Glabellar vertical line as a reference goal for anteroposterior maxillary position
ABSTRACT Objective: The aim of this study was to evaluate the use of glabellar vertical line (GVL) as the anteroposterior maxillary position goal. Methods: A cross-sectional study was conducted assessing 129 participants (20.21 ± 1.99 years): 67 women (20.16 ± 1.99 years), and 62 males (20.26 ± 2...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Dental Press Editora
|
| Series: | Dental Press Journal of Orthodontics |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512019000300045&lng=en&tlng=en |
| _version_ | 1818211014846447616 |
|---|---|
| author | Marcos J. Carruitero Ximena M. Ambrosio-Vallejos Carlos Flores-Mir |
| author_facet | Marcos J. Carruitero Ximena M. Ambrosio-Vallejos Carlos Flores-Mir |
| author_sort | Marcos J. Carruitero |
| collection | DOAJ |
| description | ABSTRACT Objective: The aim of this study was to evaluate the use of glabellar vertical line (GVL) as the anteroposterior maxillary position goal. Methods: A cross-sectional study was conducted assessing 129 participants (20.21 ± 1.99 years): 67 women (20.16 ± 1.99 years), and 62 males (20.26 ± 2.06 years). The facial profile photographs were taken with a posed smile in natural head position. The linear distance from the most facial convexity of the upper central incisor (FA) to the goal anterior-limit line (GALL) and also from FA to GVL were measured and compared. Wilcoxon signed-ranks test was applied. To determine the correlation between the distances, Spearman’s correlation coefficient was used. Simple and multiple linear regression were also performed. Results: The GALL-GVL separation was 0.54 ± 1.14 mm (95%CI: 0.34-0.74). A strong correlation between FA-GALL and FA-GVL distances (Spearman’s rho=0.983 [95%CI: 0.976-0.988], p< 0.01) was identified. The FA-GVL distance explains almost all the total variation of FA-GALL (R2=95.84%, p< 0.01). The FA-GALL distance can be predicted by using the formula: FA-GALL=0.5+0.9*(FA-GVL). Conclusion: These findings suggest that GVL could be used as an easier-to-use treatment goal to determine the maxillary anteroposterior position, compared to GALL, to improve facial harmony profile goals in cases where the maxillary incisors are properly positioned anteroposteriorly. |
| first_indexed | 2024-12-12T05:25:46Z |
| format | Article |
| id | doaj.art-7db230ac97f84d11824a77b958394317 |
| institution | Directory Open Access Journal |
| issn | 2177-6709 |
| language | English |
| last_indexed | 2024-12-12T05:25:46Z |
| publisher | Dental Press Editora |
| record_format | Article |
| series | Dental Press Journal of Orthodontics |
| spelling | doaj.art-7db230ac97f84d11824a77b9583943172022-12-22T00:36:27ZengDental Press EditoraDental Press Journal of Orthodontics2177-670924345.e145.e510.1590/2177-6709.24.3.45.e1-5.onlS2176-94512019000300045Glabellar vertical line as a reference goal for anteroposterior maxillary positionMarcos J. CarruiteroXimena M. Ambrosio-VallejosCarlos Flores-MirABSTRACT Objective: The aim of this study was to evaluate the use of glabellar vertical line (GVL) as the anteroposterior maxillary position goal. Methods: A cross-sectional study was conducted assessing 129 participants (20.21 ± 1.99 years): 67 women (20.16 ± 1.99 years), and 62 males (20.26 ± 2.06 years). The facial profile photographs were taken with a posed smile in natural head position. The linear distance from the most facial convexity of the upper central incisor (FA) to the goal anterior-limit line (GALL) and also from FA to GVL were measured and compared. Wilcoxon signed-ranks test was applied. To determine the correlation between the distances, Spearman’s correlation coefficient was used. Simple and multiple linear regression were also performed. Results: The GALL-GVL separation was 0.54 ± 1.14 mm (95%CI: 0.34-0.74). A strong correlation between FA-GALL and FA-GVL distances (Spearman’s rho=0.983 [95%CI: 0.976-0.988], p< 0.01) was identified. The FA-GVL distance explains almost all the total variation of FA-GALL (R2=95.84%, p< 0.01). The FA-GALL distance can be predicted by using the formula: FA-GALL=0.5+0.9*(FA-GVL). Conclusion: These findings suggest that GVL could be used as an easier-to-use treatment goal to determine the maxillary anteroposterior position, compared to GALL, to improve facial harmony profile goals in cases where the maxillary incisors are properly positioned anteroposteriorly.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512019000300045&lng=en&tlng=enFacial profileDiagnosisOrthodonticsOrthognathic surgery |
| spellingShingle | Marcos J. Carruitero Ximena M. Ambrosio-Vallejos Carlos Flores-Mir Glabellar vertical line as a reference goal for anteroposterior maxillary position Dental Press Journal of Orthodontics Facial profile Diagnosis Orthodontics Orthognathic surgery |
| title | Glabellar vertical line as a reference goal for anteroposterior maxillary position |
| title_full | Glabellar vertical line as a reference goal for anteroposterior maxillary position |
| title_fullStr | Glabellar vertical line as a reference goal for anteroposterior maxillary position |
| title_full_unstemmed | Glabellar vertical line as a reference goal for anteroposterior maxillary position |
| title_short | Glabellar vertical line as a reference goal for anteroposterior maxillary position |
| title_sort | glabellar vertical line as a reference goal for anteroposterior maxillary position |
| topic | Facial profile Diagnosis Orthodontics Orthognathic surgery |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512019000300045&lng=en&tlng=en |
| work_keys_str_mv | AT marcosjcarruitero glabellarverticallineasareferencegoalforanteroposteriormaxillaryposition AT ximenamambrosiovallejos glabellarverticallineasareferencegoalforanteroposteriormaxillaryposition AT carlosfloresmir glabellarverticallineasareferencegoalforanteroposteriormaxillaryposition |