An evaluation of root resorption incident to orthodontic intrusion

Costopoulos, Greg; Nanda, Ravindra

doi:10.1016/s0889-5406(96)70140-3

Cited by 135 publications

(100 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Parker and Harris 26 found that incisor intrusion and apical displacement with lingual tipping are highly correlated with external root resorption compared to other types of tooth movement. Nanda and Costopoulos 27 found that low forces can cause dental intrusion sufficient to correct a deep bite with minimal apical resorption. Therefore, in our study, we used light continuous forces to bring about the desired tooth movement.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Skeletodental Changes Occurring during Deep Overbite Correction with Mini-Implant Anchorage System and the Utility Arches Reinforced by a Transpalatal Arch

Nayak¹,

Goyal²,

Godhrawala³

et al. 2011

JIOS

View full text Add to dashboard Cite

Deep overbite has potentially detrimental effects on mandibular and temporomandibular joint function and periodontal health as well as esthetics. Incisor intrusion can be achieved with various treatment modalities. The most commonly used is the utility arch technique. In mini-implant anchorage system, forces can be applied to produce tooth movement in any direction without detrimental reciprocal forces and does not depend on patient cooperation. Very few studies give a direct comparison between the effects of different types of incisor intrusion mechanics.The aims and objectives of the study were to determine the amount of true incisor intrusion and torque change of the incisors and the molar extrusion attained with mini-implants and utility arch during a 6-month observation period. Fourteen patients with deep bite were selected for the study and were divided equally into the two groups which were treated with utility arch, reinforced with transpalatal arch and miniimplants. Mini-implants were found to be superior as compared to utility arch for intrusion of incisors and there was minimal change of incisor inclination with microimplants. The difference in the extrusion seen is not statistically significant.

show abstract

Section: Discussionmentioning

confidence: 99%

Comparison of Skeletodental Changes Occurring during Deep Overbite Correction with Mini-Implant Anchorage System and the Utility Arches Reinforced by a Transpalatal Arch

Nayak¹,

Goyal²,

Godhrawala³

et al. 2011

JIOS

View full text Add to dashboard Cite

show abstract

“…In previous studies of root resorption occurring during maxillary incisor intrusion obtained with conventional methods and screened with periapical X-rays, resorption varied between 0.6 mm and 2.5 mm. [16][17][18][19][20] Using utility arches, McFadden et al 18 found 0.84 mm of intrusion but 1.84 mm of resorption after termination of treatment (28.8 6 7.4 months); Goel et al 19 observed 1.56 mm of root shortening for 1.60 mm of intrusion during a 4.32-month period. Using a Burstone intrusion arch, Costopoulos and Nanda 16 observed 0.6 mm of resorption after 1.9 mm of apical movement of C R over 4.6 months with intrusive forces of 15 g per teeth.…”

Section: Anterior Vs Posterior Mini-implant-assisted Incisor Intrusionmentioning

confidence: 99%

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

Aras

Tuncer

2016

The Angle Orthodontist

View full text Add to dashboard Cite

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 miniimplant 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. (Angle Orthod. 2016;86:746-752.)

show abstract

“…[2][3][4][5] The intrusive movement is subjected to a large risk of failure, predominantly apical root resorption and reduction of the alveolar bone height. 6,7 The occurrence and range of these failures depend on many issues, but periodontal status as well as force magnitude and direction are the major factors. Loading of the compromised periodontium with orthodontic forces produces different results than those achieved in patients with healthy periodontal support.…”

Section: Introductionmentioning

confidence: 99%

Orthodontic intrusion of periodontally-compromised maxillary incisors: 3-dimensional finite element method analysis

et al. 2017

View full text Add to dashboard Cite

Background. Loading of the compromised periodontium with orthodontic forces produces different results than those achieved in patients with healthy periodontal support. Determining the force value at a level preventing further deterioration of the patient's periodontal status, thus delivering the most precisely individualized "dose" of loading, seems to be crucial for the successful intrusion of teeth with reduced periodontal support.

show abstract

An evaluation of root resorption incident to orthodontic intrusion

Cited by 135 publications

References 15 publications

Comparison of Skeletodental Changes Occurring during Deep Overbite Correction with Mini-Implant Anchorage System and the Utility Arches Reinforced by a Transpalatal Arch

Comparison of Skeletodental Changes Occurring during Deep Overbite Correction with Mini-Implant Anchorage System and the Utility Arches Reinforced by a Transpalatal Arch

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

Orthodontic intrusion of periodontally-compromised maxillary incisors: 3-dimensional finite element method analysis

Contact Info

Product

Resources

About