Prevalence Of Malocclusion In Children Research Articles

Prevalence of malocclusion and orthodontic treatment needs in children with special needs in district Mandi, Himachal Pradesh, India

Malocclusion plays an important role in overall oral health of every individual because it is associated with periodontal disease, temporomandibular disorder and may be complicated by an individual disability and special need.To determine the prevalence of malocclusion in children with special needs in District, Mandi, Himachal, Pradesh, India, using DAI and IOTN, and to assess whether the observed malocclusion is affected by sex. The study was consists of 200 children with mental retardation, physical disability, sensory impairment between 10-18 years of age from various special schools for people with special needs. A pre-structured proforma was used to record the findings and socio-demographic information. The special need children were examined in respective schools under natural light, using Dental aesthetic Index (DAI) and Index of orthodontic treatment need (IOTN).The prevalence of the malocclusion was found to be more in the subjects with the mental retardation and physical disability followed by hearing and visual impairment. There were no statistically significant differences in DAI and IOTN scores between gender.: The need for orthodontic treatment was found to be more in mentally retarded group than the other groups of special need children as per the IOTN and DAI scores in District, Mandi, Himachal, Pradesh.

Comparison of the prevalence of malocclusion and oral habits between children with cerebral palsy and healthy children

BackgroundCerebral palsy (CP) represents for children an important problem of health and affects roughly 2 per 1000 live births and is the most common pediatric developmental motor disability. Therefore, the purpose of this study was to determine the prevalence, type and severity of malocclusion and oral habits in children with Cerebral Palsy (CP) and to compare them with a control group of healthy children in Sana’a city.Materials and methodsA prospective, case–control study was made of two groups, a cerebral palsy and a control group. The study population consisted of 60 children who had CP, and a control group of 60 matched children with no physical or mental disabilities. Data were collected using a questionnaire and assessment for malocclusion was done clinically. The patients were compared with equal number of age-matched controls. The inclusion criteria were individuals aged over 6 years; absence of previous orthodontic treatment; no missing permanent first molars.ResultsResults showed an increased prevalence of malocclusion in children with cerebral palsy. Molar class II relationship was statistically higher in cerebral palsy children than healthy control (P = 0.001). Cerebral palsied children are likely to have a significantly increased protrusion of the anterior teeth (P < 0.001) when compared with normal children. Mouth breathing and Tongue thrust. Habits were significantly higher in the CP group (p = 0.0001) when compared with normal children.ConclusionThe prevalence of malocclusion was higher in children with Cerebral palsy than in normal children, and the present study concludes that in children with Cerebral Palsy, more oral Habits problems due to oral motor dysfunctions are common and problems of mouth breathing and Tongue thrust produce different malocclusion and poor oral hygiene complications in these children.

One phase prosthetic and orthodontic treatment in children: Case study

Background: Dental trauma in children is reported about 25–33%. Besides dental trauma, children are also at high risk for malocclusion. The prevalence of malocclusion in children was reported as 39% in children and 93% in adolescents. If the patient has malocclusion and a history of tooth loss due to trauma at the same time, there is often a dilemma as to which treatment should be prioritized. This case report will combine the Prosthetic phase and the orthodontic phase at the same time. Case reports regarding denture-modified removable orthodontic appliances in children have so far not been found. Case Report: An 11-year-old boy came with his mother to pediatric dentistry department at Universitas Airlangga with the chief complaint of missing teeth due to extraction at the dentist two years ago due to trauma. On intraoral clinical examination, it was found missing 11, crossbite 21 with 31 and 32. Case Management: Patients were planned treatment of malocclusion with removable orthodontic appliances added with riding pontic 11. Discussion: Tooth loss in children will affect speech, eating, and self-confidence. Several authors have reported appliance modifications and reported satisfactory results. During malocclusion treatment, dentures may not provide optimal aesthetic results. However, the advantages provided by the presence of dentures during the treatment of malocclusion are considered to be greater. Conclusion: Modification of removable orthodontic appliances combined with dentures can be a solution to both prosthodontic treatment needs and malocclusion.

The Relationship Between Mother’s Education and The Level of Knowledge About Child Malocclusion

&#x0D; Introduction: Malocclusion is a dental and oral health problem that often occurs in children and adolescents. The prevalence of dental and mouth problems in East Kalimantan Province is still quite high with the largest age group being 5-9 years. Knowledge about dental and oral health, especially in the aspect of child malocclusion, is related to the level of education of parents. Objective: To determine the relationship between the education of the mother of a student at SDN 005 Penajam, East Kalimantan and the level of knowledge about child malocclusion. Methods: using an analytic observational method with a cross-sectional, the instrument used was a modified questionnaire from Pravara Institute of Medical Sciences &amp; Rural Dental College, Loni, India. The research population was female students at SDN 005 Penajam, East Kalimantan. Sampling using total sampling technique. Results: from 133 respondents, 60% (n=24) of mothers with tertiary education had good knowledge of malocclusion, 39.02% (n=16) of mothers with secondary education and 48.08% (n=25) of mothers with education have less knowledge about malocclusion. There is a relationship between the education of the mothers of SDN 005 Penajam, East Kalimantan and the level of knowledge about malocclusion in children (p=0.000) and r=0.371 (weak correlation strength). Conclusion: Based on the results of this study it can be concluded that there is a relationship between the education of the mothers of students at SDN 005 Penajam, East Kalimantan and the level of knowledge about child malocclusion (p=0.000). The higher the education the better the results of knowledge. By having good knowledge about malocclusion, mothers can take preventive, curative, and rehabilitative actions so as to reduce the prevalence of malocclusion in children.

Orthodontic status of children with cerebral palsy in Arkhangelsk

Relevance. Cerebral palsy (CP) is a common disease, which causes early disability in children and affects their dental status. The absence of malocclusion prevalence situational analysis precludes good planning of orthodontic care in the comprehensive rehabilitation of children and adolescents with CP. The study aimed to assess the orthodontic status in Arkhangelsk children and adolescents with primary, mixed and permanent dentition to ground the inclusion of an orthodontist in a multidisciplinary team. Materials and methods. In 2021, the study examined 110 children and adolescents aged 11 months to 17 years with confirmed CP undergoing treatment at the Arkhangelsk Multidisciplinary Rehabilitation Center. We performed an oral examination, interviewed parents (guardians) on bad habits in children and adolescents, objectively examined and assessed the orthodontic status and functional impairment (chewing, swallowing, breathing). Results. The prevalence of malocclusion in children and adolescents with CP is 100%. Malocclusion was detected in primary, mixed and permanent dentitions. We diagnosed distal occlusion (75.4%), open bite in primary teeth (66.6%), deep overbite in permanent dentition (60.1%), severe overjet (71.8%) and unilateral crossbite (3.6%). Conclusion. The results suggest reconsidering approaches to dental pathology prevention and treatment in spastic CP. Early diagnosis of initial malocclusion and customized preventive measures are essential in comprehensive treatment and prevention programs.

Prevalence of malocclusions in patients attended at the orthodontic service of the high specialty center

Introduction: The stomatognathic system is constituted by interconnected anatomical elements, its functions are chewing, swallowing, breathing and speaking. During these the mandibular closure occurs, contacting the arcades, (occlusal relationship). Occlusal abnormalities begin at an early age, causing dentofacial deformities that interfere with overall well-being, affect aesthetics, chewing, respiratory, speech or physical and psychological balance functions. Dental malocclusion is any deviation from the ideal occlusion, alters the intercuspidation of the teeth. In Mexico, 60% of the population presents some malocclusion, placing as a health problem, associated with oral habits. In Veracruz there is no documented evidence of this problem.Objective: To evaluate the prevalence of malocclusion in children in Veracruz.Material and Methods: Epidemiological, observational, cross-sectional, comparative and retrospective clinical study in 85 patients aged 6 to 11 years, served in CAE during 2011-2015.Results: Obtaining that 53.95% presented Class I, 37.8% Class II and 8.2% Class III, 38 of the cases (43.7%) presented oral habits with a higher prevalence in the male sex, being the lingual projection the most frequent, 21.1% in ages of 6 to 7 years.

Prevalence of malocclusion in early childhood and its associated factors in a primary care service in Brazil.

to evaluate the prevalence of malocclusion and its associated factors of children cared for by a PHC Service in Porto Alegre, Brazil. a cross-sectional study nested in a cohort, carried out in 12 Health Care Practices. Of the 414 children in the cohort examined, 268 were assessed for malocclusion. The presence of anterior open bite, posterior and anterior crossbite was evaluated by the criteria of Foster and Hamilton. Socioeconomic variables, breastfeeding habits and pacifier use information were collected through a standardized questionnaire. Data analysis was performed using a hierarchical approach by Poisson Regression with robust variance. out of the total 268 evaluated, 135 (50.4%) were boys, and the average age was 28.6 (± 11.9) months. Out of the 143 (53.4%) cases of malocclusion, 113 were anterior open bite, 16 were anterior crossbite, 27 were posterior crossbite, and 38 had increased overjet. In the final analysis, it was observed that there was a higher prevalence of malocclusion in children who never breastfed (PR = 1.44; 95%CI 1.00-2.08) and who always used a pacifier to sleep (PR = 1.81; 95%CI 1.14-2.86). the prevalence of malocclusion in this population was high and was associated with behavioral habits, such as the use of pacifier and not breastfeeding.

THE PREVALENCE OF MALOCCLUSIONS IN CHILDREN AGED 6-13 YEARS LIVING IN KYIV AND KYIV REGION

For many years, malocclusions have remained one of the most common dental pathologies in the world. Malocclusions are found in every second child and teenager in the world, and their prevalence does not change depending on the stage of the bite. Having polyetiological causes, malocclusions affect most body systems, which are closely related to the functions of respiration, chewing, swallowing, and speech.&#x0D; Our goal was to obtain up-to-date data on the prevalence of malocclusion in children during the period of mixed and early permanent occlusion. In this study, we examined 674 children aged from 6 to 13 years (with the mean age of 9.2).&#x0D; The examined patients' occlusion was assessed in three planes: sagittal, vertical, and transverse.&#x0D; In the sagittal plane, the occlusion was assessed according to Angle’s classification, children were divided into three groups according to this criterion: class I, class II, class III.&#x0D; The overbite was estimated in the vertical plane. Children were divided into three groups: normal group, overbite, open bite.&#x0D; The overlap in the lateral areas was estimated in the transverse plane. Children were divided into three groups according to this criterion: normal group, bilateral crossbite, unilateral crossbite.&#x0D; In 94.51% of all children aged from 6 to 13 years, living in the city of Kyiv and Kyiv region, there was a malocclusion in one of the three planes, regardless of the gender. Only 5.49% of children did not have a malocclusion.&#x0D; Among the total number of children examined, class I was observed in 324 children, class II in 296 children, class III in 54 children. Among all examined children aged from 6 to 13 years, overbite was diagnosed in 57.27% (386 children). The open bite was determined least often, with the incidence rate of 9.64% (65 children) among the examined 674 children. Unilateral crossbite was observed in 58 children (8.61%) among 674 subjects. In most cases, namely, in 43 children (74.14%) out of 58 children, unilateral crossbite was accompanied by the midline displacement. Bilateral crossbite was detected in 163 children (24.18%) among the total number of respondents.&#x0D; Bite anomalies in sagittal and vertical planes were observed in 444 children (65.88%), 91 children (13.5%) in the sagittal and transverse planes, 43 children (6.38%) in the vertical and transverse planes, and 59 children (8.75%) in all planes.&#x0D; Developing a strategy for early prevention and treatment of malocclusion in children, as well as eliminating bad habits are important factors in combating the growing number of patients with orthodontic pathologies.&#x0D; Our data indicate a high prevalence of malocclusion among children and teenagers and the need to review the prevention management and early treatment of children of this age group.

Prevalence of malocclusions in children with microcephaly associated with the Zika virus

The objectives of this study were to determine the prevalence of malocclusion among children with Zika virus-associated microcephaly (MZV) and to describe the most common malocclusion in this population. This was a cross-sectional study including patients aged between 30 and 36months diagnosed with MZV. Healthy children were randomly selected with the same sociodemographic characteristics as the control group. Information about arch-type, primate spaces, arch form, overbite, overjet, midline deviation, anterior crossbite, anterior open bite, and the posterior crossbite was recorded. The statistical analysis used descriptive analysis, Pearson chi-square test, and multivariate logistic regression. Forty children comprised the MZV group, and 40 comprised the control group. Our results demonstrated a significantly higher prevalence of malocclusions in children who had MZV than the control group (P<0.001). Patients with MZV were more likely to have late eruption (P<0.001), hypoplastic maxillary arch (P<0.001), hypoplastic mandibular arch (P<0.001), excessive overjet (P<0.001), and posterior crossbite (P=0.004). The prevalence of malocclusion was higher among children with MZV. Late eruption, hypoplastic maxillary arch, hypoplastic mandibular arch, excessive overjet, and posterior crossbite were the most common characteristics for this population.

Malocclusion and Associated Factors in Early Childhood and Knowledge Level of Mothers from Childcare Groups

Objective: To determine the prevalence of malocclusion and associated factors in children and the level of knowledge of mothers participating in the child care group of a basic health unit . Material and Methods: This is a cross-sectional study conducted in children between 18 and 72 months of a childcare group in Pelotas. Children whose parents or legal guardians signed the informed consent term participated in the study. Data were collected through a questionnaire previously tested and applied to the mothers, and a clinical examination of children's occlusion were performed by examiners after training and calibration. Statistical analysis was descriptive and analytic. In the bivariate analyses, it was used the Pearson, Fisher or Linear Trend Qui-Square tests and, in the multivariate analysis, the Poisson regression. Prevalence ratios and 95% confidence intervals were obtained, and a p-value <0.05 was used. Results: Forty-seven children were included and 41.3% presented malocclusion. The prevalence of malocclusion was associated with a higher number of children in the family (p<0.005) and breastfeeding for more than 12 months (p<0.05). The highest prevalence of open bite was associated with the use of a pacifier and working mothers (p<0.05) . Conclusion: Most mothers reported having knowledge about the time and use of pacifiers in childhood. In this group, the prevalence of malocclusion in children was high and associated with behavioral and social factors.

Malocclusion in Children with and without Cleft Palate - A case - Control Study

There is a principle agreement that malocclusion is a major health concern as it is the third most common oral disease, next only to dental caries and periodontal disease. As it is a major challenge for even normally abled children to handle these problems, questions arise as to the difference in the extent or severity of manifestation of malocclusion in the oral cavity of patients with cleft palate. The study aims to determine the prevalence of malocclusion in children with and without cleft palate. A sample size of 18 case sheets was reviewed for malocclusion in children with cleft only. The data was obtained from record management software of a private dental institute. Data was analysed using SPSS software, and Mann-Whitney was done. The results were recorded. Children with cleft palate showed higher incidence of malocclusion when compared to children without cleft palate. Within the limitations of the present study, children with cleft palate (case) showed a higher incidence of malocclusion than the control group.

Prevalence of Malocclusion and Occlusal Traits in Children with Autism Spectrum Disorders.

BackgroundThe purpose of this cross-sectional study was to evaluate the prevalence of malocclusion in children with autism spectrum disorders (ASDs) and to determine the most common occlusal traits.Materials and MethodsThe present cross-sectional study was conducted among 7–15 years old children with ASDs and randomly selected healthy children with the same demographic characteristics. Molar relationship, lip incompetence, overbite, overjet, midline deviation, crossbite, and crowding/spacing were recorded. A descriptive analysis was performed for all variables. A comparison of the presence or absence of malocclusion traits between children with and without ASDs was assessed using the chi-square test. Univariate and multivariate logistic regressions were used to calculate odds ratio (OR) and 95% confidence intervals (95% CI) to assay various parameters between autism and non-autism group.ResultsA total of 96 patients were assessed, 47 patients in the ASD group, and 49 in the control (non-ASD) group. The results showed no significant difference between the ASD and control groups in terms of the overall prevalence of malocclusion (P>0.05). However, the prevalence of increased overjet and Class II molar relationship was significantly higher in the ASD group compared to the control group (P=0.03). Patients in the control group showed a higher prevalence of midline deviation (P=0.001).ConclusionDespite a higher prevalence of overjet and Class II molar relationship in children with ASDs, the prevalence of malocclusion was not higher in this group of patients.

Prevalência de maloclusões em crianças escolares e sua associação com hábitos bucais deletérios

Às maloclusões ocupam a terceira posição em relação às prioridades na escala de problemas de saúde bucal do Brasil, estando bastante frequente em crianças com dentição decídua ou mista, e apesar de possuir etiologia multifatorial, há alta relação com hábitos bucais deletérios, gerando grande impacto na qualidade de vida dos indivíduos portadores. Foi analisado por exame clínico as principais maloclusões dentárias que acometem escolares de 8 a 13 anos, de uma escola pública de Maceió - Brasil, que possuíam hábitos bucais deletérios. Trata-se de um estudo quantitativo analítico transversal, onde avaliou à oclusão de 100 crianças (n=100) por exame clínico intra-oral. Utilizou-se um questionário semi-estruturado para conhecimento de hábitos bucais deletérios existentes, interferências nos movimentos mandibulares, tipo de mordida e relação intermaxilar (classificação de Angle). Este estudo foi aprovado pelo Comitê de Ética em Pesquisa - CEP-UNIT\AL, sob parecer n°: 08205718.0.0000.5641, em 2019. Os dados foram analisados pela frequência absoluta e relativa. Das 100 crianças analisadas, houve predominância do sexo masculino (53%) sob o sexo feminino (47%), a faixa etária que sobressaiu foi a de 08 anos (44%), e autodeclarados pardos (56%). A prevalência de maloclusões apresentou-se num total de 55% dos indivíduos, no qual foi encontrado maior frequência relativa de portadores de mordida aberta (24%), mordida profunda (20%) e mordida cruzada (11%), respectivamente. Os hábitos bucais deletérios estiveram presentes em 93% dos indivíduos, com destaque para o uso prolongado da chupeta (68%), seguidos de onicofagia (10%), sucção digital (9%), e uso prolongado da mamadeira (6%). A relação intermaxilar teve maior prevalência da classe I (45%), classe II (9%), classe III (5%), respectivamente. A prevalência de maloclusões em crianças que possuem hábitos bucais deletérios, principalmente o uso prolongado da chupeta foi alta para esta amostra. Esses hábitos causam interferências no desenvolvimento saudável da criança, desencadeando baixa qualidade de vida. Faz-se necessário a melhoria das políticas públicas vigente no Brasil, como o Programa Saúde na Escola, visando trabalhar temáticas voltadas à prevenção das maloclusões, assim como ampliar o acesso do núcleo familiar aos serviços de saúde bucal.

Environmental Factors Associated with Malocclusion in Children Population from Mining Areas, Western Romania

Our study is based on the hypothesis that the prevalence of malocclusions in children is higher in the mining areas from North-Western (NW) Romania than in other geographic areas. We also considered that the distribution of the different types of malocclusions can be correlated with environmental factors. Therefore, the main purpose of the current study was to assess the prevalence of malocclusions in children from the mining areas in NW Romania. Another purpose was to establish the influence of certain environmental factors such as gender, geographical area of origin, and ethnicity on the distribution of malocclusions in order to provide an epidemiological reference for the planning of preventive and treatment programs adapted to the particularity of the mining areas. This cross-sectional study was performed in 2015–2016. The study batch consisted of 960 children from the mining areas, aged 7–14 years, in the period of mixed dentition and early permanent dentition. The clinical examination was conducted by a single examiner, an orthodontic specialist (TBI), in order to avoid inter-operator bias. Occlusion was registered according to Bjoerk. Occlusal clinical signs were followed for the determination of malocclusions. Most children had malocclusions (93.5%). The percentage of anomalies was significantly higher in subjects from Rosia Montana, in girls, and in the Romanians. Data showed that Angle Class I was the most prevalent malocclusion (60.21%), followed by crowding (47.5%), midline shift (43.33%), and deep bite (28.65%). The independent association between ethnicity and total malocclusions shows that the Romanian subjects presented a 3.31 higher chance of developing malocclusions than the Romani ones. The presence of malocclusions was independently influenced by all the studied environmental factors, namely gender, geographical area, and ethnicity. Our results could be relevant for oral health policy-making, i.e., planning preventive and treatment measures of malocclusions, adapted to the peculiarity of the studied mining areas.

Prevalence Of Malocclusion in Children between 6 to 18 Years Visiting a University Hospital

Prevalence Of Malocclusion in Children between 6 to 18 Years Visiting a University Hospital

Epidemiological survey of malocclusion in 8-9 year-old children in Qingdao Laoshan district

To investigate the prevalence of malocclusion and the correlation between caries and malocclusion in mixed dentition of primary students in Laoshan district of Qingdao city, to provide a scientific basis for early orthodontic treatment. According to WHO's oral health survey (basic methods), a survey concerning oral health was performed in 1803 children aged 8-9 years old. SPSS 17.0 software package was used for statistical analysis . 1322 of 1803 pupils suffered from malocclusion, the prevalence of malocclusion in children surveyed was (73.32%). There were 519 cases(39.26%) of Class I malocclusion, 374 cases(28.29%) of Class II malocclusion, 357(27.00%) cases of Class III malocclusion, 72 cases (5.45%) with asymmetric malformation. As regard to clinical manifestations, deep overbite accounted for(37.67%) ,followed by deep overjet(29.19%), dental crowding (16.94%) and crossbite(16.03%). The prevalence of caries was 64.23%. Among them, there were 625 males (34.66%) and 532 females(29.51%). The prevalence rate of malocclusion in mixed dentition of primary students in Laoshan district of Qingdao district is not optimistic, the incidence of malocclusion is closely related to caries.

Prevalence of malocclusion in children with obstructive sleep apnoea.

To describe the prevalence of malocclusions in 2- to 10-year-old children suffering from obstructive sleep apnoea (OSA) and to evaluate the association between occlusal variables and OSA. A total of 2101 consecutive patients referred to an otorhinolaryngology unit were considered for the study. One hundred and fifty-six children (range 2-10years) with suspected OSA were selected for a sleep study. The final sample consisted of 139 children suffering from OSA and a control group of 137 children. All patients included in the study underwent a clinical orthodontic examination to record the following occlusal variables: primary canine relationship, presence of a posterior crossbite, overjet and overbite. Odds ratios and 95% confidence intervals, comparing the demographic characteristics and dental parameters in OSA vs non-OSA children, were computed. Multivariable logistic regression models were developed to compare independent variables associated with OSA to non-OSA children. The prevalence of malocclusions in children with OSA was 89.9% compared to 60.6% in the control group (P<0.001). Factors independently associated with OSA compared to the control group were posterior crossbite (OR=3.38; 95%CI:1.73-6.58), reduced overbite (OR=2.43; 95%CI:1.15-5.15.), increased overbite (OR=2.19; 95%CI:1.12-4.28) and increased overjet (OR=4.25; 95%CI:1.90-9.48). This study showed a high prevalence of malocclusion in children with OSA compared to the control group. The posterior crossbite and deviations in overjet and overbite were significantly associated with OSA. The presence of these occlusal features shows the importance of an orthodontic evaluation in screening for paediatric OSA.

Relationship between dental malocclusion with parent’s educational status

Objective: To determine the relationship between prevalence of malocclusion in children and parents educational status. Methods: A total of 2000 Saudi male and female subjects between the ages 12-16 years were selected randomly from secondary schools within Aseer region. Subjects presenting with identified systemic diseases were excluded from the study and were examined for malocclusion using a standard orthodontic assessment form. SPSS software, version 14.0, has been used to analyse the statistics of data thus collected. Results: The prevalence of malocclusion for children of parents with post-doctoral degrees was lowest at 76.6%. Parents with master’s degree show a slightly higher prevalence of malocclusion among their children at 4% and 8% in children of parents with only primary education. The highest prevalence of malocclusion was noted in subjects of the parents with Bachelor’s degrees (at 48%) and with secondary level education at 25%. Conclusion: The study shows that parents with higher levels of education have protective effect on their child’s occlusion probably due to better access to resources and higher level of motivation to interrupt habits which affected the child’s oral health. Further research involving larger sample size and distribution involving multiple co variables should be done to explore the potential role of various risk factors of malocclusion.

Prevalence of malocclusion in children with upper airway obstruction

Prevalence of malocclusion in children with upper airway obstruction

Prevalence of malocclusion in Canadian children with autism spectrum disorder.

The purposes of this study were to determine the prevalence of malocclusion among children with autism spectrum disorder (ASD) and to describe the most common malocclusion traits in this population. This cross-sectional study included patients diagnosed with ASD aged between 5 and 18years. Randomly selected healthy children with the same demographic characteristics comprised the control group. Dental charts were reviewed to obtain the children's sociodemographic characteristics and type of occlusion. Information on each child's molar occlusion classification (Angle classification), midline deviation, crossbite, open bite, overbite, overjet, and crowding were recorded. The statistical analysis used descriptive analysis, the Pearson chi-square test, and multivariate logistic regression. Ninety-nine children comprised the ASD group, and 101 children were in the control group. Our results demonstrated a significantly higher prevalence of malocclusion in children with ASD compared with the control group (P<0.001). Patients with ASD were significantly more likely to have posterior crossbite (P=0.03), increased overjet (P<0.0001), and severe maxillary crowding (P<0.01). Furthermore, children with ASD were more likely to have malocclusion than non-ASD children, independently of their demographic characteristics (odds ratio, 2.6; 95% confidence interval, 1.46, -4.65). The prevalence of malocclusion was higher among children with ASD. Posterior crossbite, increased overjet, and severe maxillary crowding were the most common malocclusion traits in these children.