Comparison of Soft Tissue Profile between Subgroups of Skeletal Class III Malocclusion
Aim:The aim of this study is to compare the soft tissue profiles of patients with skeletal Class III malocclusions originated from; maxillary retrusion, mandibular protrusion and the combination of maxillary retrusion and mandibular protrusion.Material and Method:Lateral cephalomet-ric radiographs o...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Galenos Yayinevi
2010-04-01
|
| Series: | Turkish Journal of Orthodontics |
| Subjects: | |
| Online Access: |
http://www.turkjorthod.org/archives/archive-detail/article-preview/comparison-of-soft-tissue-profile-between-subgroup/53694
|
| _version_ | 1797767369871851520 |
|---|---|
| author | Gökmen Kurt Ayşe Tuba Altuğ Ataç Ayça Üstdal |
| author_facet | Gökmen Kurt Ayşe Tuba Altuğ Ataç Ayça Üstdal |
| author_sort | Gökmen Kurt |
| collection | DOAJ |
| description | Aim:The aim of this study is to compare the soft tissue profiles of patients with skeletal Class III malocclusions originated from; maxillary retrusion, mandibular protrusion and the combination of maxillary retrusion and mandibular protrusion.Material and Method:Lateral cephalomet-ric radiographs of 66 subjects were divided into three groups according to the Nperp-A and Nperp-Pg variables; Group 1-maxil-lary retrusion (n:23; mean age:13.44 years), Group 2-mandibular protrusion (n:22; mean age:13.31 years), and Group 3-combination of maxillary retrusion and mandibular protrusion (n:21; mean age:13.04 years). Besides the descriptive parameters of Class III subgroups, 13 soft tissue measurements (Gl-Sn, Sn-Me, ULL, St-Me, Sn-LLV, LLV-Me, interlabial distance, upper lip, lower lip, Chin, Gl-Sn/Sn-Me, Sn-St/St-Me and Sn-LLV/LLV-Me) were achieved for evaluating the possible differences between Class III subgroups. The differences between all Class III groups were evaluated by Analysis of Variance (ANO-VA) and Duncan test.Results:Chin measurement (distance between soft tissue pogonion to vertical reference plane) showed the highest value in Group 1 (5.14 ± 2,93) compared with Groups 2 (2.94 ± 2,15) and 3 (3.05 ± 1,98) (p<.01). Although the differences in Sn-Me and LLV-Me are insignificant among groups, these parameters representing the lower anterior soft tissue heights have the highest values in group 3. The rest of the parameters did not show statistical significance between the groups.Conclusion:Decreased lower lip and significantly increased soft tissue chin measurement were found in maxillary ret-rusion group. Both cephalometric and clinical examinations of soft tissues are needed for a proper diagnosis and treatment of orthognathic surgery cases. |
| first_indexed | 2024-03-12T20:37:45Z |
| format | Article |
| id | doaj.art-fddf7f4953734a50b0e96f14531f6a27 |
| institution | Directory Open Access Journal |
| issn | 2528-9659 2148-9505 |
| language | English |
| last_indexed | 2024-03-12T20:37:45Z |
| publishDate | 2010-04-01 |
| publisher | Galenos Yayinevi |
| record_format | Article |
| series | Turkish Journal of Orthodontics |
| spelling | doaj.art-fddf7f4953734a50b0e96f14531f6a272023-08-01T12:08:27ZengGalenos YayineviTurkish Journal of Orthodontics2528-96592148-95052010-04-01231304010.13076/1300-3550-23-1-3013049054Comparison of Soft Tissue Profile between Subgroups of Skeletal Class III MalocclusionGökmen Kurt0Ayşe Tuba Altuğ Ataç1Ayça Üstdal2 Erciyes, Faculty of Dentistry, Dept. Orthodontics, Kayseri, Turkey Ankara Univ. Faculty of Dentistry Dept. of Orthodontics, Ankara -Turkey Erciyes, Faculty of Dentistry, Dept. Orthodontics, Kayseri, Turkey Aim:The aim of this study is to compare the soft tissue profiles of patients with skeletal Class III malocclusions originated from; maxillary retrusion, mandibular protrusion and the combination of maxillary retrusion and mandibular protrusion.Material and Method:Lateral cephalomet-ric radiographs of 66 subjects were divided into three groups according to the Nperp-A and Nperp-Pg variables; Group 1-maxil-lary retrusion (n:23; mean age:13.44 years), Group 2-mandibular protrusion (n:22; mean age:13.31 years), and Group 3-combination of maxillary retrusion and mandibular protrusion (n:21; mean age:13.04 years). Besides the descriptive parameters of Class III subgroups, 13 soft tissue measurements (Gl-Sn, Sn-Me, ULL, St-Me, Sn-LLV, LLV-Me, interlabial distance, upper lip, lower lip, Chin, Gl-Sn/Sn-Me, Sn-St/St-Me and Sn-LLV/LLV-Me) were achieved for evaluating the possible differences between Class III subgroups. The differences between all Class III groups were evaluated by Analysis of Variance (ANO-VA) and Duncan test.Results:Chin measurement (distance between soft tissue pogonion to vertical reference plane) showed the highest value in Group 1 (5.14 ± 2,93) compared with Groups 2 (2.94 ± 2,15) and 3 (3.05 ± 1,98) (p<.01). Although the differences in Sn-Me and LLV-Me are insignificant among groups, these parameters representing the lower anterior soft tissue heights have the highest values in group 3. The rest of the parameters did not show statistical significance between the groups.Conclusion:Decreased lower lip and significantly increased soft tissue chin measurement were found in maxillary ret-rusion group. Both cephalometric and clinical examinations of soft tissues are needed for a proper diagnosis and treatment of orthognathic surgery cases. http://www.turkjorthod.org/archives/archive-detail/article-preview/comparison-of-soft-tissue-profile-between-subgroup/53694 facial profilesoft tissueclass iii |
| spellingShingle | Gökmen Kurt Ayşe Tuba Altuğ Ataç Ayça Üstdal Comparison of Soft Tissue Profile between Subgroups of Skeletal Class III Malocclusion Turkish Journal of Orthodontics facial profile soft tissue class iii |
| title | Comparison of Soft Tissue Profile between Subgroups of Skeletal Class III Malocclusion |
| title_full | Comparison of Soft Tissue Profile between Subgroups of Skeletal Class III Malocclusion |
| title_fullStr | Comparison of Soft Tissue Profile between Subgroups of Skeletal Class III Malocclusion |
| title_full_unstemmed | Comparison of Soft Tissue Profile between Subgroups of Skeletal Class III Malocclusion |
| title_short | Comparison of Soft Tissue Profile between Subgroups of Skeletal Class III Malocclusion |
| title_sort | comparison of soft tissue profile between subgroups of skeletal class iii malocclusion |
| topic | facial profile soft tissue class iii |
| url |
http://www.turkjorthod.org/archives/archive-detail/article-preview/comparison-of-soft-tissue-profile-between-subgroup/53694
|
| work_keys_str_mv | AT gokmenkurt comparisonofsofttissueprofilebetweensubgroupsofskeletalclassiiimalocclusion AT aysetubaaltugatac comparisonofsofttissueprofilebetweensubgroupsofskeletalclassiiimalocclusion AT aycaustdal comparisonofsofttissueprofilebetweensubgroupsofskeletalclassiiimalocclusion |