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001-es BibID:	BIBFORM070758
Első szerző:	Dobó Nagy Csaba (fogszakorvos)
Cím:	Measurement of periapical pressure crerated by occlusal loading / Dobó-Nagy Csaba, Fejérdy Pál, Angyal János, Harasztosi Lajos, Daróczi Lajos, Beke Dezső, Wesselink Paul R.
Dátum:	2002
ISSN:	0143-2885
Megjegyzések:	Aim To develop an in vitro model in which the pressure in the periapical tissues can be measured during loading.Methodology Extracted human maxillary central incisors were embedded in resin blocks that had physical characteristics similar to those of 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 on three consecutive occasions. A minute resistor embedded in the periapical space was used to detect apical pressure changes during occlusal loading. The ratio of apical pressure changes (?P) to the loading force changes (?F) was calculated.Results The periapical pressure detected was in direct proportion to the loading force. The mean value of ?P/?F was 5.994 kPa N-1 (SD = 2.04).Conclusions Direct proportionality was found between the coronal loading and the apical hydrostatic pressure. The ?P/?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 the same magnitude as that estimated with the finite element method.
Tárgyszavak:	Orvostudományok Elméleti orvostudományok idézhető absztrakt fogászat gyökérkezelés periapicalis
Megjelenés:	International Endodontic Journal. - 35 (2002), p. 105. -
További szerzők:	Fejérdy Pál Angyal János (1962-) (fogszakorvos) Harasztosi Lajos (1962-) (villamosmérnök) Daróczi Lajos (1965-) (fizikus) Beke Dezső László (1945-) (fizikus) Wesselink, Paul R.
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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