Posterior Available Space for Uprighting Horizontally Impacted Mandibular Second Molars Using Orthodontic Microimplant Anchorage

2019 ◽  
Vol 43 (1) ◽  
pp. 56-63 ◽  
Author(s):  
Ki-Jun Kim ◽  
Jae Hyun Park ◽  
Mi-Jung Kim ◽  
Hong-Ik Jang ◽  
Jong-Moon Chae

Treatment of horizontally and deeply impacted mandibular molars is challenging for both orthodontists and oral surgeons because of the limited access and anchorage control. We report on two patients who had horizontally and mesially impacted mandibular second molars (MM2s). Both patients were treated by a surgical orthodontic approach, and the crowns of the impacted teeth were brought into the arches by closed forced eruption. Mesially impacted MM2s were uprighted with orthodontic microimplants, inserted in the retromolar area, and then moved into their ideal position. The first patient was in an active growing stage, while the second patient was beyond the active growing stage. Therefore posterior available space (PAS) should be analyzed before treatment of impacted MM2s to prevent periodontal problems after uprighting of impacted teeth. If PAS is not enough for uprighting impacted MM2s, alternative treatment should be considered based on the stage of growth.

2017 ◽  
Vol 7 ◽  
pp. 248-249
Author(s):  
Rohit A. Minase ◽  
Wasundhara A. Bhad ◽  
Umal Hiralal Doshi

Forced eruption of an impacted tooth necessitates a firm and versatile attachment for force application. The present article describes a simple modification of NiTi closed coil spring called W spring for predictable forced eruption of impacted teeth.


2021 ◽  
pp. 1-6
Author(s):  
Mhd. Azhar Ibrahim Kharsa ◽  

Introduction and Purpose: Treatment of impacted teeth in orthodontics is crucially important, as clinician is supposed to manage such cases in his/her daily practice. However, impaction cases can be so complicated especially when other factors interfere within their treatments such as anatomical locations of the impacted teeth, surgical considerations and Orthodontic Traction difficulties. The management of impacted teeth in orthodontic practice varies widely from extraction of the impacted tooth to forced orthodontic eruption. Orthodontic eruption varies between closed or open techniques that must be determined for each case, per se. Materials and Methods: One hundred fifty one impacted teeth cases were followed up, classified by their techniques as to register the results statistically. The approaches for handling the impacted teeth were open forced eruption “as window or APF Apically Positioned Flap”, closed forced eruption, negligence and extraction when indicated. Bonding with Light Cure orthodontic composite was used for all cases of forced eruption. The used Device had been Mini LED, Acteron, Li-ION 3.7V, 2500mAh. Time of Exposure 20 Second. The traction attachments had been either Titanium Button and Chain (Watted) Dentaurum, or conventional Buttons (with ligature wires or elastics). This research discusses the prognosis of impacted teeth, the approaches of the orthodontic forced eruption and when to expose, extract or even “neglect”! The article does not recommend one treatment plan for all cases, in contrary; it urges the reader to search more for innovative solutions whenever such cases come across. Results and Conclusion: It is recommended that the decision regarding orthodontic forced eruption (closed or open), or extraction be based on evaluation of each independent case. In spite of the result of this research that 126 cases of the 151 screened cases had been treated successfully by orthodontic forced eruption, but complications such ankylosis, resorption, eruption failure and periodontal pockets need to be taken into account. Another complication can often be encountered that is bonding failures, especially in closed force eruption. However, the new bonding materials and the improved techniques have helped to overcome such a problem. Finally, the more precise the location and position of the impacted tooth is known, the easier the procedure becomes.


2015 ◽  
Vol 20 (2) ◽  
pp. 90-99 ◽  
Author(s):  
Amirfarhang Miresmaeili ◽  
Nasrin Farhadian ◽  
Vahid Mollabashi ◽  
Faezeh Yousefi

AIM: This study aims at examining the difficulty in performing forced eruption of impacted maxillary canines, using CBCT information and according to experienced orthodontist's opinion. The second aim was to find the most important factors related to this decision. METHODS: Based on a careful literature review on impacted maxillary canines, ten main factors were selected to assess difficulties associated with impacted teeth. Thirty six consecutive patients with 50 impacted maxillary canines were examined and variables were measured for each impacted tooth using Dolphin 3D software. Ten orthodontists assessed the radiographs of teeth and provided their opinion on the difficulty in bringing impacted teeth into occlusion named subjective degree of difficulty (SDD). The correlation established between mean SDD of each tooth and measured variables were analyzed by means of linear regression. RESULTS: Mean SDD was 6.45 ± 1.22 for all 50 teeth. Linear regression showed a high coefficient of correlation between mean SDD and age, dilacerations, vertical height, angulation and horizontal overlap (P < 0.05). CONCLUSION: To predict the difficulty of impacted maxillary canines forced eruption, according to the opinion of experienced orthodontists, the factors age, dilaceration, angulation, overlap and vertical distance from the occlusal plane are the most important variables.


2013 ◽  
Vol 116 (2) ◽  
pp. 159-168 ◽  
Author(s):  
Sebastian Zingler ◽  
Ralf Erber ◽  
Christopher J. Lux ◽  
Robin Seeberger ◽  
Dirk Bister ◽  
...  

Author(s):  
Judson R. Landis ◽  
Simon Dinitz ◽  
Walter C. Reckless

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