Prevalence of malocclusion in 6-year-old Icelandic children: A study using plaster models and orthopantomograms

Johannsdottir, Berglind; Wisth, Per Johan; Magnusson, Thordur Eydal

doi:10.3109/00016359709059206

Cited by 58 publications

(20 citation statements)

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“…Studies on the prevalence of occlusal anomalies in the age group of 5–7-year-olds are rare and results vary greatly, from 36% to almost 80% [3,4,23]. We found that 71.4% of children had some kind of abnormal occlusal trait.…”

Section: Discussionmentioning

confidence: 65%

The Prevalence of Malocclusion and Oral Habits among 5–7-Year-Old Children

et al. 2014

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BackgroundDigit sucking, tongue thrust swallowing, and mouth breathing are potential risk factors for development of malocclusion. The purpose of this study was to verify the prevalence of different occlusal traits among 5–7-year-old children and assess their relationship with oral habits.Material/MethodsThe study included 503 pre-school children (260 boys and 243 girls) with a mean age of 5.95 years. Different occlusal traits were verified by intraoral examination. Oral habits were diagnosed using data gathered from clinical examination of occlusion and extra-oral assessment of the face, combined with a questionnaire for parents.ResultsThe study demonstrated that 71.4% of the children presented with 1 or more attributes of malocclusion and 16.9% had oral habits. The vertical and sagittal malrelation of incisors, as well as spacing, were the predominant features.This study showed that digit suckers have higher incidence of anterior open bite (P=0.013) and posterior crossbite (P=0.005). The infantile type of swallowing demonstrated strong association (P=0.001) with anterior open bite.ConclusionsNon-nutritive sucking habits and tongue thrust swallowing are significant risk factors for the development of anterior open bite and posterior crossbite in pre-school children.

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Section: Discussionmentioning

confidence: 65%

The Prevalence of Malocclusion and Oral Habits among 5–7-Year-Old Children

et al. 2014

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“…[12] However, the estimated rate falls short of the published data on samples of orthodontic patients. [2930] A possible explanation may be the higher dental awareness and esthetic anxiety of individuals seeking orthodontic treatment.…”

Section: Discussionmentioning

confidence: 99%

“…Epidemiological studies on the prevalence of lateral incisor agenesis and canine impaction in different populations, demonstrate rates of 0.8-2%[123] and 0.2-2.8%,[45] respectively. Generally, congenital absence of teeth results from disturbances during the initial stages of tooth development, while eruption failure is caused by displacement of a permanent tooth from its normal eruption path, occasionally due to interference by pathological entities such as odontomas.…”

Section: Introductionmentioning

confidence: 99%

Lateral incisor agenesis, canine impaction and characteristics of supernumerary teeth in a South European male population

2013

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Objective:To assess the prevalence of lateral incisor agenesis impacted canines and supernumerary teeth in a young adult male population.Materials and Methods:The panoramic radiographs of 1745 military students (mean age: 18.6 ± 0.52 years) who attended the Center of Aviation Medicine of the Armed Forces of Greece during the period 1997-2011 were initially analyzed for lateral incisor agenesis by two observers. After exclusion of the known orthodontic cases, a subgroup of 1636 examinees (mean age: 18.6 ± 0.44 years) was evaluated for canine impaction and supernumerary teeth.Results:Twenty-eight missing lateral incisors were observed in 22 military students, indicating an incidence of 1.3% in the investigated population. No lateral incisor agenesis was detected in the mandibular arch. A prevalence rate of 0.8% was determined for canine impaction in the sample of young adults. The majority of impacted teeth (86.7%) were diagnosed in the maxillary arch. Thirty-five supernumerary teeth were observed in 24 examinees (prevalence rate: 1.5%). The ratio of supernumerary teeth located in the maxilla versus the mandible was 2.2:1. The most common type of supernumerary tooth was the upper distomolar.Conclusion:The prevalence of lateral incisor agenesis, canine impaction, and supernumerary teeth ranged from 0.8 to 1.5% in the sample of male Greek military students.

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“…Congenital missing of teeth (CMT) or dental agenesis is a common dental abnormality, in which some dental buds fail to develop, leaving an empty space in the arch which causes numerous complications [ 1 – 19 ]. In most countries, out of every 10 to 20 individuals, at least one suffers from agenesis of at least one or two permanent teeth [ 1 , 3 – 13 , 16 – 109 ]. It is of importance since not only it is very frequent (as the most common dental anomaly) [ 1 – 14 ], but also it needs difficult and expensive treatments [ 19 , 105 , 110 , 111 ].…”

Section: Reviewmentioning

confidence: 99%

Meta-analysis and systematic review of factors biasing the observed prevalence of congenitally missing teeth in permanent dentition excluding third molars

Rakhshan

2013

Prog Orthod.

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No meta-analyses or systematic reviews have been conducted to evaluate numerous potential biasing factors contributing to the controversial results on congenitally missing teeth (CMT). We aimed to perform a rather comprehensive meta-analysis and systematic review on this subject. A thorough search was performed during September 2012 until April 2013 to find the available literature regarding CMT prevalence. Besides qualitatively discussing the literature, the meta-sample homogeneity, publication bias, and the effects of sample type, sample size, minimum and maximum ages of included subjects, gender imbalances, and scientific credit of the publishing journals on the reported CMT prevalence were statistically analyzed using Q-test, Egger regression, Spearman coefficient, Kruskal-Wallis, Welch t test (alpha = 0.05), and Mann-Whitney U test (α = 0.016, α = 0.007). A total of 111 reports were collected. Metadata were heterogeneous (P = 0.000). There was not a significant publication bias (Egger Regression P = 0.073). Prevalence rates differed in different types of populations (Kruskal-Wallis P = 0.001). Studies on orthodontic patients might report slightly (about 1%) higher prevalence (P = 0.009, corrected α = 0.016). Non-orthodontic dental patients showed a significant 2% decline [P = 0.007 (Mann-Whitney U)]. Enrolling more males in researches might significantly reduce the observed prevalence (Spearman ρ = -0.407, P = 0.001). Studies with higher minimums of subjects' age showed always slightly less CMT prevalence. This reached about -1.6% around the ages 10 to 13 and was significant for ages 10 to 12 (Welch t test P < 0.05). There seems to be no limit over the maximum age (Welch t test P > 0.2). Studies' sample sizes were correlated negatively with CMT prevalence (ρ = -0.250, P = 0.009). It was not verified whether higher CMT rates have better chances of being published (ρ = 0.132, P = 0.177). CMT definition should be unified. Samples should be sex-balanced. Enrolling both orthodontic and dental patients in similar proportions might be preferable over sampling from each of those groups. Sampling from children over 12 years seems advantageous. Two or more observers should examine larger samples to reduce the false negative error tied with such samples.

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Prevalence of malocclusion in 6-year-old Icelandic children: A study using plaster models and orthopantomograms

Cited by 58 publications

References 11 publications

The Prevalence of Malocclusion and Oral Habits among 5–7-Year-Old Children

The Prevalence of Malocclusion and Oral Habits among 5–7-Year-Old Children

Lateral incisor agenesis, canine impaction and characteristics of supernumerary teeth in a South European male population

Meta-analysis and systematic review of factors biasing the observed prevalence of congenitally missing teeth in permanent dentition excluding third molars

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