PERBEDAAN KEBOCORAN MIKRO ANTARA TEKNIK BULK DAN TEKNIK INKREMENTAL PADA RESTORASI GIGI POSTERIOR DENGAN RESIN KOMPOSIT BULKFILL VISKOSITAS TINGGI PADA KAVITAS KELAS I
| Main Authors: | , SELLY AMELIA, , drg. Christnawati, M.Kes., Sp.Ort.(K) |
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| Format: | Thesis NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Universitas Gadjah Mada
, 2014
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/130977/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=71411 |
Daftar Isi:
- Microleakage is the most common problem that occurs in resin composite restoration that can�t be resolved and might lead to the failure of restoration on deep and wide cavities. There are some suggested ways to reduce the risk of microleakage, which by incremental placement technique and the use of new generation resin composite such as bulkfill resin composite. The objective of this study is to evaluate the microleakage betwen two different placement techniques ( incremental oblique technique and bulkfilling technique) in Class I cavities of posterior tooth restoration filled with high viscosity bulkfill resin composite. A total of 32 extracted maxillary human premolars were prepared with Class I Cavities (4 mm depth, 3 mm diameters). Prepared teeth were divided into two groups according to the following specifications: in the first group, the resin composite was placed with oblique incremental technique, and in the second group, resin composite was placed with bulkfilling technique. All of the specimens were filled up with high viscosity bulkfill resin composite (Tetric N Ceram, Ivoclar Vivadent) and bonded with total etch bonding system ( Te Econom Bond, Ivoclar Vivadent). After the specimens were stored in 37� artificial saliva for 24 hours, all specimens were examined to discover the microleakage using immersion in methylene blue 2% as a marker for 24 hours. Afterward, dye penetration were observed under a stereomicroscope (Digital Blue QX5). Relative leakage was recorded according to the extent of dye penetration on a scale of 0 to 3, with 0 indicates that there is no dye penetration and 3 indicates that dye penetration had progressed deeper than the cavity floor angle. The results were analyzed by employing Mann Whitney Test (non-parametric analysis). Mann Whitney test shows that there is no significant difference of microleakage between two treatment groups (p>0.05). This indicates that the use of bulkfilling technique and incremental oblique technique with high viscosity bulkfill resin composite does not significantly reduce microleakage score, and microleakage still occurs in both groups. Keywords : bulkfilling technique, incremental placement, class I cavity, microleakage, bulkfill resin composite