Traumatic oral ulcer is commonly caused by mucosal injury due to mastication or speaking, warm food or drink, sharp restoration surface, as well as partial broken restored tooth.  We reported a case of traumatic oral ulcer in an 18-year-old female who was admitted to the RSGM Unsoed due to painfull sensation on the lesion. Objective examination revealed two lesions, as follows: tooth 47, painfull ulcer in buccal mucosa, solitary, whitish red, white border (punch-out), 4 mm in diameter; teeth 33 and 34, an irregular fissure, solitary, on the 2/3 posterior part of the tongue, 2 mm in depth, 1 cm in length, and not painfull. The diagnosis of this case was traumatic ulcer due to traumatic occlusion based on anamnesis, examination, and occlusion check using articulating paper on the nearest antagonistic tooth to the lesion. The treatment included Dental Health Education (DHE) concerning proper tooth brushing, topical triamci-nolone acetonide application for 5 days, dan selective grinding of teeth 17 and 47. After one-week follow-up, the ulcer had improved and no hyperemia, therefore, the patient could chew comfortably.Keywords: traumatic ulcer, traumatic occlusion, selective tooth grindingAbstrak: Ulkus traumatik biasanya disebabkan oleh tergigitnya dinding mukosa ketika makan atau berbicara, meminum dan memakan yang panas, permukaan restorasi gigi yang tajam, maupun adanya tumpatan yang pecah sebagian. Kami melaporkan kasus seorang perempuan berusia 18 tahun dengan kondisi ulkus traumatik datang ke RSGM Unsoed karena merasa terganggu dan perih pada bagian yang luka. Pada pemeriksaan objektif didapatkan pada gigi 47, lesi berupa ulkus pada area mukosa bukal, tunggal, berwarna merah keputihan, dengan peninggian pada tepi berwarna putih, nyeri, diameter 4 mm; dan pada gigi 33 dan 34, lesi berupa fisura memanjang, berbentuk iregular, tunggal, pada 2/3 dorsum lidah dengan kedalaman 2 mm, panjang 1 cm, tidak terasa nyeri. Diagnosis kasus ini ialah ulkus traumatik akibat oklusi traumatik berdasarkan anamnesis, pemeriksaan, dan cek oklusi menggunakan articulating paper pada gigi antagonis terdekat dengan lesi. Penatalaksanaan meliputi Dental Health Education (DHE) yaitu cara sikat gigi yang baik dan benar, pemberian triamcinolone acetonide topical selama 5 hari, dan selective grinding pada gigi 17 dan 47. Setelah satu minggu pada pengecekan didapatkan perbaikan ulkus dan tidak ditemukan pembengkakan sehingga pasien sudah nyaman untuk makan pada area tersebut.Kata kunci: ulkus traumatik, oklusi traumatik, selective grinding, trauma mekanik

Introduction: Matrix metalloproteinase-8 (MMP-8), encoded by MMP-8 gene (chromosomal location, 11q22.3), is a proteolytic enzyme that is involved in the pathogenesis of periodontitis. Polymorphism of the encoding MMP-8 gene can affect the risk of the disease. Objectives: This study aimed to evaluate the relationship between +17 C/G polymorphism in MMP-8 and periodontitis in an Indonesian sample population. Material and methods: Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis of the +17 C/G polymorphism in MMP-8 was conducted in stored genomic DNA samples from 100 subjects with periodontitis and 100 healthy controls. Patients were examined in a previous study by a periodontics and diagnosed as periodontitis based on anamnesis and clinical examination (periodontal pocket depth ≥ 4 mm and the presence of clinical attachment loss. Results: The frequencies of the genotypes or alleles in the periodontitis and control groups were not significantly different (genotype, p = 0.283; alleles, p = 0.11). Any remaining trend toward higher frequencies of the polymorphic genotypes or alleles in the periodontitis group was explained by the adjustment for age. Conclusions: The results showed no significant association between the +17 C/G polymorphism in MMP-8 and the risk of periodontitis in the Indonesian population. No change in the significance is expected even with a considerably larger sample.

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Patients in the elderly group have a higher risk for dental and oral health problems because in old age, caries and periodontal tissue are generally more severe and progressive. The aging process causes changes in the structure and appearance of the teeth, the oral mucosa, the decline in function salivary glands, and loss of bone minerals through bone matrix resorption. The occurrence of bone matrix resorption results in the elderly group more often experiencing tooth loss which can be exacerbated by the occurrence of periodontal disease. After tooth extraction, this condition needs to be considered by dentist so that the denture made later has good retention and stabilization and remains comfortable for the patient to use. The aim was providing an overview regarding the procedure of extraction teeth with the change of bone matrix as a preparation for the prosthodontic complete dentures treatment. A 56-year-old female patient came to RSGM Unsoed wanted to order complete dentures so that the remaining teeth shoul be extracted. Patient feels discomfort and difficulties when eating and drinking. Intraoral examination, only teeth 16 were left with gingival recession. The patient's alveolar bone condition showst ends to be flat in the edentulous posterior area. The extraction case in elderly patients must be carried out according to the right procedure with minimal trauma so as not to damage the supporting tissue around the tooth and facilitate the process of denture treatment.