The effect of 12 weeks of mechanical vibration on root resorption: a micro-CT study

Yılmaz, Hakan; Ozlu, Fethiye Cakmak; Türk, Tamer; Darendeliler, M. Ali

doi:10.1186/s40510-021-00369-1

Cited by 6 publications

(7 citation statements)

References 33 publications

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“…Root volume measurements were used to quantify root resorption, by comparing the remaining root volume with the control group. Numerous previous studies used micro-CT to evaluate root resorption [28,29]. The root volume did not change considerably in response to force exertion or vibration application in this present study.…”

Section: Discussionsupporting

confidence: 43%

Light orthodontic force with high-frequency vibration accelerates tooth movement with minimal root resorption in rats

et al. 2022

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To determine and compare the effects of high-frequency mechanical vibration (HFV) with light force and optimal force on the tooth movement and root resorption in rat model. Materials and MethodsSeventy-two sites in 36 male Wistar rats were randomly assigned using a split-mouth design to control (no force/no vibration) or experimental groups: HFV (125 Hz), light force (5 g), optimal force (10 g), light force with HFV, and optimal force with HFV for 14 and 21days. The amount of tooth movement, threedimensional root volume and root resorption area were assessed by micro-computed tomography and histomorphometric analysis. ResultsAdjunction of HFV with light force signi cantly increased the amount of tooth movement by 1.8-fold (p = 0.01), 2.0-fold (p = 0.01) at days 14 and 21 respectively. The HFV combine with optimal force signi cantly increased the amount of tooth movement by 2.1-fold (p = 0.01), 2.2-fold (p = 0.01) at days 14 and 21 respectively. The root volume in control (distobuccal root (DB): 0.60 ± 0.19 mm 3 , distopalatal root (DPa): 0.60 ± 0.07 mm 3 ) and HFV (DB: 0.60 ± 0.08 mm 3 , DPa: 0.59 ± 0.11 mm 3 ) were not different from the other experimental group (range from 0.44 ± 0.05 mm 3 to 0.60 ± 0.1 mm 3 ) with the lowest volume in optimal force group. ConclusionsAdjunction of HFV with orthodontic force signi cantly increased tooth movement without causing root resorption Clinical Relevance Using light force with HFV could help to identify alternative treatment option to reduce the risk of root resorption.

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Section: Discussionsupporting

confidence: 43%

Light orthodontic force with high-frequency vibration accelerates tooth movement with minimal root resorption in rats

et al. 2022

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“…Nine articles were selected for data extraction ( 13 , 129 , 134 , 135 , 130 , 36 , 131 , 132 , 133 ). All articles were published between 1986 and 2021.…”

Section: Resultsmentioning

confidence: 99%

Under pressure—mechanisms and risk factors for orthodontically induced inflammatory root resorption: a systematic review

Dawood

Kroeger

Chavda

et al. 2023

European Journal of Orthodontics

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Summary Background The application of orthodontic forces causes root resorption of variable severity with potentially severe clinical ramifications. Objective To systematically review reports on the pathophysiological mechanisms of orthodontically induced inflammatory root resorption (OIIRR) and the associated risk factors based on in vitro, experimental, and in vivo studies. Search methods We undertook an electronic search of four databases and a separate hand-search. Selection criteria Studies reporting on the effect of orthodontic forces with/without the addition of potential risk factors on OIIRR, including (1) gene expression in in-vitro studies, the incidence root resorption in (2) animal studies, and (3) human studies. Data collection and analysis Potential hits underwent a two-step selection, data extraction, quality assessment, and systematic appraisal performed by duplicate examiners. Results One hundred and eighteen articles met the eligibility criteria. Studies varied considerably in methodology, reporting of results, and variable risk of bias judgements. In summary, the variable evidence identified supports the notion that the application of orthodontic forces leads to (1) characteristic alterations of molecular expression profiles in vitro, (2) an increased rate of OIIRR in animal models, as well as (3) in human studies. Importantly, the additional presence of risk factors such as malocclusion, previous trauma, and medications like corticosteroids increased the severity of OIIRR, whilst other factors decreased its severity, including oral contraceptives, baicalin, and high caffeine. Conclusions Based on the systematically reviewed evidence, OIIRR seems to be an inevitable consequence of the application of orthodontic forces—with different risk factors modifying its severity. Our review has identified several molecular mechanisms that can help explain this link between orthodontic forces and OIIRR. Nevertheless, it must be noted that the available eligible literature was in part significantly confounded by bias and was characterized by substantial methodological heterogeneity, suggesting that the results of this systematic review should be interpreted with caution. Registration PROSPERO (CRD42021243431).

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“…However, only total Root Resorption values reached statistical significance. It was found that the PzC procedure resulted in a 44% average increase in RR compared with the control side [ 14 ].…”

Section: Discussionmentioning

confidence: 99%

An Assessment and Comparison of Root Resorption With Two Different Corticotomy Techniques During Anterior Teeth Retraction: A Split Mouth Prospective Clinical Study

Kabbur¹,

Kamaraj²,

Ramesh³

et al. 2023

Cureus

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The aim of this prospective split-mouth clinical study is to determine the apical root resorption of anterior teeth in patients with two different methods of corticotomy namely indentation and vertical corticotomy techniques. MethodsSixteen adult patients with bimaxillary protrusion requiring the need for extraction of the first premolars were included in the study. For each patient, the particular method of corticotomy technique was assigned randomly along with the side and the procedure was performed following which retraction forces were applied with the help of a closed coil Niti spring. The root resorption was recorded during the stage of space closure for which two cone beam computed tomography (CBCT) were taken, one before the retraction forces could be applied (T1) and one CBCT (T2) after the space closure had occurred. The apical root resorption was assessed and analyzed both linearly and volumetrically using the CBCT taken at T1 and T2. ResultsThere was root resorption present after the space closure was complete in both the maxillary and mandibular arches. The amount of root resorption that occurred in the indentation technique was slightly lesser as compared to the vertical corticotomy technique. ConclusionIndentation corticotomy cuts for accelerated tooth movement are considered to be a much safer, more effective method, lesser invasive to the surrounding tissues, technique sensitive, and good regional acceleratory phenomenon (RAP), with a Rapid healing process compared to the vertical corticotomy technique.

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The effect of 12 weeks of mechanical vibration on root resorption: a micro-CT study

Cited by 6 publications

References 33 publications

Light orthodontic force with high-frequency vibration accelerates tooth movement with minimal root resorption in rats

Light orthodontic force with high-frequency vibration accelerates tooth movement with minimal root resorption in rats

Under pressure—mechanisms and risk factors for orthodontically induced inflammatory root resorption: a systematic review

An Assessment and Comparison of Root Resorption With Two Different Corticotomy Techniques During Anterior Teeth Retraction: A Split Mouth Prospective Clinical Study

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