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Original Article:
Effects of fluoridated tooth paste on medically erosive enamel in bonded primary teeth during maxillary arch expansion in cleft palate patient: An
in vitro
study
Aisha Akram Qasim, Baraa W Alani, Sarmad S Salih Al Qassar
J Orthodont Sci
2021, 10:17 (4 August 2021)
DOI
:10.4103/jos.JOS_67_20
AIMS:
This study searched the effects of fluoridated toothpaste on the enamel surface of deciduous molars eroded by different pediatric liquid medicaments which were encircled by orthodontic bands by gravimetric analysis method.
MATERIALS AND METHODS:
A suitable orthodontic band was used to band each of the 110 non-carious exfoliated deciduous molars, and stored in artificial saliva. These teeth were divided randomly into fluoridated and non-fluoridated groups (50 teeth each), and 10 teeth were used as negative controls. The enamel surface of the fluoridated group was swabbed with fluoridated toothpaste for 5 minutes twice daily. Each group was subdivided into five clusters of 10 teeth each according to the type of medication used which included paracetamol, Adol, amoxicillin, Medazole (ME), and Viton (VI) according to a specific immersion cycle. The erosion induced in the enamel for all the teeth was evaluated by gravimetric analysis for different intervals.
RESULTS:
The results showed that the weight loss increased with increasing exposure to liquid medication for all groups, but this increase was smaller in the fluoridated group. The highest mean weight loss after 28 days was in VI, and the lowest was in ME (0.145 [0.005] mg; 0.08 [0.008] mg), respectively.
CONCLUSION:
The fluoridated toothpaste significantly reduced medically eroded enamel by oral medical syrups. The gravimetric method is valid for the detection of erosion on banded deciduous molars.
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Original Article:
Reliability of mobile application-based cephalometric analysis for chair side evaluation of orthodontic patient in clinical practice
Maruf H Barbhuiya, Piush Kumar, Rachit Thakral, R Krishnapriya, Madhurima Bawa
J Orthodont Sci
2021, 10:16 (4 August 2021)
DOI
:10.4103/jos.JOS_28_20
OBJECTIVES:
The purpose of this study was to evaluate the accuracy and reliability of Mobile Application-Based Software for chair side cephalometric analysis.
MATERIALS AND METHOD:
Pretreatment lateral cephalograms of 20 patients (10 males and 10 females) were selected randomly and were traced manually and also using Application-based software (One Ceph). 20 angular and three linear parameters were measured both manually and with the software in all the patients. Inter and intra-operator reliability of one ceph was evaluated and the measured parameters were statistically compared with the manual method (Gold Standard).
RESULT:
The accuracy of angular and linear values was compared for all 23 parameters and our results showed no significant difference in the two methods used for most of the measurements. Three of the measurements [Angle of convexity (N-A; A-Pog); ANB angle; Upper Incisor to NA (Angular)] did show a statistically significant difference though these were clinically irrelevant.
CONCLUSION:
Application-based cephalometric analysis can be an effective clinical diagnostic tool for chair-side cephalometric evaluation of orthodontic patient.
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Original Article:
Accuracy of three different customized lingual orthodontic appliance systems in achieving predicted results on maxillary anterior teeth: A Retrospective Cohort Study
Floyd Fernandes, Ravindranath V Krishnan, Vivek Patni, Nikhilesh Vaid
J Orthodont Sci
2021, 10:15 (4 August 2021)
DOI
:10.4103/jos.JOS_45_20
OBJECTIVE:
To comparatively evaluate the ability of three different customized lingual appliance systems in achieving predicted results with respect to the mesiodistal crown tip, labiolingual crown inclination, in–out position of Maxillary permanent anterior teeth, and Maxillary arch form.
METHODS:
Three commercial houses: Incognito, iLingual 3D, and Lingual matrix were analysed in this study. The final sample size consisted of 42 cases. Fourteen digital prediction and posttreatment models of the maxillary arch were provided by three orthodontic offices each using a different system. Discrepancies between the prediction and posttreatment model in mesiodistal tip, labiolingual inclination, in–out position of anterior teeth, and arch form were analyzed.
RESULTS:
Incognito displayed the highest accuracy in all parameters except for in–out positioning. Lingual Matrix showed greater precision in achieving planned mesiodistal positions than labiolingual inclination while it was just the opposite for iLingual 3D. All three systems proved to be clinically reliable in achieving the predicted in–out positions of permanent Maxillary anterior teeth.
CONCLUSION:
These systems were considerably accurate in achieving planned treatment goals with minute deviations from the predicted value.
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Original Article:
The effect of fluoride gel on tensile properties, surface morphology and chemical composition of two types of orthodontic wires (an
in-vitro
study)
Amer A Taqa, Nada Nashee Al-Hafidh, Mohammed T Sulaiman Al-Abbood
J Orthodont Sci
2021, 10:14 (4 August 2021)
DOI
:10.4103/jos.JOS_55_20
OBJECTIVE:
Stainless steel and nickel-titanium wires are commonly used in fixed orthodontic appliances. Orthodontists often prescribe fluoride gel to avoid demineralization of teeth. This study investigated the effect of acidulated phosphate fluoride gel on the tensile properties, surface morphology and surface chemical composition of stainless steel and nickel-titanium wires.
METHODS:
Forty samples of stainless steel and nickel-titanium wires were examined, twenty for each type. Each wire type was divided into four subgroups. The first subgroup was not immersed in fluoride gel and considered as control, while the other three subgroups were immersed in 10 mL of fluoride gel for different periods of time. Then, the wires were removed from the gel, rinsed in a distilled water and left to dry. The ultimate tensile force of each wire was measured using a tensile testing machine. Scanning electron microscope (SEM) and energy-dispersive X-ray spectroscopy (EDX) were used to examine the control and 24 h immersed subgroups.
RESULTS:
One-way analysis of variance ANOVA showed that there were no significant differences in the ultimate tensile forces between control and fluoride-treated subgroups (
P
= 0.172 for SS wires and
P
= 0.672 for NiTi wires). However, changes in the surface morphology and elemental composition of wires were shown by the SEM and EDX.
CONCLUSIONS:
Although immersion of stainless steel and nickel-titanium wires in the fluoride gel did not affect their tensile properties, however, surface deterioration was evident. So, further investigations are recommended to study the effect of these changes on the oral health of patients.
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Original Article:
Comparison of two different initial archwires for tooth alignment during fixed orthodontic treatment–A randomized clinical trial
Shubhangi Jain, Payal Sharma, Divya Shetty
J Orthodont Sci
2021, 10:13 (4 August 2021)
DOI
:10.4103/jos.JOS_17_20
OBJECTIVES:
The aim of the study was to clinically evaluate and compare 0.016-inch superelastic nickel–titanium (NiTi) and 0.016-inch heat-activated nickel–titanium (NiTi) archwires in terms of alignment efficiency, root resorption, and pain intensity.
METHOD:
A total of 20 patients requiring fixed orthodontic treatment, having Little's irregularity index of 5–8, and requiring first premolar extractions were recruited. They were randomly allocated to receive two different archwires (0.016-inch superelastic NiTi or 0.016-inch thermoelastic NiTi). Good-quality impressions were taken of the lower arch before archwire placement (T0) and at every month after that till the alignment was complete. The rate of tooth alignment was measured on casts by determining Little's irregularity index. The pain experienced by the patient was assessed 24 hours and 1 week after the placement of the archwire on a visual analogue scale. Cone beam computed tomographic radiographs of lower anterior teeth were taken before and after alignment to assess root resorption. Data obtained were subjected to statistical analysis using the SPSS software (version 20.0). The level of significance was kept at 5%.
RESULTS:
The repeated measures ANOVA indicated that there was no significant difference in the aligning efficiency of superelastic and heat-activated NiTi wires. (p = 0.45). The Mann Whitney U test showed that superelastic NiTi wires had statistically significant higher VAS scores than heat-activated NiTi at 24 hours and 1-week interval (p < 0.05). Student's t-test indicated greater root resorption with superelastic NiTi but the difference was not statistically significant.
CONCLUSION:
Both the wires showed similar aligning efficiency and resulting root resorption. Superelastic NiTi was observed to produce more pain compared to heat-activated NiTi in the aligning phase.
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Original Article:
Effect of antimicrobial agents on the oral microflora in patients undergoing fixed orthodontic therapy–An
ex vivo
comparative analysis
Ankit Kumar Shahi, Piush Kumar, Divya Shetty, Anshi Jain, Payal Sharma, Monis Raza
J Orthodont Sci
2021, 10:12 (4 August 2021)
DOI
:10.4103/jos.JOS_46_20
Aim:
To evaluate and compare the efficacy of Ozonated Olive Oil Gel, Chlorhexidine gel, and Amflor (Fluoridated) mouthwash on reducing the count of Streptococcus mutans and Lactobacillus in patients undergoing fixed orthodontic therapy evaluated at different time intervals.
Methods:
Sixty patients undergoing orthodontic treatment were randomly divided into three groups (
n
= 20) based on antimicrobial agents used (Group 1: Ozonated olive oil gel; Group 2: Chlorhexidine gel; Group 3: Fluoridated mouthwash). Elastomeric modules from brackets were collected at T
0
(Fresh samples) and T
1
(2
nd
week) and T
2
(4
th
week) for assessment of the microbial growth. These collected modules were cultured and evaluated for the presence of Streptococcus Mutans and Lactobacilli and numbers of colonies were counted at each interval. Data obtained was subjected to statistical analysis using SPSS software (Version 20.0). Level of significance was kept at 5%. Intra-group and inter-group comparison between pretreatment, 2
nd
week and 4
th
week was done for each group using Wilcoxon signed rank test and Mann–Whitney U test.
Results:
There was presence of Streptococcus Mutans and Lactobacilli during orthodontic treatment which progressively increased from T
o
to T
1
and then declined from T
1
to T
2.
The colony counts were maximum for Fluoridated mouthwash and least for Chlorhexidine and the results were statistically significant (
P
< 0.05).
Conclusion:
All three antimicrobial agents used were effective against Streptococcus mutans and Lactobacillus. Chlorhexidine proved to be more efficacious whereas Fluoridated mouthwash proved to be least effective against both Streptococcus mutans and Lactobacillus bacteria.
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Month wise articles
Figures next to the month indicate the number of articles in that month
2023
September
[
25
]
April
[
11
]
March
[
24
]
2022
October
[
11
]
August
[
15
]
May
[
24
]
January
[
6
]
2021
October
[
7
]
August
[
6
]
July
[
5
]
February
[
6
]
2020
November
[
5
]
August
[
5
]
July
[
4
]
February
[
5
]
2019
October
[
4
]
August
[
5
]
May
[
5
]
February
[
5
]
2018
November
[
5
]
September
[
5
]
June
[
6
]
February
[
8
]
2017
October
[
7
]
June
[
6
]
May
[
6
]
January
[
5
]
2016
October
[
5
]
July
[
5
]
March
[
6
]
February
[
7
]
January
[
6
]
2015
July
[
7
]
April
[
4
]
January
[
6
]
2014
October
[
7
]
July
[
5
]
May
[
5
]
February
[
4
]
2013
December
[
5
]
October
[
5
]
July
[
5
]
April
[
5
]
January
[
4
]
2012
November
[
5
]
August
[
5
]
April
[
5
]
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© Journal of Orthodontic Science | Published by Wolters Kluwer -
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Online since 01 August, 2011