Comparative Evaluation of the Effects of Light Intensities and Curing Cycles of QTH, and LED Lights on Microleakage of Class V Composite Restorations

Chandurkar, Anshu; Metgud, Sandeep; Yakub, Shaikh Shoeb; Kalburge, Vaishali; Biradar, Basawaraj

doi:10.7860/jcdr/2014/7463.4167

Cited by 3 publications

(2 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, no differences were observed in gap formation with the use of composite resins polymerized in a similar manner with the use of different types of light-curing units, which coincides with the results of some previous studies. 42 , 43 Similarly, Lee et al 44 showed that the amount of polymerization shrinkage is a factor of the type and composition of composite resin, rather than the type of light-curing unit.…”

Section: Discussionmentioning

confidence: 99%

Factors affecting marginal integrity of class II bulk-fill composite resin restorations

Oskoee

Bahari

Navimipour

et al. 2017

J Dent Res Dent Clin Dent Prospects

View full text Add to dashboard Cite

Background. Bulk-fill composite resins are a new type of resin-based composite resins, claimed to have the capacity to be placed in thick layers, up to 4 mm. This study was carried out to evaluate factors affecting gap formation in Cl II cavities restored using the bulk-fill technique. Methods. A total of 60 third molars were used in this study. Two Cl II cavities were prepared in each tooth, one on the mesial aspect 1 mm coronal to the CEJ and one on the distal aspect 1 mm apical to the CEJ. The teeth were divided into 4 groups: A: The cavities were restored using the bulk-fill technique with Filtek P90 composite resin and its adhesive system and light-cured with quartz tungsten halogen (QTH) light-curing unit. B: The cavities were restored similar to that in group A but light-cured with an LED light-curing unit. C: The cavities were restored using the bulk-fill technique with X-tra Fil composite resin and Clearfil SE Bond adhesive system and light-cured with a QTH curing unit. D: The cavities were restored similar to that in group C but light-cured with an LED light-curing unit. The gaps were examined under a stereomicroscope at ×60. Data were analyzed with General Linear Model test. In cases of statistical significance (P<0.05), post hoc Bonferroni test was used for further analyses. Results. The light-curing unit type had no effect on gap formation. However, the results were significant in relation to the composite resin type and margin location (P<0.001). The cumulative effects of light-curing unit*gingival margin and light-curing unit*composite resin type were not significant; however, the cumulative effect of composite rein type*gingival margin was significant (P=0.04) Conclusion. X-tra Fil composite exhibited smaller gaps compared with Filtek P90 composite with both light-curing units. Both composite resins exhibited smaller gaps at enamel margins.

show abstract

Section: Discussionmentioning

confidence: 99%

Factors affecting marginal integrity of class II bulk-fill composite resin restorations

Oskoee

Bahari

Navimipour

et al. 2017

J Dent Res Dent Clin Dent Prospects

View full text Add to dashboard Cite

show abstract

“…The most microleakage was detected in the Quartz-Tungsten-Halogen (QTH) light device group used in standard mode. There was no statistically significant difference between the soft-start and standard modes of the LED and QTH groups 31 .…”

Section: Discussionmentioning

confidence: 73%

Microleakage evaluation of photopolymerization efficiency in different layering methods of new generation LED light devices

Yücel¹,

Alkan²,

Tağtekin³

et al. 2023

Balkan J Dent Med

View full text Add to dashboard Cite

Background/Aim: The aim of this study was to examine the microleakage values after restoring the prepared Class II box cavities using two different composite resins with three different layering methods and polymerizing them with five different LED light devices. Material and Methods: Class II box cavities were prepared in 150 extracted mandibular molars. Nanoceramic composite resin (Ceram.x SphereTEC one universal A2, Dentsply, Germany) and bulk fill composite resin (SDR flow+ A2, Dentsply, Germany) were used for the restoration of the cavities. Teeth were restored with three different layering methods (bulk fill, horizontal layering, and centripetal buildup technique) and five different LED light devices [(Smartlite Focus, Dentsply, USA), (Led.E, Woodpecker, China), (Valo Cordless, Ultradent, USA), (Bluephase N, Ivoclar Vivadent, Liechtenstein), (D-Light Pro (GC, USA)] and then subjected to microleakage analysis. Kruskal Wallis and Mann Whitney U test were used for statistical analysis. Th e data was evaluated under p<0.005 significant level. Results: Using different layering methods did not affect microleakage scores statistically (p=0.7683). Applying bulk-fill composite resin with 2 mm horizontal layers or using the centripetal buildup technique did not show significant differences in microleakage. Second- and third-generation light devices demonstrated no statistical difference in microleakage (p=0.9075). Conclusions: Using different layering methods and different curing units did not make any difference in microleakage.

show abstract

Evaluation of the microleakage in class II cavities restored with composite resin by using different placement techniques and light cure units– An in vitro study

Miskin

Manduru²,

Sampathi³

et al. 2022

IDJSR

View full text Add to dashboard Cite

The aim of the present study is to evaluatepost thermocycling microleakage scores in class II cavities restored with Tetetric n ceram (TC) by, Bulk fill technique, Incremental technique, Centripetal techniques, followed by polymerization light source QTH and LED.ethodsClass II Conventional Mesioocclusal (MO) cavities were prepared with occlusal gingival depth 1mm above the CEJ. The final preparation has the following dimensions, 3 mm – buccolingual extension1.5 mm –axial dept hand 4 mm –occluso-cervical extension. The samples will be etched and rinsed, and then the universal matrix will be placed after that the bonding agent will be applied and curedLater all specimens were randomly divided into three groups, each containing 20 teeth.GROUP I-Bulk Technique, GROUPII- Incremental Technique with oblique laying GROUP III-Specimens were stored in distilled water at 37C till it is subjected to thermocycling. Sthermo cycled for 500 cycles at with temperature range of 5 to 55 degrees with 20 seconds dwell time. Specimens were sectioned along the long axis in the mesiodistal direction of the restoration with a diamond disc and analyzed using a stereo microscope at 10x magnification by an independent examiner who was blinded by the groups.Comparison of three groups with microleakage scores at gingival margins by Kruskal Wallis one-way ANOVA test. Pair-wise comparison of all groups with respect to microleakage scores at gingival margins by Mann-Whitney U test. Statistical analysis was performed using SPSS STATISTICS 21.0 software.Among the three experimental groups least microleakage was seen with subgroup IIA (IN-QTH) followed by subgroup IIIA (CE-QTH) followed by subgroup IA (B-QTH).Among all these groups and subgroups, the least microleakage is seen in IN-LED (subgroup IIB), highest microleakage is seen in B-QTH (subgroup IA), interestingly there is no statistical difference between IN-QTH (subgroup IIA) and CE-LED (sub group IIIB).

show abstract

Comparative Evaluation of the Effects of Light Intensities and Curing Cycles of QTH, and LED Lights on Microleakage of Class V Composite Restorations

Abstract: It was thus concluded that the soft start polymerization showed a highly significant difference as compared to the standard curing modes of QTH and LED lights, respectively.

Cited by 3 publications

References 18 publications

Factors affecting marginal integrity of class II bulk-fill composite resin restorations

Factors affecting marginal integrity of class II bulk-fill composite resin restorations

Microleakage evaluation of photopolymerization efficiency in different layering methods of new generation LED light devices

Evaluation of the microleakage in class II cavities restored with composite resin by using different placement techniques and light cure units– An in vitro study

Contact Info

Product

Resources

About