Fabrication and Evaluation of a Noncompliant Molar Distalizing Appliance: Bonded Molar Distalizer
Objective: Attempts to treat class II malocclusions without extraction in non-compliant patients have led to utilization of intraoral molar distalizing appliances. The purpose of this study was to investigate dental and skeletal effects of Bonded Molar Distalizer (BMD) which is a simple molar distal...
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| Format: | Article |
| Language: | English |
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Tehran University of Medical Sciences
2011-09-01
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| Series: | Frontiers in Dentistry |
| Subjects: | |
| Online Access: | https://jdt.tums.ac.ir/index.php/jdt/article/view/251 |
| _version_ | 1828270353987665920 |
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| author | A. Sodagar M. S. Ahmad Akhoundi A. Rafighii S. Arab |
| author_facet | A. Sodagar M. S. Ahmad Akhoundi A. Rafighii S. Arab |
| author_sort | A. Sodagar |
| collection | DOAJ |
| description | Objective: Attempts to treat class II malocclusions without extraction in non-compliant
patients have led to utilization of intraoral molar distalizing appliances. The purpose of
this study was to investigate dental and skeletal effects of Bonded Molar Distalizer
(BMD) which is a simple molar distalizing appliance.
Materials and Methods: Sixteen patients (12 girls, four boys) with bilateral half-cusp
class II molar relationship, erupted permanent second molars and normal or vertical
growth pattern were selected for bilateral distalization of maxillary molars via BMD. The
screws were activated every other day, alternately. Lateral cephalograms and study models
were obtained before treatment and after 11 weeks activation of the appliance.
Results: Significant amounts of molar distalization, molar distal tipping and anchorage
loss were observed. The mean maxillary first molar distal movement was 1.22±0.936 mm
with a distal tipping of 2.97±3.74 degrees in 11 weeks. The rate of distal movement was
0.48 mm per month. Reciprocal mesial movement of the first premolars was 2.26±1.12
mm with a mesial tipping of 4.25±3.12 degrees. Maxillary incisors moved 3.55±1.46 mm
and tipped 9.87±5.03 degrees mesially. Lower anterior face height (LAFH) decreased
1.28±1.36 mm.
Conclusion: BMD is appropriate for distalizing maxillary molars, especially in patients
with critical LAFH, although significant amounts of anchorage loss occur using this appliance. |
| first_indexed | 2024-04-13T05:41:59Z |
| format | Article |
| id | doaj.art-2c2a3d06e37e413eaab57d009de5ef39 |
| institution | Directory Open Access Journal |
| issn | 2676-296X |
| language | English |
| last_indexed | 2024-04-13T05:41:59Z |
| publishDate | 2011-09-01 |
| publisher | Tehran University of Medical Sciences |
| record_format | Article |
| series | Frontiers in Dentistry |
| spelling | doaj.art-2c2a3d06e37e413eaab57d009de5ef392022-12-22T03:00:04ZengTehran University of Medical SciencesFrontiers in Dentistry2676-296X2011-09-0183Fabrication and Evaluation of a Noncompliant Molar Distalizing Appliance: Bonded Molar Distalizer A. Sodagar0 M. S. Ahmad Akhoundi1 A. Rafighii2 S. Arab3Associate Professor, Department of Orthodontics, Faculty of Dentistry, Tehran University of Medical Associate Professor, Dental Research Center, Department of Orthodontics, Faculty of Dentistry, TehraAssistant Professor, Department of Orthodontics, Faculty of Dentistry, Tabriz University of Medical Assistant Professor, Department of Orthodontics, Faculty of Dentistry, Qazvin University of Medical Objective: Attempts to treat class II malocclusions without extraction in non-compliant patients have led to utilization of intraoral molar distalizing appliances. The purpose of this study was to investigate dental and skeletal effects of Bonded Molar Distalizer (BMD) which is a simple molar distalizing appliance. Materials and Methods: Sixteen patients (12 girls, four boys) with bilateral half-cusp class II molar relationship, erupted permanent second molars and normal or vertical growth pattern were selected for bilateral distalization of maxillary molars via BMD. The screws were activated every other day, alternately. Lateral cephalograms and study models were obtained before treatment and after 11 weeks activation of the appliance. Results: Significant amounts of molar distalization, molar distal tipping and anchorage loss were observed. The mean maxillary first molar distal movement was 1.22±0.936 mm with a distal tipping of 2.97±3.74 degrees in 11 weeks. The rate of distal movement was 0.48 mm per month. Reciprocal mesial movement of the first premolars was 2.26±1.12 mm with a mesial tipping of 4.25±3.12 degrees. Maxillary incisors moved 3.55±1.46 mm and tipped 9.87±5.03 degrees mesially. Lower anterior face height (LAFH) decreased 1.28±1.36 mm. Conclusion: BMD is appropriate for distalizing maxillary molars, especially in patients with critical LAFH, although significant amounts of anchorage loss occur using this appliance.https://jdt.tums.ac.ir/index.php/jdt/article/view/251Malocclusion Angle Class IIPatient Non-ComplianceScrewBonded Appliance |
| spellingShingle | A. Sodagar M. S. Ahmad Akhoundi A. Rafighii S. Arab Fabrication and Evaluation of a Noncompliant Molar Distalizing Appliance: Bonded Molar Distalizer Frontiers in Dentistry Malocclusion Angle Class II Patient Non-Compliance Screw Bonded Appliance |
| title | Fabrication and Evaluation of a Noncompliant Molar Distalizing Appliance: Bonded Molar Distalizer |
| title_full | Fabrication and Evaluation of a Noncompliant Molar Distalizing Appliance: Bonded Molar Distalizer |
| title_fullStr | Fabrication and Evaluation of a Noncompliant Molar Distalizing Appliance: Bonded Molar Distalizer |
| title_full_unstemmed | Fabrication and Evaluation of a Noncompliant Molar Distalizing Appliance: Bonded Molar Distalizer |
| title_short | Fabrication and Evaluation of a Noncompliant Molar Distalizing Appliance: Bonded Molar Distalizer |
| title_sort | fabrication and evaluation of a noncompliant molar distalizing appliance bonded molar distalizer |
| topic | Malocclusion Angle Class II Patient Non-Compliance Screw Bonded Appliance |
| url | https://jdt.tums.ac.ir/index.php/jdt/article/view/251 |
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