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Cephalometric evaluation in different phases of Jasper jumper therapy.
Am J Orthod Dentofacial Orthop. 2011 Aug; 140(2):e77-84.AJ

Abstract

INTRODUCTION

The aim of this study was to evaluate the dentoskeletal and soft-tissue effects of Class II malocclusion treatment with the Jasper jumper followed by Class II elastics at the different stages of therapy.

METHODS

The sample comprised 24 patients of both sexes (11 boys, 13 girls) with an initial age of 12.58 years, treated for a mean period of 2.15 years. Four lateral cephalograms were obtained of each patient in these stages of orthodontic treatment: at pretreatment (T1), after leveling and alignment (T2), after the use of the Jasper jumper appliance and before the use of Class II intermaxillary elastics (T3), and at posttreatment (T4). Thus, 3 treatment phases could be evaluated: leveling and alignment (T1-T2), use of the Jasper jumper (T2-T3), and use of Class II elastics (T3-T4). Dependent analysis of variance (ANOVA) and Tukey tests were used to compare the durations of the 3 treatment phases and for intragroup comparisons of the 4 treatment stages.

RESULTS

The alignment phase showed correction of the anteroposterior relationship, protrusion and labial inclination of the maxillary incisors, and reduction of overbite. The Jasper jumper phase demonstrated labial inclination, protrusion and intrusion of the mandibular incisors, mesialization and extrusion of the mandibular molars, reduction of overjet and overbite, molar relationship improvement, and reduction in facial convexity. The Class II elastics phase showed labial inclination of the maxillary incisors; retrusion, uprighting, and extrusion of the mandibular incisors; and overjet and overbite increases.

CONCLUSIONS

The greatest amount of the Class II malocclusion anteroposterior discrepancy was corrected with the Jasper jumper appliance. Part of the correction was lost during Class II intermaxillary elastics use after use of the Jasper jumper appliance.

Authors+Show Affiliations

Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, Brazil.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

21803237

Citation

Herrera, Francyle Simões, et al. "Cephalometric Evaluation in Different Phases of Jasper Jumper Therapy." American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics, vol. 140, no. 2, 2011, pp. e77-84.
Herrera FS, Henriques JF, Janson G, et al. Cephalometric evaluation in different phases of Jasper jumper therapy. Am J Orthod Dentofacial Orthop. 2011;140(2):e77-84.
Herrera, F. S., Henriques, J. F., Janson, G., Francisconi, M. F., & de Freitas, K. M. (2011). Cephalometric evaluation in different phases of Jasper jumper therapy. American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics, 140(2), e77-84. https://doi.org/10.1016/j.ajodo.2011.03.018
Herrera FS, et al. Cephalometric Evaluation in Different Phases of Jasper Jumper Therapy. Am J Orthod Dentofacial Orthop. 2011;140(2):e77-84. PubMed PMID: 21803237.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Cephalometric evaluation in different phases of Jasper jumper therapy. AU - Herrera,Francyle Simões, AU - Henriques,José Fernando Castanha, AU - Janson,Guilherme, AU - Francisconi,Manoela Favaro, AU - de Freitas,Karina Maria Salvatore, PY - 2010/09/01/received PY - 2011/03/01/revised PY - 2011/03/01/accepted PY - 2011/8/2/entrez PY - 2011/8/2/pubmed PY - 2011/9/29/medline SP - e77 EP - 84 JF - American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics JO - Am J Orthod Dentofacial Orthop VL - 140 IS - 2 N2 - INTRODUCTION: The aim of this study was to evaluate the dentoskeletal and soft-tissue effects of Class II malocclusion treatment with the Jasper jumper followed by Class II elastics at the different stages of therapy. METHODS: The sample comprised 24 patients of both sexes (11 boys, 13 girls) with an initial age of 12.58 years, treated for a mean period of 2.15 years. Four lateral cephalograms were obtained of each patient in these stages of orthodontic treatment: at pretreatment (T1), after leveling and alignment (T2), after the use of the Jasper jumper appliance and before the use of Class II intermaxillary elastics (T3), and at posttreatment (T4). Thus, 3 treatment phases could be evaluated: leveling and alignment (T1-T2), use of the Jasper jumper (T2-T3), and use of Class II elastics (T3-T4). Dependent analysis of variance (ANOVA) and Tukey tests were used to compare the durations of the 3 treatment phases and for intragroup comparisons of the 4 treatment stages. RESULTS: The alignment phase showed correction of the anteroposterior relationship, protrusion and labial inclination of the maxillary incisors, and reduction of overbite. The Jasper jumper phase demonstrated labial inclination, protrusion and intrusion of the mandibular incisors, mesialization and extrusion of the mandibular molars, reduction of overjet and overbite, molar relationship improvement, and reduction in facial convexity. The Class II elastics phase showed labial inclination of the maxillary incisors; retrusion, uprighting, and extrusion of the mandibular incisors; and overjet and overbite increases. CONCLUSIONS: The greatest amount of the Class II malocclusion anteroposterior discrepancy was corrected with the Jasper jumper appliance. Part of the correction was lost during Class II intermaxillary elastics use after use of the Jasper jumper appliance. SN - 1097-6752 UR - https://www.unboundmedicine.com/medline/citation/21803237/Cephalometric_evaluation_in_different_phases_of_Jasper_jumper_therapy_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0889-5406(11)00403-3 DB - PRIME DP - Unbound Medicine ER -