Cephalometric comparison of mandibular growth in Brazilian children with Class II malocclusion and normal occlusion during the growth stages determined by the cervical vertebrae maturation
ABSTRACT Objective: This study compared mandibular growth in children, aged 7 to 12 years, with Class II malocclusion and normal occlusion, between the following stages of cervical vertebrae maturation: initiation (I), acceleration (A), transition (T). Material and Methods: A total of 148 lateral...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Dental Press Editora
2023-11-01
|
| Series: | Dental Press Journal of Orthodontics |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512023000500304&tlng=en |
| _version_ | 1797635123389136896 |
|---|---|
| author | Fabiane Louly Bapstista Santos SILVA Ana Cláudia de Castro Ferreira CONTI Thais Maria Freire FERNANDES Priscila Pinto Brandão de ARAÚJO Arnaldo PINZAN |
| author_facet | Fabiane Louly Bapstista Santos SILVA Ana Cláudia de Castro Ferreira CONTI Thais Maria Freire FERNANDES Priscila Pinto Brandão de ARAÚJO Arnaldo PINZAN |
| author_sort | Fabiane Louly Bapstista Santos SILVA |
| collection | DOAJ |
| description | ABSTRACT Objective: This study compared mandibular growth in children, aged 7 to 12 years, with Class II malocclusion and normal occlusion, between the following stages of cervical vertebrae maturation: initiation (I), acceleration (A), transition (T). Material and Methods: A total of 148 lateral cephalograms (78 males, 70 females) of Class II malocclusion patients, and 60 lateral cephalograms (30 males, 30 females) of normal occlusion patients were included. The following linear cephalometric measurements were performed: Co-Gn (effective mandibular length), Co-Go (ramus height), and Go-Gn (length of mandibular body). Mean values of increments between stages (I-A, A-T, I-T) were obtained for each group and gender. Results were compared using the Student t-test, and a significance level of 0.05% was adopted. Results: Females group: A-T interval presented a greater increment in Co-Go in the Class II group, which was not significant for the I-T interval, with numerically smaller increments in Co-Gn and Go-Gn, without statistical significance. Males group: intervals I-A, A-T and I-T showed numerically smaller growth increments in the Class II group, with statistical significance for Co-Gn in I-A (p=0.001) and I-T (p=0.003). Comparing genders of the Class II group, Co-Go was higher in males (p=0.002) and I-T interval (p=0.031). In the Normal Occlusion group, the male gender had the greatest Co-Gn (p=0.038) for the I-A interval. In A-T and I-T, Co-Go in males was higher, with statistical significance (p=0.000 and p=0.002, respectively). Conclusion: Growth phenomenon affects the mandibular dimensions regardless of the character of the malocclusion, with a tendency to be smaller in the presence of Class II malocclusion. |
| first_indexed | 2024-03-11T12:16:53Z |
| format | Article |
| id | doaj.art-9b87a3b0a5404387954f2156305ac0fa |
| institution | Directory Open Access Journal |
| issn | 2177-6709 |
| language | English |
| last_indexed | 2024-03-11T12:16:53Z |
| publishDate | 2023-11-01 |
| publisher | Dental Press Editora |
| record_format | Article |
| series | Dental Press Journal of Orthodontics |
| spelling | doaj.art-9b87a3b0a5404387954f2156305ac0fa2023-11-07T07:45:00ZengDental Press EditoraDental Press Journal of Orthodontics2177-67092023-11-0128510.1590/2177-6709.28.5.e232358.oarCephalometric comparison of mandibular growth in Brazilian children with Class II malocclusion and normal occlusion during the growth stages determined by the cervical vertebrae maturationFabiane Louly Bapstista Santos SILVAhttps://orcid.org/0000-0003-0837-9521Ana Cláudia de Castro Ferreira CONTIhttps://orcid.org/0000-0001-9658-1652Thais Maria Freire FERNANDEShttps://orcid.org/0000-0002-4368-8568Priscila Pinto Brandão de ARAÚJOhttps://orcid.org/0000-0002-5514-0911Arnaldo PINZANhttps://orcid.org/0000-0002-7195-5299ABSTRACT Objective: This study compared mandibular growth in children, aged 7 to 12 years, with Class II malocclusion and normal occlusion, between the following stages of cervical vertebrae maturation: initiation (I), acceleration (A), transition (T). Material and Methods: A total of 148 lateral cephalograms (78 males, 70 females) of Class II malocclusion patients, and 60 lateral cephalograms (30 males, 30 females) of normal occlusion patients were included. The following linear cephalometric measurements were performed: Co-Gn (effective mandibular length), Co-Go (ramus height), and Go-Gn (length of mandibular body). Mean values of increments between stages (I-A, A-T, I-T) were obtained for each group and gender. Results were compared using the Student t-test, and a significance level of 0.05% was adopted. Results: Females group: A-T interval presented a greater increment in Co-Go in the Class II group, which was not significant for the I-T interval, with numerically smaller increments in Co-Gn and Go-Gn, without statistical significance. Males group: intervals I-A, A-T and I-T showed numerically smaller growth increments in the Class II group, with statistical significance for Co-Gn in I-A (p=0.001) and I-T (p=0.003). Comparing genders of the Class II group, Co-Go was higher in males (p=0.002) and I-T interval (p=0.031). In the Normal Occlusion group, the male gender had the greatest Co-Gn (p=0.038) for the I-A interval. In A-T and I-T, Co-Go in males was higher, with statistical significance (p=0.000 and p=0.002, respectively). Conclusion: Growth phenomenon affects the mandibular dimensions regardless of the character of the malocclusion, with a tendency to be smaller in the presence of Class II malocclusion.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512023000500304&tlng=enGrowth and developmentAngle Class IICervical vertebrae |
| spellingShingle | Fabiane Louly Bapstista Santos SILVA Ana Cláudia de Castro Ferreira CONTI Thais Maria Freire FERNANDES Priscila Pinto Brandão de ARAÚJO Arnaldo PINZAN Cephalometric comparison of mandibular growth in Brazilian children with Class II malocclusion and normal occlusion during the growth stages determined by the cervical vertebrae maturation Dental Press Journal of Orthodontics Growth and development Angle Class II Cervical vertebrae |
| title | Cephalometric comparison of mandibular growth in Brazilian children with Class II malocclusion and normal occlusion during the growth stages determined by the cervical vertebrae maturation |
| title_full | Cephalometric comparison of mandibular growth in Brazilian children with Class II malocclusion and normal occlusion during the growth stages determined by the cervical vertebrae maturation |
| title_fullStr | Cephalometric comparison of mandibular growth in Brazilian children with Class II malocclusion and normal occlusion during the growth stages determined by the cervical vertebrae maturation |
| title_full_unstemmed | Cephalometric comparison of mandibular growth in Brazilian children with Class II malocclusion and normal occlusion during the growth stages determined by the cervical vertebrae maturation |
| title_short | Cephalometric comparison of mandibular growth in Brazilian children with Class II malocclusion and normal occlusion during the growth stages determined by the cervical vertebrae maturation |
| title_sort | cephalometric comparison of mandibular growth in brazilian children with class ii malocclusion and normal occlusion during the growth stages determined by the cervical vertebrae maturation |
| topic | Growth and development Angle Class II Cervical vertebrae |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512023000500304&tlng=en |
| work_keys_str_mv | AT fabianeloulybapstistasantossilva cephalometriccomparisonofmandibulargrowthinbrazilianchildrenwithclassiimalocclusionandnormalocclusionduringthegrowthstagesdeterminedbythecervicalvertebraematuration AT anaclaudiadecastroferreiraconti cephalometriccomparisonofmandibulargrowthinbrazilianchildrenwithclassiimalocclusionandnormalocclusionduringthegrowthstagesdeterminedbythecervicalvertebraematuration AT thaismariafreirefernandes cephalometriccomparisonofmandibulargrowthinbrazilianchildrenwithclassiimalocclusionandnormalocclusionduringthegrowthstagesdeterminedbythecervicalvertebraematuration AT priscilapintobrandaodearaujo cephalometriccomparisonofmandibulargrowthinbrazilianchildrenwithclassiimalocclusionandnormalocclusionduringthegrowthstagesdeterminedbythecervicalvertebraematuration AT arnaldopinzan cephalometriccomparisonofmandibulargrowthinbrazilianchildrenwithclassiimalocclusionandnormalocclusionduringthegrowthstagesdeterminedbythecervicalvertebraematuration |