximately 2%. Unilaterol missing teeth were more frequently observed than bilateral missing teeth. The primary mandibular right lateral incisor was the most frequently missing tooth. The prevalence af hyperdontia was less than 1%. All of the supernumerary teeth were located in the primary maxillary incisor area. The prevalence of double teeth was approximately 3%. All double teeth were located in the anterior region, and most of them were found in the mandibular lateral incisor and canine area. There were no differences in the prevalence of anomalies between the sexes. CONCLUSIONS: The prevalence of hypodontia and double teeth, but not hyperdontia, was significantly higher in Taiwanese children vs Caucasian children. Early detection of primary dental anomalies may help prevent oral disease in children.


Assuntos
Povo Asiático/estatística & dados numéricos , Anormalidades Dentárias/epidemiologia , Dente Decíduo/anormalidades , Anodontia/epidemiologia , Criança , Pré-Escolar , Feminino , Lateralidade Funcional , Dentes Fusionados/epidemiologia , Humanos , Masculino , Prevalência , Distribuição por Sexo , Taiwan/epidemiologia , Dente Supranumerário/epidemiologia , População Branca/estatística & dados numéricos
14.
J Clin Pediatr Dent ; 33(3): 211-5, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19476093

RESUMO

OBJECTIVE: To elucidate the prevalence of developmental anomalies of permanent lateral incisors among young patients in Japan. STUDY DEIGN: A total of 1375 patients were observed between 1990 and 2008 at the Department of Pediatric Dentistry in the Kyushu Dental College Hospital and four private pediatric dental clinics in Kitakyushu City. Panoramic and periapical radiographs were examined for all those patients aged 5 to 19 years. RESULTS: The prevalence of agenesis of the lateral incisors was 7.3% (100 patients), with more girls than boys being affected. The prevalence rates of absent upper and lower lateral incisors were 2.7 and 4.8% (34 and 63 patients), respectively. Nine (0.7%) of the total patients had microdontia. Eruption disturbance was present in five patients (0.4%). Two of five patients presented with a disturbed eruption owing to an odontoma or a supernumerary tooth. CONCLUSION: In our study, the prevalence of agenesis of the lateral incisors was higher in Japanese children than in other populations, and eruption disturbance occurred less frequently than agenesis and microdontia. Nevertheless, the early differential diagnosis of an eruption disturbance is important in order to begin appropriate treatment at the optimal time.


Assuntos
Incisivo/anormalidades , Anormalidades Dentárias/epidemiologia , Adolescente , Anodontia/epidemiologia , Criança , Pré-Escolar , Dentição Permanente , Feminino , Dentes Fusionados/epidemiologia , Humanos , Japão/epidemiologia , Masculino , Prevalência , Erupção Dentária , Dente Supranumerário/epidemiologia , Adulto Jovem
16.
Community Dent Health ; 24(3): 140-4, 2007 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-17958073

RESUMO

OBJECTIVES: To determine the prevalence of developmental dental anomalies in patients attending the Dental Faculty of Medical University of Yazd, Iran and the gender differences of these anomalies. DESIGN: A retrospective study based on the panoramic radiographs of 480 patients. Patients referred for panoramic radiographs were clinically examined, a detailed family history of any dental anomalies in their first and second degree relatives was obtained and finally their radiographs were studied in detail for the presence of dental anomalies. RESULTS: 40.8% of the patients had dental anomalies. The more common anomalies were dilaceration (15%), impacted teeth (8.3%) and taurodontism (7.5%) and supernumerary teeth (3.5%). Macrodontia and fusion were detected in a few radiographs (0.2%). 49.1% of male patients had dental anomalies compared to 33.8% of females. Dilaceration, taurodontism and supernumerary teeth were found to be more prevalent in men than women, whereas impacted teeth, microdontia and gemination were more frequent in women. Family history of dental anomalies was positive in 34% of the cases.. Taurodontism, gemination, dens in dente and talon cusp were specifically limited to the patients under 20 year's old, while the prevalence of other anomalies was almost the same in all groups. CONCLUSION: Dilaceration, impaction and taurodontism were relatively common in the studied populaton. A family history of dental anomalies was positive in a third of cases.


Assuntos
Radiografia Panorâmica/estatística & dados numéricos , Anormalidades Dentárias/epidemiologia , Adulto , Fatores Etários , Dens in Dente/epidemiologia , Esmalte Dentário/anormalidades , Cavidade Pulpar/anormalidades , Feminino , Dentes Fusionados/epidemiologia , Humanos , Irã (Geográfico)/epidemiologia , Masculino , Prevalência , Estudos Retrospectivos , Fatores Sexuais , Anormalidades Dentárias/diagnóstico por imagem , Anormalidades Dentárias/genética , Raiz Dentária/anormalidades , Dente Impactado/epidemiologia , Dente Supranumerário/epidemiologia
17.
Int J Paediatr Dent ; 11(1): 11-7, 2001 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-11309867

RESUMO

OBJECTIVES: To establish the prevalence of numerical and morphological variations of permanent teeth in Swedish 7-year-olds and to accept or reject the hypothesis of a higher prevalence for these conditions in northern Sweden compared to other areas. DESIGN: Cross-sectional. SETTING: Department of Odontology/Pedodontics, Umeå University, Sweden. SAMPLE AND METHODS: A total of 739 healthy Caucasian 7-year-olds residing in the city of Umeå, northern Sweden in 1976. The children were examined clinically and radiographically. RESULTS: The prevalence of hypodontia (excluding third molars) in girls was 8.4%, in boys 6.5%, and in both sexes combined 7.4%. Of the children with hypodontia, the majority (90.9%) lacked one or two teeth. Lower second premolars were the teeth most frequently missing. The prevalence of hyperdontia was 1.9%; 11 girls and three boys were affected; 78% of the supernumerary teeth were mesiodenses. Of the morphological variations, peg-shaped upper lateral incisors were found in 0.8% of the children, double-formation (gemination) in 0.3%, taurodontism in 0.3% and dens invaginatus in 6.8%. One diagnosis was found in 18% of the children, and in almost 8% of them more than one diagnosis was found. CONCLUSIONS: The results agree with those obtained in similar populations and are considered representative of this ethnic group. The hypothesis of a genetically determined higher prevalence of numerical and morphological variations in the study population was not verified.


Assuntos
Anormalidades Dentárias/epidemiologia , Anodontia/epidemiologia , Criança , Estudos Transversais , Dens in Dente/epidemiologia , Feminino , Dentes Fusionados/epidemiologia , Humanos , Masculino , Prevalência , Suécia/epidemiologia , Anormalidades Dentárias/patologia , Dente Supranumerário/epidemiologia
19.
Bull Tokyo Dent Coll ; 38(1): 27-32, 1997 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-9566151

RESUMO

We examined the prevalence of anomalies in deciduous dentition in 2,733 Japanese three-year-old children. The results showed that fused teeth occurs in 4.10%, congenital missing teeth in 2.38%, enamel hypoplasia in 1.50%, peg-shaped teeth in 0.55%, palatal cusps in upper deciduous incisors in 0.37%, supernumerary teeth in 0.07%, and color anomalies in 0.07%. Sixty-nine boys and 43 girls had fused teeth, percentages of 4.88 and 3.26, respectively. This difference was significant. All the fused teeth were located in the anterior region and were more frequent in the mandibular than in the maxillary arch. In the mandibular arch, 50 cases involved the lateral incisor and canine; the central incisor and lateral incisor were fused in 48 instances. There were 30 boys (2.12%) and 35 girls (2.65%) with congenitally missing deciduous teeth. This difference was not significant. Unilateral missing teeth were more frequently observed than bilateral missing ones. The lower lateral deciduous incisor was the most frequently missing tooth. The prevalences of fused teeth and congenital missing teeth were significantly higher in this study than in studies of American and Scandinavian children. These two anomalies are tending to increase in frequency in Japan.


Assuntos
Anormalidades Dentárias/epidemiologia , Dente Decíduo , Anodontia/epidemiologia , Pré-Escolar , Feminino , Dentes Fusionados/epidemiologia , Humanos , Lactente , Japão/epidemiologia , Masculino , Prevalência , Descoloração de Dente/epidemiologia , Dente Supranumerário/epidemiologia
20.
J Clin Pediatr Dent ; 21(1): 15-9, 1996.
Artigo em Inglês | MEDLINE | ID: mdl-9161200

RESUMO

The study consisted of analysis of all cases of anomalies in the primary dentition that were seen or treated by the authors in the Department of Children's Dentistry and Orthodontics. A total of 79 occurrences of anomalies was seen in 65 children. The anomalies detected were double teeth, hypodontia and supernumerary teeth. Radiographic examinations of the affected children showed that over 60% of the cases with anomalies in the primary dentition are associated with anomalies of the succadeneous permanent dentition. All subjects with hypodontia of the primary dentition presented with hypodontia of the permanent dentition. However, anomalies of the permanent dentition were seen in 59% of subjects with primary double tooth and 50% of subjects with primary supernumerary tooth.


Assuntos
Dentição Permanente , Anormalidades Dentárias , Dente Decíduo , Anodontia/epidemiologia , Criança , Dente Canino/anormalidades , Feminino , Dentes Fusionados/epidemiologia , Humanos , Incisivo/anormalidades , Malásia/epidemiologia , Masculino , Prevalência , Anormalidades Dentárias/epidemiologia , Dente Decíduo/anormalidades , Dente Supranumerário/epidemiologia
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