Dentofacial Orthopedics
Farzin Heravi; Farzaneh laalalizadeh; Majid Ghanbarzadeh; Mahsa Ghorbani
Abstract
Aim: Maxillary transverse deficiencies pose significant challenges in orthodontics, necessitating effective treatment methods. Traditional approaches like rapid maxillary expansion (RME) have demonstrated limitations, especially in skeletally mature patients. Skeletal anchorage-based expansion methods, ...
Read More
Aim: Maxillary transverse deficiencies pose significant challenges in orthodontics, necessitating effective treatment methods. Traditional approaches like rapid maxillary expansion (RME) have demonstrated limitations, especially in skeletally mature patients. Skeletal anchorage-based expansion methods, such as miniscrew-assisted rapid maxillary expansion (MARME), have emerged as viable alternatives, offering advantages in terms of reduced dental side effects and improved stability.Report of a Case: A 14-year-old female presented with a severely constricted maxillary arch and intricate occlusal issues. This case report details the utilization of MARME as a treatment modality. Miniscrews were strategically placed by an orthodontist specialist, and the expansion process was carefully monitored. Post-treatment outcomes revealed a significant increase in midpalatal suture opening width, showcasing the effectiveness of MARME. Cone beam computed tomography images demonstrated a notable expansion of the transverse dimension, leading to improved occlusal relationships.Conclusion: Skeletal anchorage-based expansion, particularly MARME, stands out as a preferred method for addressing maxillary constriction in adolescents. This case serves as an illustration of the feasibility and distinctive advantages of Temporary Anchorage Devices (TADs) in the context of maxillary expansion for skeletally mature patients.
Victor de Miranda Ladewig; Renata Rodrigues Almeida-Pedrin; Leopoldino Capelozza-Filho; Karla de Souza Vasconcelos Coelho; Aline Ortyz Lyra; Ana Claudia de Castro Ferreira Conti
Abstract
Aim: The aim of this study was to evaluate and correlate the degree of maturation of the midpalatal suture (MPS) and zygomaticomaxillary suture (ZMS).Methods: The sample consisted of 160 orthodontic patients, aged between 11 and 20 years, 59 men and 101 women, from archives of private clinics. Patients ...
Read More
Aim: The aim of this study was to evaluate and correlate the degree of maturation of the midpalatal suture (MPS) and zygomaticomaxillary suture (ZMS).Methods: The sample consisted of 160 orthodontic patients, aged between 11 and 20 years, 59 men and 101 women, from archives of private clinics. Patients who presented Cone Beam Computed Tomography (CBCT) images in their initial orthodontic file were selected. CBCT images were exported to the InvivoDental5 program (Anatomage, San Jose, California), where axial MPS sections were used to evaluate the maturation stage, and cross-sectional sections in the coronal plane were used to evaluate the maturation of the ZMS. Spearman's correlation coefficient, McNemar-Bowker symmetry test and kappa agreement test with quadratic weighting were used to assess the correlation between the maturation stages of MPS and ZMS. Ordinal logistic regression analysis was used to verify the effect of age and gender on the classification. In all statistical tests, a significance level of 5% was adopted.Results: The MPS and ZMS displayed a significant correlation between their maturation stages. ZMS tended to present earlier maturation. Taking into account only the individuals from MPS stage C, an earlier ZMS stage was observed in 4.4% while a more advanced ZMS stage was observed in 24.37%. Among older individuals, this prevalence was 36.36%, thus 69.69% had an unfavorable prognosis for RME, following the proposed method.Conclusion: The correlation between the maturation stages of MPS and ZMS increases the reliability of the RME prognosis through individual morphological evaluation of sutures.