scholarly journals Estimation of the Gingival microleakage of Two Composite Resins with Three Insertion Techniques for Class V Restorations (In-Vitro Comparative Study)

2019 ◽  
Vol 6 (2) ◽  
pp. 15-21
Author(s):  
Ubaydah F. AL-Gailani ◽  
◽  
Salam D. Alqaysi ◽  
Keyword(s):  
Comparative Study ◽  
Composite Resins ◽  
Class V ◽  
Insertion Techniques

scholarly journals Effect of thermal cycling and filling technique on leakage of composite resin restorations

2004 ◽  
Vol 12 (4) ◽  
pp. 307-311 ◽  
Author(s):  
Silvia Kenshima ◽  
Rosa Helena Miranda Grande ◽  
Julio da Motta Singer ◽  
Rafael Yagüe Ballester
Keyword(s):  
Thermal Cycling ◽  
Silver Nitrate ◽  
Composite Resin ◽  
Composite Resins ◽  
Fluorescent Light ◽  
Single Bond ◽  
Class V ◽  
Composite Resin Restorations ◽  
Nail Varnish

The objective of this study was to evaluate in vitro the effect on leakage of two incremental filling techniques and two composite resins with different elastic modulus and similar polymerization shrinkage. Eighty Class V cavities (4x4x2mm) were prepared in bovine incisors and were randomly restored with Z-250 (Z) or Durafill VS (D) + Single Bond in axial (a) or oblique (o) increments. The restorations were divided into two groups: Not Aged - N (4-hour-storage in water at 37ºC) and Aged - A (1-week storage in water at 37ºC + 1000 x - 5º-55ºC / 1-min dwell time). The specimens were covered with 2 coats of nail varnish so that only the restoration margins were exposed to silver nitrate 50% (2h) and developed under fluorescent light (8h). After they were sectioned twice in buccal-lingual direction, the four exposed surfaces were digitized (Vidcap) and the silver nitrate penetration was measured (ImageLab) at the incisal and gingival walls. Data were analyzed by a 3-way ANOVA (Resin, Filling Technique and Aging) separately for incisal and gingival walls (alpha=0.05). Resin and Aging were statistically significant either for the incisal and the gingival walls. The microfill composite resin infiltrated more than the hybrid composite. The thermal cycling caused an overall increase in silver nitrate penetration. The filling technique affected leakage depending on the composite resin and aging regimen.

Comparative study in vitro of microleakage in class V cavity preparation with and without Er:YAG laser

2000 ◽  
Author(s):  
Rosane F. Z. Lizarelli ◽  
Cristina Kurachi ◽  
Sizenando P. Neto ◽  
Vanderlei S. Bagnato
Keyword(s):  
Comparative Study ◽  
Er:Yag Laser ◽  
Cavity Preparation ◽  
Class V

scholarly journals Comparative study between laser and conventional techniques for class V cavity preparation in gamma-irradiated teeth (in vitro study)

2017 ◽  
Vol 25 (6) ◽  
pp. 657-665 ◽  
Author(s):  
Amr H. M. Rasmy ◽  
Tarek A. Harhash ◽  
Rami M. S. Ghali ◽  
Eman M. F. El Maghraby ◽  
Dalia H. El Rouby
Keyword(s):  
Comparative Study ◽  
In Vitro Study ◽  
Vitro Study ◽  
Cavity Preparation ◽  
Class V ◽  
Gamma Irradiated

scholarly journals Investigation of microleakage of polymerized with LED and halogen light devices four different restorative materials

2020 ◽  
Vol 10 (3) ◽  
pp. 73-79
Author(s):  
Ayşe Günay ◽  
Emin Caner Tümen
Keyword(s):  
Pediatric Dentistry ◽  
Composite Resins ◽  
Primary Molar ◽  
Class V ◽  
Led Light ◽  
Halogen Light ◽  
Restorative Materials ◽  
Native Speakers Of English ◽  
In Vitro Effects

Aim: This study aimed to evaluate the in vitro effects on microleakage of LED and halogen light devices used in the polymerization of monomer structure composite resins of different viscosities and inorganic filling particle size applied to standard class V cavities in primary teeth. Methodology: 80 non caries primary molar teeth with standard class v cavity on the buccal surfaces were used. The teeth were randomly divided into 4 main groups and restored with composite resins (Herculite® XRV, Ultra™, Filtek™ Silorane, Vertise™ Flow, Æliteflo™). Each group was divided into 2 sub-groups for polymerization with LED or halogen light devices. Following the thermal cycle and subsequent procedures, the dye penetration method was used to evaluate microleakage. The microleakage scores were evaluated using the Kruskal-Wallis and Mann-Whitney U-tests. Results: According to the results of the statistical analysis, in polymerization made with halogen and LED light devices at the occlusal edge, the microleakage scores from lowest to highest were as follows: Filtek™ Silorane < Herculite® XRV Ultra™ < Æliteflo™ < Vertise™ Flow. In polymerization made with halogen and LED light devices at the gingival edge, the microleakage scores from lowest to highest were as follows: Filtek™ Silorane < Herculite® XRV Ultr™ < Vertise™ Flow < Æliteflo™. Conclusion: In the polymerizations made by using LED and halogen light devices, Herculite® XRV Ultra™, was found to be successful as it showed similar values to Filtek™ Silorane, which gave the best results in terms of microleakage. Moreover, as we have reached similar findings in our thesis study in respect of microleakage, in cases indicating the use of flow composite resin materials such as Æliteflo™, Vertise™ Flow can be used as it has the advantage of ease application and thus provide an ideal alternative in pediatric dentistry.   How to cite this article: Günay A, Tümen EC. Investigation of microleakage of polymerized with LED and halogen light devices four different restorative materials. Int Dent Res 2020;10(3):73-9. https://doi.org/10.5577/intdentres.2020.vol10.no3.2   Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

scholarly journals An In Vitro Comparative Evaluation of the Effects of Different Bleaching Agents on Marginal Integrity of Two Different Restorative Resin Materials: An Analysis by Confocal Laser Microscopy

2019 ◽  
Vol 07 (03) ◽  
pp. 114-122
Author(s):  
Nitesh Goyal ◽  
Yogesh Kumar ◽  
Neetu Jindal ◽  
Renu Aggarwal
Keyword(s):  
Laser Scanning ◽  
Composite Resin ◽  
Root Surface ◽  
Composite Resins ◽  
Tooth Bleaching ◽  
Confocal Laser ◽  
Control Group ◽  
Class V ◽  
Nanohybrid Composite

Abstract Introduction In our society, with the advances in cosmetic consciousness, well-aligned, properly contoured, white and clean teeth are a symbol of health and standard of beauty. Thus, tooth bleaching has become popular cosmetic therapy among patients and dentists. Microleakage is a major challenge to the success rate for all type of restorations. Materials and Methods Eighty maxillary human molars were collected and evaluated and Class V cavities 5×3×2 mm size were prepared with straight carbide bur (SS White) on the buccal and palatal surfaces at the cementoenamel junction of all the samples, so that the upper margin would be in enamel and lower margins on root surface. In total, 160 class V cavities were prepared on maxillary molars. Then samples were randomly divided into 3 groups (microfilled and nanohybrid composite resins and control group) and 3 subgroups (Pola Office, Whiteness HP Blue, Whiteness Perfect) according to the type of composite resins and bleaching agents used. After application of bleaching agents, all samples were immersed in a contrast solution of rhodamine B fluorescent dye for 24 hours. Then using a diamond disc samples were sectioned buccolingually through the center of the restorations and sectioned teeth were evaluated for marginal microleakage under confocal laser scanning microscope to check the extent of dye penetration. Results When all composite resin groups were compared with all the bleaching agents, at occlusal and gingival levels, lowest marginal leakage scores were obtained with the microfilled composite resin bleached with Whiteness HP blue, and in nanohybrid composite lowest microleakage score were obtained with Pola office bleach at both levels.

An In Vitro Comparative Study on Marginal Integrities of FiltekTM P90 and P60 Composite Resins as Class I Fillings

2019 ◽  
Vol 11 (7) ◽  
pp. 994-1000
Author(s):  
Yao Zhang ◽  
Yu Cao ◽  
Chang Liu ◽  
Dengsheng Xia ◽  
Ling Wan ◽  
...  
Keyword(s):  
Comparative Study ◽  
Composite Resins ◽  
Class I

scholarly journals Effect of Two Light-emitting Diode (LED) and One Halogen Curing Light on the Microleakage of Class V Flowable Composite Restorations

2007 ◽  
Vol 8 (2) ◽  
pp. 80-88 ◽  
Author(s):  
Yonca Korkmaz ◽  
Nuray Attar
Keyword(s):  
Light Emitting Diode ◽  
Composite Resins ◽  
Class V ◽  
Polymerization Shrinkage ◽  
Light Emitting ◽  
Flowable Composite ◽  
Composite Restorations ◽  
Curing Methods ◽  
Curing Light

Abstract Aim The disadvantages of light cured composite resin materials with respect to microleakage are predominantly a result of polymerization shrinkage upon curing. It has been shown curing methods play a significant role in polymerization shrinkage of light-cured composite resins. The purpose of this study was to investigate the effect of light-emitting diode (LED) light curing units (LCUs) compared with a halogen LCU on microleakage of three different flowable composites using self-etch adhesives. Methods and Materials A total of 63 extracted human premolars were prepared with standardized Class V cavity preparations on the buccal and lingual surfaces of each tooth. The occusal margin of the cavities was located on the enamel and the gingival margin was on dentin. Teeth were randomly assigned to three groups of 21 teeth each as follows: Group 1: Adper Prompt L-Pop + Filtek Flow (3M ESPE); Group 2: AdheSE + Tetric Flow (Ivoclar, Vivadent); and Group 3: Clearfil Protect Bond + Clearfil Protect Liner F (Kuraray Medical Inc.). All the groups were subdivided into three groups according to the curing lights used (n=7). Two LED LCUs, Elipar FreeLight and Elipar FreeLight 2 (3M ESPE), and one halogen-based LCU, Hilux Expert (Benlioglu), were used. All teeth were then immersed in 0.5% basic fuchsin dye solution for 24 hours after thermocycling (500 cycles; between 5°C to 55°C). The teeth then were longitudinally sectioned and observed under a stereomicroscope (40X magnification) by two examiners. The degree of dye penetration was recorded separately for enamel and dentin. Data were analyzed with the Kruskal-Wallis and Mann-Whitney tests with the Bonferroni correction. Results No statistically significant differences in microleakage were observed between groups either on enamel or dentin (p>0.05). Conclusion With the limitation of this in vitro study, the differences in microleakage between LCUs used were not statistically significantly different. Elipar Free Light 2 reduces curing time which can be considered as an advantage. Citation Attar N, Korkmaz Y. Effect of Two Light-emitting Diode (LED) and One Halogen Curing Light on the Microleakage of Class V Flowable Composite Restorations. J Contemp Dent Pract 2007 February;(8)2:080-088.

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