Prevalence of primate and interdental spaces for primary dentition in 3- to 6-year-old children in Taiwan

Kuo Ting Sun, Yu Fen Li, Jui Ting Hsu, Ming Gene Tu, Chung Jui Hung, Ya Hsin Hsueh, Hung Huey Tsai

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Background/Purpose: Spaced primary dentition plays a critical role in the eruption of permanent teeth and the establishment of ideal occlusion. A lack of these spaces in deciduous dentition may result in disproportionate jaw and tooth sizes. Additionally, spaced primary dentition is significantly affected by ethnic factors. However, few of these studies have been conducted in Asia. The purpose of this study was to investigate the prevalence of spaced primary dentition in Taiwan. Methods: One hundred and forty-seven 3- to 6-year-old Taiwanese children (58 girls and 89 boys) were recruited for a cross-sectional study. Primate and interdental spaces were recorded by intraoral photos. The prevalence of spaced dentition was evaluated. The interpersonal agreement of spaced dentition between the upper and lower arches was also assessed. Results: Most of the subjects had spaced primary dentition. The prevalence of primate space was 83.7% in the upper arch and 61.2% in the lower arch, whereas the prevalence of interdental space was 44.2% in the upper arch and 53.1% in the lower arch. The prevalence rates of interdental space and upper primate space were significantly higher in boys than in girls. Interdental spaces of the lower arch increased with age. Conclusion: Ethnic factors can affect the ratio of spaced dentition. Most of the 3- to 6-year-old Taiwanese children have spaced dentition. The boys have higher incidence of spaced dentition than the girls. Furthermore, primate space is more frequently found in the upper arch than in the lower arch, whereas interdental space is reversed.

Original languageEnglish
JournalJournal of the Formosan Medical Association
DOIs
Publication statusPublished - 2018

Fingerprint

Dentition
Deciduous Tooth
Taiwan
Primates
Tooth Eruption
Jaw
Tooth
Cross-Sectional Studies
Incidence

Keywords

  • Dental arch
  • Interdental space
  • Primary dentition
  • Primate space
  • Spaced dentition

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Prevalence of primate and interdental spaces for primary dentition in 3- to 6-year-old children in Taiwan. / Sun, Kuo Ting; Li, Yu Fen; Hsu, Jui Ting; Tu, Ming Gene; Hung, Chung Jui; Hsueh, Ya Hsin; Tsai, Hung Huey.

In: Journal of the Formosan Medical Association, 2018.

Research output: Contribution to journalArticle

Sun, Kuo Ting ; Li, Yu Fen ; Hsu, Jui Ting ; Tu, Ming Gene ; Hung, Chung Jui ; Hsueh, Ya Hsin ; Tsai, Hung Huey. / Prevalence of primate and interdental spaces for primary dentition in 3- to 6-year-old children in Taiwan. In: Journal of the Formosan Medical Association. 2018.
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abstract = "Background/Purpose: Spaced primary dentition plays a critical role in the eruption of permanent teeth and the establishment of ideal occlusion. A lack of these spaces in deciduous dentition may result in disproportionate jaw and tooth sizes. Additionally, spaced primary dentition is significantly affected by ethnic factors. However, few of these studies have been conducted in Asia. The purpose of this study was to investigate the prevalence of spaced primary dentition in Taiwan. Methods: One hundred and forty-seven 3- to 6-year-old Taiwanese children (58 girls and 89 boys) were recruited for a cross-sectional study. Primate and interdental spaces were recorded by intraoral photos. The prevalence of spaced dentition was evaluated. The interpersonal agreement of spaced dentition between the upper and lower arches was also assessed. Results: Most of the subjects had spaced primary dentition. The prevalence of primate space was 83.7{\%} in the upper arch and 61.2{\%} in the lower arch, whereas the prevalence of interdental space was 44.2{\%} in the upper arch and 53.1{\%} in the lower arch. The prevalence rates of interdental space and upper primate space were significantly higher in boys than in girls. Interdental spaces of the lower arch increased with age. Conclusion: Ethnic factors can affect the ratio of spaced dentition. Most of the 3- to 6-year-old Taiwanese children have spaced dentition. The boys have higher incidence of spaced dentition than the girls. Furthermore, primate space is more frequently found in the upper arch than in the lower arch, whereas interdental space is reversed.",
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AU - Tu, Ming Gene

AU - Hung, Chung Jui

AU - Hsueh, Ya Hsin

AU - Tsai, Hung Huey

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N2 - Background/Purpose: Spaced primary dentition plays a critical role in the eruption of permanent teeth and the establishment of ideal occlusion. A lack of these spaces in deciduous dentition may result in disproportionate jaw and tooth sizes. Additionally, spaced primary dentition is significantly affected by ethnic factors. However, few of these studies have been conducted in Asia. The purpose of this study was to investigate the prevalence of spaced primary dentition in Taiwan. Methods: One hundred and forty-seven 3- to 6-year-old Taiwanese children (58 girls and 89 boys) were recruited for a cross-sectional study. Primate and interdental spaces were recorded by intraoral photos. The prevalence of spaced dentition was evaluated. The interpersonal agreement of spaced dentition between the upper and lower arches was also assessed. Results: Most of the subjects had spaced primary dentition. The prevalence of primate space was 83.7% in the upper arch and 61.2% in the lower arch, whereas the prevalence of interdental space was 44.2% in the upper arch and 53.1% in the lower arch. The prevalence rates of interdental space and upper primate space were significantly higher in boys than in girls. Interdental spaces of the lower arch increased with age. Conclusion: Ethnic factors can affect the ratio of spaced dentition. Most of the 3- to 6-year-old Taiwanese children have spaced dentition. The boys have higher incidence of spaced dentition than the girls. Furthermore, primate space is more frequently found in the upper arch than in the lower arch, whereas interdental space is reversed.

AB - Background/Purpose: Spaced primary dentition plays a critical role in the eruption of permanent teeth and the establishment of ideal occlusion. A lack of these spaces in deciduous dentition may result in disproportionate jaw and tooth sizes. Additionally, spaced primary dentition is significantly affected by ethnic factors. However, few of these studies have been conducted in Asia. The purpose of this study was to investigate the prevalence of spaced primary dentition in Taiwan. Methods: One hundred and forty-seven 3- to 6-year-old Taiwanese children (58 girls and 89 boys) were recruited for a cross-sectional study. Primate and interdental spaces were recorded by intraoral photos. The prevalence of spaced dentition was evaluated. The interpersonal agreement of spaced dentition between the upper and lower arches was also assessed. Results: Most of the subjects had spaced primary dentition. The prevalence of primate space was 83.7% in the upper arch and 61.2% in the lower arch, whereas the prevalence of interdental space was 44.2% in the upper arch and 53.1% in the lower arch. The prevalence rates of interdental space and upper primate space were significantly higher in boys than in girls. Interdental spaces of the lower arch increased with age. Conclusion: Ethnic factors can affect the ratio of spaced dentition. Most of the 3- to 6-year-old Taiwanese children have spaced dentition. The boys have higher incidence of spaced dentition than the girls. Furthermore, primate space is more frequently found in the upper arch than in the lower arch, whereas interdental space is reversed.

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KW - Primate space

KW - Spaced dentition

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