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Research Article
- A 3-year retrospective study of clinical durability of bulk-filled resin composite restorations
- Muhittin Ugurlu, Fatmanur Sari
- Restor Dent Endod 2022;47(1):e5. Published online December 30, 2021
- DOI: https://doi.org/10.5395/rde.2022.47.e5
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Abstract
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ePub Objectives This study aimed to assess the clinical longevity of a bulk-fill resin composite in Class II restorations for 3-year.
Materials and Methods Patient record files acquired from the 40 patients who were treated due to needed 2 similar sizes Class II composite restorations were used for this retrospective study. In the experimental cavity, the flowable resin composite SDR was inserted in the dentinal part as a 4 mm intermediate layer. A 2 mm coverage layer with a nano-hybrid resin composite (CeramX) was placed on SDR. The control restoration was performed by an incremental technique of 2 mm using the nano-hybrid resin composite. The restorations were blindly assessed by 2 calibrated examiners using modified United States Public Health Service criteria at baseline and 1, 2, and 3 years. The data were analyzed using non-parametric tests (
p = 0.05).Results Eighty Class II restorations were evaluated. After 3-years, 4 restorations (5%) failed, 1 SDR + CeramX, and 3 CeramX restorations. The annual failure rate (AFR) of the restorations was 1.7%. The SDR + CeramX group revealed an AFR of 0.8%, and the CeramX group an AFR of 2.5% (
p > 0.05). Regarding anatomical form and marginal adaptation, significant alterations were observed in the CeramX group after 3-years (p < 0.05). The changes in the color match were observed in each group over time (p < 0.05).Conclusions The use of SDR demonstrated good clinical durability in deep Class II resin composite restorations.
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Original Article
- Replacement of posterior restorations
- Ji-Young Kim, Kyoung-Kyu Choi, Sang-Jin Park
- J Korean Acad Conserv Dent 2006;31(6):460-469. Published online November 30, 2006
- DOI: https://doi.org/10.5395/JKACD.2006.31.6.460
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Abstract
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This article complies a survey on the replacement of the posterior restorations and accesses possible factors that influence the replacement of posterior restorations.
The data was collected from patients that visited department of conservative dentistry from Dec 1st 2003, to Sep 3rd 2004. Teeth was restricted to posterior permanent teeth. 9 dentists recorded age, gender of patients, tooth location, cavity form and restorative material. They rated marginal adaptation, anatomic form, secondary caries of old restoration by modified Ryge criteria system. The statistical analysis was performed with Chi square test (p < 0.05) for replacement ratio according to patients, tooth factor and One-way ANOVA was performed for comparison of old restoration according to restorative material.
The results were as follows;
1. The female (62%) was statistically higher ratio than the male (38%).
2. The distribution of replacement case according to age, the rate of replacement was in descending order, 20's (38.3%), 40's (16.8%), 30's (15.9%), 10's (11.1%), 50's (9.2%), 60's (8.7%).
3. The rate of replacement was 88% for molar and 12% for premolar (p < 0.05).
4. The rate of replacement was 39% for maxillar and 61% for mandible (p < 0.05).
5. The material of restorations was amalgam (69%), gold inlay (17%), composite resin (13%).
6. In rating system by modified Ryge criteria system on margin adaptation, there was statistically significant difference between amalgam and gold inlay. But on anatomic form and caries, there was no statistically significant difference among the material of restorations.
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