eng Oriental Scientific Publishing Company Biomedical and Pharmacology Journal 0974-6242 2017-12-21 10 4 1735 1740 10.13005/bpj/1286 17164 article Sri Rezeki 1 Sunnati 2 Nadia Vidirachmilla 3 1Department of Oral Medicine, Faculty of Dentistry, Universitas Syiah Kuala, Banda Aceh- Indonesia. Department of Periodontology, Faculty of Dentistry, Universitas Syiah Kuala, Banda Aceh- Indonesia. Traumatic ulser is a lesion in oral mucosa caused by trauma. Traumatic  ulcer resulting pain can disturb activities and metabolism. Noni leaves (Morinda citrifolia L) contain flavonoid, saponin, and tannin as anti-inflamatory, anti-bacterial, and antioxidant to accelerate healing process.  This research aimed to determine the effect of Morinda citrifolia L leaves extract on healing percentage of traumatic ulcer in oral mucosa. Ulcer was made by put hot burnisher on lower labial mucosa of twelve Rattus norvegicus for a second. They were divided into three groups. First group was given Morinda citrifolia L leaves extract, control group were given triamcinolone acetonide 0,1% and aquades. The research was performed for 10 days by measuring ulcer diameter and applicating extract. Based on Independent-Sampels T Test showed Morinda citrifolia L leaves extract has no significant effect on healing percentage compared to control groups with p = 0.18 and 0.694 (p and gt; 0.05), recovery day for treat group was eighth day and for each control groups were tenth day. Morinda citrifolia L leaves extract has no significant effect on wound healing percentage of traumatic ulcer compare to positive control and negative control. https://biomedpharmajournal.org/vol10no4/the-effect-of-noni-leaves-extract-morinda-citrifolia-l-on-wound-healing-percentage-of-traumatic-ulser-in-oral-mucosa-of-wistar-rats-rattus-norvegicus-by-in-vivo/ Morinda Citrifolia leaves Extracts   oral Mucosa Traumatic Ulcer