Background: The ideal restoration material should have endurance, compatible with tooth structure and visible surrounding tissues and must be able to restore the lost tissue. There are various restoration materials such as Compomer and Bioactive Composite Resin. Microleakage is one of the failure in surface sealent, and this may increase the risk of secondary caries. Purpose: The aim of this study was to prove and compare the differences of microleakage between Compomer and Bioactive Composite Resin in class I restoration. Material and Method: Maxilla’s first premolar teeth with class I cavities (diameter: 3mm, depth: 3mm) divided into two groups with 10 samples each group. Group I: Compomer (Dentsply), Group II: Bioactive Composite Resin (Activa Pulpdent USA). All group were immersed in 1% methylene blue solution for 24 hours, rinsed in running water, and section mesial-distal using carborundum disc. Afterward, section were assessed for dye penetration that represent the mickroleakage using scoring method under digital microscope. Finally data were collected and statistically analyzed. Result: There were significant differences between each group (p<0.05). Microleakage in restoration with Bioactive Composite Resin (1.7) shows smaller values than Compomer restoration (4.4). Conclusion: This research show that there is differentiation of microleakage between Compomer and Bioactive Composite Resin. In Bioactive Composite Resin found the smallest microleakage.

Introduction. Factors that cause failure of endodontic therapy include incomplete cleaning and shaping of root canals and unhermetic obturation. Endodontic failure can lead to periapical lesions. Apicoectomy is one of endodontic surgery treatment choice to preserving the tooth with endodontic treatment failure. Aim. The aim of this report was to show that in cases of failure of root canal treatment could be treat without extraction, however there was an alternative treatments such as apicoectomy that could be used to preserve the tooth and its function in the oral cavity.Case. A male 32 years old patient came to dentist with persistent pain on upper left first premolar. The tooth had been endodontically treated for ten years. Clinical examination tooth #24 had porcelain fused to metal on it, percussion test (+), bite test (+), pain on palpation. Radiographic examination showed that tooth #24 had fabricated post without gutta percha obturation on apical third. There was 3 mm round periapical lesion on the distal side of the tooth. Procedure Apicoectomy and retrograde filling with Mineral Trioxide Aggregate (MTA) and bone graft was performed to eliminate that periapical lesion. Conclusion Apicoectomy is one of main choice to preserve post endodontic tooth with periapical lesion and post core crown on it, as long as possible in oral cavity Keywords : Apicoectomy, Periapical lesion, Post endodontic treatment failure

Background: E glass fiber dental is a fiber that is often used in dentistry. The availability of E glass fiber in Indonesia is still very limited. Various types of non-dental glass fiber materials are found in the market as engineering materials with relatively cheap prices so that they are expected to be used as an alternative to E glass fiber dental, which one of is coconut fiber. The composition of non-dental glass fiber is almost the same as that of dental E glass fiber. The composition affects the mechanical properties and chemical properties of the fiber. Glass fiber compositions such as Na2O and K2O will increase water resistance. Method: This study was conducted using a post test only control group design. The material used in this study was a composite of coconut coir fiber. The subjects of the coco fiber composite were divided into 4 groups for solubility test based on ISO 4049. The results obtained were analyzed using one-way ANOVA (p = 0.000). The results showed the lowest mean component solubility (%) was in the coconut fiber composite group A (0.476±0.03) and the highest yield was in the coco coir fiber composite D (0.6±0.01). Results: The results of the one-way ANOVA test showed a significant difference in the coco fiber composite in the solubility of the components (p

Pendahuluan: Bahan pengisi saluran akar yang digunakan hingga saat ini adalah gutta percha yang dalam aplikasinya harus dikombinasikan dengan sealer saluran akar. Sealer yang baik harus memiliki skala radiopasitas yang tinggi sehingga dapat dibedakan densitasnya dengan jaringan disekitarnya, tujuannya supaya sealer dapat diidentifikasi maupun di monitor bila terjadi kerusakan pada gigi setelah dilakukan perawatan. Tujuan penelitian ini menganalisis perbedaan radiopasitas antara sealer berbahan dasar resin epoksi, sealer berbahan MTA, dan sealer berbahan dasar biokeramik pada teknik radiografi periapikal dengan menggunakan densitometer. Metode: Jenis penelitian observasional analitik dengan pendekatan cross sectional. Dua puluh tujuh sampel penelitian dibagi menjadi tiga kelompok. Kelompok I sealer berbahan dasar resin epoksi. Kelompok II sealer berbahan dasar MTA. Kelompok III sealer berbahan dasar biokeramik. Ketiga kelompok dimasukkan ke dalam cincin plastik berukuran 10 x 1 mm, kemudian dilakukan pengambilan gambar dengan teknik radiografi periapikal digital menggunakan dental x-ray yang beroperasi di 70 KVp dan 8 mA dengan jarak fokus ke jarak 30 cm dan eksposur distandarisasi untuk 0,25 detik. Pengamatan dilakukan dengan menggunakan densitometer, data yang dihasilkan kemudian dianalisis menggunakan uji One Way ANOVA. Hasil: Hasil penelitian menunjukan bahwa dari ketiga kelompok terdapat perbedaan radiopasitas secara signifikan (p<0,05). Sealer berbahan dasar resin epoksi (12,9 mmAl) secara signifikan lebih radiopak daripada sealer berbahan dasar biokeramik (8,04 mmAl) dan sealer berbahan dasar MTA (6,90 mmAl). Radiopasitas dipengaruhi oleh komposisi bahan kimia, media kontras anorganik, nomor atom, komposisi radiopacifier dan densitas pada sealer. Simpulan: Sealer berbahan dasar resin epoksi memiliki radiopasitas tertinggi dibandingkan dengan yang berbahan dasar MTA dan biokeramik. ABSTRACTIntroduction: Nowadays, gutta-percha is widely used as the root canal filling material. However, in its application, it must be combined with a root canal sealer. A good sealer must have a high radiopacity scale value to distinguish its density from the surrounding tissue. In addition, the sealer must be able to be identified and monitored concerning the damage to the teeth after treatment. The purpose of this study was to analyse the radiopacity differences between sealers based on epoxy resin, mineral trioxide aggregate (MTA), and bioceramics on periapical radiographs using a densitometer. Methods: This research was analytic observational with a cross-sectional method. Twenty-seven study samples were divided into three groups. Group I consisted of an epoxy resin-based resin. Group II consisted of an MTA-based sealer. Group III consisted of a bioceramic-based sealer. The three groups were put in a 10 x 1 mm plastic ring. The radiographic images were taken using digital periapical radiography using dental x-rays operating at 70 KVp and 8 mA with a focal distance of 30 cm and exposure standardised to 0.25 seconds. Observations were performed using a densitometer, and the resulting data were then analysed using the One-Way ANOVA test. Results: The results showed that there was a significant difference in radiopacity (p<0.05). Epoxy resin-based sealers (12.9 mmAl) were significantly more radiopaque than bioceramic-based sealers (8.04 mmAl) and MTA-based sealers (6.90 mmAl). Radiopacity is influenced by chemical composition, inorganic contrast medium, atomic number, radiopacifier composition and sealer density. Conclusions: Epoxy resin-based sealers have the highest radiopacity compared to MTA and bioceramic-based sealers.