A rágóeró keltette periapikális nyomás mérése.

Translated title of the contribution: Measurement of periapical pressure created by occlusal loading

Nagy Csaba Dobó, P. Fejérdy, János Angyal, Lajos Harasztosi, L. Daróczi, D. Beke, Paul R. Wesselink

Research output: Contribution to journalArticle

Abstract

The aim of this study was to develop an in vitro model in which the pressure in the periapical tissues can be measured during loading. Extracted human maxillary central incisors were embedded into resin blocks that had physical characteristics similar to bone and periodontal ligament. Each tooth was loaded with 20, 40, 50, 60, 75, 85, 100, 200, 300 and 450 N vertical forces from the incisal edge of the crown; this procedure was carried out three consecutive times. A minute resistor embedded in the periapical space was used to detect apical pressure changes during occlusal loading. The ratio of apical pressure changes (delta P) to the loading force changes (delta F) was calculated. The periapical pressure detected was in direct proportion to the loading force. The mean value of delta P/delta F was 5.994 kPa/N (SD = 2.04). Direct proportionality was found between the coronal loading and the apical hydrostatic pressure. The (delta P)/(delta F) ratio determined in this study makes it easier to estimate the apical hydrostatic pressure values during occlusal loading of single rooted teeth. In this study the apical pressure generated under occlusal loading was of the same magnitude as that estimated with the finite element method.

Original languageHungarian
Pages (from-to)81-84
Number of pages4
JournalFogorvosi szemle
Volume97
Issue number2
Publication statusPublished - 2004

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Pressure
Hydrostatic Pressure
Tooth
Periapical Tissue
Periodontal Ligament
Incisor
Crowns
Bone and Bones

Cite this

Dobó, N. C., Fejérdy, P., Angyal, J., Harasztosi, L., Daróczi, L., Beke, D., & Wesselink, P. R. (2004). A rágóeró keltette periapikális nyomás mérése. Fogorvosi szemle, 97(2), 81-84.

A rágóeró keltette periapikális nyomás mérése. / Dobó, Nagy Csaba; Fejérdy, P.; Angyal, János; Harasztosi, Lajos; Daróczi, L.; Beke, D.; Wesselink, Paul R.

In: Fogorvosi szemle, Vol. 97, No. 2, 2004, p. 81-84.

Research output: Contribution to journalArticle

Dobó, NC, Fejérdy, P, Angyal, J, Harasztosi, L, Daróczi, L, Beke, D & Wesselink, PR 2004, 'A rágóeró keltette periapikális nyomás mérése.', Fogorvosi szemle, vol. 97, no. 2, pp. 81-84.
Dobó, Nagy Csaba ; Fejérdy, P. ; Angyal, János ; Harasztosi, Lajos ; Daróczi, L. ; Beke, D. ; Wesselink, Paul R. / A rágóeró keltette periapikális nyomás mérése. In: Fogorvosi szemle. 2004 ; Vol. 97, No. 2. pp. 81-84.
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