Maxillary molar distalization is a common treatment approach for Class II malocclusions. This study aimed to compare the effectiveness and side effects of conventional pendulum appliances versus single and double miniscrew-supported pendulum appliances on skeletal and dentoalveolar structures. Thirty patients with skeletal Class I and dental Class II malocclusion were randomly allocated to 3 equal groups (n = 10 each): conventional pendulum appliance (Group 1), single miniscrew-supported pendulum (Group 2), and double miniscrew-supported pendulum (Group 3). Mean ages were 13.6 ± 1.2, 14.5 ± 1.1, and 14.3 ± 1.2 years, respectively. Treatment continued until bilateral Class I molar relationships were achieved. Pre- and post-distalization lateral cephalometric radiographs were analyzed for skeletal and dental changes. The mean distalization period was significantly shorter in Group 3 (6.4 ± 0.5 months) compared to Group 2 (7.3 ± 0.5 months) and Group 1 (8.0 ± 0.7 months) (P < .05). All groups exhibited distal molar tipping with upper first molar long-axis angle to maxillary horizontal reference plane (°) increases of 5.2 ± 0.9°, 6.8 ± 1.1°, and 7.4 ± 1.0° in Groups 1, 2, and 3, respectively. Incisor protrusion occurred in Groups 1 and 2 (upper central incisor tip to maxillary vertical reference plane (mm) increase: 2.2 ± 0.5 mm and 1.5 ± 0.4 mm), while Group 3 demonstrated incisor retrusion (-0.8 ± 0.3 mm) (P < .01). Group 3 showed significantly less increase in overjet (0.4 ± 0.2 mm) compared to Groups 1 (2.5 ± 0.6 mm) and 2 (1.7 ± 0.5 mm) (P < .01). The double miniscrew-supported pendulum appliance demonstrated superior clinical efficiency with reduced treatment duration and minimal anchorage loss. This approach provided better control of incisor position during maxillary molar distalization compared to conventional and single miniscrew designs.

The management of Class II malocclusions accompanied by midline deviation requires individualized approaches that balance treatment effectiveness with patient tolerance to orthodontic appliances. The Pendulum appliance is a fixed orthodontic device known as an effective and reliable method for maxillary molar distalization. This case report aims to describe the orthodontic treatment of an 11-year-old female patient presenting with a Class II malocclusion, midline deviation, and ectopic canine position on one side, using the Pendu-lum appliance. The treatment goal was to achieve controlled unilateral distalization to correct the midline shift. Following clinical and radiographic evaluations, a four-phase treatment protocol was followed for ap-proximately three years: molar distalization with the Pendulum appliance, spontaneous distalization of the premolars, space maintenance using a transpalatal (Nance) appliance, and finally, placement of fixed brackets. During treatment, the patient reported persistent discomfort due to the palatal component of the Pendulum, which caused oral hygiene challenges and mucosal irritation. The Pendulum appliance proved to be an effective solution for correcting a Class II malocclusion and midline deviation in a growing patient. However, appliance selection should always be based on individ-ual diagnosis, considering the type of malocclusion, patient age, and expected compliance. Further long-term studies with larger patient samples are needed to assess the stability of outcomes achieved with the Pendulum, especially in cases involving midline correction.

Dentoskeletal effects of molar distalization with miniscrew-anchored cantilever and pendulum appliance for Class II correction.

Flexible and rigid guidance in skeletally-anchored maxillary molar distalization: The miniscrew-supported pendulum vs the Beneslider.

Class II malocclusions may be corrected by combinations of restriction or redirection of maxillary growth, distal movement of maxillary dentition, Experimental studies have shown that forces for Class II correction produced by extraoral traction and intermaxillary elastics cause posterior repositioning of the maxillary dental complex, as well as of the maxilla itself [1]. Besides exploiting the periodontal anchorage potential (teeth), additional anchorage aids are often needed to achieve maximal anchorage. The aids conventionally used for intraoral anchorage to enhance periodontal anchorage quality are trans palatal and lingual bars, Nance holding arch and intermaxillary elastics [2]. The anchorage in edgewise treatment is the most important factor that affects the treatment plan and result. Until now, various techniques to reinforce anchorage have been devised and used in orthodontic practice. Recently, several kinds of implant anchors providing absolute anchorage have attracted the attention of orthodontists. Among them, titanium screws, which were originally used for intermaxillary or bone ?xation, have the following advantages: minimal anatomic limitation for placement, lower medical cost, simpler placement surgery, and less discomfort after implantation when compared with dental implants for abutment. Therefore, titanium screws of various sizes have gradually come to be used for orthodontic absolute anchorage. However, there have been few human studies in which the success rates for various kinds of implant anchors were examined [3]. Anchorage is a critical component of en-masse retraction. Clinicians pay considerable attention to Newton’s third law- the law of action and reaction. They know that every action they take will have an equal and opposite reaction. Many approaches to treatment mechanics have been developed to ef?ciently retract anterior teeth [4]. In tooth-borne anchorage cases, complicated mechanics or supplementary appliances are needed to control anchorage. Extraoral appliances can provide stable anchorage but depend totally on patient cooperation. Lack of cooperation can result in anchorage loss and unsatisfactory treatment results; these have led to greater use of intraosseous anchorage [5]. It has become more practical to use implants for anchorage in orthodontic patients, Orthodontic screws expand the horizons of orthodontic treatment because they allow treatment to proceed successfully with virtually no anchorage loss and minimal patient cooperation. However, they are typically used as auxiliaries to the posterior anchor teeth during en-masse retraction with sliding mechanics. The mechanics of force application can be simple or complicated, according to the anchorage control. For anterior retraction, if the mini-implants are designed to accommodate arch wires, the number of teeth requiring bands or brackets can be reduced, moderating the risk of damage to the periodontium or enamel surfaces. Distalization of the maxillary dentition has been recognized as an important treatment approach for the correction of Class II malocclusions and it has been traditionally performed using headgear. However, known disadvantages of headgear appliances include poor aesthetics and dependence on patient compliance. In an attempt to overcome the limitations of headgear, several noncompliance devices such as distal jet and pendulum appliances were introduced. However, they often resulted in undesirable side effects such as extrusion and protrusion of the maxillary anterior teeth and extrusion, distal tipping, and distal rotation of the maxillary first molars [6]. The advent of temporary anchorage devices (TADs) has allowed better control over unwanted reciprocal movement of the anchor units, although miniscrew insertion in the interradicular region is associated with serious limitations, including a short range of action, coupled with the risk of root injury. Miniplates have been advocated as an alternative to avoid contact with adjacent roots in the area of insertion; however, their placement and removal require more invasive surgical procedures.6Orthodontics in its century of existence have had a lot of landmarks in its evolution, but very few can match the clinical impact made by micro-implants and the recently introduced infra-zygomatic crest (IZC) and buccal shelf (BS) orthodontic bone screws. Orthodontics in its century of existence have had a lot of landmarks in its evolution, but very few can match the clinical impact made by micro-implants and the recently introduced infra-zygomatic crest (IZC) and buccal shelf (BS) orthodontic bone screws. Many studies have been reported on the application and clinical ef?ciency of total arch distalization mechanics; however, studies about biomechanical effects such as stress and displacements on the teeth and the surrounding tissues are limited. finite element analysis (FEA), a common method in engineering, became a valuable option for evaluation of biomechanical factors in orthodontics [7,8]. The purpose of this study was to (1) Evaluate three-dimensional stress distribution and initial displacement of maxillary dentition under total arch distalization mechanics for correction of Angle’s Class II malocclusion using IZC bone screws and C-Palatal plate appliance in Pre-adjusted Edgewise Appliance (PEA) setup and finite element models and to (2) To compare biomechanical effects of the IZC bone screws and MCPP for total maxillary arch distalization.

Impaction or ectopic eruption of premolars can also occur due to space loss caused by the early loss of primary molars, often requiring early management. Timely intervention can reduce or eliminate the need for more complex and costly fixed orthodontic treatment, alleviating parental anxiety about future complications and financial burden. The pendulum appliance is an intraoral device used for molar distalization and space regaining with minimum compliance required. This case report explores the utilization of a pendulum appliance for space regaining in a patient with a locked premolar due to premature loss of primary molars resulting in mesial migration of maxillary first permanent molar. The appliance effectively facilitated controlled distalization of the molar, creating sufficient space for the eruption of locked premolar and achieving proper tooth alignment. This improved facial aesthetics, and enhanced self-image, boosting the child’s confidence. Hence, it offers a predictable, efficient, and patient-friendly approach to managing space deficiencies in the mixed dentition phase.

Objective: To compare the effectiveness of Pendulum and Headgear appliances in treating Class II malocclusions.Methods: A systematic review and meta-analysis were conducted using studies from PubMed/MEDLINE, Cochrane Library, and DOAJ. The search strategy targeted studies evaluating maxillary and mandibular skeletal landmarks, maxillo-mandibular relations, vertical relations, dental relations, and nasolabial angles. Seven studies were included in the qualitative synthesis, and five were included in the quantitative assessment.Results: Maxillary Skeletal Landmarks: SNA (MD = 0.14, p &gt; 0.05), Nperp-A (MD = -0.15, p &gt; 0.05), and Co-A (MD = 0.79, p &gt; 0.05) showed no significant differences between the two groups. Mandibular Skeletal Landmarks: SNB (MD = -0.71, p &gt; 0.05) and Co-Gn (MD = 0.65, p &gt; 0.05) also showed no significant differences. Maxillo-Mandibular Relation: ANB angle (MD = -15.68, p &gt; 0.05) was not significantly different. Vertical Relation: GoGnSn (MD = -13.31, p &gt; 0.05), FMA (MD = 0.76, p &gt; 0.05), SN.PP (MD = 0.07, p &gt; 0.05), and LAFH (MD = -1.66, p &gt; 0.05) showed no significant differences.&nbsp;Conclusion: Both Pendulum and Headgear appliances are effective in correcting Class II malocclusions. The Pendulum appliance, being fixed, is advantageous in non-compliant patients, producing primarily dentoalveolar effects. The Headgear appliance not only improves dentoalveolar alignment but also enhances skeletal maxillo-mandibular relationships. The choice of appliance should be individualized based on patient needs, compliance, and specific orthodontic goals.

Background: Pendulum appliance used commonly used to achieve molar distalization in the management of borderline class II malocclusion is associated with mesial tipping of the maxillary premolars and proclination of maxillary incisors post-distalization, resulting in round tripping and increased treatment time. Bone Anchored Pendulum Appliance (BAPA) is one of the modifications of the pendulum that could effectively prevent anchorage loss. Aim: To evaluate the effectiveness of Bone Anchored Pendulum Appliance(BAPA) over the Conventional Pendulum Appliance(CPA) for the distalization of maxillary molar in the management of Class II malocclusion. Materials and Methods: A web search was done in Google Scholar, MEDLINE, Web of Science, LILAC and COCHRANE Library databases using PRISMA guidelines. The search included RCTs and Non RCTs (Both Prospective and Retrospective studies) comparing distalization achieved by BAPA with CPA in Class II malocclusion. The Risk of bias was assessed using the ROBINS - I tool. Results: Of the initial 745 articles, 5 studies met the inclusion criteria and were included to the systematic review. The BAPA showed between 4.8 -6.4 mm of molar distalization and between 9 °-11.3° of distal tipping of molars while the distalization achieved with CPA was between 2mm -6.4mm with 6.67° -14.50° of distal tipping. While CPA groups showed mesial tipping of premolars, distal tipping of premolars was observed with the BAPA appliances. Conclusions: BAPA were found to significantly reduce anterior anchorage loss, distalise the premolars and molars. There is moderate evidence that BAPA provides greater distalization with reduced incidence of unwanted tooth movements.

ObjectivesThe purpose of this multicenter retrospective study was to perform a two-dimensional analysis of upper airway changes in adolescent patients following molar distalization with the Pendulum appliance.Materials and methodsThe study involved the cephalometric analysis of 88 patients, retrospectively categorized into two groups: skeletal Class II with a dental Class II molar relationship (36 patients, mean age 12.6 ± 1.1 years) and skeletal Class I with a dental Class II molar relationship (54 patients, mean age 12.3 ± 1.2 years). Changes were observed using lateral radiographs before (T0) and after Pendulum appliance removal (T1); treatment time averaged 7 months. Upper airways were subsequently analyzed by tracing lateral radiographs. The Shapiro-Wilk test showed a normal distribution of the data, therefore parametric tests were used for statistical analysis. Intragroup changes between T0 and T1 were evaluated using paired t-tests, and intergroup differences were assessed using independent student t-tests; statistical significance was set at 0.05.ResultsStatistically significant differences were observed in the skeletal measurements that characterized both groups, particularly in ANB and Wits appraisal, at T0 (P < 0.001). After molar distalization, Class I and Class II groups reported no statistically significant differences with changes almost equal to zero between timepoints (P > 0.05). Additionally, intergroup comparisons of airway changes at T1 did not show statistically significant differences (P > 0.05).ConclusionsThe Pendulum appliance does not significantly change the upper airway dimensions in Class I and Class II malocclusion patients, thereby minimizing potential respiratory risks.

Abstract Deciding between using pendulum appliance (PA) and headgear (HG) in patients with malocclusion (MA) is a critical one; it significantly influences treatment outcomes and patient experiences. This review explored the advantages and limitations of PA and HG in treating MA, providing valuable insights to both orthodontic professionals and patients in making informed treatment decisions. A systematic review and meta-analysis was conducted on quantitative randomized and nonrandomized trials published between 2003 and 2015. The publications were retrieved from five electronic databases: Web of Science, Cochrane Central, PubMed, Embase, and Medline. The effectiveness of various treatment modalities in addressing MA was measured by analyzing changes in the following parameters: maxillary skeletal position (SNA), mandibular skeletal position (SNB), maxillomandibular relationship (ANB), vertical components (SN.GoGn), and soft tissue (nasolabial). The pooled results were calculated using a random effects model, and Egger’s regression and funnel plots were employed to determine publication bias. One randomized controlled trial (RCT) and five non-RCTs with a total of 304 patients were included. The pooled results revealed nonsignificant differences in SNA (mean difference ratio: −0.35, P = 0.24, I 2 = 84.58%), ANB (mean difference ratio: −0.37, P = 0.43, I 2 = 91.60%), SN.GoGn (mean difference ratio: −0.24, P = 0.11, I 2 = 0%), SNB (mean difference ratio: 0.10, P = 0.45, I 2 = 0%), and nasolabial angle (mean difference ratio: −0.06, P = 0.72, I 2 = 0%). The absence of significant differences between these treatment modalities’ impact on the measured parameters challenges conventional orthodontic knowledge and highlights the complexity of MA correction. This study underscores the importance of personalized treatment planning and emphasizes that the choice between HG and PA should be guided by individual patient needs, treatment goals, and the specific characteristics of their MA.

Treatment of Class II malocclusion with significant crowding might be achieved without extraction if an appropriate diagnosis is made. The current study presents the orthodontic treatment for a 12-year-old female patient who was diagnosed with end-on molar relation bilaterally on class I skeletal base with proclined upper anteriors and crowding in lower anteriors. Both in terms of appearance and occlusal function, the post-treatment results met the patients' expectations. This case report details the non-extraction treatment of a class II molar relation by distalization into a class I molar relation utilizing a modified pendulum appliance.

Introduction: Molar distalization is one of the treatment protocols in cases with mild to moderate arch discrepancy and class II molar relationship associated with a normal mandible. It is achieved by using pendulum appliance and temporary anchorage devices such as miniscrew anchorage system. Aims and Objectives: To evaluate and compare the dentoalveolar and skeletal changes between pendulum appliance and miniscrew anchorage system. Materials and Methods: The patients were divided into 2 groups of 10 each: group I (using the pendulum appliance) and group II (using miniscrew anchorage system). Lateral cephalogram was taken for each subject and various skeletal such as SNA, SNB, ANB, and PTV-A dentoalveolar (U1-PTV, U6-PTV, U5-FH, and U6-FH) measurements were taken. The data obtained were statistically analyzed using Statistical Package for Social Sciences (SPSS) software. Intragroup analysis between pendulum and implant group was done using Wilcoxon Matched pairs test and the intergroup analysis between pendulum and implant group was done using Mann–Whitney test. Results: The results showed that there was nonsignificant difference in both the groups ( p &gt; .05) with the less tipping in group II (1.2°) than group I (2.7°) .The molar extrusion was more with the pendulum group (2.1 mm) than the miniscrew anchorage distalization group (1.3 mm). Conclusion: The molar distalization using the miniscrew anchorage system showed more bodily movement than the pendulum appliance which showed more tipping movement. Moreover, the pendulum appliance showed significant amount of anchor loss than the miniscrew anchorage system.

Effectiveness of using the Pendulum appliance for distal movement of permanent maxillary molars in children

Maxillary molar distalization has been in used in orthodontics over a centennial. This approach has been used to attain space in the maxillary arch for relief of crowding, correction of Class II molar relationship and reduction of an increased overjet. This article reports the successful use of five molar distalization appliances, they are; the pendulum, distal jet, K- loop molar distalizer, double-loop Ni-Ti and the C- space regainer. All the five patients were in the age group of 12-20 years, who had Class II molar relationship with mild overjet and normal mandibular arch. In all the five patients maxillary molar distalization was efficient in correcting the borderline Class II malocclusion. Pendulum appliance was more efficient than others because it is easy to fabricate, cost-effective, less frequent activation and minimum anchorage loss. The practitioner requires a through understanding of the clinical indications of this procedure so that undue side effects can be minimized along with better incorporation in the orthodontic patient care.

Management of Class II Malocclusion with Modified Pendulum Appliance and Second Molar Extraction - JCO- Print ISSN No: - Online ISSN No:- 2582-0478 Article DOI No:- 10.18231/j.jco.2018.013, Journal of Contemporary Orthodontics-J Contemp Orthod

With the advent of mini-implants, Class II correction has become routine. The study's goal was to compare the "Bone-Anchored Pendulum Appliance (BAPA)" to the "Bone-Anchored Intraoral Bodily Molar Distalizer (BAIBMD)" in terms of clinical efficacy. Five boys and five girls were among the 10 patients in this split-mouth trial who had to have their molars distalized. On one side, BAPA Construction, and on the other, BAIBMD was piloted. A titanium mini-screw was used to secure both appliances to the bone since this was a spilled-mouth technique. The first molar bands to apply 200 g of force were used for both devices, as with all the other components that were similar for both appliances. For both sides, the nature, duration, and rate of tooth movement were compared. Using the Wilcoxon signed-rank test, descriptive statistics for several parameters were examined. Distalization was accomplished on both sides with clinical success. The rate of distalization did not show any significant variation. Less time was needed for distalization with BAPA, as evidenced by the statistically substantial variances in treatment duration between the two groups. Molar tipping was noticed in BAPA, and it was statistically significant. While the pace of distalization was equal for both appliances, BAIBMD required more time than BAPA but resulted in a distal tooth movement that was mostly translatory in nature.

There has been increase in the treatment modalities for non-surgical Class II malocclusion. This has resulted in orthodontists becoming more vigilant with extraction treatment plans and exploring possible non-extraction treatment approaches. Maxillary molar distalization is one such method. The maxillary molar is distalized to create space and helps in solving the malocclusionMany appliance were used for the distalization of molars over the period of time. Both intra-oral and extra-oral methods are present. The extra oral appliance includes headgear and heavy elastics; whereas intra oral appliance include distal jet, jones jigs, pendulum appliance, k-loop, fixed functional appliances, magnets, ACCO appliance and use of TAD’s. Thus the use of IZC implants has been effective in distalization of molars.

Distalization is widely used as an effective method of gaining space with or without the need of extractions. Various Extra-oral and intra-oral appliances have been introduced over the years. The pendulum appliance and its modifications are specifically very popular among clinicians owing to their effectiveness. The present case series comprises of two cases that have been effectively treated using the pendulum appliance ensuing in aesthetically pleasing outcomes.

This case report describes the surgical management of mucosal entrapment of a mini-implant-supported molar distalization appliance.A 17-year-old female patient was referred for removal of a implant-supported pendulum appliance entrapped in the palatal mucosa, which is used for molar distalization by the Department of Orthodontics. The clinical findings suggested that the overlying soft tissue was non-inflammatory and occurred due to forceful impingement of the wire component on the palatal mucosa.Surgical intervention was planned for removal of the mucosal entrapped appliance. A V-shaped incision was made under local anesthesia to expose the wire. The Appliance was completely removed, and silk sutures were placed for proper primary closure. Healing was uneventful, with minimal discomfort.While there are risks associated with orthodontic treatment with fixed and removable appliances, they can be avoided by adopting the required measures during treatment and educating patients about their responsibilities.

Introduction: Difference in design of distalization appliances resulted in a difference in dimensions of dental arch after ending of distalization. Objectives: The current study aimed to evaluate transverse dental changes caused by using both 2K-loop and pendulum appliances, and to compare different effects of both appliances using transverse dental measurements. Material and methods: Study group included 16 participants with dental bilateral full cusp or end-to-end class II molar relationship equally divided into two groups. First group, 2K-loop group, consisted of 5 girls and 3 boys (mean age, 10.8 ± 1.2 years) treated with PB applied 2K-loop appliance. Second group, pendulum group included 5 girls and 3 boys (mean age, 11.1 ± 1.1 years) treated with palatally applied pendulum appliance. Study models were taken at the beginning of treatment and at the end of molar distalization. Paired samples t-test was applied to evaluate mean changes during treatment in each group, and to compare measurement differences between the two groups. Results: Statistical analysis of the measurements showed an increase in inter-molar distance of the first molars in the two groups. The increase was significant in the 2K-loop group, with 4.33 ± 0.81 mm, and not significant in the pendulum group (2.19 ± 2.00 mm). There was a significant distal rotation in the upper right first molars of 7.83° ± 2.92°, and 8.66° ± 2.73° on the left with PB 2K-loop appliance. Also, significant mesial rotation on the upper right first molars was observed with 4.83° ± 3.97°, and 4.83° ± 2.71° on the left with palatally applied pendulum appliance. Conclusions: PB acting on 2K-loop appliance causes an increase in the inter-molar distance and distal rotation of maxillary first molars. Palatally acting pendulum appliance results in mesial rotation of maxillary first molars. In cases where maxillary molars need to be de-rotated and to increase inter-molar distance, PB 2K-loop appliance is a better choice.