• Title/Summary/Keyword: Pendulum appliance

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Pendulum appliance를 이용한 편악치료

  • Sin, Ju-Ho;Im, Jong-Won;Kim, Il-Gyu
    • The Journal of the Korean dental association
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    • v.39 no.2 s.381
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    • pp.143-148
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    • 2001
  • In patients with moderate crowding, the use of Pendulum appliance can be considered as one of intra-arch appliances. Its resolves the crowding by moving molars distally in the maxillary arch. The most important advantage of Pendulum appliance does not require patient cooperation at all. In this case we used a Pendulum appliane to resolve anterior crowding with a single-arch treatment in the maxillary arch.

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MAXILLARY MOLAR DISTALIZATION WITH A PENDULUM APPLIANCE (Pendulum 장치를 이용한 상악 대구치의 원심이동 증례)

  • Lee, H.J.;Kim, Y.J.;Kim, J.W.;Jang, K.T.;Lee, S.H.;Kim, C.C.;Hahn, S.H.
    • Journal of the korean academy of Pediatric Dentistry
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    • v.35 no.3
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    • pp.523-531
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    • 2008
  • Maxillary molar distalization is a treatment approach for patients with Class II malocclusions who do not require extractions and mesial movements of mandibular molars. The pendulum appliance is effective for distalization of the maxillary molars and independent of patient cooperation. This appliance can stabilize the maxillary premolars and use the palatal rugae area as an additional anchorage. However, caution is needed to control collateral effects, including increase of lower facial height, incisor protrusion and damage to the rugae area. This article reports the cases in which maxillary molar distalization achieved by pendulum appliance resolves the space problems and corrects the molar relationships.

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Analysis of effects from usage of skeletal anchorage-assisted Pendulum appliance on vertical component of craniofacial structure (골격고정원을 이용한 Pendulum 장치가 두개 안면의 수직적 요소에 미치는 효과 분석)

  • Lee, Jin-Woo
    • Journal of Dental Rehabilitation and Applied Science
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    • v.34 no.1
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    • pp.10-16
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    • 2018
  • Purpose: The purpose of this study was to evaluate distalizing effects from the Pendulum appliance on vertical component of craniofacial structures. Materials and Methods: 20 Patients who visited for orthodontic treatments are assigned to two groups. Group I, SN-MP > 37 degrees are showing hyperdivergent pattern. Group II, 29 < SN-MP < 37 degrees are showing mesocephalic pattern. Each group are consisted of 10 people. Results and Conclusions: Differences between skeletal classifications result in significant differences at labioversion of lower incisors and distalized amount, which is larger at Group I (P <.05). Group II has only shown significant distalized molars (P < .05). Labioversion of lower incisors has not shown significant change. Skeletal anchorage-assisted Pendulum appliance doesn't deteriorate vertical component nor significantly improve.

THE EFFECT OF DISTAL MOVEMENT OF UPPER MOLAR USING THE PENDULUM APPLIANCE (Pendulum 장치의 상악대구치의 원심이동에 대한 효과)

  • Lee, Chang-Seop;Kim, Jae-Gwang;Kang, Dug-Il;Song, Kwang-Chul;Jung, Hyun-Ku;Lee, Sang-Ho
    • Journal of the korean academy of Pediatric Dentistry
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    • v.28 no.3
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    • pp.488-495
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    • 2001
  • Treatment of class II malocclusions require distalization of maxillary molars into class I relationship. Intraarch distal molar movement techniques have recently assumed an important role in young patients. In this study, the dental and skeletal effects of the pendulum appliance were evaluated by means of cephalometric radiographs. The samples were consisted of 19 patients: 11 females and 8 males, mean age $11.68{\pm}1.52$ years. Measurements were obtained from cephalometric prior to and the day of removal of the pendulum appliance. Treatment changes were analyzed. The following results were obtain. 1. The pendulum appliance produced $2.94{\pm}1.54mm$ distal molar movement with a mean intrusion of $1.17{\pm}0.97mm$, mean period $18.13{\pm}7.95$ weeks. 2. The anchor tooth was $1.34{\pm}1.40mm$ forward movement and $0.48{\pm}0.99mm$ extrusion, and labial tilting of incisors. 3. The angle between palatal plane and mandibular plane increased significantly. 4. There was no significant difference in according to 2nd molar position. 5. Total movement was consisted of 74% distal movement of 1st molar and 26% forward movement of the anchor tooth.

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Three dimensional analysis of tooth movement using different types of maxillary molar distalization appliances (간접골성 고정원을 이용한 상악 구치부 원심이동 장치 종류에 따른 치아 이동 양상 평가)

  • Kim, Su-Jin;Chun, Youn-Sic;Jung, Sang-Hyuk;Park, Sun-Hyung
    • The korean journal of orthodontics
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    • v.38 no.6
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    • pp.376-387
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    • 2008
  • Objective: The purpose of this study was to compare the three dimensional changes of tooth movement using four different types of maxillary molar distalization appliances; pendulum appliance (PD), mini-implant supported pendulum appliance (MPD), stainless steel open coil spring (SP) and mini-implant supported stainless steel open coil spring (MSP). Methods: These experiments were performed using the Calorific $machine^{(R)}$ which can simulate dynamic tooth movement. Computed tomography (CT) images of the experimental model were taken before and after tooth movement in 1 mm thicknesses and reconstructed into a three dimensional model using V-works $4.0^{TM}$. These reconstructed images were superimposed using Rapidform $2004^{TM}$ and the direction and amount of tooth movement were measured. Results: The mean reciprocal anchor loss ratio at the first premolar was 17 - 19% for the PD and SP groups. The appliances using mini-implants (MPD or MSP) resulted in less anchorage loss (7 - 8%). On application of a pendulum appliance or MPD, distalization was obtained by tipping rather than by bodily movement. Furthermore, the maxillary second molar tipped distally and bucally. But on application of MSP, distalization was achieved almost by bodily movement. Conclusions: Regarding tooth movement patterns during molar distalization, stainless steel open coil spring with indirect skeletal anchorage was relatively superior to other methods.

Maxillary molar derotation and distalization by using a nickel-titanium wire fabricated on a setup model

  • Jung, Jong Moon;Wi, Young Joo;Koo, Hyun Mo;Kim, Min Ji;Chun, Youn Sic
    • The korean journal of orthodontics
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    • v.47 no.4
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    • pp.268-274
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    • 2017
  • The purpose of this article is to introduce a simple appliance that uses a setup model and a nickel-titanium (Ni-Ti) wire for correcting the mesial rotation and drift of the permanent maxillary first molar. The technique involves bonding a Ni-Ti wire to the proper position of the target tooth on a setup model, followed by the fabrication of the transfer cap for indirect bonding and its transfer to the patient's teeth. This appliance causes less discomfort and provides better oral hygiene for the patients than do conventional appliances such as the bracket, pendulum, and distal jet. The treatment time is also shorter with the new appliance than with full-fixed appliances. Moreover, the applicability of the new appliance can be expanded to many cases by using screws or splinting with adjacent teeth to improve anchorage.