IADR Abstract Archives
Dentofacial Differences between Syrian and Hungarian Adolescents with Class-II/1 Malocclusion
Objectives: Due to the trends of recent migration, particularly in Europe, for the correct treatments updated studies are required to compare the dentofacial characteristics of the new migrants and the population of European descent. Therefore, this study aimed to assess the differences found in dentofacial structure between Syrian and Hungarian adolescents with the most common malocclusion (Class-II/1 malocclusion).
Methods: Samples consisted of 86 patients: (1) 43 Syrian patients [age:14.3y±1.5, (mean±S.D.)], and (2) 43 Hungarian patients (age:14.3y±1.9), including 24 females and 19 males in each ethnic group. The evaluation was based on lateral cephalometric radiographs and orthodontic models. McNamara cephalometric analysis was performed using special orthodontic software (OnyxCeph3™), and orthodontic model measurements were undertaken using a universal digital caliper. Data were analyzed by SPSS software, statistics were performed with two-sample t-test, and the significance levels were established at 0.001, 0.01 and 0.05.
Results: Comparisons between Syrian (Syr) and Hungarian (Hun) groups revealed that the Syrian group had steeper mandibular planes [Syr:29.8°±5.6, Hun:23.9°±5.2, (mean±S.D.), P<0.001], more proclined mandibular incisors (Syr:4.8mm±1.9, Hun:1.5mm±2.3, P<0.001), and larger Bolton's anterior tooth-size ratios (Syr:80.4%±3.0, Hun:78.6%±2.4, P<0.01). The Hungarian group had more protruded maxillas (Syr:0.0mm±2.3, Hun:1.4mm±2.7, P=0.01), and shorter mandibles (Syr:108.0mm±5.6, Hun:105.4mm±6.2, P<0.05). Both examined groups had decreases in maxillary intermolar widths compared to the normal; however, there was no significant difference between the two groups (Syr:33.6mm±2.2, Hun:32.9mm±2.8, P>0.05).
Conclusions: Based on our findings, the main cause of Class-II/1 malocclusion in the examined groups was different; it reflected a horizontal problem in Hungarians whereas it was a feature of a vertical problem in Syrians. Therefore, the results of this study have significant clinical implications regarding treatment decisions to establish a long-term stability of the results for Syrian and Hungarian adolescents.
This study was partially supported by the grant EFOP-3.6.3-VEKOP-16-2017 00009.
Methods: Samples consisted of 86 patients: (1) 43 Syrian patients [age:14.3y±1.5, (mean±S.D.)], and (2) 43 Hungarian patients (age:14.3y±1.9), including 24 females and 19 males in each ethnic group. The evaluation was based on lateral cephalometric radiographs and orthodontic models. McNamara cephalometric analysis was performed using special orthodontic software (OnyxCeph3™), and orthodontic model measurements were undertaken using a universal digital caliper. Data were analyzed by SPSS software, statistics were performed with two-sample t-test, and the significance levels were established at 0.001, 0.01 and 0.05.
Results: Comparisons between Syrian (Syr) and Hungarian (Hun) groups revealed that the Syrian group had steeper mandibular planes [Syr:29.8°±5.6, Hun:23.9°±5.2, (mean±S.D.), P<0.001], more proclined mandibular incisors (Syr:4.8mm±1.9, Hun:1.5mm±2.3, P<0.001), and larger Bolton's anterior tooth-size ratios (Syr:80.4%±3.0, Hun:78.6%±2.4, P<0.01). The Hungarian group had more protruded maxillas (Syr:0.0mm±2.3, Hun:1.4mm±2.7, P=0.01), and shorter mandibles (Syr:108.0mm±5.6, Hun:105.4mm±6.2, P<0.05). Both examined groups had decreases in maxillary intermolar widths compared to the normal; however, there was no significant difference between the two groups (Syr:33.6mm±2.2, Hun:32.9mm±2.8, P>0.05).
Conclusions: Based on our findings, the main cause of Class-II/1 malocclusion in the examined groups was different; it reflected a horizontal problem in Hungarians whereas it was a feature of a vertical problem in Syrians. Therefore, the results of this study have significant clinical implications regarding treatment decisions to establish a long-term stability of the results for Syrian and Hungarian adolescents.
This study was partially supported by the grant EFOP-3.6.3-VEKOP-16-2017 00009.