| Autor: |
Renata Rodrigues de Almeida-Pedrin, Honório Tóttoli Segundo, Marcio Rodrigues de Almeida, Victor França Didier, Danilo Pinelli Valarelli, Ana Cláudia de Castro Ferreira Conti |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
Journal of Health Sciences. 22:204-209 |
| ISSN: |
2447-8938 |
| DOI: |
10.17921/2447-8938.2020v22n4p204-209 |
| Popis: |
The literature is scarce on the intermaxillary elastics impacts on soft tissue during the treatment of Class II malocclusion The purpose of the present study was to compare the soft tissue changes after the treatment of Class II malocclusion using intermaxillary elastics with and without the premolars extraction. The sample consisted of 41 patients Class II Division 1 malocclusion with bilateral molar relationship of at least ½ cusp, divided into two groups. Group 1: 21 patients (mean age 18.97 years) treated for a mean period of 3.15 years with intermaxillary elastics without dental extractions. Group 2: 20 patients (mean age,17.40 years) treated for a mean period of 3.07 years with intermaxillary elastics and extraction of two maxillary premolars. Lateral cephalometric radiographs were used to measure the soft tissue and incisor variations before and after orthodontic treatment. Dolphin Imaging Premium software was used for radiographic analysis. Groups 1 and 2 were highly similar concerning age, initial overjet, molar relationship, treatment time, and initial cephalometric measurements. Statistically significant differences between both groups were observed (P |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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