The prognostic value of visually assessing enamel microcracks: Do debonding and adhesive removal contribute to their increase?

The Angle Orthodontist
Irma DumbryteMangirdas Malinauskas

Abstract

To find a correlation between the severity of enamel microcracks (EMCs) and their increase during debonding and residual adhesive removal (RAR). Following their examination with scanning electron microscopy (SEM), 90 extracted human premolars were divided into three groups of 30: group 1, teeth having pronounced EMCs (visible with the naked eye under normal room illumination); group 2, teeth showing weak EMCs (not apparent under normal room illumination but visible by SEM); and group 3, a control group. EMCs have been classified into weak and pronounced, based on their visibility. Metal brackets (MB) and ceramic brackets (CB), 15 of each type, were bonded to all the teeth from groups 1 and 2. Debonding was performed with pliers, followed by RAR. The location, length, and width of the longest EMCs were measured using SEM before and after debonding. The mean overall width (Woverall) was higher for pronounced EMCs before and after debonding CB (P < .05), and after the removal of MB. Pronounced EMCs showed greater length values using both types of brackets. After debonding, the increase in Woverall of pronounced EMCs was 0.57 µm with MB (P < .05) and 0.30 µm with CB; for weak EMCs, - 0.32 µm with MB and 0.30 µm with CB. Although th...Continue Reading

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Citations

Feb 6, 2017·Microscopy Research and Technique·Jacqueline Adelina Rodríguez-ChávezIrma Araceli Belio-Reyes
Dec 31, 2016·The Angle Orthodontist·Rafael Santos RochaTiciane Cestari Fagundes
Apr 20, 2017·Dental Materials Journal·Irma DumbryteMangirdas Malinauskas
Feb 6, 2017·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Irma DumbryteMangirdas Malinauskas
Aug 28, 2020·Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·Fabiano G FerreiraOswaldo de V Vilella
Nov 27, 2020·Microscopy Research and Technique·Jacqueline Adelina Rodríguez-ChávezFernando Javier Aguilar-Pérez
Jan 5, 2021·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Irma Dumbryte, Mangirdas Malinauskas

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