Aproximální kaz a jeho výskyt u 18letýchstředoškoláků

Approximal Tooth Decay and its Prevalencein 18 Years Old Secondary School Students

Authors searched into 316 18-years old students with aim to detect primaryapproximal caries on molars and premolars using radiographic examination. They examinedeveryone, after their filling the preliminary questionnaire, by a clinical examination of teethand periodontal tissue, made two radiographs (bitewing) and performed their reading. Totalnumber of approximal surfaces on bitewings was 9782, from these 2611 (26.7%) surfaces werenot possible to read, 407 (4.2%) were treated by a filling. Remaining 6764 (69.1%) untreatedsurfaces were evaluated by caries depth throw enamel and dentin using the grading frommethods. 62% of approximal surfaces were without caries damage - D0, D1 – 10%, D2 – 10%,D3 – 7%a D4 – 6%of approximal surfaces. Authors particularised rate of individual distal teethand found out that distal and mesial approximal surfaces of the second upper and lower molarhad the least caries occurrence but mesial approximal surfaces of the first upper molar anddistal approximal surfaces of the first lower molar had the most caries occurrence. They had toestablish the absence of interdental hygiene by 82% of examinants.

Key words:
approximal caries – approximal caries detection – bitewing – interdental hygiene