Comparative Evaluation of Microleakage in Class 2 Cavities Restored with A Nanohybrid Composite Using Three Different Increment Techniques- An in vitro Stereomicroscopic Study

2014 ◽  
Vol 8 (3) ◽  
pp. 143-147
Author(s):  
V Kumar ◽  
A Devi ◽  
R Bhargava
Keyword(s):  
Comparative Evaluation ◽  
Class Ii ◽  
Adhesive Systems ◽  
Incremental Placement ◽  
Permanent Molars ◽  
Nanohybrid Composite ◽  
Insertion Techniques ◽  
Level Of Significance ◽  
Placement Technique

ABSTRACT Context Purpose of the study was to compare the microleakage in class II cavities using Horizontal oblique increment (G1), Centripetal oblique increment (G2) and Oblique increment (G3), techniques Aims To determine ideal incremental placement technique in restoring class II cavity. Methods and Material Class II cavities were prepared in 45 extracted permanent molars. The teeth were restored with nanohybrid composite (Ceram X) and bonding with adhesive systems (Xeno V). Microleakage evaluated after thermocycling of the specimens. Statistical analysis used ANOVA test at the 0.05 level of significance. Results Mean microleakage score of group G1, G2 and G3 was 2.86 ± 1.43, 1.86 ± 1.65 and 2.46 ± 1.50 respectively. Conclusions None of the insertion techniques used in this study was able to prevent microleakage, though the lowest microleakage values were obtained when the centripetal oblique technique was used.

scholarly journals Effect of Four Different Placement Techniques on Marginal Microleakage in Class II Composite Restorations: An in vitro Study

2011 ◽  
Vol 2 (2) ◽  
pp. 111-116 ◽  
Author(s):  
Anupriya Bugalia ◽  
G Usha ◽  
J Karthik ◽  
Raghoothama Rao ◽  
B Vedhavathi
Keyword(s):  
Methylene Blue ◽  
In Vitro Study ◽  
Class Ii ◽  
Insertion Technique ◽  
Incremental Placement ◽  
Placement Technique ◽  
Better Than ◽  
Made In ◽  
Composite Restoration

ABSTRACT Background and objectives This study was undertaken to evaluate the effect of different placement techniques (bulk, oblique incremental, centripetal and split horizontal) on marginal microleakage in class II composite restoration. Method Standardized class II preparations were made in 40 caries-free extracted molars and randomly assigned to four groups (n = 10): (1) Bulk technique (2) oblique incremental insertion technique,(3) centripetal incremental insertion technique and (4) split horizontal incremental insertion. The teeth were restored with a total-etch adhesive and nanocomposite resin. The specimens were immersed in a solution of 2% methylene blue for 24 hours, and subsequently evaluated for leakage. The microleakage scores (0 to 4) obtained from the occlusal and cervical walls were analyzed with Kruskal-Wallis and Mann-Whitney tests (p < 0.05). Results Microleakage scores indicated that incremental technique was better than bulk for composite placement and among incremental techniques split incremental technique showed best results. Conclusion Incremental placement technique showed lower microleakage compared to bulk, and lower microleakage was seen at occlusal margin compared to gingival margin. Split horizontal incremental technique showed the least microleakage scores among incremental techniques

scholarly journals Effectiveness of an Infiltrant on sealing of Composite Restoration Margins with/without Artificial Caries

2014 ◽  
Vol 15 (6) ◽  
pp. 717-725 ◽  
Author(s):  
Sibel A Antonson ◽  
Ozlem Tulunoglu ◽  
Ibrahim Fevzi Tulunoglu ◽  
Marc Campillo-Funollet ◽  
Donald Antonson ◽  
...  
Keyword(s):  
Clinical Significance ◽  
Statistical Evaluation ◽  
Class Ii ◽  
Meaningful Difference ◽  
Rank Tests ◽  
Wilcoxon Sign Rank ◽  
Nanohybrid Composite ◽  
The Right ◽  
Composite Restoration

ABSTRACT Aim The aim of this in vitro study was to evaluate the effectiveness of a resin infiltrant (ICON) on marginal sealing ability of class II resin restorations with/without-caries. Materials and methods Forty-eight noncarious human premolar teeth were embedded and MO and DO preparations of standard dimensions were prepared. The left side of dentin margins of the cavities were left nonbonded (UB) while the right side were bonded using total etch-bonding agent and all restored with a Nanohybrid composite. The teeth were thermocycled and half of the specimens in the UB and B groups were subjected to an artificial caries process. ICON was applied to caries and noncaries subgroups following the manufacturer's directions. Impressions were made at each step: after the restorations were completed, thermocycling, artificial caries procedures, and infiltrant application and the silicone tag lengths were measured with a stereomicroscope. The specimens were immersed in 0.5% basic fuchsine at 37° C for 24 hours, sectioned and microleakage was evaluated with a stereomicroscope. Selected samples and their replicas were assessed for marginal quality under a stereomicroscope and SEM. Statistical evaluation of the data were made using Kruskal-Wallis, Mann-Whitney U and Wilcoxon Sign Rank tests. Results While bonding application did not create a meaningful difference, the thermocycling and artificial caries significantly increased the gap length and microleakage (p < 0.05). ICON application was decreased the microleakage, created gap-free margins and closed the gaps which were previously occurred at the same cavities (p < 0.05). Conclusion A resin infiltrant (ICON) application decreased the microleakage, created gap-free margins and closed the gaps, which previously occurred at the same cavities. Clinical significance Approximal application of resin infiltrant may increase the success of the class II composite restorations also reduced the risk of needing more complex restoration therapy. How to cite this article Tulunoglu O, Tulunoglu IF, Antonson SA, Campillo-Funollet M, Antonson D, Munoz-Viveros C. Effectiveness of an Infiltrant on Sealing of Composite Restoration Margins with/without Artificial Caries. J Contemp Dent Pract 2014;15(6): 717-725.

scholarly journals Comparative evaluation of marginal seal integrity of three bulk-fill composite materials in Class II cavities: An In vitro study

2018 ◽  
Vol 8 (3) ◽  
pp. 201
Author(s):  
DishaA Makwani ◽  
MeghaC Patel ◽  
RohanK Bhatt ◽  
LipeeD Dave ◽  
VijetaS Raj
Keyword(s):  
Composite Materials ◽  
Comparative Evaluation ◽  
In Vitro Study ◽  
Class Ii ◽  
Vitro Study ◽  
Seal Integrity

scholarly journals Microleakage study of three adhesive systems

2004 ◽  
Vol 15 (3) ◽  
pp. 194-198 ◽  
Author(s):  
Vanessa Gallego Arias ◽  
Inger Teixeira Campos ◽  
Luiz André Freire Pimenta
Keyword(s):  
Methylene Blue ◽  
Dwell Time ◽  
Composite Resin ◽  
In Vitro Study ◽  
Adhesive System ◽  
Class Ii ◽  
The Self ◽  
Adhesive Systems ◽  
Molar Teeth

The purpose of this in vitro study was to evaluate the efficacy of three hydrophilic dentin adhesive systems to reduce class II restoration microleakage. A total of 60 human molar teeth were used in which two box cavities were made on the distal and mesial surfaces, with a cervical margin in dentin. These cavities were randomly divided into 3 groups (n = 40 each), according to adhesive system tested: G1: OptiBond SOLO®; G2: Amalgambond Plus®; G3: Etch & Prime 3.0®. The cavities were restored with the composite resin Z-100®. The groups were thermocycled 2000 times (5 ± 1ºC and 55 ± 1ºC) with a dwell time of 1 min. The teeth were then immersed in 2% methylene blue, pH 7.0, for 4 h, sectioned and observed with a stereomicroscope MEIJI 2000 (35X). The evaluation was made using scores (0-4) and the results were expressed through the sum of the ranks. G1 = 1994.00; G2 = 2294.00; G3 = 2972.00. The three groups were significantly different. The self-etching adhesive system Etch & Prime 3.0 was less effective in preventing microleakage. The OptiBond SOLO adhesive was the most effective in reducing microleakage in dentin margins when compared with Amalgambond Plus and Etch & Prime 3.0.

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