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An In Vitro Comparative SEM Study Of Marginal Adaptation Of IRM, Light‐ And Chemically‐Cured Glass Ionomer, And Amalgam In Furcation Perforations
Author(s) -
Rajablou Neda,
Azimi Shahram
Publication year - 2001
Publication title -
australian endodontic journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.703
H-Index - 34
eISSN - 1747-4477
pISSN - 1329-1947
DOI - 10.1111/j.1747-4477.2001.tb00478.x
Subject(s) - glass ionomer cement , amalgam (chemistry) , dentistry , molar , coronal plane , materials science , chemistry , medicine , electrode , radiology
The furcation regions of 30 human mandibular molars were perforated and sealed using four different materials: IRM, light‐ and chemically‐cured glass ionomer cement (GIC), and amalgam. The materials were compared for marginal gaps in coronal, mid, and apical regions after routine SEM processing. While light‐cured GIC showed the smallest gaps in the three regions, in mid and coronal regions chemically‐cured GIC, and in apical regions amalgam, showed the largest gaps. IRM cases showed the highest rate of fillings with a good “fit”, whereas the majority of amalgam cases and none of the chemically‐cured GIC cases were overfilled.