Fogorvosi szemle, 2009 (102. évfolyam, 1-6. szám)
2009-04-01 / 2. szám
71 FOGORVOSI SZEMLE ■ 101. évf. 5. sz. 2008. tervention studies may prove this hypothesis. The goal of this intervention study was to determine the effect of periodontal treatment on the pregnancy outcome in women with potential preterm birth and initial localized chronic periodontitis. Forty-one women with a single child pregnancy were enrolled in the study. For this treatment group, oral hygiene instructions and periodontal therapy were provided, while the control group subjects (42 persons) did not receive any periodontal treatment. In the treatment group, the mean weight of newborns was 3 079.0 g, compared to the control group mean of 2 602.4 g. The incidence of preterm birth and low birth weight in the treatment group was significantly less than in the control group (p=0.015). Periodontal treatment appeared to have a beneficial effect on birth weight and time of delivery. PERIODONTAL RISK ASSESSMENT BEFORE PROSTHETIC TREATMENT Gorzó István, Vályi Péter, Szabó Zénó University of Szeged, Faculty of Dentistry, Szeged, Hungary The prevention and treatment of disease is based on accurate diagnosis, reduction of causative factors, risk management and correction of the harmful effects of disease. Risk of development of chronic inflammatory periodontal disease can increase significantly after incorrect treatment (inflammation, renewing and progression of disease), considering that the dentist does not take care of the state of periodontal tissues before prosthetic treatment, or the quality of a crown, bridge, removable prosthesis do not fulfill every requirements. Risk predictor is a factor that has not current biological plausibility as a causative agent for disease but has only been shown to be associated with disease in cross-sectional studies. Risk factor is thought to be causal for disease, it is biologically plausible as a causal agent (i.e. precede the development of disease).The risk predictors and the risk factors of the periodontium have to estimate together before prosthetic treatment. To assess the risk must use different periodontal parameters, such as BOP, number of pockets deeper than 5 mm, number of missing teeth, bone loss in relation to age, systematic disease, genetic involvement (IL-1 gene polymorphism), and environmental factors or bad customs, such as smoking. The risk diagram can illustrate the patient’s status and helps to plan the periodontal treatment before prosthetic treatment. The life span of a prosthetic work depends on previous periodontal treatment and/or estimation of periodontal state. TOOTH WEAR - INCIDENCE, PREVALENCE, CAUSES AND PREVENTION Jász Máté Semmelweis University, Budapest, Hungary Tooth wear has always occurred during the history of mankind, but the causes of this phenomenon have changed radically in the past few decades. In an epidemiological study that our university conducted among 12-year-olds in Hungary in 2008, we found signs of wear in 98.3% of the children. As for the number of affected teeth, out of the 475 children only 5.9% had less than 3, 13.9% had 3-5, and 58,3% had 5-10 worn teeth. This high percentage reflects the fact that incisors and canines are very often affected by tooth wear. The pH value of a great number of industrially manufactured food products is lower than the critical 5.5. The immoderate consumption of these products, together with overdone or improper oral hygienic activity, and some diseases (such as gastro-oesophageal reflux and bulimia) should be responsible for the accelerated loss of dental hard tissue. The number of rest-teeth in elderly patients is getting higher, due to cariological and parodontal prevention. Tooth wear may cause a disturbing aesthetic condition and functional disorders for these patients. 1 In these cases, prosthetic rehabilitation is very difficult, and the costs are high. Therefore, we should extend our preventive treatment over tooth wear. It is important for dentists and dental hygienists to know and to recognize the problem. It is them who can teach the patients the preventive measures and of course they do the primary and secondary preventive care as well. CARIES RISK ASSESSMENT IN DENTAL PRACTICE Karjalainen Sara Institute of Dentistry, University of Turku, Finland The importance of risk assessment for successful prevention is fundamental. However, there are some conditions for reasonable caries risk assessment. The prevalence of caries should be low, preferably less than 30% to justify the expenses used to identify in- J dividuals expected to develop new lesions in excess. [ Secondly, accurate and feasible means of identifying such subjects are needed. Unfortunately, no single test is yet available which could accurately predict the caries risk of schoolchildren and adults. The level of past caries experience is the most powerful means, and is probably the most commonly used caries predictor so far. By combining the level of past caries with dental history, the predictive power can
