A study on 55 people aged from 15 to 20 years old (36 males and 19 females) were conducted at Ba Vi Drug Addiction Rehabilitation Center, Ha Noi and other 45 people (25 males and 20 females aged from 17-19 years) who are at grade 12 Dinh Tien Hoang High school, Dong Da district, Ha noi did not use drug addiction served as control group. The result showed that: they start using drug addiction since too young with reasons as: curiousness, mimic and attracted by friends. If they are drug addiction, they also are cigarette addiction. The abnormal behaviour often seen among them: parents’ opposition and leave home overnight. These teenage often live in the family which there is conflict between parents, lack of pay attention on their children, so crude on education method. Most of them have friends who are drug addiction and live in the area where a lot of drug addiction as well as drug addiction sellers were seen.
Substance-Related Disorders ; Adolescent ; Rehabilitation

The study carried out on 2305 adults (from 16 to 70 years old) in three areas: in town, countryside and the U Minh indigo forest of Ca Mau province. The result showed that: the common chronic tonsilitis prevalence in the community was 8.4%, the town area 7.2%, the countryside 7.7% and the U Minh indigo forest 11.3%. Ratio of catching disease was highest in people working in forest (12%), and lowest in staffs (5.6%). People who smoking over one pack per day had highest morbidity (13.7%) and nonsmokers had lowest rate of catching disease (7.5%). People with chronic tonsilitis seek for periodical health check up reached 4.4%, lower than people do not (8.6%). People with chronic tonsilitis in poor families acquired 11.4%, higher than that in moderate income families (8% ). So, the dangerous factors leading to the risk for the chronic tonsilitis included: the career nature, smoking habit, periodical health check-ups, the family income and non-risking factors included the sex and living with smokers
Tonsillitis ; Adult ; Epidemiology

Adult persons of 16-70 years old at the age groups in 3 urban, rural areas and U Minh muddly jungle in Ca Mau province from August 2002 to October 2003 were investigated. The incidence of chronical otitis media with ear-drum membrane perforation reached 1.6% in general, 2.1% in U Minh jungle, 1.2% in urban and 1.6% in rural areas. Related factors and factory which increased the incidence were chronical similar rhinitis, amygdalitis indoor animals. The gender and smoking habits were not related.
Otitis Media/epidemiology ; Epidemiology ; Adult

Study on 105 women abortioning under 3 months at Family planing department of National Obstetric hospital from 19/12/2003 to 16/1/2004. The result showed that: There were low rate client < 20 ages (1%) and > 45 ages (1,9%), 48,6% university level. The previous abortions and the number of children increased vs. abortion rates decreased. Pregnancy under 8 weeks is 74,3% and more than 8 weeks is 25,7%. The most of clients were checked by hCG test and ultrasound before abortion, low rate (1%) weren’t. Evaluation of using the family planning and abortion methods: The rate of no using the family planning methods on the last of 3 months before abortion were higher than that on previous time; The natural family planning methods were still high rates; The rate of using family planning methods post aborting 90,5% was higher than previous time 78,1%, on the last of 3 months before abortion 74,3%; Particularly, the using of the natural family planning methods were down, the using of the interventional family planning methods were up.
Abortion, Induced ; Family Planning Services ; Epidemiology

292 patients with gestational trophoblastic tumor diagnosed by beta-hCG assay were treated with chemotherapy. The rate of hysterectomy performed before chemotherapy is higher than that during and after chemotherapy. This rate is higher in the group of metastasis subjects than in no metastasis subject group. The rate of single chemotherapy resistance of hysterectomy group is lower in the case of hysterectomy performed before chemotherapy than in the case during and after chemotherapy
Hysterectomy ; Gestational Trophoblastic Neoplasms ; Patients ; Therapeutics

Introduction of 2 new instruments to help improve the quality of endodontics treatment nowadays, it was turning brooch system, especially was protapers and digital tomorgraphy machine. The appearance of Protaper system was a remarkable advantage in endodontics field, having more advantage than older ones such as: more flexible in big brooch, larger tapering helping marrow tube was cleaned and filled in better, the effect of cutting higher, safer in using, completely controlling with touch, decreased ivory crushed in top area, minimum decreased the pressure on brooch and less using brooch, less step, therefore, saving a lots of time. Digital tomorgraphy system was a solution to save tomography time, especially, Visualix USB system was produced by Gendex-Dentsply company. It had more advantage than general tomography system, such as reducing radioactive ray so that it could be put in clinics, no need to darkroom and chemicals, receiving rays by CCD, saving alots of time
Endodontics ; Therapeutics

292 patients with mast blastocytoma who were diagnosed after hydatiform pregnancy, after birth and post pregnancy basing on the examinations of beta-HCG, of matastasis and of anapathology, treated till beta HCG < 5 UI/l. According to US classification, the age of the group 1 (non metastasis ligh mast blastocytoma) is younger than group 2 (metastasis severe mast blastocytoma) and in the group 2 the duration from termination of pregnancy to detection of the condition is longer than group 1. In the group of mast blastocytoma of severe prognosis there are an uterus damage of chorion carcinoma, an invasive hydatiform pregnancy. The simple resistance to chemiotherapy is more dramatical in the group 2 than the group 1
Pregnancy ; Pregnant Women ; Women ; Prognosis

Study conducted on 57 cases of complete hydatiform mole, with the average fetal age of 13.5641.04 weeks (lowest 6 weeks, highest 20.5 weeks) beta-hCG average level 1158656.16246627.71 IU/l (min 79072 IU/l, max 5474400 IU/l), volume of removed tissue – min 100 ml, max 2500 ml). Results showed that the correlation between preevacuation beta-hCG level and removed tissue volume is higher than the correlation between gestational age and the number of evacuated mole. Between preevacuated beta-hCG level and gestational age the correlation is not valuable
Abortion, Legal ; Gestational Age ; Pregnant Women

30 patients with abdominal operation without pathology of gallbladder stone participated to the study. The size of bile duck out liver is measured during operation. This size was compared with this measured by ultrasound. Results: The wide of gallbladder: 2.48+/-0.2cm; the depth of wall of gallbladder: 2.38+/-0.28mm; diameter of OMC: 5.38+/-0.39cm. The ultrasound can not measure the bile duck in liver. The diameter of portal vein: 1.05+/-0.06cm
ultrasonography ; Bladder Calculi

To get a better dental care in children, the dentist needs to approach with the dentist who treats for them. This responsibility is belonging to both society and the dentist. A child’s parent knows how to persuade her/his to see the dentist, don’t let them terrify. The parents also should spend more time for their children to help the dentist can give them the better dental care. The dentist must learn more about the children’ psychology and understand their behaviour. Each child has own character and behaviours and they effect from different environment so it is necessary to have the combination of the dentist and other health workers in the dentist’s clinic for a better dental care in children
Dental Care ; Child