Jasper Jumper Research Articles

Soft tissue changes with fixed functional appliances in Class II division 1.

To evaluate facial soft tissue changes after the use of fixed functional appliances in Class II division 1 malocclusion cases using a systematic review of the literature. Several electronic databases (PubMed, Medline, Medline In-Process & Other Non-Indexed Citations, Cochrane Database, Embase, Web of Sciences, and Lilacs) were searched with the help of a senior Health Sciences librarian. Abstracts that appeared to fulfill the initial selection criteria were selected by consensus. The original articles were then retrieved. Their references were also hand-searched for possible missing articles. Clinical trials assessing facial soft tissue changes with the use of fixed functional appliances without any surgical intervention or syndromic characteristics were considered. A comparable untreated control group was required to factor out normal growth changes. Four articles using Herbst and one using Jasper Jumper fulfilled the selection criteria. An individual analysis of these articles was made and some methodological flaws were identified. Although fixed functional appliances produce some significant statistical changes in the soft tissue profile, the magnitude of the changes may not be perceived as clinically significant. The conclusions from this systematic review should be considered with caution because only a secondary level of evidence was found. Long-term double-blinded prospective randomized clinical trials are needed. Three-dimensional quantification of the soft tissue changes is required to overcome current limitations in our understanding of the soft tissue changes obtained with the use of fixed functional appliances.

ALAT CEKAT FUNGSIONAL JASPER JUMPER DALAM BIDANG ORTODONTI

Jasper Jumper is an orthodontic appliance that belongs to fixed functional appliance. This appliance is designed to correct class II malocclusion case, and also further development of Herbst’s. Jasper Jumper can be used to move a tooth, a group of teeth, or the entire denture. In addition, this appliance can produce the same effect as headgear, activator, or any combination of them. Understanding of selected cases, biomechanics and the working mechanism of Jasper Jumper is very helpful for operators working with this appliance in clinics.

Dentoskeletal changes induced by the Jasper jumper and cervical headgear appliances followed by fixed orthodontic treatment

INTRODUCTION The objective of this controlled clinical study was to compare the dentoskeletal effects of the Jasper jumper with those of cervical headgear, when both are used with edgewise appliances to correct Class II Division 1 malocclusion. Lateral cephalograms of 75 patients were divided into 3 groups of 25. The control group included untreated Class II children with an initial mean age of 11.82 years (range, 9.35-14.84 years); they were followed without treatment for a mean period of 1.95 years (range, 0.90-3.95 years). The Jasper jumper group had an initial mean age of 11.86 years (range, 9.45-14.94 years); they were treated for a mean period of 1.96 years (range, 0.93-3.98 years). The cervical headgear group had an initial mean age of 12.29 years (range, 9.95-15.24 years); they were treated for an average of 1.88 years (range, 0.95-3.95 years). Comparison of the initial measurements showed that the 3 groups were similar at pretreatment, thus allowing direct comparisons. Analysis of variance (ANOVA) and the Tukey test were applied for comparison of the groups. Different appliances yielded specific effects on several components (skeletal and dentoalveolar) evaluated. Anterior maxillary growth was significantly restricted by the cervical headgear. Mandibular growth was similar in all 3 groups, although it was slightly greater in the Jasper jumper group. The experimental groups had similar improvements in maxillomandibular relationshipd. The pattern of craniofacial growth was not significantly different between groups. The most significant effect on the maxillary dentoalveolar component was retrusion of the maxillary incisors by the cervical headgear. The effects observed for the Jasper jumper group were primarily related to the mandibular dentoalveolar component, including labial tipping and protrusion of the mandibular incisors, and mesial movement and extrusion of the mandibular molars compared with the control group. The headgear appliance corrected the Class II malocclusion mostly by anterior maxillary restriction and maxillary dentoalveolar effects. Correction of the Class II malocclusion with the Jasper jumper appliance was largely due to mandibular dentoalveolar effects rather than skeletal effects.

Treatment Efficiency in Skeletal Class II Patients Treated with the Jasper Jumper

To analyze the effects of the Jasper Jumper appliance during the treatment of skeletal Class II malocclusion. Lateral cephalograms and hand-wrist radiographs were collected from 45 Class II growing patients (22 boys, 23 girls). Three sets of records (initial, before Jasper Jumper, after Jasper Jumper) from 25 patients were compared with 20 control subjects of similar skeletal developmental stage. Mean age of the treatment and control groups were 11.83 years and 11.3 years, respectively. The data were analyzed by using paired t-tests. The results demonstrated that the Jasper Jumper effectively corrected Class II malocclusion, but the changes were 80% dentoalveolar. The Jasper Jumper induced a clockwise rotation of the occlusal plane without much alteration in vertical dimension. Skeletally, the maxillary growth was restricted and pogonion moved forward, improving the profile. The Jasper Jumper appliance may be an effective method to improve both the skeletal imbalance and the profile in growing patients.

Potential and limits of achieving neutral occlusion in patients with clefts of lip, alveolus and palate

Therapy of cleft patients aims to control bone growth and tooth development so as to ensure a secure occlusion with good function. This paper aims to uncover the potential and limits of achieving neutral occlusion in patients with clefts of lip, alveolus and palate. Two treatment approaches are presented and compared with respect to the best long-term results. The first method implies occlusal rehabilitation using maximum intermaxillary orthodontic fixation with the Jasper Jumper. Thus, orthodontic dental-alveolar compensation of the anomaly is obtained. The second method represents orthognathic surgery to achieve ideal intermaxillary relations and a neutral occlusion. Two patients are described - one each for both treatment regimens. The methods presented are meant to illustrate possible options for sagittal jaw development/movement in patient management. Orthodontic treatment has to rely on cooperation with maxillofacial surgery to achieve a neutral occlusion. Optimal management is ensured by a combination of both orthodontic and maxillofacial therapy. The orthodontic and surgical techniques for managing unilateral or bilateral clefts are continuously being further developed. Although orthodontic treatment can achieve good neutral occlusion in some patients, there are limitations and surgical measures may become necessary.

Estudo cefalométrico comparativo dos efeitos esqueléticos e dentários promovidos pelos aparelhos APM3 (Aparelho de Protração Mandibular) e Jasper Jumper nas fases inicial e imediatamente após avanço mandibular

OBJETIVO: avaliar, cefalometricamente, os efeitos dentários e esqueléticos provocados pelos aparelhos APM e Jasper Jumper. METODOLOGIA: a amostra consistiu de 34 pacientes, de ambos os gêneros, com idade média de 11 anos e 8 meses, todos em fase de crescimento, com má oclusão de Classe II por retrusão mandibular. Os pacientes foram divididos em 3 grupos: grupo 1 - 14 pacientes tratados com o APM3; grupo 2 - 10 pacientes tratados com o aparelho Jasper Jumper; e grupo 3 - 10 pacientes de um grupo controle não tratados ortodonticamente. Nos grupos 1 e 2 foram tomadas radiografias cefalométricas antes da instalação de qualquer aparelho e imediatamente após o avanço mandibular. No grupo 3 (controle) os pacientes foram observados por um período de 8 meses e 29 dias. As medidas cefalométricas utilizadas foram: IMPA, 1.PP, Nperp-A, Nperp-P e FMA. RESULTADOS E CONCLUSÕES: 1) Não ocorreram alterações esqueléticas e dentárias no grupo 1 (APM3) em relação ao grupo 3 (controle). 2) Houve uma maior inclinação para vestibular dos incisivos inferiores do grupo 2 (Jasper Jumper) em relação ao grupo 3 (controle) e não ocorreram alterações esqueléticas. 3) Apesar de não terem ocorrido diferenças significantes nas alterações dentárias entre os grupos 1 (APM3) e grupo 2 (Jasper Jumper), os incisivos inferiores apresentaram uma maior tendência à inclinação vestibular no grupo 2 (Jasper Jumper) e esqueleticamente não ocorreram diferenças entre os dois grupos estudados.

Skeletal, dental and soft-tissue changes induced by the Jasper Jumper appliance in late adolescence.

The purpose of this study was to evaluate the skeletal, dental, and soft-tissue changes in late-adolescent patients treated with Jasper Jumpers applied with sectional arches. The study sample consisted of 30 subjects (15 treated, 15 untreated) with skeletal and dental Class II malocclusion. Our study was carried out on 75 lateral cephalometric films. Among these radiograms, 15 were taken before the leveling stage in the treatment group. Half of the remaining 60 were taken before placement and after removal of the Jasper Jumper appliance in the treatment group and the other half at the beginning and six months after in the control group. The patient selection criteria were Class II malocclusion caused by retrognathic mandible, normal or low-angle growth pattern, and postpeak growth period. The statistical assessment of the data suggests that the sagittal growth potential of the maxilla was inhibited. There were no significant changes in the vertical skeletal parameters. The mandibular incisors were protruded and intruded, whereas the maxillary incisors were retruded and extruded. The upper molars tipped distally as the lower molars tipped mesially. Because of these changes, the occlusal plane rotated in the clockwise direction. Overbite and overjet were reduced, and the soft-tissue profile improved significantly. The results revealed that, in late-adolescent patients, the Jasper Jumper corrected Class II discrepancies mostly through dentoalveolar changes. It is suggested that this treatment method could be an alternative to orthognathic surgery in borderline Class II cases.

Clinical Application and Effects of the Forsus™ Spring

The best known of the fixed functional appliances are the Herbst appliance and the Jasper Jumper. The Forsus spring is a new development which has been tested in a clinical study to establish when it can be used and to compare it with its predecessors. The Forsus spring was used over a period of 4 months to treat 13 patients with an average age of 14.2 years with Class II malocclusion. Evaluation of the lateral cephalograms showed that dental effects accounted for 66% of the sagittal correction. The sagittal occlusal relations were improved by approximately 3/4 of a cusp width to the mesial on both the right and left side as a result of distal movement of the upper molars and mesial movement of the lower molars. Retrusion of the upper and protrusion of the lower incisors reduced the overjet by 4.6 mm. Intrusion and protrusion of the lower incisors reduced the overbite by 1.2 mm. The occlusal plane was rotated by 4.2 degrees in clockwise direction as a result of intruding the lower incisors and the upper molars. The maxillary and mandibular arches were expanded at the front and rear during treatment.--Evaluation of a questionnaire filled in by the patients after 2 months of treatment showed that approximately half of them had experienced difficulties in brushing their teeth. The main problem, however, was the restriction experienced in the ability to yawn. Overall, two thirds of the adolescents found the Forsus spring better than the appliance previously used to correct their Class II malocclusion, such as headgear, activator or Class II elastics. The Forsus spring has stood the test in clinical application. It is a good supplement to the Class II appliance systems already available.

A cephalometric study of class II Division 1 malocclusions treated with the Jasper Jumper appliance.

This lateral cephalometric study investigated the dental and skeletal effects of the Jasper Jumper appliance used in the correction of Class II Division 1 malocclusions. A sample of 36 growing patients treated with the Jasper Jumper appliance was divided into two groups: (1) 24 patients with records obtained at the start and completion of orthodontic treatment, and (2) 12 patients with records available at the beginning and end of the Jumper phase of treatment. Treatment effects were determined by statistical comparisons of cephalometric changes in the patients relative to age-adjusted cephalometric standards, and from structural superimpositions. While the Jumpers were in place, maxillary incisors were retroclined and the molars were moved distally, tipped back, and intruded. The mandibular incisors were proclined and intruded, while the molars were translated mesially, tipped forward, and extruded. Skeletal measures showed reduced forward maxillary displacement and no significant alteration of horizontal mandibular growth. During orthodontic finishing, molar tipping and maxillary incisor retroclination were corrected, although the mandibular incisors remained proclined. In summary, this study found that the Jasper Jumper appliance corrected Class II discrepancies largely through maxillary and mandibular dentoalveolar effects and, to a limited extent, by restraint of forward maxillary growth.

The use of the Jasper Jumper for the correction of Class II malocclusion in the young permanent dentition.

The effect of the Jasper Jumper in the treatment of Class II, division 1 malocclusions was studied in 26 consecutive 13-25-year-old patients. The median treatment time was 5 months, followed by a median period of observation or retention of 7 months. The effects of the treatment were evaluated from cephalograms taken before the treatment, at the removal of the Jumpers and at the end of the period of observation or retention. The Jumpers brought about a slight retrusion of the maxilla and markedly increased the mandibular prognathism. The maxillary incisors and molars were retruded, and the mandibular incisors and molars protruded. The median correction of the overjet was almost 5 mm and of the molar relationship 3 mm. The intrusive forces of the Jumper resulted in a transient intrusion of the maxillary molars and the mandibular incisors. After the period of retention and observation, the dento-alveolar effects had partially or totally relapsed. The remaining effect contributing most to the correction was the skeletal effect on the mandible, i.e. the increase in mandibular prognathism. The skeletal mandibular effect was the same in younger and older subjects. At the end of observation about 60 per cent of the overjet reduction and 75 per cent of the molar correction remained. The incidence of breakage of the Jumpers was 9 per cent.

Initial effects of treatment of Class II malocclusion with the Herren activator, activator-headgear combination, and Jasper Jumper

The initial effects of treatment of Class II, Division 1 malocclusion with an activator, according to Herren (27 patients), with an activator-headgear combination (20 patients), or with the Jasper Jumper appliance (25 patients) were studied on lateral cephalograms from before and after 6 to 8 months of treatment. The patients' ages ranged from 9 to 12 years. At the end of the period of observation, the correction in overjet and molar relationship was more complete in the patients with the Jasper Jumper than in the patients with the activator. Whereas all the patients with the Jasper Jumper showed neutral occlusion, this was the case in only 20 of the 47 patients with the activator. The correction of the distal occlusion occurred through a combination of skeletal and dentoalveolar adaptations. Skeletal changes accounted for 42%, 35%, and 48% of the overjet correction by the Herren-type activator, the headgear-activator, and the Jasper Jumper, respectively. The correction of the molar relationship occurred to 55%, 46%, and 38% by skeletal changes in the respective groups. Dentoalveolar compensation (distal movement of the upper molars, mesial movement of the lower molars) appeared to be inversely related to skeletal adaptation. The patients with the Jasper Jumper showed a marked intrusion of the lower incisors with a consequent reduction in overbite. (Am J Orthod Dentofac Orthop 1997;112:19-27.)

Treatment of a Class II, Division 1 malocclusion with the Jasper Jumper: A case report

Treatment of a Class II, Division 1 malocclusion with the Jasper Jumper: A case report

The correction of interarch malocclusions using a fixed force module

This article describes the use of a flexible force module (the Jasper Jumper) that can be incorporated into existing fixed appliances to correct various types of sagittal malocclusion. Essentially the spring mechanism described in this article is a modification of the original bite jumping mechanism of Herbst. The flexible spring module provides greater freedom of mandibular movement than is possible with the more rigid mechanism of the Herbst appliance. The facial musculature applies force through these modules to the anchor points to produce a variety of treatment effects. The treatment effects produced by the module mimic those previously described for the Herbst appliance and include posterior movement of the maxillary buccal segments and anterior movement of the mandible or mandibular dentition or both. Specifics of the clinical management of this modular system are discussed, including anchorage preparation and torque application, as well as the methods of anchoring, activating and reactivating the modules. (A M J O RTHOD D ENTOFAC O RTHOP 1995;108:641-50.)

Treatment of Class II malocclusions with the Jasper Jumper appliance—a preliminary report

The effect of the Jasper Jumper appliance (American Orthodontics, Sheboygan, Wis.) on the dentofacial complex was studied in 17 consecutive growing patients who had Class ll, Division 1 malocclusions. Lateral cephalograms taken before treatment and immediately after removal of the Jumpers were analyzed according to the method of Pancherz. The following results were found: (1) Class l occlusal relationships were achieved in all patients in an average treatment time of 6 months. (2) The correction of the Class ll malocclusion was a result of skeletal (40%) and dental (60%) changes. (3) Skeletal Class ll correction was predominantly restricted to the mandible. (4) The dentoalveolar part of total molar relationship correction took place to the same extent in both jaws, whereas in overjet correction the maxillary dental changes outweighed the mandibular changes by far. (5) When compared with normal growth changes (Bolton standards), treatment with Jasper Jumpers distalizes the upper dentition and moves the lower teeth mesially. Mandibular growth seems to be increased to some extent. It was concluded that treatment with the Jasper Jumper appliance presents an effective method to correct Class ll malocclusion in growing patients. (A M J O RTHOD D ENTOFAC O RTHOP 1995;108:341-50.)