Comparison of Post Space Volume Changes Following Fiber Post Removal Using Er,Cr:YSGG Laser Versus Ultrasonic Instrument.
J Prosthodont
; 31(3): 245-251, 2022 Mar.
Article
em En
| MEDLINE
| ID: mdl-34021668
ABSTRACT
PURPOSE:
The purpose of this in vitro study was to compare the post space volume changes following removal of glass fiber posts in endodontically treated teeth by using erbium, chromiumyttrium-scandium-gallium-garnet (Er,CrYSGG) laser to the conventional ultrasonic method. MATERIALS ANDMETHODS:
Twelve single-root human extracted teeth were cut into 13 mm near cementoenamel junction (CEJ), and then underwent endodontic treatment. The post spaces were prepared to 8 mm in length. Glass fiber posts were inserted with self-curing resin cement. Specimens were randomly assigned to laser or ultrasonic methods for their post removal. Post space volumes were measured using microcomputed tomography (micro-CT) before post cementation and after post removal. Dentin thickness was measured after post removal at coronal, middle, and apical third of the root canal space. Paired t-test and t-test were used to compare space volumes between before post cementation and after post removal, and between laser and ultrasonic groups, respectively.RESULTS:
Six specimens were tested for each group. The average volume change was 6.499 mm3 in laser and 7.418 mm3 in ultrasonic method. There was not a significant difference between laser and ultrasonic group in respect of post space volume changes (p = 0.71). Both methods showed significant volume increase following post removal (p < 0.05). Significantly less dentin was lost when laser was used for post removal in the coronal portion of the post space (p = 0.002).CONCLUSIONS:
Er,CrYSGG laser can be used as effective option, comparable to the conventional ultrasonic method when removing posts in endodontically treated teeth. Laser has the potential to provide conservative post removal.Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Lasers de Estado Sólido
Tipo de estudo:
Clinical_trials
Limite:
Humans
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article