Experimentálisan létrehozott trauma hatása patkánymetszókön.

Translated title of the contribution: Effect of experimentally induced trauma to the incisors in rats

I. Tarján, N. K. Rózsa, S. Tanase, W. Noriko, T. Yoshidai

Research output: Contribution to journalArticle

Abstract

The purpose of this study was to produce developmental lesions of enamel in rats by a quick and simple method and to examine the enamel hypoplasia caused by trauma. 4-day-old and 3-week-old Wistar rats were used. Trauma was produced by needle pricking and hitting on the mandibula. After one week incisors were removed together with jaws and prepared for microradiography, X-ray diffraction, light microscope and transmission electron microscope examination. Microradiographic findings in the needle pricking group revealed hypocalcified and hypoplastic enamel. The incidence was 73.7%. In the hitting group of 4-day-old rats the incidence was lower, 70.0%. Microradiographic findings in this group were diffuse hypoplasia in the surface enamel. Hitting of 3-week-old rats produced no enamel hypoplasia. Crystallinity of hypoplastic enamel was reduced in both a-axis and c-axis direction. Histological findings in 4-day-old rats revealed disarranged and detached ameloblasts at location trauma. These results indicate that a needle pricking method involving secretory stage ameloblasts of 4-day-old rat incisors can induce a considerable amount of enamel hypoplasia.

Original languageHungarian
Pages (from-to)157-161
Number of pages5
JournalFogorvosi szemle
Volume94
Issue number4
Publication statusPublished - 2001

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Dental Enamel Hypoplasia
Incisor
Ameloblasts
Wounds and Injuries
Needles
Dental Enamel
Microradiography
Incidence
Jaw
X-Ray Diffraction
Wistar Rats
Electrons
Light

Cite this

Tarján, I., Rózsa, N. K., Tanase, S., Noriko, W., & Yoshidai, T. (2001). Experimentálisan létrehozott trauma hatása patkánymetszókön. Fogorvosi szemle, 94(4), 157-161.

Experimentálisan létrehozott trauma hatása patkánymetszókön. / Tarján, I.; Rózsa, N. K.; Tanase, S.; Noriko, W.; Yoshidai, T.

In: Fogorvosi szemle, Vol. 94, No. 4, 2001, p. 157-161.

Research output: Contribution to journalArticle

Tarján, I, Rózsa, NK, Tanase, S, Noriko, W & Yoshidai, T 2001, 'Experimentálisan létrehozott trauma hatása patkánymetszókön.', Fogorvosi szemle, vol. 94, no. 4, pp. 157-161.
Tarján I, Rózsa NK, Tanase S, Noriko W, Yoshidai T. Experimentálisan létrehozott trauma hatása patkánymetszókön. Fogorvosi szemle. 2001;94(4):157-161.
Tarján, I. ; Rózsa, N. K. ; Tanase, S. ; Noriko, W. ; Yoshidai, T. / Experimentálisan létrehozott trauma hatása patkánymetszókön. In: Fogorvosi szemle. 2001 ; Vol. 94, No. 4. pp. 157-161.
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