| Autor: |
Tahereh Hosseinzadeh-Nik, Armin Eftekhari, Atefe Saffar Shahroudi, Mahammad Javad Kharrazifard |
| Jazyk: |
angličtina |
| Rok vydání: |
2016 |
| Předmět: |
|
| Zdroj: |
Frontiers in Dentistry, Vol 13, Iss 3 (2016) |
| Druh dokumentu: |
article |
| ISSN: |
2676-296X |
| Popis: |
Objectives: This study was designed to assess the changes of the mandible of patients who underwent orthodontic treatment with or without extraction of four premolars. Materials and Methods: Eighteen Class I bimaxillary protrusion patients treated with extraction of four first premolars and retraction of anterior teeth and 18 Class I non-extraction patients with a mean age of 16.38±0.4 years were selected. Cephalometric analysis was performed before and after treatment. Twenty-four variables for analyzing the hard and soft tissues of the mandible were compared between the two groups. Repeated measures ANOVA was used for the comparison of the two groups fallowed by paired t-test. The relationship between the soft and hard tissue variables was studied using the Pearson’s correlation coefficient. Results: In both groups, the mean value of angular measurements related to B point and Pogonion (Pog) decreased with treatment (P |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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