Intrusion of Maxillary Incisors Using Orthodontic Mini-Implants in an Adult Patient with Deep Bite and Excessive Gingival Display

2021 ◽  
Vol 11 (3) ◽  
pp. 218-227
Author(s):  
Sung-Kwon Choi
Keyword(s):  
Adult Patient ◽  
Deep Bite ◽  
Mini Implants ◽  
Maxillary Incisors

scholarly journals Comparison of anterior and posterior mini-implant-assisted maxillary incisor intrusion: Root resorption and treatment efficiency

2016 ◽  
Vol 86 (5) ◽  
pp. 746-752 ◽  
Author(s):  
Isil Aras ◽  
Ali V. Tuncer
Keyword(s):  
Root Resorption ◽  
T Test ◽  
Maxillary Incisor ◽  
Implant Loosening ◽  
Treatment Efficiency ◽  
Deep Bite ◽  
Mini Implants ◽  
Beta Titanium ◽  
The Mean ◽  
Maxillary Incisors

ABSTRACT Objective:  To compare, through cone-beam computed tomography (CBCT), the root resorption and treatment efficiency of two different mini-implant-assisted modalities in intruding the maxillary incisors. Materials and Methods:  Thirty-two adults who had deep bite and elongated maxillary incisors were randomly allocated to two groups: anterior mini-implant group (AMG) and posterior mini-implant group (PMG). In the AMG, approximately 40 g of force was applied per side with elastic chains from mini-implants placed between the lateral incisors and canines and in the PMG, with beta-titanium wires from mini-implants placed between the second premolars and first molars. This study was conducted on CBCT scans taken before intrusion and after 4 months of intrusion. Data were analyzed by means of a paired t-test, independent t-test, and Pearson’s correlation test. Results:  One patient was excluded from the AMG due to mini-implant loosening. While the incisors showed a significant reduction in length and volume, this amount was greater in the AMG, especially in the central incisors (P < .05). Together with the mean intrusion rates of 0.62 and 0.39 mm/mo in the AMG and PMG respectively, the center of resistance of the incisors showed distal movement with labial tipping; these changes were greater in the PMG (P < .001). Volumetric root resorption was correlated with the amount of intrusion (P < .05). Conclusions:  Intrusion anchoring from posterior mini-implants is preferred in cases of upright incisors, as the use of such mechanics directs the roots into the spongiosa where they undergo less root resorption and more labial tipping.

scholarly journals A prospective clinical trial of the effects produced by the Connecticut intrusion arch on the maxillary dental arch

2020 ◽  
Vol 90 (4) ◽  
pp. 500-506
Author(s):  
Alessandro Schwertner ◽  
Renato Rodrigues de Almeida ◽  
Renata Rodrigues de Almeida-Pedrin ◽  
Thais Maria Freire Fernandes ◽  
Paula Oltramari ◽  
...  
Keyword(s):  
Correction Method ◽  
Maxillary Incisor ◽  
Dental Arch ◽  
Deep Bite ◽  
Lateral Cephalograms ◽  
Distal Surface ◽  
The Mean ◽  
Maxillary Incisors ◽  
Group 2 ◽  
Group 1

ABSTRACT Objective To assess and compare the effects produced in the maxillary dental arch by means of Connecticut intrusion arch (CIA) with or without a cinch back on the distal end of the tube of the first molars. Materials and Methods This study included 44 patients with a mean age of 13.1 ± 1.8 years treated for deep bite with a CIA randomly divided into two groups: group 1 (G1), 22 patients with initial mean age of 12.72 ± 1.74 years treated with the CIA in the upper arch without a cinch back on the distal surface of the tube of the first molars, and group 2 (G2), 22 patients with an initial mean age of 13.67 ± 2.03 years treated with the CIA with a cinch back. Lateral cephalograms were available before treatment (T1) and after intrusion of maxillary incisors (T2). The mean treatment period was 5.5 ± 1.45 months. Intragroup and intergroup changes in the maxillary incisor and molar positions were analyzed by paired and independent t-tests associated with the Holm-Bonferroni correction method for multiple comparisons (P < .05). Results There were significant differences between groups in terms of maxillary incisor displacement. The maxillary incisors flared labially (2.17°) and proclined (1.68 mm) in group 1, whereas a palatal inclination (−1.99°) and retroclination (−1.13 mm) was observed in group 2. No significant differences were found for the molar positions between the groups. Conclusions The presence or absence of a distal bend in CIA affects incisor tipping and proclination during intrusion mechanics.

Comparison of the Effects of Varying Positions of Mini-implants on Intrusion of Maxillary Incisors-an In vivo Study

2018 ◽  
Vol 52 (1) ◽  
pp. 35-43
Author(s):  
Nikita Rajesh Tilekar ◽  
Vinit Swami ◽  
Anand Sabane ◽  
Veera Bhosale
Keyword(s):  
In Vivo Study ◽  
Mini Implants ◽  
Maxillary Incisors

scholarly journals Effects of mandibular incisor intrusion obtained using a conventional utility arch vs bone anchorage

2011 ◽  
Vol 81 (5) ◽  
pp. 767-775 ◽  
Author(s):  
Esen Aydoğdu ◽  
Ömür Polat Özsoy
Keyword(s):  
T Test ◽  
Wilcoxon Test ◽  
Mandibular Incisor ◽  
Deep Bite ◽  
Mini Implants ◽  
The Mean ◽  
Group 2 ◽  
Group 1 ◽  
Mandibular Incisors ◽  
Center Of Resistance

Abstract Objective: To compare the dentofacial effects of mandibular incisor intrusion using mini-implants with those of a conventional incisor intrusion mechanic, the utility arch. Materials and Methods: Twenty-six deep-bite patients were enrolled to one of the two groups. In group 1 the mandibular incisors were intruded using a 0.16 × 0.22–inch stainless-steel segmental wire connected to two mini-implants. In group 2 the mandibular incisor intrusion was performed using a conventional utility arch. Conventional lateral cephalometric radiographs were taken at pretreatment and at the end of intrusion. Thirty landmarks were identified to measure 23 linear and 20 angular measurements. Intragroup comparisons were made using a paired t-test or a Wilcoxon test. Intergroup comparisons were made using a Student's t-test or a Mann-Whitney U-test. Results: The duration of intrusion was 5 months for group 1 and 4 months for group 2. In the implant group, the mean amount of change was 0.4 mm/mo for the incisor tip and 0.3 mm/mo for the center of resistance, and in the utility arch group, the mean amount of change was 0.25 mm/mo for the incisor tip and 0.2 mm/mo for the center of resistance. The mandibular incisors showed an average protrusion of 7° in the implant group and 8° in the utility arch group. Conclusions: Incisor intrusion that was achieved using an implant-supported segmented archwire was no different than the movement achieved with a conventional intrusion utility arch. The only difference between the two methods was in the molar movement.

Treatment of a Class II Deep Bite Malocclusion Using Orthodontic Mini-Implants: Case Report

2019 ◽  
Vol 9 (4) ◽  
pp. 217-225
Author(s):  
Soo-Min Gil ◽  
Ji-Yea Lee ◽  
Sang-Cheol Kim ◽  
Kyung-Hwa Kang
Keyword(s):  
Case Report ◽  
Class Ii ◽  
Deep Bite ◽  
Mini Implants

scholarly journals Comparison of the Effects of Varying Positions of Mini-implants on Intrusion of Maxillary Incisors-an In vivo Study

2018 ◽  
Vol 52 (1) ◽  
pp. 35-43 ◽  
Author(s):  
Nikita Rajesh Tilekar ◽  
Vinit Swami ◽  
Anand Sabane ◽  
Veera Bhosale
Keyword(s):  
In Vivo Study ◽  
Mini Implants ◽  
Maxillary Incisors

scholarly journals Study of Stress Distribution in Maxillary Anterior Region during True Intrusion of Maxillary Incisors using Finite Element Methodology

2012 ◽  
Vol 1 (2) ◽  
pp. 89-92 ◽  
Author(s):  
Vinay Vadvadgi ◽  
Amit Bhardwaj ◽  
Sagar S Padmawar ◽  
Anup Belludi
Keyword(s):  
Finite Element ◽  
Stress Distribution ◽  
High Stress ◽  
Element Model ◽  
Anterior Region ◽  
Element Analysis ◽  
Posterior Teeth ◽  
Mini Implants ◽  
Maxillary Incisors ◽  
Finite Element Methodology

ABSTRACT Introduction One of the major challenges of fixed clinical orthodontics is the correction of deep overbite. Miniscrew implants are ideally suited for absolute intrusion because they make it possible to apply light continuous forces of known magnitudes without producing any reciprocal reactionary effect on posterior teeth. The purpose of this finite element method (FEM) study was to evaluate and compare the stresses generated in maxillary anterior region during absolute en masse intrusion of six maxillary teeth using mini-implants at strategic locations. Materials and methods Finite element model was generated using FEM software and on the same model finite element analysis was carried out to study the stress distribution in maxillary anterior region during true incisor intrusion. Results Soft bone and hard bone showed significantly high stress distribution in maxillary anterior region. Conclusion Stresses on the teeth, soft bone and hard bone, were concentrated more on and near the central incisors as compared to lateral incisors. This was probably because the point of force application was between the central incisors and away from the lateral incisors. How to cite this article Padmawar SS, Belludi A, Bhardwaj A, Vadvadgi V, Saini R. Study of Stress Distribution in Maxillary Anterior Region during True Intrusion of Maxillary Incisors using Finite Element Methodology. Int J Experiment Dent Sci 2012;1(2):89-92.

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