Maxillary dental and palatal morphological characteristics in 62 children with impacted maxillary canine in mixed dentition

doi:10.19439/j.sjos.2021.02.011

Abstract

Abstract: PURPOSE: The aim of this study was to compare the difference of dental arch and palatal morphology between children with impacted maxillary canine and without impacted maxillary canine, to provide reference for early diagnosis and treatment of impacted maxillary canine. METHODS: Sixty-two children, 8-11 years of age (9.8±1.04 years), were divided into experimental group and control group, with 31 children in each group. Digital casts were obtained using 3D laser scanner from maxillary models. Dental arch width, length, basal bone width, palatal width, height, surface area and volume were measured. Paired t test was performed with SPSS 24.0 software package. RESULTS: Dental arch width and palatal width were significantly narrower in experimental group than in control group(P<0.05), but there was on significant difference in dental arch length, basal bone width and palatal height between the two groups(P>0.05).Additionally, palatal surface area and volume were significantly larger in control group than in experimental group(P<0.05). CONCLUSIONS: Children with impacted maxillary canine have smaller maxillary dental arch width, palatal width, palatal surface area and volume compared to control group. Dental arch width, palatal width, palatal surface area and volume should be taken into consideration when early identifying impacted maxillary canine.

Key words: Three-dimensional laser scanner, Maxillary canine impaction, Dental arch, Palatal morphology

CLC Number:

R788

TANG Wan-hong, ZENG Huan, LIN Ju-hong. Maxillary dental and palatal morphological characteristics in 62 children with impacted maxillary canine in mixed dentition[J]. Shanghai Journal of Stomatology, 2021, 30(2): 167-172.

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