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

Bugalia, Anupriya; Usha, G; Karthik, J.; Rao, R Nageswar; Vedhavathi, B

doi:10.5005/jp-journals-10015-1066

Cited by 17 publications

(9 citation statements)

References 9 publications

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“…In another study, it was reported that the nanofillers in the adhesive systems were filtered by the collagen mesh and held on the surface of the hybrid layer, thus behaving like a stressabsorbing intermediate layer (17)(18)(19). Although it was very similar to this study, Nadig et al (11) observed higher microleakage scores on both sides of the cavity, especially more at the gingival margin. The only difference between the preferred adhesive systems was the absence of silica nanofillers in the previous study.…”

Section: Discussionsupporting

confidence: 88%

“…However, an oblique layering method has been developed which allows the transfer of shrinkage stresses to unbound free surfaces (9) by determining that the most important effect of the cavity geometry during polymerization is the configuration factor (10). Thereafter, different methods, such as centripetal and split horizontal incremental techniques applied in Class II cavities, were developed with the same principles (11).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of marginal microleakage in composite restorations with different placement techniques

Misilli

Yılmaz

2018

Int Dent Res

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Aim: The purpose of this in vitro study was to evaluate the effect of different layering techniques (bulk, oblique, centripetal, split horizontal) on the marginal microleakage of Class II adhesive restorations. Methodology: Forty-eight standardised Class II cavities were prepared on both mesial and distal sides of extracted non-carious human molar teeth. Following preparation, all specimens were randomly divided into four groups (n=12). Group 1: bulk technique; Group 2: oblique incremental technique; Group 3: centripetal incremental technique; Group 4: split horizontal incremental technique. The teeth were restored with a total-etch adhesive system and a microhybrid composite resin. After thermocycling and immersion in a 0.2% methylene blue solution for 24 hours, the restorations were sectioned, and dye penetration was evaluated under a stereomicroscope. The microleakage scores (0 to 4) obtained from the occlusal and gingival margins were analysed with Kruskal-Wallis and Mann-Whitney U tests (p<0,05). Results: Incremental placement techniques showed lower microleakage compared with bulk and lower microleakage was seen at occlusal margin compared with gingival margin. However, there were no statistically significant differences among four placement techniques and the margins (p>0,05). Conclusion: Based on the results of the present study, none of the four placement techniques were found to be effective in eliminating marginal microleakage entirely in Class II restorations. All of the placement techniques showed similar results when the cavity margins were located on the enamel.

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Section: Discussionsupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Evaluation of marginal microleakage in composite restorations with different placement techniques

Misilli

Yılmaz

2018

Int Dent Res

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“…Comparisons of the horizontal and the oblique technique does not show such a coherent result. Studies of some authors demonstrate no significant difference [26,27], whereas other researchers suggest the use of the oblique technique [10].…”

Section: Discussionmentioning

confidence: 97%

Comparison of Composite Restoration Techniques

Katona¹,

Barrak²

2016

: Interdiscip. Descr. Complex Syst.

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This article briefly presents the classification, and possible ways of application of composites. Our objective was to compare three different restoration technique in class II cavity preparations, with the aim to determine which technique is the most advantageous in practical point of view. Artificial teeth fabricated from self-curing acrylic resin were used as models. Comparison of marginal sealing was performed macroscopically via direct visual inspection and via tactile control. Two parameters were examined on esthetic evaluation, which were the anatomical shape and the optical appearance. The time required to prepare the restorations were also measured. After the evaluation of the results, the bulk-fill technique was demonstrated to require the shortest time to be performed. This was followed by the oblique (Z) technique, whereas the horizontal incremental technique appeared to be the most time-consuming method. Based on the esthetic evaluation, a remarkable difference can be observed between the bulk-fill technique and the other two incremental techniques, while the mean scores for the oblique and the horizontal techniques were comparable. Based on the results of the visual inspection and instrumental examination, there were no differences in terms of marginal sealing between the three applied methods. Based on these, the use of the appropriate incremental technique can reduce the development of secondary caries and increasing the longevity of composite restorations.

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“…Teknik penumpatan yang dapat mengurangi nilai c-factor adalah teknik incremental yang merupakan teknik penumpatan resin komposit secara bertahap. 4 Berdasarkan penelitian Roppa dkk., 9 teknik incremental menghasilkan kebocoran mikro yang lebih kecil dibandingkan penumpatan secara sekaligus (bulk) pada resin komposit konvensional. …”

Section: Pendahuluanunclassified

“…21,22 Semakin kecil polymerization shrinkage stress yang terbentuk semakin kecil kebocoran mikro yang terjadi. 9,24 Kebocoran mikro pada resin komposit bulk- ll juga dapat dipengaruhi oleh teknik kondensasi selama penumpatan. 26 Pada penelitian ini penulis tidak mengendalikan tekanan kondensasi sehingga tekanan yang diberikan pada tiap-tiap sampel berbeda, selain itu polymerization srinkage stress seharusnya dapat diukur besaran nilainya menggunakan alat tensiometer.…”

Section: Pembahasanunclassified

Perbandingan tingkat kebocoran mikro resin komposit bulk-filldengan teknik penumpatan oblique incremental dan bulk

Permana

Sujatmiko

Yulianti³

2016

Majalah Kedokteran Gigi Indonesia

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ABSTRAKResin komposit bulk- ll adalah resin komposit yang dirancang untuk mempercepat proses aplikasi resin komposit. Konsep bulk- ll memungkinkan resin komposit ditumpat sekaligus 4 mm dan mengalami pengerutan polimerisasi minimal. Penelitian ini bertujuan mengetahui efek teknik penumpatan (oblique incremental/bulk) pada tingkat kebocoran mikro resin komposit bulk- ll. Sampel berjumlah 32 gigi premolar rahang atas disimpan di dalam aquades, dipreparasi kavitas kelas I berbentuk persegi, kedalaman kavitas 4 mm (3 x 3 x 4). Sampel dibagi dalam dua kelompok, kelompok 1 restorasi teknik oblique incremental dan kelompok 2 teknik bulk. Sampel kemudian disimpan di dalam inkubator pada suhu 37 °C selama 24 jam, kemudian dilakukan prosedur thermocycling manual 100 putaran pada suhu 5 °C dan 55 °C. Kebocoran mikro diukur menggunakan digital microscope pembesaran 100 x dalam satuan milimeter menggunakan penggaris mikrometer mikroskop dengan ketelitian 0,1 mm setelah sampel direndam dalam larutan methylene blue 0,3% selama 24 jam dan dipotong pada pertengahan restorasi menggunakan separating disc. Hasil pengukuran tingkat kebocoran mikro menunjukkan pada kelompok 1 nilai kebocoran mikro yang terjadi berkisar 1,0 mm -2,7 mm dengan rata-rata 1,625 mm, pada kelompok 2 kebocoran mikro yang terjadi berkisar 3,6 mm -4,0 mm dengan rata-rata 3,763 mm. Data di analisis menggunakan uji T-test. Hasil analisis menunjukkan terdapat perbedaan yang signi kan antara kedua kelompok (p < 0,05). Kesimpulan penelitian ini adalah restorasi resin komposit bulk- ll pada kavitas kelas I dengan teknik oblique incremental menghasilkan tingkat kebocoran mikro yang lebih kecil dibandingkan dengan teknik bulk. The concept of bulk- ll composite allows composite to  ll at a depth of 4 mm and minimizes polymerization shrinkage. This study aims to determine the comparison of placement techniques (oblique incremental/bulk) of bulk- ll composite on microleakage in class I preparations. Thirty two human maxillary premolar were stored in distilled water, then Class I preparations were made with the depth of the cavity which was 4 mm (3 x 3 x 4). The teeth were randomly divided into two groups, group 1 uses oblique incremental PENDAHULUANResin komposit merupakan bahan restorasi yang paling banyak digunakan dalam bidang kedokteran gigi saat ini. Resin komposit terdiri atas tiga komponen utama, yaitu matriks,  ller, dan coupling agent, serta memiliki keunggulan yaitu warna yang menyerupai warna gigi asli, memiliki nilai estetis yang baik dan biokompatibilitas yang tinggi. Kekurangan dari resin komposit yaitu adanya pengerutan pada saat polimerisasi (polymerization shrinkage).

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

Cited by 17 publications

References 9 publications

Evaluation of marginal microleakage in composite restorations with different placement techniques

Evaluation of marginal microleakage in composite restorations with different placement techniques

Comparison of Composite Restoration Techniques

Perbandingan tingkat kebocoran mikro resin komposit bulk-filldengan teknik penumpatan oblique incremental dan bulk

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