Cyst is an enclosed cavity surrounded by epithelial cells and contains cholesterin. Radicular cysts are formed as aresult of chronic inflammation of malassez epithelium, caused by trauma or untreated pulp necrosis. In this case, a 21years-old man came to Clinic of Conservative Dentistry, Faculty of Dentistry, University of Padjadjaran, in Bandungto get dental endodontic treatment on his maxillary right lateral incisor. Patient experienced trauma after a motorcycleaccident ten years ago. Clinical examination with vitality test, percussion test, palpation test showed no complaints.Radiological examination revealed a radiolucent lesion with a clear boundary around the apical. The disorder wasdiagnosed as a radicular cyst of teeth 12. Conventional endodontic treatment performed using calcium hydroxide as aroot canal medication in eight times visiting. The outcome of the treatment was assessed by clinical and radiographicevaluation that showed a reduction of radicular cyst size. It is concluded that conventional endodontic treatment usingcalcium hydroxide as medications is an adequate root canal treatment, that was accompanied by periodic observationcould heal the radicular cysts
Polimerizatian is the critical stage to determine the quality of composites resin, this involves isolated monomer carbon double bonds being converted to an extended network of single bonds. Physical and mechanical properties of composites are influenced by the level of conversion attained during polymerization. An adequate light intensity and light curing time are important to obtain the degree of polymerization. The objective of this study is to evaluate the difference of the hardness nanocomposites which activated by LED LCU based on the variation of curing times. This study is a true experimental research. The samples were made from nanocomposites material with cylinder form of 4 mm in depth, 6 mm in diameter. This samples divided into 3 groups of curing times. Group, I was cured for 20's curing time as a control due to manufactory recommended; Group II was cured for 30's, and Group III was cured for 40's and the hardness (Rebound hardness tester) was determined using Rebound scale (RS) and converted by Mohs scale (MS). There was a very significant level of hardness rate from each group using ANOVA test. The result of the study concludes that there were the differences on the nanocomposites hardness level cured under different curing times 20, 30 and 40 sec. The longer of curing times, the higher level of hardness.
Total etch adhesive system has been widely used in teeth conservation area as an adhesive agent before implicating composite resin restoration agent. The aim of this research is to prove the difference of tensile bond strength between total etch (Single Bond) and self etch adhesive system (Adper prompt L-Pop) on dentin surface in vitro. The extracted and non carries maxillary premolar teeth were used in this research and were divided into 2 groups. The first group comprised 15 specimen teeth etched in phosphoric acid and was applicated with the Single Bond adhesive agent. The second group comprised 15 specimen teeth, applicated with the Adper Prompt-L-Pop. The composite resin (Z 350, 3M) was applied incrementally and each of the layers was rayed for 20 seconds. The specimens were stored in physiologic solution before they were tested. Tensile bond strength was measured by LRX Plus Lloyd Instrument, with 1 N load and 1 mm/minute speed, and the measurement result was in Mpa unit. The result was evaluated statistically by the Student t-test with α = 0.05. Single Bond (the 5 th generation) showed a better bond strength compared to the Adper Prompt-L-Pop (the 6 th generation).
119 Perawatan apeksifikasi pada gigi permanen muda insisivus pertama kiri atas yang non-vital ABSTRAKGigi permanen muda yang mengalami kerusakan karena karies atau trauma dapat berakibat nekrotik sebelum perkembangan dan pertumbuhan akar selesai, sehingga menyebabkan saluran akar tidak terbentuk sempurna dan apeks terbuka. Kesulitan dalam melakukan perawatan saluran akar gigi tersebut karena tidak adanya apical stop, sehingga obturasi tidak dapat dilakukan karena bahan pengisi akan terdorong ke periapikal. Tujuan dan perawatan pada gigi anterior dengan diagnosis nekrosis adalah untuk tercapainya saluran akar yang menutup apikal akar dengan deposit jaringan keras, dengan cara apeksifikasi. Obat yang digunakan adalah kalsium hidroksid dengan sifat basa kuat dan dapat memberikan efek antimikroba serta mampu melarutkan jaringan. Hasil yang dicapai adalah terjadi penutupan apeks gigi, jaringan lunak di sekitar gigi dalam keadaan normal atau tidak dijumpai adanya gambaran radiolusen yang merupakan tanda patologis di bagian periapikal. Setelah dilakukan perawatan apeksifikasi pada gigi permanen muda yang mengalami nekrosis, dsimpulkan bahwa hasil perawatan memperlihatkan keberhasilan yang ditandai dengan penutupan foramen apikal, jarinan lunak di sekitar gigi normal dan radiologis tidak dijumpai gambaran radiolusen. Kata kunci: gigi permanen muda, nekrosis pulpa, perawatan apeksifikasi
One visit root canal treatment is one of the current treatment needs. Treatment includes cleansing, shaping, andobturation of the root canal sterilization is done in one visit. The purpose of one visit root canal treatment is toprevent the expansion of the pulp disease to the periapical tissues and restore normal periapical tissues. In thispaper, it is reported a woman, 28 year old, wanted to improve dental fillings of tooth 11 that have necrosis but haveno periapical lesions. Root canal treatment performed in one visit on tooth 11, which the result was satisfactory. Itcan be concluded that pulp necrosis without periapical lesions treated with one visit root canal treatment provedquite effective in seeing the results of clinical examination and radiographic post-treatment. However, it requiresknowledge, skills, adequate diagnosis and case selection, and employment of asepsis to the success of one visit rootcanal treatment.
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