scholarly journals Clinical Effect of CO2 Laser in Reducing Pain in Orthodontics

2008 ◽  
Vol 78 (2) ◽  
pp. 299-303 ◽  
Author(s):  
Koji Fujiyama ◽  
Toru Deguchi ◽  
Takashi Murakami ◽  
Akihito Fujii ◽  
Kazuhiko Kushima ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
Co2 Laser ◽  
Clinical Effect ◽  
Tooth Movement ◽  
Analog Scale ◽  
Orthodontic Force ◽  
Control Side ◽  
Force Application ◽  
Significant Difference ◽  
Blinded Study

Abstract Objective: To test the hypothesis that there is no difference in the pain associated with orthodontic force application after the application of local CO2 laser irradiation to the teeth involved. Materials and Methods: Separation modules were placed at the distal contacts of the maxillary first molars in 90 patients in this single-blinded study. In 60 of these patients (42 females and 18 males; mean age = 19.22 years) this was immediately followed by laser therapy. The other 30 patients (18 females and 12 males; mean age = 18.8 years) did not receive active laser irradiation. Patients were then instructed to rate their levels of pain on a visual analog scale over time, and the amount of tooth movement was analyzed. Results: Significant pain reductions were observed with laser treatment from immediately after insertion of separators through day 4, but no differences from the nonirradiated control side were noted thereafter. No significant difference was noted in the amount of tooth movement between the irradiated and nonirradiated group. Conclusions: The hypothesis was rejected. The results suggest that local CO2 laser irradiation will reduce pain associated with orthodontic force application without interfering with the tooth movement.

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 Microleakage of "Bulk-Fill" Composite Resin for Class II Restorations Pretreated With CO2 Laser in Deciduous Molars: An In Vitro Study

2019 ◽  
Vol 10 (4) ◽  
pp. 304-309
Author(s):  
Larissa Costa Santos ◽  
Ravana Angelini Sfalcin ◽  
Eugenio José Garcia ◽  
Fátima Antônia Aparecida Zanin ◽  
Aldo Brugnera Junior ◽  
...  
Keyword(s):  
Phosphoric Acid ◽  
Laser Irradiation ◽  
Co2 Laser ◽  
Class Ii ◽  
Composite Resins ◽  
Acid Etching ◽  
Dentin Hypersensitivity ◽  
Significant Difference ◽  
Acid Gel

Introduction: Microleakage has been reported to cause dentin hypersensitivity because of the passage of bacteria and their products through the restoration-tooth interface and is one of the main reasons for replacement of restorations. CO2 laser can be used for treatment of dentin hypersensitivity. Thus, this study aimed to evaluate in vitro the microleakage in composite restorations following surface pretreatment with acid etching and CO2 laser. Methods: Twelve human caries-free primary molars were selected. Class II cavities were prepared on occlusal mesial and occlusal distal surfaces. Specimens were randomly divided into four groups (n=6): Group 1 (G1) – 37% phosphoric acid gel etching + Beautiful-Bulk Restorative – Giomer (Shofu Inc); Group 2 (G2) – 37% phosphoric acid gel etching + SDR Bulk-Fill Flow (Dentsply); Group 3 (G3) – CO2 laser irradiation + Beautiful-Bulk Restorative – Giomer (Shofu Inc); Group 4 (G4) – CO2 laser irradiation + SDR Bulk-Fill Flow (Dentsply). Surfaces were restored with bonding agent (Natural Bond DE, DFL). Specimens were cut longitudinally and immersed in 0.5% methylene blue solution for 4 hours. Microleakage scores were assessed under a magnifying glass at x3,5 and qualitatively analyzed by scanning electron microscope (SEM). Data were analyzed using nonparametric Wilcoxon test (P < 0.05). Results: Scores prevailed between 0 and 2, however, no statistically significant difference was found among the groups (P= 0.05). Conclusion: It could be concluded that all composite resins bulk fill did not show significant difference among them regarding microleakage using either CO2 laser or 37% phosphoric acid etching.

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 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 &lt; .05), particularly on the buccal and lingual surfaces (P &lt; .05) and the middle third of the root (P &lt; .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 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.

Effects of CO2 Laser Irradiation of the Gingiva During Tooth Movement

2012 ◽  
pp. 355-358
Author(s):  
Masahiro Seiryu ◽  
Toru Deguchi ◽  
Koji Fujiyama ◽  
Yuichi Sakai ◽  
Takayoshi Daimaruya ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
Co2 Laser ◽  
Tooth Movement

Effects of CO2 laser irradiation of the gingiva during tooth movement

2011 ◽  
Vol 70 (4) ◽  
pp. 123-124
Author(s):  
Masahiro Seiryu ◽  
Toru Deguchi ◽  
Koji Fujiyama ◽  
Yuichi Sakai ◽  
Takayoshi Daimaruya ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
Co2 Laser ◽  
Tooth Movement

scholarly journals Evaluation of the Effect of Micro-osteoperforations versus Piezopuncture on the Rate of Orthodontic Tooth Movement Associated with Canine Retraction

2021 ◽  
Vol 9 (D) ◽  
pp. 113-119
Author(s):  
Tarek Farag ◽  
Wael Mohamed Mubarak Refai ◽  
Ahmed Nasef ◽  
Omnia A. Elhiny ◽  
Ahmed Sh. Hashem
Keyword(s):  
Tooth Movement ◽  
Orthodontic Tooth Movement ◽  
Contralateral Side ◽  
T Test ◽  
Canine Retraction ◽  
Control Side ◽  
Significant Difference ◽  
Group A ◽  
Group B ◽  
And Control

AIM: The aim of the study was to investigate the effectiveness of using micro-osteoperforations (MOPs) or piezocision in accelerating tooth movement, during canine retraction, compared to standard canine retraction. PATIENTS AND METHODS: A split-mouth study design was carried out with two Groups A and B. Each group contained 10 patients; in each patient, one side was used as a control side and the contralateral side received either MOPs (Group A) or piezocision (Group B). The assessment data were collected by direct intraoral measurements, every 2 weeks, over a 3 months retraction period. RESULTS: Independent t-test, paired t-test, and ANOVA were used to analyze the results. In Group A, there was a statistically significant difference between the study and control sides (p < 0.001) with a total of 4.2 ± 0.5 mm canine retraction in the MOPs assisted canine retraction side versus a 2.8 ± 0.2 mm total canine retraction in the control side. For Group B, there was a statistically significant difference between the study and control sides (p < 0.001) with a total of 3.6 ± 0.4 mm canine retraction in the piezocision-assisted canine retraction side versus a 2.8 ± 0.2 mm total canine retraction in the control. CONCLUSION: MOPs and piezocision techniques accelerated the rate of canine retraction during orthodontic treatment, with the MOPs being slightly more effective.

scholarly journals Evaluation of the effects of cotton roll-biting on debonding pain: a split-mouth study

2021 ◽  
Vol 8 (1) ◽  
pp. 2-7
Author(s):  
Fatih Celebi
Keyword(s):  
Statistical Analysis ◽  
Average Amount ◽  
Analog Scale ◽  
Unpleasant Sensation ◽  
Control Side ◽  
Pain Scores ◽  
Significant Difference ◽  
Gender Groups ◽  
And Control ◽  
Cotton Roll

Introduction: Debonding pain is an unpleasant sensation that is frequently encountered during debonding procedure. Aim of the study: To investigate the effectiveness of cotton roll-biting on pain caused by the debonding procedure. Materials and methods: 102 patients (61 females, 41 males) who were at the debonding stage in orthodontic treatment were included in the research. The study was planned using a split-mouth design: one side of the jaw was the study, and the other side was the control. The anxiety level of participants was measured before debonding. On the study side, debonding was performed while patients were biting a cotton roll. On the control side, debonding was implemented as a routine debonding procedure. Study and control sides were assigned differently in each successive patient. The debonding pain of each tooth was recorded using the Visual Analog Scale prepared separately for each tooth. Shapiro–Wilk and Mann–Whitney U tests were used for statistical analysis. For both gender groups, patients were sequenced according to the average amount of pain per tooth. Subsequently, statistical analysis was repeated by using 50% of patients suffering more pain. Results: In the lower second premolar tooth, a statistically significant difference was detected. Pain scores were statistically higher in the study side for this tooth. No statistically significant differences were found for all other teeth. Conclusions: Cotton roll-biting has no alleviating effect on debonding pain. When debonding is performed gently using a squeezing action without applying torsional forces, additional pain relief methods are not required.

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