Prevalence of Malocclusion in 3- to 5-Year-Old Children in Shanghai, China.

Xinhua Zhou,Yan Wang,Hao Zhang,Yuehua Liu,Ying Zhang,Li Chen

doi:10.3390/ijerph14030328

Abstract

The aim of the present study was to obtain the prevalence of malocclusions in preschool children in Shanghai, China. A cross-sectional survey was conducted among 2335 children aged 3–5 years from kindergartens. Several occlusal parameters were clinically assessed, including second deciduous molar terminal plane, canine relationship, degree of overjet and overbite, anterior and posterior crossbite, and the presence or absence of physiologic spaces and crowding. All parents of subjects were asked to fill in the oral health knowledge questionnaires. The prevalence of malocclusion in primary dentition in Shanghai was 83.9%, and no significant differences were found in genders. Data showed that the prevalence of deep overbite (63.7%) was the highest in children with malocclusion, followed by deep overjet (33.9%), midline deviation (26.6%), anterior crossbite (8.0%) and anterior crowding (6.5%). The results revealed a high prevalence of malocclusion in primary dentition in children aged 3–5 years old of Shanghai, especially in vertical anomalies. The need for preventive orthodontic therapy is extremely desired and oral health education about malocclusion should be strengthened.

Highlights

As an improving quality of living, people are hoping to own an aesthetically pleasing appearance.This evolution has driven many industries to satisfy their clients’ aesthetic needs, including dentistry.The rapid development of China’s economy has resulted changes in diet, making people consume more refined food
The aim of the present study was to evaluate the prevalence of malocclusion in the primary dentition epidemiological reference for the development of early intervention and prevention of the and bad oral habits of preschoolers in the city of Shanghai, in order to provide an epidemiological occurrence of malocclusion
Data showed that prevalence of deep overbite (63.7%) was the highest in children with malocclusion, followed by deep overjet (33.9%), midline deviation (26.6%), anterior crossbite (8.0%), and anterior crowding (6.5%) (Tables 2–5)

Summary

Introduction

As an improving quality of living, people are hoping to own an aesthetically pleasing appearance.This evolution has driven many industries to satisfy their clients’ aesthetic needs, including dentistry.The rapid development of China’s economy has resulted changes in diet, making people consume more refined food. As an improving quality of living, people are hoping to own an aesthetically pleasing appearance. This evolution has driven many industries to satisfy their clients’ aesthetic needs, including dentistry. The rapid development of China’s economy has resulted changes in diet, making people consume more refined food. This dietary change results in insufficient jaw growth [1]. Malocclusion is a disorder of the craniofacial complex that affects the development of dental maxillofacial region and masticatory function [2]. It is important to find out the incidence of various malocclusions and corresponding methods to prevent or correct them

Objectives

Results

Conclusion