[Some characteristics of distal cantilever bridges on the basis of two representative studies (in Hungary)]. / A disztálisan szabadvégû rögzített fogpótlások néhány jellemzôje két, reprezentativ szûrôvizsgálat alapján.

In Hungary a dental epidemiological study was performed by a team of calibrated dentists of the Department of Prosthetic Dentistry (Semmelweis University, Budapest) in 1985-89 for the first and in 2003-2004 for the second time. Probands were selected randomly from the population attending the compulsory lung screening examinations. Oral inspection was done under artificial light. Data were immediately entered into computer on the spot. In the first epidemiological study after the examination of 9991 people we have found 1625 cantilever bridges, in the second study we examined 4606 people, and we have found 878 cantilever bridges. In 1989 66.9% of the cantilever bridges replaced missing tooth on the mesial and 33.1% on the distal end. In 2004 44.5% of the cantilever bridges replaced missing tooth on the mesial and 55.5% on the distal end. In both investigations one pontic distal cantilevers were the majority of restorations. In the study of 1989 we have found the highest number of the bridges with one distal pontic supported by two abutments. In the 2004 study the most frequently found one pontic distal cantilever bridges were supported by more then two abutments. Both investigations found the most distal cantilever bridges in the upper jaw replacing the first molar (32%, 38%), then the second molar (20%, 28%), and first premolar (18%, 20%). On the lower jaw distal cantilever pontics were replacing first molars in most of the cases (61%, 59%), then second premolars (19%, 24%) and first premolars (8%, 9%). In both investigations most frequently free end saddle (74%, 83%), remaining teeth (19%, 16%), crowns and artificial teeth distally from the cantilever pontic have been found.

[The prevalence of oral mucosal lesions in Hungary]. / Szájnyálkahártya-elváltozások elofordulási gyakorisága Magyarországon.

The aim of the survey was to recognize the lesions of the oral mucosa (any alterations from healthy normal tissues) related to gender, age, intraoral localization, geographic regions, according to smoking habits and dental surgery attendance, based on the data of "Epidemiological national survey on oral health 2003-2004.". In the nationwide survey 4606 people (2923 women, 1683 men) participated. Oral mucosal lesions registered in 10.14 and 9.41% in males and females (respectively). The highest prevalence of mucosal lesions occurred in 45-64 year old age group. The highest number of the oral lesions was found in the buccal mucosa in males (42%). In females the most of the lesions are registered on the hard palate (24%) and on the buccal mucosa (24%). By geographic regions the highest prevalence of oral mucosal lesions occurred in "Közép-Dunántúl" statistical region, and the lowest prevalence was found in "Dél-Dunántúl". Statistically significant correlation could be shown between prevalence of oral mucosal lesions and smoking habits (p < or = 0.05) and there was a significant correlation between the frequency of dental surgery attendance and the prevalence of mucosal lesions in the examined population. The data of this epidemiological study could serve a good base for planning of preventive programs in different populations in the future.

[Monitoring trends in fixed partial denture design based on national surveys]. / Fix fogmûvek jellemzôinek alakulása országos felmérések alapján.

To restore partially edentulous arches reasonable number of fixed partial dentures (FPD) are used in Hungary. This paper describes statistic parameters of these restorations based on analysis of a large sample size. Dentists of the Department of Prosthodontics performed oral health surveys according to WHO criteria, first survey in 1985-1989 and second in 2003-2004. The oral surveys were carried out at the lung cancer screening stations among those individuals originally referred to undergo x-ray lung screening examination. In the "first" survey data collected on 6224 FPD; in the "second" survey data collected on 3676 fixed restorations were analyzed. Besides time parameters, number of pontic teeth, abutment teeth to pontic teeth ratio (abutment saturation), position of pontic teeth in the arch, position of abutment teeth in the arch, main features of "tooth location" adjacent to restoration (remnant tooth, crown, artificial tooth, missing tooth), framework- and veneering materials were investigated. For interpreting data SPSS 10.0.5 for Windows was applied. Restorations' mean survival time was 9.34 +/- 8.47 years. Average number of FPD unit was: 6.34 for the maxillary and 4.62 for the mandibular jaw. Average number of abutment teeth was 3.58 in the upper and 2.82 in the lower jaw. Most frequent abutment teeth of both the maxillary and mandibular jaw were canines (23%) (20%). In order of frequency: pontics of the upper jaw replaced first premolars (27%) and second premolars (23%); lower jaw pontics replaced first molars (36%) and second premolars (21%). Findings of our survey demonstrated that results were much jaw dependent, while participants' sex and age influenced the outcome less. Comparison between left and right side of the arch revealed considerable symmetry. Recently collected data of 2004 have shown increased extension of fixed partial dentures with significantly higher number of abutment teeth involved. Statistical analysis of data collected on fixed partial dentures provide a sound basis for estimating the present oral health status of the population. Monitoring patterns of change have an important epidemiological relevance. Results of our present findings serve as a reliable source to plan future strategy of the dental care system and also helps to measure efficiency of the dental education system.