Poor oral hygiene often leads to chronic diseases such as periodontitis and dental caries resulting in substantial economic costs and diminished quality of life in not only adults but also in children. In this study, the salivary microbiome was characterized in a group of children stratified by the Simplified Oral Hygiene Index (OHI-S). Illumina MiSeq high-throughput sequencing based on the 16S rRNA was utilized to analyze 90 salivary samples (24 Good, 31 Moderate and 35 Poor oral hygiene) from a cohort of Thai children. A total of 38,521 OTUs (Operational Taxonomic Units) with a 97% similarity were characterized in all of the salivary samples. Twenty taxonomic groups (Seventeen genera, two families and one class; Streptococcus, Veillonella, Gemellaceae, Prevotella, Rothia, Porphyromonas, Granulicatella, Actinomyces, TM-7-3, Leptotrichia, Haemophilus, Selenomonas, Neisseria, Megasphaera, Capnocytophaga, Oribacterium, Abiotrophia, Lachnospiraceae, Peptostreptococcus, and Atopobium) were found in all subjects and constituted 94.5–96.5% of the microbiome. Of these twenty genera, the proportion of Streptococcus decreased while Veillonella increased with poor oral hygiene status (P < 0.05). Furthermore, an unassigned species of Veillonella, Veillonella dispar and Veillonella parvula tended to be elevated in the Poor oral hygiene group. This is the first study demonstrating an important association between increase of Veillonella and poor oral hygiene status in children. However, further studies are required to identify the majority of Veillonella at species level in salivary microbiome of the Poor oral hygiene group.

Six Veillonella species have been frequently isolated from human oral cavities including infectious sites. Recently, it was reported that diet, smoking, and possibly socioeconomic status can influence the bacterial profile in oral cavities. In addition, oral hygiene habits may also influence oral microbiota in terms of both numbers and diversity of microorganisms. In this study, the identification of Veillonella species in tongue biofilms of Thai children, divided into three groups dependent on their status of oral hygiene. For this, we used a novel one-step PCR method with species-specific primer sets based on sequences of the rpoB gene. As shown in the results, the number of isolates of Veillonella species was 101 strains from only 10 of 89 subjects. However, the total number of bacteria was high for all subjects. Since it was reported in previous studies that Veillonella species were easy to isolate in human tongue biofilms at high numbers, the results obtained in this study may suggest country- or age-specific differences. Moreover, Veillonella species were detected predominantly in subjects who had poor oral hygiene compared to those with good or moderate oral hygiene. From these results, there is a possibility that Veillonella species may be an index of oral hygiene status. Furthermore, V. rogosae was a predominant species in tongue biofilms of Thai children, whereas V. parvula and V. denticariosi were not isolated at all. These characteristics of the distribution and frequency of Veillonella species are similar to those reported in previous studies. Although further studies are needed in other countries, in this study, a successful novel one-step PCR method was established to detect Veillonella species in human oral cavities easily and effectively. Furthermore, this is the first report investigating the distribution and frequency of Veillonella species in tongue biofilms of Thai children.

Dimulai akhir Desember 2019 terjadi wabah virus baru di dataran china terkhusus di daerah Wuhan, yang secara cepat menyebar diluar China bahkan dalam waktu 2 bulan hampir seluruh dunia terinfeksi COVID-19, sehingga WHO menyatakan Outbreak COVID-19 Global Pandemic. Pada tanggal 2 maret 2020 Indonesia mengumumkan dimulainya kejadian wabah di wilayah Jakarta, Jawa Barat, dan Bali, dalam waktu singkat kurang 1 bulan, 34 provinsi terdeteksi COVID-19. Oleh karena Presiden RI menyatakan bencana nasional non alam, maka dibentuklah Gugus Tugas Percepatan Penanganan COVID-19 yang diawali oleh BNBP dari tingkat pusat hingga wilayah provinsi. Dengan adanya beberapa korban dokter gigi yang meninggal dunia akibat COVID-19, maka Kepala BNPB dan Kementerian Kesehatan menghimbau agar dokter gigi yang berisiko tinggi tertular COVID-19 saat memberikan pelayanan kesehatan gigi dan mulut, untuk sementara menghentikan pemberian pelayanan kecuali untuk kasus-kasus emergensi. Hampir 4 bulan para dokter gigi tidak praktik, tidak memberikan pelayanan langsung ke pasien, dan tidak dapat mengamalkan ilmu dan kompetensi dalam bentuk pengabdian kepada masyarakat. Banyak permintaan dan keluhan dari masyarakat, klinik, rumah sakit dan institusi pelayanan kesehatan agar para dokter gigi segera dapat berpraktik kembali, karena masyarakat kesulitan mendapatkan perawatan. Seiring dengan wacana Pemerintah menerapkan Kehidupan Normal Baru, atau Adaptasi Kebiasaan Baru yang dikenal dengan sebutan era New Normal, PB-PDGI memberikan kesempatan kepada dokter gigi seluruh Indonesia untuk memulai praktik kembali dengan berbagai ketentuan yang harus ditaati. Ketentuan-ketentuan ini dimaksudkan untuk melindungi dokter gigi dan tenaga kesehatan pendukung agar tidak tertular COVID-19, serta menghindari adanya infeksi silang di ruang tempat praktik. Dengan diterbitkan dan diberlakukannya Buku Panduan Dokter Gigi Dalam Era New Normal, maka dimulailah para dokter gigi Indonesia untuk berpraktik kembali. Buku ini memuat panduan secara lengkap, selain ketentuan berpraktik kembali di era new normal, tetapi juga tentang manajemen pembiayaan dan upaya promotif Kesehatan Gigi dan Mulut, yang didukung oleh literatur ilmiah yang kuat, sehingga dapat menjadi referensi bagi siapapun untuk penulisan ilmiah maupun penelitian. iv Ketua umum PB-PDGI memberikan apresiasi yang setinggi-tingginya kepada tim penulis buku Panduan Dokter Gigi Di Era New Normal, dengan dedikasi yang tinggi pula dan jerih payahnya mencari literatur, siang dan malam menyusun kata demi kata yang dirangkai menjadi kalimat-kalimat hingga terwujudnya buku ini yang menjadi pedoman bagi dokter gigi se-Indonesia untuk berpraktik di era new normal. Dengan penuh harapan, agar dokter gigi Indonesia dapat menggunakan buku ini secara bijak dan tidak menjadi keterpaksaan. Semoga Allah SWT selalu melindungi kita semua dan memberikan yang terbaik.. Aamiin...Aamiin… Ya Robbal 'alamin. Demikian terima kasih.

A strain of a novel anaerobic, Gram-stain-negative coccus was isolated from the tongue biofilm of a Thai child. This strain was shown, at the phenotypic level and based on 16S rRNA gene sequencing, to be a member of the genus Veillonella. Comparative analysis of the 16S rRNA, dnaK and rpoB gene sequences indicated that phylogenetically the strain comprised a distinct novel branch within the genus Veillonella. The novel strain showed 99.8, 95.1 and 95.9 % similarity to partial 16S rRNA, dnaK and rpoB gene sequences, respectively, to the type strains of the two most closely related species, Veillonelladispar ATCC 17748 and Veillonellatobetsuensis ATCC BAA-2400. The novel strain could be discriminated from previously reported species of the genus Veillonella based on partial dnaK and rpoB gene sequencing and average nucleotide identity values. The major acid end-product produced by this strain was acetic acid under anaerobic conditions in trypticase-yeast extract-haemin with 1 % (w/v) glucose or fructose medium. Lactate was fermented to acetic acid and propionic acid. Based on these observations, this strain represents a novel species, for which the name Veillonella infantium sp. nov. is proposed. The type strain is T11011-4 (=JCM 31738=TSD-88).