Gnatometrijska obilježja ispitanika sa znakovima koronarne kompresije i bez njih

In a longitudinally surveyed sample consisting o f 51 subjects with and 25 subjects without coronary crowding, aged 11 to 13, 6 standard gnathometric variables, Angle classes developmental level o f apical base o f maxilla and o f the orthodontic status found before the replacement o f teeth were analyzed. The purpose o f the study was to identify relevant factors responsible for the development o f crowding, as well as to recognize its early symptoms. The results o f the study showed the following: - mean sagittal and transversal dimensions o f the upper dental arch was significantly lower in subjects with coronary crowding; - in both groups o f subjects, class I was most frequently found, with coronary crowding it was mostly class II/l, and without it class II/2 and class III; - apical base development level most often coincided with the development o f dental arch; - coronary crowding in deciduous dentition and a very early loss o f primary teeth might be an early indication o f later coronary crowding; - carious and nonrestored deciduous teeth favored crowding in permanent dentition.Na longitudinalno praćenom uzorku sastavljenom od 51 ispitanika s koronarnom kompresijom i 25 ispitanika bez nje, u dobi od 11 do 13 godina, izvršena je analiza 6 standardnih gnatometrijskih varijabli, klasa po Angleu, stupnja razvoja apikalne baze gornje čeljusti, te ortodontskog i dentalnog statusa utvrđenog prije p o četka mijene zubi istih ispitanika. Svrha istraživanja bila je utvrditi relevantne čimbenike odgovorne za nastanak kompresije, te razotkriti rane znakove u razvoju kompresije. Rezultati istraživanja upućuju na slijedeće: - prosječne sagitalne i transverzalna dimenzija gornjeg zubnog luka signifikantno su niže u ispitanika s koronarnom kompresijom; - u obje grupe ispitanika najučestalija je klasa I, kod koronarne kompresije učestalija je klasa II/1, a u grupi bez kompresije klasa II/2 i klasa III; - stupanj razvoja apikalne baze najčešće je u skladu s razvojem zubnog luka;- kompresija u mliječnoj denticiji i veoma rani gubitak zubi potporne zone mogli bi se smatrati jednim od neposrednih uzroka kompresije u trajnoj denticiji; - kariozni odnosno nesanirani mliječni zubi pogoduju nastanku koronarne kompresije u trajnoj denticiji