Izlaganje sa skupa
Evaluation of Some Lateral Cephalometric Methods for Determination of Occlusal Plane Inclination
Asja Čelebić
; Stomatološki fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Hrvoje Brkić
; Stomatološki fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Zvonimir Kaić
; Stomatološki fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Melita Valentić-Peruzović
; Stomatološki fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Denis Vojvodić
; Stomatološki fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Sažetak
The objective o f this study was to test the value o f some lateral cephalometric methods in the determination o f occlusal plane inclination in edentulous patients. Sixty lateral skull radiograms were
taken in male subjects with no history o f orthodontic treatment, with Angle class I occlusion and 28-32 teeth in the jaws. The lengths o f the ANS-HN, ANS-PNS, HN-1P and N-S plane, and the angle between the above mentioned planes and the occlusal plane were measured. Descriptive statistics and correlation analysis were carried out. Results revealed no correlation between the length o f Cook’s plane (ANS-HN) and the angle between Cook’s plane and the occlusal plane (r = -0.0575; p = 0.331); between the length o f the H IP plane and the angle between the HIP and the occlusal plane (r — 0.089; p = 0.249); between the ANSPNS plane and the angle between the ANS-PNS and the occlusal plane (r = - 0.0234; p = 0.036); and between the N -S plane and the angle between the N-S and the occlusal plane ( r = - 0.2343; p = 0.036). The HN-IP plane was not parallel to the occlusal one (x = 8.3 +1-3.56, range 2-17). According to our results, Sloane’s and Cook’s theory and Rich’s theory should be rejected. Also, the length o f the maxillary or the cranial base had no strong correlation with the angle between these planes and the occlusal plane. So, the length o f the ANS-HN, HN-IP, ANS-PNS and N-S could not be used to predict the occlusal plane inclination. Accordingly, other methods rather than these methods evaluated in this study should be used for the occlusal plane determination in edentulous patients.
Ključne riječi
occlusal plane; cephalometrics
Hrčak ID:
99264
URI
Datum izdavanja:
15.3.1994.
Posjeta: 1.376 *