Estimated Time of Biomineralization in Developing Rat Incisors

Min Kyung Park (박민경); 민수영; Je Seon Song (송제선); JAE HO LEE (이제호); HAN-SUNG JUNG (정한성); SEONG OH KIM (김성오)

doi:10.5933/JKAPD.2017.44.2.138

Estimated Time of Biomineralization in Developing Rat Incisors

Journal of the Korean academy of pediatric dentistry
Abbr : J Korean Acad Pediatr Dent
2017, 44(2), pp.138-146
DOI : 10.5933/JKAPD.2017.44.2.138
Publisher : The Korean Academy Of Pediatric Dentistry
Research Area : Medicine and Pharmacy > Dentistry

Min Kyung Park ¹, 민수영 ¹, Je Seon Song ¹, JAE HO LEE ¹, HAN-SUNG JUNG ¹, SEONG OH KIM ¹

¹연세대학교

Accredited

ABSTRACT

The aim of this study was to estimate time of biomineralization in developmental stages of rat lower incisors. Eruption length was measured. Four stages of incisor development were identified on histologic and microscopic computerized tomography (micro-CT) sections: (1) preodontoblast, (2) dentin matrix secretion, (3) enamel matrix secretion, and (4) enamel calcification. The overall eruption rate of the rat lower incisor was 600 ± 70 μm/day (mean ± SD; n = 12). The length of the enamel secretion was 4.59 ± 0.75 mm in histologic section, was 3.64 ± 0.63 mm in radiographic section, which converts to 180.4 ± 30.0 hours, 145 ± 25 hours respectively (n = 24). These findings suggested that the four biomineralizing developmental stages of the rat incisor took only several days. The significance of this animal study was to provide understanding for the rapid biomineralization process of developing rat tooth germ by analysis of tooth forming period.

KEYWORDS

Rat, Lower incisor, Eruption rate, Biomineralization

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Journal of the Korean academy of pediatric dentistry 2023 KCI Impact Factor : 0.48

Estimated Time of Biomineralization in Developing Rat Incisors

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* References for papers published after 2023 are currently being built.

Journal of the Korean academy of pediatric dentistry 2023 KCI Impact Factor : 0.48

Estimated Time of Biomineralization in Developing Rat Incisors

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