Comparative Analysis of Space Maintenance Using Transpalatal Arch and Nance Button

Martín-Vacas, Andrea; Caleya, Antonia M.; Gallardo-López, Nuria Esther

doi:10.17796/1053-4625-45.2.10

Cited by 3 publications

(1 citation statement)

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“…The mesial tooth gripping effect of the FSM arm design plays a crucial role in transmitting the chewing force to the mesial tooth over a wider surface, and it is important to note that previous studies have highlighted the potential for caries formation with FSMs [23,24]. Therefore, it is recommended that patients and parents be informed about the potential cariesforming effect associated with the arm design when it surrounds the mesial tooth.…”

Section: Discussionmentioning

confidence: 99%

Arm design of band and loop space maintainer affects its longevity: a patient-specific finite element study

2024

JOCPD

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Fixed space maintainers (FSMs) are commonly utilized in pediatric dentistry to prevent space loss following premature tooth extraction. Although previous studies have examined the survival rates and causes of FSM failure, the impact of arm design on failure has not been investigated. This study aimed to investigate the tensile and compressive stresses related to FSMs with different arm designs and evaluate the effect of arm designs on FSM failure. Cone beam computed tomography images of a child who experienced premature loss of a primary mandibular left second molar tooth were retrieved from our database, then processed and simulated using the Rhinoceros software. Finite element analysis was performed to evaluate the stresses on four distinct FSM arm designs under simulated chewing forces. The results showed that the straightarm FSM design exhibited the highest von Mises principal stress, while FSMs with curved arms and surrounding primary mandibular left first molar in the mesial area demonstrated the lowest von Mises stress accumulation. Intense stress accumulation on the distal surface of tooth 74 was observed in the test models due to the transmitted forces by the FSM. The maximum principal stresses accumulated at the base of the alveolar socket of the mesial root of tooth 36, while the minimum principal stresses were identified at the mesio-marginal area of the alveolar crest. The arm design played a crucial role in enabling the appliance to effectively withstand the stresses accumulating on the Space maintainer (SM) and orthodontic band. Bending the SM arms to match the surrounding profile with curvature increased the stress absorption capacity by increasing the arm length.

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Section: Discussionmentioning

confidence: 99%

Arm design of band and loop space maintainer affects its longevity: a patient-specific finite element study

2024

JOCPD

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Effects of Gender and Age in Mandibular Leeway Space for Taiwanese Children

Sun

Hsu

et al. 2021

Children

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Purpose: Leeway space is clinically crucial in pediatric dentistry because it is utilized to resolve tooth crowding and allow the first molars to drift mesially to establish a Class I molar relationship in the later stages of mixed dentition. This study investigated leeway space in the mixed dentition of Taiwanese children of different sexes and ages. Materials and Methods: The digital panoramic dental films of 182 lower arches of 119 boys and 63 girls aged 5–10 years were analyzed in this retrospective study. The mesiodistal crown widths of the primary canines and first and second molars and the permanent canines and first and second premolars were measured using medical imaging software. Differences in leeway space were statistically analyzed. Results: The average leeway space was 1.29 ± 1.48 mm on each side of the lower arch. The leeway space of children aged 5–6 years was significantly greater than that of children aged 7–8 years. No gender difference in crown width was discovered, except with regard to the primary first molar. Although no gender difference in leeway space was observed, permanent teeth affected leeway space more for girls than for boys. Conclusion: In Taiwanese children, although leeway space does not differ by sex, age affects leeway space. However, permanent tooth size has an influence on the leeway space of girls.

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A Modified Nickel Titanium Space Regainer Using an Open Coil Spring in a Pediatric Patient: A Case Report

Shan,

Swaminathan,

et al. 2024

Cureus

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This case report introduces a novel modification in the space-regaining process using a nickel-titanium (NiTi) open coil spring in a five-year-old male patient with early primary molar loss. The space deficiency, which led to occlusal discrepancies such as posterior crossbite, was efficiently managed using the NiTi wire and open coil spring, which is known for its superelasticity. The modification involved the use of a NiTi open coil spring, enabling effective space regaining and stabilization with band and loop space maintainers. This technique minimized patient discomfort and reduced treatment time. The report highlights the advantages of this modified approach in pediatric interceptive orthodontics, particularly in addressing space loss early and effectively.

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Comparative Analysis of Space Maintenance Using Transpalatal Arch and Nance Button

Cited by 3 publications

References 0 publications

Arm design of band and loop space maintainer affects its longevity: a patient-specific finite element study

Arm design of band and loop space maintainer affects its longevity: a patient-specific finite element study

Effects of Gender and Age in Mandibular Leeway Space for Taiwanese Children

A Modified Nickel Titanium Space Regainer Using an Open Coil Spring in a Pediatric Patient: A Case Report

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