Etiology of Malocclusion and Dominant Orthodontic Problems in Mixed Dentition: A Cross-sectional Study in a Group of Thai Children Aged 8-9 Years.

Background: Etiology of malocclusion can be the cause of deviation in the skeleton, dental, and soft tissue development in children. Identifying etiology of malocclusion and dominant orthodontic problems as well as early detection could help in future effective treatment, management, and public health planning.

Materials And Methods: A cross-sectional study was performed among 202 children.

Orthodontic treatment needs of children with high caries using Index for Preventive and Interceptive Orthodontic Needs (IPION).

Aim: This study aimed to use the Index for Preventive and Interceptive Orthodontic Treatment Needs (IPION) in high caries children and to investigate the IPION components that differentiate level of preventive and interceptive orthodontic treatment need (P&I Tx need).

Methods: A sample of 202 children (8-9 years of age) was randomly selected from the schools in urban and rural areas in Songkhla Province, Southern Thailand. Dental models, intra-oral photographs, and the examination of oral function were collected and the P&I Tx need was determined according to IPION.