Background: The use of different polymerization methods may result in variation of mechanical properties of composite resin. Polymerization increases the conversion rate of monomers reflecting in improvement of compressive strength. Post-curing methods can be used to increase strength to the composite resin. Purpose: To determine the difference of compressive strength of post cured hybrid composite resin by using three different size of lightbox. Methods: This research was conducted in a true in vitro experiment. Research carried out by making a tube-shaped cylinder hybrid with 3 mm diameter and 6 mm height composite resin samples post cured by using 3 different size of light box, 3 cm x 3 cm x 3 cm (A), 4 cm x 4 cm x 4 cm (B) 6 cm x 6 cm x 6 cm (C), and a non post-curing control. Compressive strength test was then performed using a universal testing machine. Each sample was tested and averaged to obtain values in order to be analyzed statistically using ANOVA and multiple comparison. results: There is an increase in compressive strength of each group, namely group A (172.9460 MPa), B (154.821 MPa), C (154.0789 MPa) and control (123.3550 MPa), and a statistically significant difference (F<0.05). Conclusion: The smaller size of the lightbox is used, the higher the compressive strength of composite resin.

This study aims to determine the differences in microleakage of root canal obturation using two different sealers, zinc oxide-eugenol based sealer and epoxy resin based sealer. The subject of the research was using 32 mandibular premolars. The subjects were randomly divided into 2 groups each consisting of 16 teeth. The group I was root canal obturation with zinc oxide-eugenol based sealer and group II was root canal obturation with epoxy resin based sealer, respectively. The entire root surface coated with two coats of nail polish except the apical 1 mm and soaked with 2% methylene blue solution for 1 week at 37°C. Penetration of the color of methylene blue solution is an indicator of an apical leakage. The results showed that root canal obturation with epoxy resin based sealer has lower apical leakage than root canal obturation zinc oxide-eugenol sealer (p<0.05).

Perawatan saluran akar merupakan salah satu perawatan endodontik untuk mempertahankan gigi dengan bagian jaringan pulpa yang sudah terinfeksi bakteri. Irigasi saluran akar merupakan salah satu proses yang sangat penting untuk mengeliminasi bakteri dalam saluran akar. Pada saluran akar gigi dengan perawatan endodontik yang gagal ditemukan bakteri Enterococcus faecalis, sehingga diperlukan alternatif bahan irigasi yang lebih efektif. Tujuan : Menjelaskan daya hambat perasan jeruk nipis (Citrus aurantifolia) sebagai bahan alternatif larutan irigasi dalam menghambat pertumbuhan bakteri Enterococcus faecalis pada perawatan saluran akar. Bahan dan Metode : Sampel yang diuji berjumlah 32 berupa biakan bakteri Enterococcus faecalis dalam media agar BHI pada cawan petri. Penelitian ini menggunakan metode difusi cakram kertas. Setiap 1 cawan petri dibagi menjadi 4 bagian dan diletakkan cakram kertas yang masing-masing telah diberikan perasan jeruk nipis (Citrus aurantifolia) kosentrasi 100 % dan kontrol positif (NaOCl 2,5%). Bakteri ditanam dan diinkubasi, kemudian diencerkan dengan standar konsentrasi bakteri McFarland I (1.10 6 cfu/ml). Hasil Penelitian : Besar rerata daya hambat bakteri Enterococcus faecalis dalam perasan jeruk nipis (Citrus aurantifolia) sebesar 5,8 1,8 mm, sedangkan pada larutan NaOCl 2,5% sebesar 3,9 1,1 mm. Uji hipotesis memiliki nilai p = 0,000 (p 0,05). Kesimpulan : Perasan jeruk nipis (Citrus aurantifolia) memiliki daya hambat bakteri Enterococcus faecalis yang lebih efektif.

Pendahuluan: kasus ini memperlihatkan lesi periapikal yang meluas pada gigi anterior. Perawatan saluran akar dilakukan secara konservatif, dengan mengaplikasikan medikasi intrakanal berupa kalsium hidroksida. Tujuan: setahun setelah perawatan memperlihatkan penyembuhan melalui berkurangnya ukuran lesi. Penatalaksanaan: perawatan saluran akar dilakukan dengan beberapa kali kunjungan menggunakan medikamen berupa kalsium hidroksida Kesimpulan: laporan kasus ini memperlihatkan keberhasilan perawatan saluran akar konvensional non bedah.

As one of the natural resin materials produced by bees, propolis has been used as a traditional medicine for various diseases because of its biological and pharmacological activities. The purpose of this study was to analyze the potential of propolis as a healing agent for pulp injuries. A total of 35 journals from PubMed, Ebsco, ResearchGate, Wiley Online Library, and other international journal databases were analyzed. Propolis is very rich in active components such as flavonoids that have biological functions such as anti-inflammatory, antibacterial, antifungal and antioxidant which can act as a potential healing agent