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Resin composite repair: Quantitative microleakage evaluation of resin-resin and resin-tooth interfaces with different surface treatments.

Celik C, Cehreli SB, Arhun N - Eur J Dent (2015 Jan-Mar)

Bottom Line: The type of initial repaired restorative material did not affect the microleakage.Pre-existing composite type does not affect the microleakage issue.All-in-one adhesive resin (BeautiBond) may not be preferred in resin composite repair in terms of microleakage prevention.

View Article: PubMed Central - PubMed

Affiliation: Department of Restorative Dentistry, Faculty of Dentistry, Baskent University, Bahcelievler, Ankara, Turkiye.

ABSTRACT

Objective: The aim was to evaluate the effect of different adhesive systems and surface treatments on the integrity of resin-resin and resin-tooth interfaces after partial removal of preexisting resin composites using quantitative image analysis for microleakage testing protocol.

Materials and methods: A total of 80 human molar teeth were restored with either of the resin composites (Filtek Z250/GrandioSO) occlusally. The teeth were thermocycled (1000×). Mesial and distal 1/3 parts of the restorations were removed out leaving only middle part. One side of the cavity was finished with course diamond bur and the other was air-abraded with 50 μm Al2O3. They were randomly divided into four groups (n = 10) to receive: Group 1: Adper Single Bond 2; Group 2: All Bond 3; Group 3: ClearfilSE; Group 4: BeautiBond, before being repaired with the same resin composite (Filtek Z250). The specimens were re-thermocycled (1000×), sealed with nail varnish, stained with 0.5% basic fuchsin, sectioned mesiodistally and photographed digitally. The extent of dye penetration was measured by image analysis software (ImageJ) for both bur-finished and air-abraded surfaces at resin-tooth and resin-resin interfaces. The data were analyzed statistically.

Results: BeautiBond exhibited the most microleakage at every site. Irrespective of adhesive and initial composite type, air-abrasion showed less microleakage except for BeautiBond. The type of initial repaired restorative material did not affect the microleakage. BeautiBond adhesive may not be preferred in resin composite repair in terms of microleakage prevention.

Conclusions: Surface treatment with air-abrasion produced the lowest microleakage scores, independent of the adhesive systems and the pre-existing resin composite type. Pre-existing composite type does not affect the microleakage issue. All-in-one adhesive resin (BeautiBond) may not be preferred in resin composite repair in terms of microleakage prevention.

No MeSH data available.


Shematic representation of test protocol of the present study
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Figure 1: Shematic representation of test protocol of the present study

Mentions: This study was approved by Baskent University Institutional Review Board (Project no: D-DA14/05) and supported by Baskent University Research Found. Eighty caries free and intact, anonymized human molars were collected and stored in distilled water. Test protocol of the study is schematically presented in Figure 1. Teeth were cleaned and polished with pumice and rubber cups for 10 s. Occlusal cavities were prepared on each tooth by a high-speed handpiece under water-cooling. A new bur (835R-012-4 ML, Diatech, Coltene/Whaledent AG, Switzerland) was used for every 5 teeth. The bucco-lingual width of the cavities was one-third of the intercuspal width, and the cavity depth was 3 mm. The cavities were restored with either of the universal resin composite after application of a two-step etchandrinse adhesive system (Adper Single Bond 2): A. Grandio SO (Shade: A3) (Voco GmbH, Cuxhaven, Germany), or B. Filtek Z250 (Shade: D3) (3M ESPE, Seefeld, Germany). Resin composite was placed with incremental technique (2 mm-thick layers), adapted to the cavity walls with a flat faced or elliptical condenser and light cured using a halogen light of 500 mW/mm2 intensity (Hi-Lux Ultra, Benlioglu, Turkey).


Resin composite repair: Quantitative microleakage evaluation of resin-resin and resin-tooth interfaces with different surface treatments.

Celik C, Cehreli SB, Arhun N - Eur J Dent (2015 Jan-Mar)

Shematic representation of test protocol of the present study
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4319307&req=5

Figure 1: Shematic representation of test protocol of the present study
Mentions: This study was approved by Baskent University Institutional Review Board (Project no: D-DA14/05) and supported by Baskent University Research Found. Eighty caries free and intact, anonymized human molars were collected and stored in distilled water. Test protocol of the study is schematically presented in Figure 1. Teeth were cleaned and polished with pumice and rubber cups for 10 s. Occlusal cavities were prepared on each tooth by a high-speed handpiece under water-cooling. A new bur (835R-012-4 ML, Diatech, Coltene/Whaledent AG, Switzerland) was used for every 5 teeth. The bucco-lingual width of the cavities was one-third of the intercuspal width, and the cavity depth was 3 mm. The cavities were restored with either of the universal resin composite after application of a two-step etchandrinse adhesive system (Adper Single Bond 2): A. Grandio SO (Shade: A3) (Voco GmbH, Cuxhaven, Germany), or B. Filtek Z250 (Shade: D3) (3M ESPE, Seefeld, Germany). Resin composite was placed with incremental technique (2 mm-thick layers), adapted to the cavity walls with a flat faced or elliptical condenser and light cured using a halogen light of 500 mW/mm2 intensity (Hi-Lux Ultra, Benlioglu, Turkey).

Bottom Line: The type of initial repaired restorative material did not affect the microleakage.Pre-existing composite type does not affect the microleakage issue.All-in-one adhesive resin (BeautiBond) may not be preferred in resin composite repair in terms of microleakage prevention.

View Article: PubMed Central - PubMed

Affiliation: Department of Restorative Dentistry, Faculty of Dentistry, Baskent University, Bahcelievler, Ankara, Turkiye.

ABSTRACT

Objective: The aim was to evaluate the effect of different adhesive systems and surface treatments on the integrity of resin-resin and resin-tooth interfaces after partial removal of preexisting resin composites using quantitative image analysis for microleakage testing protocol.

Materials and methods: A total of 80 human molar teeth were restored with either of the resin composites (Filtek Z250/GrandioSO) occlusally. The teeth were thermocycled (1000×). Mesial and distal 1/3 parts of the restorations were removed out leaving only middle part. One side of the cavity was finished with course diamond bur and the other was air-abraded with 50 μm Al2O3. They were randomly divided into four groups (n = 10) to receive: Group 1: Adper Single Bond 2; Group 2: All Bond 3; Group 3: ClearfilSE; Group 4: BeautiBond, before being repaired with the same resin composite (Filtek Z250). The specimens were re-thermocycled (1000×), sealed with nail varnish, stained with 0.5% basic fuchsin, sectioned mesiodistally and photographed digitally. The extent of dye penetration was measured by image analysis software (ImageJ) for both bur-finished and air-abraded surfaces at resin-tooth and resin-resin interfaces. The data were analyzed statistically.

Results: BeautiBond exhibited the most microleakage at every site. Irrespective of adhesive and initial composite type, air-abrasion showed less microleakage except for BeautiBond. The type of initial repaired restorative material did not affect the microleakage. BeautiBond adhesive may not be preferred in resin composite repair in terms of microleakage prevention.

Conclusions: Surface treatment with air-abrasion produced the lowest microleakage scores, independent of the adhesive systems and the pre-existing resin composite type. Pre-existing composite type does not affect the microleakage issue. All-in-one adhesive resin (BeautiBond) may not be preferred in resin composite repair in terms of microleakage prevention.

No MeSH data available.