Edina Lempel1, Ákos Tóth2, Tamás Fábián3, Károly Krajczár3, József Szalma4. 1. Department of Restorative Dentistry and Periodontology, University of Pécs, Pécs, Hungary. Electronic address: lempel.edina@pte.hu. 2. Faculty of Sciences, University of Pécs, Pécs, Hungary. 3. Department of Restorative Dentistry and Periodontology, University of Pécs, Pécs, Hungary. 4. Department of Oral and Maxillofacial Surgery, University of Pécs, Pécs, Hungary.
Abstract
OBJECTIVES: This 10-year retrospective study investigated the differences in the changes and the longevity of Class II restorations using 4 similar microhybrid resin composites (Filtek Z250, Herculite XR, Gradia Direct Posterior, Renew). METHODS: Data were collected from patient records. Those patients who received posterior restoration between 2001 and 2003, and who still visited the clinical practice for regular check-up visits were selected. A total of 225 adult patients (86 males, 139 females) with 701 restorations were evaluated by 2 operators using the USPHS criteria. Data were analyzed with Fisher's Exact Test, Pearson's Chi-Square Test and Kaplan-Meier analysis (p<0.05). RESULTS: A failure rate of 2.1% was detected. The reasons of failures included restoration fracture, secondary caries and endodontic treatment. Similar survival rates for Gradia Direct Posterior (91.25%) and Renew (92.19%) were observed; better performance was observed with the Filtek Z250 (99.1%) and Herculite XR (98.64%). There was a higher probability of failure in 3 surface (n=10) than in 2 surface (n=5) restorations (p<0.001), and this rate was similar when molars (n=8) and premolars (n=7) were compared. The most frequent but clinically acceptable deficiency was the marginal discoloration. SIGNIFICANCE: All four microhybrid resin composites showed acceptable clinical durability in Class II restorations during the 10-year follow-up period, with an overall survival rate of >97.8%. Higher rates of failures and deficiencies were observed with the Renew (fracture) and Gradia Direct Posterior (color match), respectively.
OBJECTIVES: This 10-year retrospective study investigated the differences in the changes and the longevity of Class II restorations using 4 similar microhybrid resin composites (Filtek Z250, Herculite XR, Gradia Direct Posterior, Renew). METHODS: Data were collected from patient records. Those patients who received posterior restoration between 2001 and 2003, and who still visited the clinical practice for regular check-up visits were selected. A total of 225 adult patients (86 males, 139 females) with 701 restorations were evaluated by 2 operators using the USPHS criteria. Data were analyzed with Fisher's Exact Test, Pearson's Chi-Square Test and Kaplan-Meier analysis (p<0.05). RESULTS:A failure rate of 2.1% was detected. The reasons of failures included restoration fracture, secondary caries and endodontic treatment. Similar survival rates for Gradia Direct Posterior (91.25%) and Renew (92.19%) were observed; better performance was observed with the Filtek Z250 (99.1%) and Herculite XR (98.64%). There was a higher probability of failure in 3 surface (n=10) than in 2 surface (n=5) restorations (p<0.001), and this rate was similar when molars (n=8) and premolars (n=7) were compared. The most frequent but clinically acceptable deficiency was the marginal discoloration. SIGNIFICANCE: All four microhybrid resin composites showed acceptable clinical durability in Class II restorations during the 10-year follow-up period, with an overall survival rate of >97.8%. Higher rates of failures and deficiencies were observed with the Renew (fracture) and Gradia Direct Posterior (color match), respectively.
Authors: G E Kim; A A Leme-Kraus; R Phansalkar; G Viana; C Wu; S-N Chen; G F Pauli; Akb Bedran-Russo Journal: Oper Dent Date: 2016-11-28 Impact factor: 2.440
Authors: Edina Lempel; Zsuzsanna Czibulya; Bálint Kovács; József Szalma; Ákos Tóth; Sándor Kunsági-Máté; Zoltán Varga; Katalin Böddi Journal: Int J Mol Sci Date: 2016-05-20 Impact factor: 5.923