Effects of diabetes on tooth movement and root resorption after orthodontic force application in rats

2016 ◽  
Vol 19 (2) ◽  
pp. 83-92 ◽  
Author(s):  
K. Arita ◽  
H. Hotokezaka ◽  
M. Hashimoto ◽  
T. Nakano-Tajima ◽  
T. Kurohama ◽  
...  
Keyword(s):  
Tooth Movement ◽  
Root Resorption ◽  
Orthodontic Force ◽  
Force Application

scholarly journals Effect of continuous versus intermittent orthodontic forces on root resorption: A microcomputed tomography study

2018 ◽  
Vol 88 (6) ◽  
pp. 733-739 ◽  
Author(s):  
Nurhat Ozkalayci ◽  
Ersan Ilsay Karadeniz ◽  
Selma Elekdag-Turk ◽  
Tamer Turk ◽  
Lam L. Cheng ◽  
...  
Keyword(s):  
Tooth Movement ◽  
Root Resorption ◽  
Experimental Period ◽  
Microcomputed Tomography ◽  
Orthodontic Force ◽  
Rotational Movement ◽  
Force Application ◽  
Orthodontic Forces ◽  
Intermittent Regimen

ABSTRACT Objectives: To compare the extent of root resorption and the amount of tooth movement between continuous orthodontic force and intermittent orthodontic force that was activated in a similar way to a 4-week orthodontic adjustment period. Materials and Methods: Twenty-five patients who required the extraction of upper first premolars were recruited in this study. A buccally directed continuous force of 150 g was applied to the upper first premolar on one side for 15 weeks. A buccally directed intermittent force (28 days on, 7 days off) of the same magnitude was applied to the contralateral first premolar. The teeth were extracted at the end of the experimental period and processed for volumetric evaluations of resorption craters. The degree of tooth movement and rotation were measured on the study models. Results: Continuous force application displayed significantly higher root resorption volume than the intermittent force application (P < .05), particularly on the buccal and lingual surfaces (P < .05) and the middle third of the root (P < .01). There was more tipping and rotational movement in the continuous force group. Conclusions: In a 4-week orthodontic adjustment period, intermittent force significantly reduced the amount of root resorption compared with continuous force. Although there was less degree of tooth movement with intermittent force, unwanted rotational movement was avoided. This is crucial in patients who are predisposed to orthodontically induced inflammatory root resorption, and the use of this intermittent regimen should be considered.

scholarly journals Tooth movement and root resorption; The effect of ovariectomy on orthodontic force application in rats

2011 ◽  
Vol 81 (4) ◽  
pp. 570-577 ◽  
Author(s):  
Irin Sirisoontorn ◽  
Hitoshi Hotokezaka ◽  
Megumi Hashimoto ◽  
Carmen Gonzales ◽  
Suwannee Luppanapornlarp ◽  
...  
Keyword(s):  
Tooth Movement ◽  
Root Resorption ◽  
Orthodontic Force ◽  
Force Application

FINITE ELEMENT ANALYSIS OF ROOT RESORPTION ASSOCIATED WITH TOOTH MOVEMENT: A SYSTEMATIC REVIEW”

2021 ◽  
pp. 53-59
Author(s):  
Ajit Vikram Parihar ◽  
Shishupal Meena
Keyword(s):  
Systematic Review ◽  
Tooth Movement ◽  
Root Resorption ◽  
Cochrane Collaboration ◽  
Risk Of Bias ◽  
Cochrane Central Register ◽  
3D Fem ◽  
Element Analysis ◽  
Orthodontic Force ◽  
Nite Element

Background: The purpose of this systematic review was to examine the available evidence of root resorption during orthodontic treatment with different force systems using nite element analysis. Methods: The following electronic databases were searched for literature till June 2021 : Pro-Quest Dissertation Abstracts and Thesis database, Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, Google Scholar, Embase, US National Library of Medicine, and National Research Register. Root resorption studied under orthodontic forces, which simulated under various technique of nite element method (3D FEM) models were included in the study. The selected studies were assessed for the risk of bias using the Cochrane Collaboration risk of bias tool. The “trafc plot” and “weighted plot” risk of bias distribution were designed using the ROBVIS tool. The authors extracted and analyzed the data. Results: Fourteen studies fullled the inclusion criteria. The risks of biases were high for all studies.Data on quantity and direction of force applied, different type of root morphology and its various surface inuence on root resorption were extracted. The outcomes of the included studies were heterogeneous. Conclusion: Based on the current available literature, for reducing root resorption the excessive force may accelerate root resorption when it exceeds the typical human capillary blood pressure. Root resorption occurs more when extrusion/intrusion and tipping occur than when teeth actually move. A tooth with little or no orthodontic force load hardly shows any root resorption compared to one that has orthodontic force.

scholarly journals Effect of fluoride on root resorption following heavy and light orthodontic force application for 4 weeks and 12 weeks of retention

2012 ◽  
Vol 83 (3) ◽  
pp. 418-424 ◽  
Author(s):  
Ersan I. Karadeniz ◽  
Carmen Gonzales ◽  
Tamer Turk ◽  
Devrim Isci ◽  
Aynur M. Sahin-Saglam ◽  
...  
Keyword(s):  
Null Hypothesis ◽  
Root Resorption ◽  
Positive Control ◽  
Orthodontic Force ◽  
Control Side ◽  
Force Application ◽  
Fluoride Intake ◽  
High Fluoride ◽  
Experimental Side ◽  
Light Force

ABSTRACT Objective: To evaluate the null hypothesis that fluoride intake via drinking water has no effect on orthodontic root resorption in humans after orthodontic force application for 4 weeks and 12 weeks of retention. Materials and Methods: Forty-eight patients who required maxillary premolar extractions as part of their orthodontic treatment were selected from two cities in Turkey. These cities had a high and low fluoride concentration in public water of ≥2 pm and ≤0.05 pm, respectively. The patients were randomly separated into four groups of 12 each: group 1HH, high fluoride (≥2 ppm) and heavy force (225 g); group 2LH, low fluoride (≤0.05 ppm) and heavy force; group 3HL, high fluoride and light force (25 g); and group 4LL, low fluoride and light force. Light or heavy buccal tipping force was applied on the upper first premolars for 28 days. At day 28, the left premolars were extracted (positive control side); the right premolars (experimental side) were extracted after 12 weeks of retention. The samples were analyzed with microcomputed tomography. Results: On the positive control side, under heavy force application, the high fluoride groups exhibited less root resorption (P  =  .015). On the experimental side, it was found that fluoride reduced the total volume of root resorption craters; however, this effect was not statistically significant (P  =  .237). Moreover, the results revealed that under heavy force application experimental teeth exhibited more root resorption than positive control groups. Conclusion: The null hypothesis could not be rejected. High fluoride intake from public water did not have a beneficial effect on the severity of root resorption after a 4-week orthodontic force application and 12 weeks of passive retention.

scholarly journals Force Magnitude and Duration Effects on Amount of Tooth Movement and Root Resorption in the Rat Molar

2008 ◽  
Vol 78 (3) ◽  
pp. 502-509 ◽  
Author(s):  
Carmen Gonzales ◽  
Hitoshi Hotokezaka ◽  
Masako Yoshimatsu ◽  
Joseph H. Yozgatian ◽  
M. Ali Darendeliler ◽  
...  
Keyword(s):  
Laser Scanning ◽  
Tooth Movement ◽  
Root Resorption ◽  
Three Dimensional ◽  
Nickel Titanium ◽  
Second Molar ◽  
Force Application ◽  
Surface Areas ◽  
Force Magnitude ◽  
Group A

Abstract Objective: To test the hypothesis that there is no difference in the effect of different continuous moderate to very heavy forces on root resorption or amount of tooth movement. Materials and Methods: In the study, 10, 25, 50 and 100 g mesial force were applied to the maxillary first molars of rat using nickel titanium closed-coil springs for 3 days, 14 days, and 28 days. The molars were extracted and the surface areas of the root resorption craters were measured using scanning electron microscope. The depths of the root resorption craters were measured using a three-dimensional laser scanning microscope. Tooth movement of the maxillary first molar was measured in relation to the maxillary second molar on digitized lateral cephalometric radiographs. Results: Three days after force application, the tooth movement was not proportionally related to force magnitude. However, 14 days of force application resulted in significantly more tooth movement in the 10, 25, and 50 g force groups than in the 100 g force group. A force application of 10 g produced significantly more tooth movement at 28 days than all the other three force applications. The largest and deepest resorption craters were observed in the disto-buccal root followed by disto-palatal, middle-buccal, middle-palatal, and mesial root. Root resorption and tooth movement increased over time from 3 to 28 days. As heavier forces were applied, greater root resorption occurred. Conclusion: The hypothesis is rejected. The light mesially oriented forces, as applied in this study, produced more tooth movement and less root resorption compared with heavier forces.

scholarly journals Wilckodontics: The Periodontal Orthodontics

2018 ◽  
Vol 6 (02/03) ◽  
pp. 053-056
Author(s):  
Ritunja Singh ◽  
Shilpa Chourasia ◽  
Palak Sharma ◽  
Soumya Gupta ◽  
Gangesh Singh ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Surgical Technique ◽  
Bone Grafting ◽  
Orthodontic Treatment ◽  
Tooth Movement ◽  
Comprehensive Review ◽  
Orthodontic Force ◽  
Clinical Procedure ◽  
Force Application

AbstractPeriodontally accelerated osteogenic orthodontics (PAOO), also known as Wilckodontics, is a clinical procedure that combines corticotomy (a surgical technique in which the bone is cut, perforated, or mechanically altered), particulate bone grafting, and orthodontic force application. By this procedure, the teeth can be made to move through the bone rapidly by means of harnessing and stimulating the innate potential of the bone and utilizing tissue engineering principles. Once the tooth movement gets completed, bone rebuilds around the tooth, thereby reducing the time of orthodontic treatment from years to months. This article aims to present a comprehensive review about PAOO or Wilckodontics.

A new approach to accelerate orthodontic tooth movement in women: Orthodontic force application after ovulation

2010 ◽  
Vol 75 (4) ◽  
pp. 405-407 ◽  
Author(s):  
Xiaomei Xu ◽  
Qing Zhao ◽  
Siwei Yang ◽  
Guangxin Fu ◽  
Yangxi Chen
Keyword(s):  
Tooth Movement ◽  
Orthodontic Tooth Movement ◽  
New Approach ◽  
Orthodontic Force ◽  
Force Application

The effects of orthodontic tooth movement in endodontically treated teeth

2019 ◽  
pp. 12-15
Author(s):  
Sabrina Haque ◽  
Mehreen Zakir
Keyword(s):  
Root Canal ◽  
Orthodontic Treatment ◽  
Tooth Movement ◽  
Root Resorption ◽  
Orthodontic Tooth Movement ◽  
Dental Tissue ◽  
Endodontically Treated Teeth ◽  
Orthodontic Force ◽  
Treatment Application

There are no relevant contraindications to orthodontic treatment of previously endodontically treated teeth, considering the quality of the obturated teeth, the health of the periodontal membrane, along with careful application of orthodontic force. Although, there is usually some degree of reversible or transient pulpal inflammation  even  in  healthy  teeth  during  orthodontic  treatment,  application  of  light  and  intermittent orthodontic force will reduce the risks provided sufficient time is given to allow proper repair of the dental tissue.  However,  there  may  be  a  few  hazards  associated  with  the  treatment  of  endodontically  involved teeth, some of which mainly include root resorption and ankylosis. This article will show some cases of teeth which had undergone  root canal treatment prior to orthodontic management and further observed whether orthodontic tooth movement had caused any resorption in the root filled teeth.  Root canal treated teeth can be moved orthodontically to the same extent as vital teeth, providing, a controlled force applica- tion to avoid risk of inflammatory root resorption. Ban J Orthod & Dentofac Orthop, April 2017; Vol-7 (1-2), P.12-15

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