scholarly journals The effect of toothpastes with bleaching agents on the force decay of elastomeric orthodontic chains

2017 ◽  
Vol 11 (04) ◽  
pp. 427-431 ◽  
Author(s):  
Mohammad Behnaz ◽  
Kazem Dalaie ◽  
Sepanta Hosseinpour ◽  
Fatemeh Namvar ◽  
Leila Kazemi
Keyword(s):  
Water Solution ◽  
Initial Time ◽  
Control Group ◽  
Distilled Water ◽  
Force Decay ◽  
Significant Difference ◽  
Initial Time Point ◽  
The Difference ◽  
Elastomeric Chains

ABSTRACT Objective: The aim of this study was to evaluate the effect of agents available in whitening toothpastes (Crest® and Sensodyne®) in vitro on the force decay of elastomeric chains used in orthodontics. Materials and Methods: A total of 300 specimens of elastomeric chains were divided into five groups (n = 60) and were evaluated. These groups included (1) the regular Crest® toothpaste and distilled water solution, (2) whitening Crest® toothpaste and distilled water solution, (3) regular Sensodyne® toothpaste and distilled water solution, (4) whitening Sensodyne® toothpaste and distilled water solution, and (5) distilled water as a control group. The samples' force was measured using Instron at intervals of 0, 1, 7, 14, 21, and 28 days. Data were analyzed by SPSS software. Results: At the initial time point, the difference in the force values of elastomeric chain between any of the groups was not significant (P > 0.05). On the 1st day, there was a significant difference (P < 0.05) between all groups except the groups of whitening Crest®, regular, and whitening Sensodyne® (P > 0.05). On days 7, 14, and 28, the rate of decline for all groups was statistically significant (P < 0.05). Conclusions: According to the results obtained in the present study, it seems that toothpastes without whitening agents have less effect on force decay of elastomeric chain over time.

scholarly journals Effect of Bleaching Mouthwash on Force Decay of Orthodontic Elastomeric Chains

2018 ◽  
Vol 19 (2) ◽  
pp. 221-225 ◽  
Author(s):  
Mohammad Behnaz ◽  
Fatemeh Namvar ◽  
Setareh Sohrabi ◽  
Mina Parishanian
Keyword(s):  
Sodium Fluoride ◽  
Artificial Saliva ◽  
Test Group ◽  
Clinical Problem ◽  
Control Group ◽  
Force Decay ◽  
Custom Made ◽  
The Difference ◽  
Elastomeric Chains

ABSTRACT Introduction Force decay elastomeric chains are significant, and it is a clinical problem. Aim The aim of this study was to evaluate the effects of bleaching agent in the mouthwash on the force decay of orthodontic chains. Materials and methods In this experimental study, 160 gray closed elastomeric chains were randomly divided into three groups (one control and two test groups). Four loops of chains were stretched for 25 mm on custom-made jig. Control group specimens were immersed in artificial saliva during the test period. Test group specimens were immersed twice a day for 30 seconds in the whitening (LISTERINE® HEALTHY WHITE™) and daily sodium fluoride (LISTERINE® TOTAL CARE ZERO) mouthwashes. All specimens were immersed in artificial saliva at 37°C. Force was measured at different time points (initial, 1, 7, 14, 21, 28 days). Statistical analysis was performed by two-way analysis of variance (ANOVA) and Bonferroni methods (α = 0.05). Results Force of elastomeric chains was decreased dramatically in all groups during the experiment. After 24 hours, force was decreased by 42.18, 48.34, and 53.38% in control group, daily, and bleaching mouthwash groups respectively. The corresponding numbers after 4 weeks were 66.30, 76.73, and 86.48. The difference between three groups at days 1 and 28 was statistically significant (p < 0.05). Conclusion Within the limitations of the current in vitro study, bleaching and sodium fluoride mouthwashes could cause force decay of orthodontic elastomeric chains. Whitening mouthwash is more weakening for elastomeric chains. Clinical significance Use of whitening mouthwash by orthodontic patients could decrease the force of elastomeric chains, so it could be recommended to use them for a short time. How to cite this article Behnaz M, Namvar F, Sohrabi S, Parishanian M. Effect of Bleaching Mouthwash on Force Decay of Orthodontic Elastomeric Chains. J Contemp Dent Pract 2018;19(2):221-225.

scholarly journals Effect of Aerated Drinks on Force Decay Properties of Elastomeric Chains: An In Vitro Study

2011 ◽  
Vol 1 (1) ◽  
pp. 20-23
Author(s):  
Reena R Kumar ◽  
Mayank Gahlot ◽  
Nameeta Kaur ◽  
Anil Miglani
Keyword(s):  
In Vitro Study ◽  
Acrylic Resin ◽  
Distilled Water ◽  
Water Control ◽  
Orthodontic Space Closure ◽  
Force Decay ◽  
Space Closure ◽  
Significant Difference ◽  
Elastomeric Chains

Objective: To evaluate the effect of three commercially available aerated drinks on percentage of force decay of elastomeric chains used for orthodontic space closure. Materials & Method: Commercially available closed grey and clear elastomeric chains from two manufacturers were used in the study. The test solutions were distilled water (control), popular lemon based aerated drink, an orange based aerated drink and an aerated cola drink. Four acrylic resin jigs were constructed to provide a framework to simulate the distance between the permanent canine and first molar. The elastomeric chains were stretched and engaged between the two attachments. Jig I, II and III were immersed in the cola, orange and aerated lemon drink respectively for a period of two hours daily. Jig IV (control) was immersed in distilled water. Force levels were evaluated at the time intervals of 0 hours, 2 hrs, 12 hrs, 24 hrs, 3 days, 5 days and 7 days with a mechanical force gauge. Result: Force decay was statistically significant at T1 i.e. 2 hrs post immersion for all drinks compared. This decay was the highest for the elastomeric chains immersed in orange based drink followed by cola, lemon and the control. There was no significant difference between the two tested elastomeric chains. Conclusion: History recording should take cognizance of consumption of aerated drinks and their effect on orthodontic space closure.

scholarly journals The effect of alcohol-containing mouthwash and alcohol-free mouthwash towards the power chains force decay

2017 ◽  
Vol 29 (3) ◽  
Author(s):  
Willem Santana ◽  
Bergman Thahar ◽  
Endah Mardiati ◽  
Jono Salim
Keyword(s):  
Orthodontic Treatment ◽  
Artificial Saliva ◽  
Chlorhexidine Gluconate ◽  
Comparative Approach ◽  
Control Group ◽  
Force Decay ◽  
Significant Difference ◽  
The Common ◽  
Common Device

Introduction: Power chains is the common device used in fixed orthodontic treatment. Force decay in power chains is a problem that can affect the teeth movement due to a continuous force cannot be maintained. Force decay in power chain can be affected by the use of alcohol-containing mouthwash or alcohol-free mouthwash. The objective of this study was to determine the effect of alcoholic-containing mouthwash, alcohol-free mouthwash, and artificial saliva towards the power chains force decay. Methods: This research was an experimental analytic laboratory in-vitro with the comparative approach. The sample in this study were 40 power chain, short A (SA); 40 power chain, short B (SB); 40 power chain, long A (LA); and 40 power chain, long B (LB), which divided into 5 groups that were consecutively exposed to the artificial saliva as control group; Minosep® with 0.1% of chlorhexidine gluconate; Listerine® with 0% of alcohol; Hexadol® with 9% of alcohol; and Listerine® with 26.9% of alcohol. The measurement of force decay was performed with digital force gauge on day 0, 1, 14, and 28. The statistical analysis was done by using the Wilcoxon and Mann-Whitney tests. Result: There was a significant difference (p<0.05) between the force decay of power chain that exposed to the alcohol-containing mouthwash, alcohol-free mouthwash, and the artificial saliva. Conclusion: The force decay level of power chain that exposed to an alcohol-containing mouthwash was higher compared to the force decay level of power chain that exposed to an alcohol-free mouthwash and an artificial saliva.

scholarly journals Comparison of force decay pattern in orthodontic elastomeric chains and NiTi closed coil springs, affected by five different mouthwashes: An in vitro Study

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Amir Hossein Mirhashemi ◽  
Niloofar Habibi Khameneh ◽  
Keyvan Shahpoorzadeh ◽  
Atefe Saffar Shahroudi
Keyword(s):  
Reduction Rate ◽  
In Vitro Study ◽  
Vitro Study ◽  
Control Group ◽  
Force Decay ◽  
Decay Pattern ◽  
Force Reduction ◽  
Initial Force ◽  
Elastomeric Chains

Background: The aim of this study was to compare the force decay pattern of elastomeric chains and NiTi coil springs which were exposed to five different commercially available mouthwashes.Methods: In this in vitro study, 60 pieces of elastomeric chain (EC) and 60 NiTi closed coil springs (CS) were divided into 6 groups. The specimens were exposed to one of these mouthwashes twice a day for 60 seconds:  Listerine, chlorhexidine, Orthokin, Persica, fluoride and artificial saliva as the control group. The elastomeric chains and NiTi springs were stretched so that they exert the initial force of 250 gr. Their force was measured on the 1, 7, 14 and 28 following days by means of a digital gauge.Results: Elastomeric chains and coil springs had force decrease over time, but EC' force reduction was greater with the highest reduction rate in the first week. However, in the CS group, the force decrease wasn't statistically significant in the first two weeks.  After 28 days in the control groups, 49.8% of the initial force was remained in ECs while the value was 93.3% for CSs. In comparison between mouthwashes, in EC groups, in all mouthwashes except Persica, the remained force was statistically less than control group.Conclusion: Force degradation of elastomeric chains could be exacerbated by use of mouthwashes. About coil springs, force decay was also observed. However, it was not statistically significant. Force reduction was detectable after four weeks of coil springs usage, but in EC groups, the greatest reduction was after the first week.  

The Environmental Influence of Light Coke™, Phosphoric Acid, and Citric Acid on Elastomeric Chains

2008 ◽  
Vol 9 (7) ◽  
pp. 17-24 ◽  
Author(s):  
Leandro Teixeira ◽  
Betina do Rosário Pereira ◽  
Thais Gelatti Bortoly ◽  
João Armando Brancher ◽  
Odilon Guariza-Filho
Keyword(s):  
Citric Acid ◽  
Phosphoric Acid ◽  
Tooth Movement ◽  
Environmental Influence ◽  
Artificial Saliva ◽  
Decay Rates ◽  
Control Group ◽  
Force Decay ◽  
Significant Difference ◽  
Elastomeric Chains

Abstract Aim The purpose of this study was to evaluate the in vitro effect of Light Coke™, phosphoric acid, and citric acid on the force decline pattern of two types of elastomeric chains. Methods and Materials One hundred sixty gray colored elastomeric chain modules, 80 Chainette (GAC) and 80 Sunburst™ (GAC) chains, were divided into four groups for immersion into Light Coke, phosphoric acid, citric acid, and artificial saliva. The initial stretched force of the elastomeric chains ranged from 220gf to 250gf. During the experiment, all elastomeric chains were kept immersed in artificial saliva at 37°C (pH≈6.24) to simulate the oral environment. To simulate daily consumption of Light Coke, the elastomeric chains were immersed in the solutions twice a day for 15 minutes. The control group was kept immersed in artificial saliva continuously with no further treatment. Force (gf) was measured with a Dial-Type dynamometer (Dentaurum®), initially (baseline), 24 hours, 7, 14, and 21 days. Data were analyzed using the Tukey test at a 5% level of probability. Results A statistically significant reduction on the force produced by the elastomeric chains was seen at different time points. The greatest reduction in force occurred in the first 24 hours (p=0.01). Conclusion Force decay of the Chainette elastomeric chains were lower than the Sunburst™ chain (p<0.05). The immersion treatments caused no statistically significant difference in force for either chain module (p>0.05). Clinical Significance Good elastomeric chain properties are necessary for effective tooth movement, and knowledge of force-decay rates is an important factor in achieving the best orthodontic outcome. Citation Teixeira L, Pereira BP, Bortoly TG, Brancher JA, Tanaka OM, Guariza-Filho O. The Environmental Influence of Light Coke™, Phosphoric Acid, and Citric Acid on Elastomeric Chains. J Contemp Dent Pract 2008 November; (9)7:017-024.

scholarly journals Influence of Toothbrush Abrasion and Surface Treatments on Roughness and Gloss of Polymer-Infiltrated Ceramics

Polymers ◽  
2021 ◽  
Vol 13 (21) ◽  
pp. 3694
Author(s):  
Nawaf Labban ◽  
Mohammad D. Al Al Amri ◽  
Sarah M Alnafaiy ◽  
Saleh M. Alhijji ◽  
Mohammad A. Alenizy ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Mean Value ◽  
Control Group ◽  
P Value ◽  
Distilled Water ◽  
Storage Medium ◽  
Significant Difference ◽  
Toothbrush Abrasion ◽  
Surface Gloss

The aim of this study was to compare the surface roughness and gloss of polymer-infiltrated ceramics after simulated in vitro toothbrushing in different storage mediums. Four polymer- infiltrated ceramics were evaluated, Lava ultimate (LU), Vita enamic (EN), Shofu (SH), and Crystal ultra (CU). The control group was a feldspathic ceramic, Vita Mark II (VM). One hundred and twenty specimens (12 × 14 × 2.5 mm) were prepared using a precision saw. For each material (n = 24), the specimens were allocated into two groups, polished and stained. The specimens of each group were stored (for 7 days) in either citric acid (0.2N) or distilled water. Data for surface gloss (ΔE*SCE-SCI) and roughness (Ra) were evaluated before (baseline) and after simulated toothbrushing. For toothbrushing simulation, a toothpaste slurry containing a toothpaste of 100 relative dentin abrasion (RDA) and 0.3 mL distilled water was used for 3650 cycles (7300 strokes) for each specimen. Data were analyzed using t-test and ANOVA. A p-value of ≤ to 0.05 was considered significant. The highest mean value of surface gloss was identified in CU (stained—water) (4.3 (0.47)) (ΔE*) and EN (stained—acid) (4.3 (1.00)) (ΔE*) specimens, whereas the lowest mean value was shown by SH (stained—acid) (2.04 (0.42)) (ΔE*) samples. The highest mean value of surface roughness was observed in SH (0.40 (0.99)) Ra (stained—acid) whereas the lowest in VM (0.13 (0.039)) Ra (polished—water). A significant difference (p < 0.05) was observed in surface roughness and gloss between the materials with simulated toothbrushing, except in VM and LU, respectively. Therefore, it can be concluded that simulated toothbrushing impacts on surface roughness and gloss, irrespective of the storage medium.

scholarly journals Force Decay Characteristics of commonly used Elastomeric Chains on Exposure to various Mouth Rinses with different Alcohol Concentration: An in vitro Study

2017 ◽  
Vol 18 (9) ◽  
pp. 812-820
Author(s):  
M Mohamed Ramees ◽  
Esther A Abraham ◽  
KK Manjusha ◽  
A Nishad ◽  
S Ramachandraiah
Keyword(s):  
Artificial Saliva ◽  
In Vitro Study ◽  
Total Sample ◽  
Alcohol Concentration ◽  
Alcohol Mixture ◽  
Mouth Rinses ◽  
Force Decay ◽  
The Difference ◽  
Elastomeric Chains

ABSTRACT Aim The aim of this study was to test the effect of varying alcohol concentrations of various commercially available mouthwashes on force decay of elastomeric chains in prestretched and unstretched condition. Materials and methods A total of five specimen groups were tested with a total sample size of 180 specimens. A specimen is described as a three-link, short module, clear elastomeric chain (3M Unitek, Ortho Plus, Ortho Organizer). The control and test groups were independently submerged in separate 37°C artificial saliva to simulate the oral conditions. Effects of different solution groups and time (initial, 1, 7, 14, 21, and 28 days) on three different elastomeric chains and force (cN) are analyzed with two-way analysis of variance; pair-wise comparisons are done by t-test. Results Higher mean force was recorded initially followed by 24 hours >7 days >14 days >21 days and 28 days respectively. The difference in mean force decay among the different time intervals was found to be statistically significant (p < 0.001). Among the different solutions, higher mean force was recorded in 21.6% alcohol mixture > Listerine 8.38% > Wokadine > alcohol mixture 8.38% > artificial saliva. Conclusion In conclusion, alcohol-containing mouth rinses cause an increase in force decay of elastomeric chain over time. Clinical significance These mouth rinses are commonly recommended during orthodontic treatment. The orthodontist can know better that the alcohol content of the mouth rinses and the structural and molecular modification results in the decay of elastomeric chain. How to cite this article Ramachandraiah S, Sridharan K, Nishad A, Manjusha KK, Abraham EA, Ramees MM. Force Decay Characteristics of commonly used Elastomeric Chains on Exposure to various Mouth Rinses with different Alcohol Concentration: An in vitro Study. J Contemp Dent Pract 2017;18(9):812-820.

scholarly journals Effect of sodium fluoride in chlorhexidine mouthwashes on force decay and permanent deformation of orthodontic elastomeric chain

2021 ◽  
Vol 33 (1) ◽  
pp. 74
Author(s):  
Erliera Sufarnap ◽  
Kholidina Imanda Harahap ◽  
Terry Terry
Keyword(s):  
Sodium Fluoride ◽  
Artificial Saliva ◽  
Permanent Deformation ◽  
Control Group ◽  
P Value ◽  
Control Group Design ◽  
Force Decay ◽  
Significant Difference ◽  
Group 2 ◽  
Elastomeric Chains

Introduction: Orthodontic elastomeric chain is polyurethane elastomer that is widely used among orthodontists due to its functions. Chlorhexidine (CHX) and sodium fluoride (NaF) are listed in mouthwash composition which could affect the mechanical properties of the elastomeric chain. This study was aimed to analyze the effect of sodium fluoride in chlorhexidine mouthwashes on force decay and permanent deformation of orthodontic elastomeric chains. Methods: This research is an experimental analytic laboratory with pretest-posttest control group design. 150 samples of orthodontic chains were divided into three groups. Group 1: artificial saliva (control group); Group 2: 0,1% chlorhexidine gluconate solution (CHX); Group 3: 0,1% chlorhexidine digluconate with sodium fluoride solution (CHX-NaF). The orthodontic elastomeric chain was stretched and maintained at a standardized distance equivalent to a force of 300 g. The measurement of force decay and permanent deformation were performed with digital force gauge and digital caliper (0.01mm) at intervals of the first, seventh, fourteenth, twenty-first, and twenty-eighth days, respectively. Results: The force decay and permanent deformation of the elastomeric chain compared between three groups (control, CHX mouthwash and CHX+NaF mouthwash) showed did not have any significantly different (p-value>0,05) at the first, seventh, fourteenth, twenty-first, and twenty-eighth days, respectively. Conclusion: Sodium fluoride in chlorhexidine mouthwash showing no significant difference among saliva, CHX mouthwash and CHX+NaF mouthwash on force decay and permanent deformation of elastomeric chain.

Effects of Different Commercially Available Mouth Rinses on The Force Degradation of Orthodontic Elastomeric Chain

2020 ◽  
Vol 23 (2) ◽  
pp. 41-48
Author(s):  
Halima Mohammed Hassan ◽  
Anees Mahmood Mudhir
Keyword(s):  
Artificial Saliva ◽  
Testing Machine ◽  
Control Group ◽  
Time Intervals ◽  
Mouth Rinses ◽  
Force Decay ◽  
Significant Difference ◽  
Mouth Wash ◽  
And Control ◽  
Elastomeric Chains

Aim of the study: To evaluate the effects of different commercial type of mouthwashes on the force decay of the orthodontic elastomeric chain. Materials and methods: two hundred pieces of the elastomeric chains with two different configurations were divided into five groups (one control group and four different mouthwashes groups). after one-day immersion in artificial saliva then immersion in the specific mouthwashes (kin, Vitis, perio_aid, splat) for one minute twice daily and time intervals after 7 days, 14 days, 21 days, and 28 then washed and kept in artificial saliva at 37°C again. Force decay was calculated by Instron measured, digital force gauge - Instron universal testing machine then compared different force decay of elastic types. Results: A significant difference was found among between the four types of mouth wash and control group, according to close and short elastic chain the kin mouth wash was shows a significant difference (0.002), while splat mouthwash was shown a no significant difference. Conclusion: splat mouth wash groups showed no significant influence on the force degradation of the chain elastics tested. Kin mouthwash exhibit the highest force decay and found different significant effects.

scholarly journals Effect of exposure frequencies of pear juice on tooth whitening

2013 ◽  
Vol 25 (1) ◽  
Author(s):  
Gobalakrishna Munusamy ◽  
Endang Sukartini ◽  
Ayu Trisna Hayati
Keyword(s):  
Hydrogen Peroxide ◽  
Research Result ◽  
Control Group ◽  
Tooth Whitening ◽  
Whitening Effect ◽  
Significant Difference ◽  
Pear Juice ◽  
The Difference ◽  
Tooth Colour

Introduction: Tooth whitening (Bleaching) is a method to restore discoloured teeth to the original tooth colour with a chemical process. The materials used in the bleaching process are hydrogen peroxide, sodium perborates and carbamide peroxide. Pear fruit consists of hydrogen peroxide which is potentially an oxidizing compound that produces free radicals that react with unsaturated bonding teeth staining substances. This study aims to analyzed tooth whitening effect of exposure of pear juice with different frequencies. Methods: The type of research was true in vitro experiment where samples of 32 maxillary premolar teeth had cut the root to CEJ. The specimens divided into four groups. The first group was soaked in pear juice two times, the second group three times, a third group four times, and the fourth was the control group using only mineral water. Tooth colour was measure using a Spectrophometer, conducted before and after individual soaking. Results: The research result is tested with ANOVA and Newman- Keuls Range Test showed a significant difference of tooth whitening degree between the frequency exposure pear juice after 2 times soaking, 3 times soaking and 4 times soaking. Conclusion: There are difference degree of whitening from the difference frequency exposure of pear juice and Pear juice exposure of 4 times gives higher whitening effect compared to frequency of 3 times, 2 times and control group which is soaked in water.

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