Purpose: To determine, by means of a non-destructive experimental procedure, the extent to which tooth cusps are weakened by endodontic procedures and the effectiveness of adhesive bonding restoration in reducing cuspal deflection as a function of different restorative procedures. Methods: A mechanically controlled loading device induced cuspal deflection by axial force (range 98-294 N) on an occlusal surface while LTS laser twin sensors registered the amount of deflection. Cusp deflection values, in microns, were recorded for each tooth. Thirty sound maxillary premolars teeth were sequentially evaluated in the following conditions: A) intact tooth; B) completion of endodontic and restorative procedures. Teeth were randomly divided into five groups and restored respectively with: A) amalgam (Dispersalloy); B) Spectrum TPH; C) Surefil; D) Esthet-X; E) Esthet-X + Dyract Flow. Results: The average loading force needed to induce 1 μm cusp deflection was evaluated, for all groups, in intact teeth (range 49.52-58.76 N/μm) and in restored teeth (range 8.56-47.05 N/μm). Statistical analysis (ANOVA for repeated measures) has been performed. Mean structural recovery values after restorative treatment were 17% with amalgam, 60% with Spectrum TPH, 59% with SureFil, 54% with Esthet-X, and 99% with Esthet-X/Dyract.

Cerutti, A., Flocchini, P., Madini, L., Mangani, F., Putignano, A., Docchio, F. (2004). Effects of bonded composites vs. amalgam on resistance to cuspal deflection for endodontically-treated premolar teeth. AMERICAN JOURNAL OF DENTISTRY, 17(4), 295-300.

Effects of bonded composites vs. amalgam on resistance to cuspal deflection for endodontically-treated premolar teeth

MANGANI, FRANCESCO;
2004-08-01

Abstract

Purpose: To determine, by means of a non-destructive experimental procedure, the extent to which tooth cusps are weakened by endodontic procedures and the effectiveness of adhesive bonding restoration in reducing cuspal deflection as a function of different restorative procedures. Methods: A mechanically controlled loading device induced cuspal deflection by axial force (range 98-294 N) on an occlusal surface while LTS laser twin sensors registered the amount of deflection. Cusp deflection values, in microns, were recorded for each tooth. Thirty sound maxillary premolars teeth were sequentially evaluated in the following conditions: A) intact tooth; B) completion of endodontic and restorative procedures. Teeth were randomly divided into five groups and restored respectively with: A) amalgam (Dispersalloy); B) Spectrum TPH; C) Surefil; D) Esthet-X; E) Esthet-X + Dyract Flow. Results: The average loading force needed to induce 1 μm cusp deflection was evaluated, for all groups, in intact teeth (range 49.52-58.76 N/μm) and in restored teeth (range 8.56-47.05 N/μm). Statistical analysis (ANOVA for repeated measures) has been performed. Mean structural recovery values after restorative treatment were 17% with amalgam, 60% with Spectrum TPH, 59% with SureFil, 54% with Esthet-X, and 99% with Esthet-X/Dyract.
ago-2004
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore MED/28 - MALATTIE ODONTOSTOMATOLOGICHE
English
compomer; dental alloy; dispersalloy; Dyract; Esthet X; Esthet-X; resin; Spectrum composite resin; SureFil packable composite; adolescent; adult; analysis of variance; article; chemistry; clinical trial; controlled clinical trial; controlled study; dental bonding; elasticity; endodontics; human; mastication; pathophysiology; premolar tooth; randomized controlled trial; tooth crown; tooth pulp disease; Adolescent; Adult; Analysis of Variance; Bicuspid; Bite Force; Compomers; Composite Resins; Dental Alloys; Dental Amalgam; Dental Bonding; Elasticity; Humans; Root Canal Therapy; Tooth Crown; Tooth, Nonvital
PMID: 15478495
Cerutti, A., Flocchini, P., Madini, L., Mangani, F., Putignano, A., Docchio, F. (2004). Effects of bonded composites vs. amalgam on resistance to cuspal deflection for endodontically-treated premolar teeth. AMERICAN JOURNAL OF DENTISTRY, 17(4), 295-300.
Cerutti, A; Flocchini, P; Madini, L; Mangani, F; Putignano, A; Docchio, F
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/35825
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