[The malocclusion of primary dentition in the suburb of Chengdu: a cross-section survey].

Objective: To reveal malocclusion of primary dentition in the suburb of Chengdu.

Methods: Cross-section survey and malocclusion rate calculation were performed.

Results: There are 491 children with malocclusion from total 1 279 children; the rate of malocclusion is 38.