The present study was conducted to assess relationship between drinking water fluoride levels and dental caries among 12 years old school children of 2 districts of Ulaanbaatar city, Mongolia. A cross-sectional analytical study was conducted on 533 school children aged 12 years, selected from 6 schools of 2 districts of Ulaanbaatar city. 533 children were divided into 2 groups according to the fluoride concentration of the waters. The all children were examined oral examination, dental caries was assessed by the DMF-T index. The result of the present study revealed that the caries prevalence in the study population was about 68,9%, and mean DMF-T was 3.05. Water fluoride concentration was highest in Khan-Uul district with 0.622ppm. There was highest prevalence of caries in children who consume water from filtration system in both districts.

The present study was conducted to assess relationship between drinking water fluoride levels and dental caries among 12 years old school children of 2 districts of Ulaanbaatar city, Mongolia.A cross-sectional analytical study was conducted on 533 school children aged 12 years, selected from 6 schools of 2 districts of Ulaanbaatar city. 533 children were divided into 2 groups according to the fluoride concentration of the waters. The all children were examined oral examination, dental caries was assessed by the DMF-T index.The result of the present study revealed that the caries prevalence in the study population was about 68,9%, and mean DMF-T was 3.05. Water fluoride concentration was highest in Khan-Uul district with 0.622ppm.There was highest prevalence of caries in children who consume water from filtration system in both districts.

Background: In the treatment of plaque-induced gingivitis, in addition to mechanical plaque control, the use of chemical plaque control such as mouth rinses for a certain period has shown a positive effect on treatment outcomes and prognosis. Aim: To evaluate the efficacy of a probiotic mouthwash in the treatment of plaque-induced gingivitis. Aim: To evaluate the efficacy of a probiotic mouthwash in the treatment of plaque-induced gingivitis. Materials and Methods: A randomized controlled clinical trial was designed for a period of 2 weeks on 45 systemically healthy subjects between 20 and 25 years having plaque-induced gingivitis. The study population was divided into three groups. Group 1-15 subjects were advised experimental (probiotic) mouthwash. Group 2-15 subjects were advised pos itive control (chlorhexidine) mouthwash and Group 3-15 subjects into a negative control group. Oral prophylaxis was done for all groups at baseline. After the proper oral hygiene instructions, groups 1 and 2 were instructed to rinse their mouth with 15 ml of their respective mouthwashes, for 1 min twice daily, 30 min after brushing. Clinical parameters such as Full mouth plaque score (FMPS), Full mouth bleeding score (FMBS) were assessed at baseline, 2 weeks respectively. Results: At baseline, there was no statistically significant difference between the groups in terms of FMBS and FMPS mean values (p=0.174, p=0.887). At day 14, the FMPS, FMBS mean values were significantly reduced by all treatment modalities ranking probiotic and chlorhexidine is greater than negative control group (p<0.001, p<0.001). Conclusion The probiotic mouthwash was effectively used as an adjunct to mechanical plaque control in the treatment of plaque-induced gingivitis.

Background: A rare angioproliferative condition of the larynx, Kaposhi sarcoma typically affects the skin. Immunosuppressive treatment following organ transplantation and human immunodeficiency virus infection are the causes. Every type of Kaposi sarcoma has human herpesvirus-8. Laryngeal kaposi sarcoma is uncommon in immunocompromised patients; since its initial identification in 1965, 18 cases have been documented globally. A CO2 laser-assisted laryngeal microsurgery is performed through the mouth cavity to remove tumor when kaposi sarcoma of the larynx obstructs the airway. Case report: A 77-year-old woman complained of hoarseness, dry mouth, odynophagia, and dysphagia three months prior when she arrived at the Mongolian-Japan Hospital. Two years ago, she acquired hard, sensitive lumps that were palpable on her right arm, left ankle, and right thigh. At that time, she was diagnosed with Kaposiform hemangiodermatitis and treated at the National Center for Dermatology. HIV test results were negative. Immunohistochemistry: CD31 +/-, CD34 /+/. Using flexible nasopharyngeal endoscopy to get the diagnosis: There was a mass that was about 1.5–2–5 cm in diameter, bluish in color, smooth and movable, and spongy and vascular on the larynx, on the nasopharynx, behind the palatine tonsills, and supraglottic. Surgery: Through the use of Kleinsasser laryngoscopy and a 0-degree endoscope, pathological tissues were extracted under general anesthesia using a laryngeal microsurgical instrument and a laparoscopic bipolar coagulator. The tissues were then sent for histological evaluation, which revealed Kaposi sarcoma, sarcoma grade 1. Results of treatment Pain decreased and quality of life increased following surgery. Upon nasopharyngeal endoscopy, the vocal cord mobility was normal and the surgical incision was clean. Conclusion: Kaposi sarcoma is an extremely uncommon illness. A lower quality of life and further issues can be avoided with an early diagnosis and suitable therapy. It also needs to be continuously monitored because it is a potentially repeatable disease.