Prevalence of malocclusion traits and orthodontic treatment in a Finnish adult population

Abstract

Objective The aim of the study was to examine the prevalence of malocclusion traits and the extent of orthodontic treatment in a Finnish adult population. Materials and methods The study population comprised subjects (n = 1964) from the Northern Finland Birth Cohort 1966 living in the city of Oulu and within 100 km of it. A clinical oral and dental examination with registration of occlusion was carried out in 2012 in connection with a 46-year follow-up survey. Data on previous orthodontic treatment were collected based on a questionnaire. Results In the clinical examination, 39.5% of the subjects had at least one malocclusion trait. The most common malocclusion traits were lateral crossbite (17.9%), overbite ≥ 6 mm (11.7%) and overjet ≥ 6 mm (9.7%). Crossbite on the left premolars, negative overjet and increased overbite were found more frequently in men. The prevalence of malocclusion traits was at the same level in treated and untreated groups. Overall, 18.6% of the subjects had undergone orthodontic treatment. Women showed a significantly higher prevalence of orthodontic treatment. Conclusions The most common malocclusion trait in the present study was lateral crossbite. Significant male dominance in the prevalence of malocclusion was observed, which has not been reported earlier in Finland. Orthodontic treatment of malocclusion traits was more common among females in Northern Finland. This study indicates that orthodontic treatment provided in childhood was, on average, adequate in reducing malocclusion traits to the level observed in the general population.

The role of social comparison in social judgments of dental appearance: An experimental study

“…The motivating factor for females to seek orthodontic treatment seems to be for enhancing facial aesthetics [4]. Similar trends have been reported worldwide [5][6][7].…”

Prevalence of Dental Malocclusions in Patients admitted to the Department of Orthodontics, School of Dentistry, Tabriz, in 2016

“…Malocclusion also refers to noncompliance or incorrect pairing between upper and lower maxilla between dental arch and as one of the problems that endangers oro-facial system and can create problems in this system, such as loss of function, loss of beauty, temporomandibular problems, and periodontal diseases. 1,10,12,13 One of the important factors in the treatment and prevention of any disease is determination of epidemiological indicators of that disease, i.e., malocclusion, which is not exceptional from this regulation. 8 A treatment way or prevention method of a disease can never be known to be effective in controlling that disease, except a significant change is made over time in the prevalence of that disease.…”

“…3 Similar studies were carried out in different countries in which their results are different. 1,9,10 Owing to the impact of environmental and genetic factors and the role of geographic areas in the dispersion of types of malocclusion in different countries, various distribution and prevalence of malocclusions have been reported. 10 In Iran, in spite of few studies on this area, there is still the need to evaluate the prevalence in different cities and treatment centers, from different aspects.…”

“…1,9,10 Owing to the impact of environmental and genetic factors and the role of geographic areas in the dispersion of types of malocclusion in different countries, various distribution and prevalence of malocclusions have been reported. 10 In Iran, in spite of few studies on this area, there is still the need to evaluate the prevalence in different cities and treatment centers, from different aspects. According to the aforesaid issues, the aim of the current study was that, with the prevalence of dental malocclusions in patients referred to orthodontic department of Tabriz, it could evaluate the relationship of malocclusion with gender along with specifying the percentage of patients with different malocclusions and the tendency of the community toward the treatment of dentoalveolar anomalies; in addition, by registering these information, it could evaluate the increase or decrease in different malocclusions in the coming years in the city of Tabriz.…”

The prevalence of clinically meaningful malocclusion among US adults

“…No statistically significant differences were found for the other aspects of malocclusion reported in the NHANES . Other, smaller scale, studies have found that males have significantly deeper bites, greater buccal crossbite and greater reverse overjet than females . Once again, sex differences in the prevalence of malocclusion among US adults have not been evaluated statistically.…”