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Titolo:
Microleakage of Tetric Ceram/Excite and Ariston pHc/Ariston Liner
Autore:
Santini, A; Plasschaert, AJM; Mitchell, S;
Indirizzi:
Univ Nijmegen, Fac Dent, Dept Cariol & Endodontol, Nijmegen, Netherlands Univ Nijmegen Nijmegen Netherlands & Endodontol, Nijmegen, Netherlands Univ Edinburgh, Royal Dick Sch Vet Studies, SEM Unit, Edinburgh, Midlothian, Scotland Univ Edinburgh Edinburgh Midlothian Scotland burgh, Midlothian, Scotland
Titolo Testata:
AMERICAN JOURNAL OF DENTISTRY
fascicolo: 5, volume: 14, anno: 2001,
pagine: 309 - 313
SICI:
0894-8275(200110)14:5<309:MOTCAA>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
DENTIN INTERDIFFUSION ZONE; POLYMERIZATION CONTRACTION; COMPARATIVE SEM; HYBRID LAYER; SMEAR LAYERS; RESIN; RESTORATIONS; NANOLEAKAGE; LEAKAGE; STRESS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Santini, A Inglis Green House,13 Inglis Green Rd, Edinburgh EH14 2EP, Midlothian, Scotland Inglis Green House,13 Inglis Green Rd Edinburgh Midlothian Scotland EH14 2EP
Citazione:
A. Santini et al., "Microleakage of Tetric Ceram/Excite and Ariston pHc/Ariston Liner", AM J DENT, 14(5), 2001, pp. 309-313

Abstract

Purpose: To investigate the microleakage associated with a hybrid resin-based composite, Tetric Ceram, bonded with the single component dentin bonding agent Excite and Ariston pHc bonded with Ariston Liner. Ariston pHc bonded with Excite and Tetric Ceram bonded with Prime and Bond NT were used as controls. Materials and Methods: Twenty-four extracted human premolars and molars were randomly assigned to four groups. Group 1: cavities were bonded with Excite and filled with Tetric Ceram. Group 2: cavities were bonded with Ariston Liner and filled with Ariston pHc. Group 3, control: cavities were bonded with Prime & Bond NT and filled with Tetric Ceram. Group 4, control: cavities were bonded Excite and filled with Ariston pHc. Cavities were cut in both the buccal and lingual surfaces. Half of each preparation was inenamel and the other was in cementum/dentin. The teeth were thermocycled at 15 degreesC for 2 s, 35 degreesC for 28 s and 45 degreesC for 2 s for 5000 cycles after which the restorations were examined microscopically for leakage using procion brilliant red as a marker. SEM microphotographs were prepared from dye-labeled and non dye-labeled areas to illustrate the micromorphology of the systems. Results: None of the groups showed microleakage at the enamel margins. All groups showed microleakage at the gingival margins. At the gingival margin there was a significant difference between the groups (Kruskal-Wallis ANOVA, P= 0.1111.). Ariston pHc/Ariston Liner showed significantly lower microleakage scores than the other groups (Dunn's MultipleComparison test). SEM showed that in non-dye labeled areas, Ariston pHc/Ariston Liner was in close apposition to the deeper dental tissues. The "total etch" technique resulted in a zone of demineralization. Debonding occurred at or near the top of the hybrid layer in > 95% of specimens.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/09/18 alle ore 08:08:48