Introduction: Staphylococcus aureus is one of the important medical pathogens which have been recognised for many years as a remedyfor a wide case of oral infections. Nowadays, the use of herbal remedy for reducing bacteria in the oral cavity has been implemented widely due to thefewer side effects. Therefore, researchershave been findingwaysto use pineapple in dentistry to prevent many cases of oral diseases. The purpose of this study was to prove that pineapple extract indifferent concentration had the potential as an antibacterial agent towards Staphylococcus aureus. Methods: The study was an experimental laboratory conducted by determining the minimum inhibitory concentration of pineapple (Ananas comosus) with thetwo-fold serial dilution methods. Results:The The Minimum Inhibitory Concentration (MIC) of the pineapple extract was 1.56%-0.78%. Conclusion: The pineapple extract had anantibacterial effect towards Staphylococcus aureus due to the bromelain compound and its phytochemical factor such as Vitamin C and flavonoid.

The use of removable dentures is one of the main approach to oral rehabilitation of partially or completely edentulous patient. Denture hygiene is an important things for the elderly as a vulnerable people. The purpose is to discribe both of the literature or recent study that related to denture hygiene in elderly. Removable denture got special attention cause accumulate food residue, bacterial biofilm, and calculus at the mucosa or denture interface. Recently, the presence of bacterial bioflim on denture was considered a risk factor for aspiration pneumonia in frail older people. In general, removable denture that is used acrylic based denture.The microporous surfaces of an acrylic denture provide a wide range of environments to support microorganisms that can threaten the health of patient. Knowing denture cleanser as apart of denture hygiene in elderly is an important things.

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Pendahuluan: Obat kumur herbal jeruk nipis dan klorheksidin dapat membantu menurunkan plak pada permukaan gigi. Penelitian ini bertujuan untuk mengetahui perbedaan efektifitas obat kumur herbal dan klorheksidin terhadap penurunan nilai indeks plak. Metode: Jenis penelitian berupa eksperimental semu dengan metode intervensi. Populasi penelitian adalah 200 siswa kelas 1 dan 2 di MTs Ma’Arif Jatinangor Sumedang. Teknik pengambilan sampel melalui purposive sampling dan didapat 25 siswa yang memenuhi kriteria. Semua siswa menggunakan kedua obat kumur dengan periode washed out. Pemeriksaan indeks plak sebelum dan sesudah pemakaian obat kumur  menggunakan metode Oral Hyigiene Index Simplified (OHIS). Hasil: Sampai penelitian ini selesai, jumlah siswa yang diperiksa indeks plak sebelum dan sesudah penggunaan obat kumur hanya 14 orang karena selama penelitian beberapa siswa tidak dapat hadir. Hasil penelitian menunjukkan bahwa nilai indeks plak sebelum dan sesudah menggunakan obat kumur herbal terjadi penurunan dari 1,27 menjadi 1,09, sedangkan klorheksidin meningkat dari 1,14 menjadi 1,28. Anak-anak lebih memilih obat kumur klorheksidin  (64%) karena rasa yang lebih dapat diterima.  Simpulan: Obat kumur herbal jeruk nipis mempunyai efek lebih baik dalam menurunkan plak.

Introduction: Instruments used for dental examinations and treatment often come into contact with fluids and soft tissues found in the oral cavity. The contact while the dental treatment procedures can cause contaminated and potentially mediates the displacement of microorganisms from the mouth of the patient to the operator or to other patients. Sterilization is the most effective process for the decontamination of reusable equipment. The objective of this study was testing the success of dry heat oven sterilizer to dental instruments sterilization in X Hospital. Methods: This study used descriptive method. Data was obtained by bacteriological examination, with a random sampling technique and obtained a sample of five instruments. Results: The results show there is a growing colony of bacteria in each sample after examination materials were incubated at 37 ºC for 18-24 hours. Conclusion: The conclusions of this study are dry heat oven sterilizer not belong to the success criteria for dental instrument sterilization process in X Hospital.