Treatment effects of R-appliance and Anterior Inclined Bite Plate in Class II, Division I malocclusion
OBJECTIVES: The purpose of this study was to compare the effects of a differently designed functional appliance (R-appliance) and the Anterior Inclined Bite Plate (AIBP) in Class II Division I (Cl II Div I) cases. MATERIAL AND METHODS: Fifty patients (28 girls, 22 boys) were chosen for the study: 25...
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| Format: | Article |
| Language: | English |
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University of São Paulo
2011-12-01
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| Series: | Journal of Applied Oral Science |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572011000600015 |
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| author | Rahman Showkatbakhsh Shahin Emami Meybodi Abdolreza Jamilian Seyyed Amir Reza Fatahi Meybodi Elham Morshedi Meybodi |
| author_facet | Rahman Showkatbakhsh Shahin Emami Meybodi Abdolreza Jamilian Seyyed Amir Reza Fatahi Meybodi Elham Morshedi Meybodi |
| author_sort | Rahman Showkatbakhsh |
| collection | DOAJ |
| description | OBJECTIVES: The purpose of this study was to compare the effects of a differently designed functional appliance (R-appliance) and the Anterior Inclined Bite Plate (AIBP) in Class II Division I (Cl II Div I) cases. MATERIAL AND METHODS: Fifty patients (28 girls, 22 boys) were chosen for the study: 25 patients (13 girls, 12 boys) with mean age of 10.4±0.8 years were treated with R-appliance for 11±2 months, the other 25 patients (15 girls, 10 boys) with mean age of 9±1.2 years were treated with AIBP for 10±2 months. All patients had Cl II Div I malocclusion due to mandibular deficiency. Lateral cephalograms were analyzed at the beginning (T1, T 1) and end of the study (T2, T 2). RESULTS: Paired T-test showed that SNB had a significant increase in both groups. The same test revealed that IMPA was reduced in R-appliance for 3.1±4.7 (p<0.01), but it was increased for 0.1±5.1 (p<0.9) in AIBP group. T-test showed that the inter-group difference of IMPA was statistically significant (p<0.05). SNA showed an increase in both groups (p<0.9). Ar-B and Ar-Pog showed an increase in both groups and the differences between them were statistically significant. CONCLUSIONS: Mandibular advancement was achieved in both groups, but R-appliance achieved this result without lingual tipping of lower incisors. |
| first_indexed | 2024-12-13T13:59:24Z |
| format | Article |
| id | doaj.art-5836a36182a6415783843c442106e769 |
| institution | Directory Open Access Journal |
| issn | 1678-7757 1678-7765 |
| language | English |
| last_indexed | 2024-12-13T13:59:24Z |
| publishDate | 2011-12-01 |
| publisher | University of São Paulo |
| record_format | Article |
| series | Journal of Applied Oral Science |
| spelling | doaj.art-5836a36182a6415783843c442106e7692022-12-21T23:42:47ZengUniversity of São PauloJournal of Applied Oral Science1678-77571678-77652011-12-0119663463810.1590/S1678-77572011000600015Treatment effects of R-appliance and Anterior Inclined Bite Plate in Class II, Division I malocclusionRahman ShowkatbakhshShahin Emami MeybodiAbdolreza JamilianSeyyed Amir Reza Fatahi MeybodiElham Morshedi MeybodiOBJECTIVES: The purpose of this study was to compare the effects of a differently designed functional appliance (R-appliance) and the Anterior Inclined Bite Plate (AIBP) in Class II Division I (Cl II Div I) cases. MATERIAL AND METHODS: Fifty patients (28 girls, 22 boys) were chosen for the study: 25 patients (13 girls, 12 boys) with mean age of 10.4±0.8 years were treated with R-appliance for 11±2 months, the other 25 patients (15 girls, 10 boys) with mean age of 9±1.2 years were treated with AIBP for 10±2 months. All patients had Cl II Div I malocclusion due to mandibular deficiency. Lateral cephalograms were analyzed at the beginning (T1, T 1) and end of the study (T2, T 2). RESULTS: Paired T-test showed that SNB had a significant increase in both groups. The same test revealed that IMPA was reduced in R-appliance for 3.1±4.7 (p<0.01), but it was increased for 0.1±5.1 (p<0.9) in AIBP group. T-test showed that the inter-group difference of IMPA was statistically significant (p<0.05). SNA showed an increase in both groups (p<0.9). Ar-B and Ar-Pog showed an increase in both groups and the differences between them were statistically significant. CONCLUSIONS: Mandibular advancement was achieved in both groups, but R-appliance achieved this result without lingual tipping of lower incisors.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572011000600015Functional orthodontic appliancesRemovable orthodontic appliancesAngle Class II malocclusionGrowth |
| spellingShingle | Rahman Showkatbakhsh Shahin Emami Meybodi Abdolreza Jamilian Seyyed Amir Reza Fatahi Meybodi Elham Morshedi Meybodi Treatment effects of R-appliance and Anterior Inclined Bite Plate in Class II, Division I malocclusion Journal of Applied Oral Science Functional orthodontic appliances Removable orthodontic appliances Angle Class II malocclusion Growth |
| title | Treatment effects of R-appliance and Anterior Inclined Bite Plate in Class II, Division I malocclusion |
| title_full | Treatment effects of R-appliance and Anterior Inclined Bite Plate in Class II, Division I malocclusion |
| title_fullStr | Treatment effects of R-appliance and Anterior Inclined Bite Plate in Class II, Division I malocclusion |
| title_full_unstemmed | Treatment effects of R-appliance and Anterior Inclined Bite Plate in Class II, Division I malocclusion |
| title_short | Treatment effects of R-appliance and Anterior Inclined Bite Plate in Class II, Division I malocclusion |
| title_sort | treatment effects of r appliance and anterior inclined bite plate in class ii division i malocclusion |
| topic | Functional orthodontic appliances Removable orthodontic appliances Angle Class II malocclusion Growth |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572011000600015 |
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