scholarly journals Applicative Characteristics of a New Zirconia Bracket with Multiple Slots

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Koutaro Maki ◽  
Katsuyoshi Futaki ◽  
Satoru Tanabe ◽  
Mariko Takahashi ◽  
Yuta Ichikawa ◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Tooth Movement ◽  
Early Stage ◽  
Control Group ◽  
Dental Arch ◽  
Movement Rate ◽  
Orthodontic Bracket ◽  
Visual Analogue Pain ◽  
Before And After ◽  
Tooth Movement Rate

We have developed a new orthodontic bracket with three slots with lubricative properties on the working surfaces and proposed a new orthodontic treatment system employing 0.012−0.014-inch Ni-Ti arch wires. We recruited 54 patients, of which 27 received treatment with the new zirconia bracket with multiple slots system (M group), and the others received treatment with standard edge-wise appliances (control group [C group]). We compared the (1) tooth movement rate at the early stage of leveling; (2) changes in the dental arch morphology before and after leveling; and (3) pain caused by orthodontic treatment. Student’st-test was used in all assessments. The tooth movement rate in the maxillomandibular dentition was higher in the M group. The basal arch width, anterior length, and the intercanine width in the maxillary dentition were not significantly different in the two groups; however, the intercanine width in the mandibular dentition was higher in the C group. In assessments of treatment-related pain, the visual analogue pain score was 56.0 mm and 22.6 mm in the C and M groups, respectively. A new zirconia bracket with multiple slots system provided better outcomes with respect to tooth movement rate, treatment period, and postoperative pain, thus indicating its effectiveness over conventional orthodontic systems.

scholarly journals Vibratory stimulation in non-growing patients and its effect on the orthodontic tooth movement

2021 ◽  
Vol 8 (1) ◽  
pp. 33
Author(s):  
Tanushree Sharma ◽  
Ankita Gupta ◽  
Aseem Sharma ◽  
Pulkit Vaid ◽  
Kamlesh Singh
Keyword(s):  
Tooth Movement ◽  
Orthodontic Tooth Movement ◽  
Control Group ◽  
P Value ◽  
Vibratory Stimulation ◽  
Movement Rate ◽  
Canine Retraction ◽  
And Control ◽  
Tooth Movement Rate ◽  
The Impact

<p><strong>Background:</strong> Objectives of the study were to determine the impact of vibratory stimulation in non-growing patients on the orthodontic tooth movement rate and to differentiate the orthodontic tooth movement rate in both experimental and control sides.</p><p><strong>Methods:</strong> 30 non-growing patients were selected for a split-mouth study with fixed appliance therapy orthodontic treatment undergoing bilateral first premolar extractions in maxillary arch. Type 1 active tiebacks were used to perform single canine retraction in all the patients. Vibratory stimulation was provided for 15 minutes daily with the help of Oral-B battery powered toothbrushes of 125 Hz frequency. Measurement was taken with calibrated digital vernier caliper clinically and OPG were taken at regular time intervals using grid method for the tooth movement calculation.</p><p><strong>Results:</strong> P value obtained by statistical calculation shows non-significant results in both experimental and control sides in non-growing patients.</p><p><strong>Conclusions:</strong> Cyclic loading in non-growing patients with fixed orthodontic appliance shows no change in orthodontic tooth movement in experimental and control group.</p>

scholarly journals Effects of pentagamavunon-0 (PGV-0) as alternative analgesics on orthodontic tooth movement in rats

2019 ◽  
Vol 31 (3) ◽  
pp. 152
Author(s):  
Cendrawasih Andusyana Farmasyanti ◽  
Anne Marie Kuijpers-Jagtman ◽  
Heni Susilowati ◽  
Edy Meiyanto
Keyword(s):  
Orthodontic Treatment ◽  
Tooth Movement ◽  
Orthodontic Tooth Movement ◽  
Positive Control ◽  
Analgesic Drug ◽  
Movement Rate ◽  
Treatment Groups ◽  
Male Wistar Rats ◽  
Post Hoc ◽  
Tooth Movement Rate

Introduction: Some analgesic drugs may have adverse effects on bone remodelling and, thus, on orthodontic tooth movement rate (OTM). GV-0 is synthesized by reacting vanillin and cyclopentanone catalyzed in acidic condition, and it has been revealed as a selective COX-2 inhibitor. This study was aimed to investigate the effect of pentagamavunon-0 (PGV-0), one of the curcumin analogues, on OTM. Methods: This study was conducted on 50 male Wistar rats (350-450 g) which were randomly divided into five groups (n = 10 each): 1) no treatment group (NT), 2) orthodontic treatment only (ORT), 3) ORT plus 0.4% sodium carboxymethyl cellulose (Na-CMC) analgesic carrier, 4) ORT plus 200 mg/kg BW Paracetamol (PCT) as the positive control, and 5) ORT plus PGV-0 (50 mg/kg BW (PGV-0). Results: Drug and day interaction was statistically significant on two-way ANOVA. Post-hoc analyses showed that OTM increased from day 3 to 7 in all orthodontic groups over the same distance (p>0.05). Maximum OTM was found on day 6, which was significantly farther than the distance on day 4. On day 7, OTM was less than on day 6. OTM in all orthodontic groups, including in the PGV-0 group, was higher than in the NT group (p<0.05). No differences was seen in OTM between PGV-0 group and other orthodontic groups (p>0.05). Post-hoc analysis (intra days) revealed that OTM in PGV-0 and other orthodontic treatment groups increased. Conclusion: After a single orthodontic force, PGV-0 does not inhibit tooth movement in rats from day 1 to day 7. Therefore, it is possible to develop PGV-0 as an alternative analgesics during orthodontic therapy.Keywords: Analgesic drug, orthodontics, tooth movement, curcumin.

scholarly journals Evaluation of IL1β and IL6 Gingival Crevicular Fluid Levels during the Early Phase of Orthodontic Tooth Movement in Adolescents and Young Adults

2021 ◽  
Vol 11 (2) ◽  
pp. 521
Author(s):  
Simina Chelărescu ◽  
Petra Șurlin ◽  
Mioara Decusară ◽  
Mădălina Oprică ◽  
Eugen Bud ◽  
...  
Keyword(s):  
Young Adults ◽  
Orthodontic Treatment ◽  
Tooth Movement ◽  
Gingival Crevicular Fluid ◽  
Early Stage ◽  
Statistical Tests ◽  
Orthodontic Tooth Movement ◽  
Adolescents And Young Adults ◽  
Periodontal Tissues ◽  
Crevicular Fluid

Background: The crevicular fluid analysis represents a useful diagnosis tool, with the help of which noninvasive cellular metabolic activity can be analyzed. The aim of the study is to investigate comparatively IL1β and IL6 in the gingival crevicular fluid of clinically healthy adolescents and young adults during the acute phase of orthodontic treatment. Methods: Gingival crevicular fluid was collected from 20 patients (aged between 11 and 28) undergoing orthodontic treatment. Measurements were taken before (T0) and after 24 h after distalization forces were activated (T1). IL1β and IL 6 were analyzed using Elisa tests. The statistical tests used were two-sided t tests. Results: Between the two time periods there was a significant raise both in the crevicular fluid rate (0.57 µL at T0 vs. 0.95 µL at T1, p = 0.001) and in IL1β levels (15.67 pg/µL at T0 vs. 27.94 pg/µL at T1, p = 0.009). We were able to identify IL6 only in a third of the sites. There is a significantly increased level of ILβ at T1 in adolescents, more than in young adults (42.96 pg/µL vs. 17.93 pg/µL, p = 0.006). Conclusions: In the early stage of orthodontic treatment, the periodontal tissues of adolescents are more responsive to orthodontic forces than those of young adults.

Changes of Periodontal Tissues Because of Orthodontic Treatment: A Retrospective Study

2021 ◽  
pp. 232020682110034
Author(s):  
Hamad Alzoman ◽  
Khalid Alamoud ◽  
Waad K. Alomran ◽  
Abdullazez Almudhi ◽  
Naif A. Bindayel
Keyword(s):  
Retrospective Study ◽  
Orthodontic Treatment ◽  
Tooth Movement ◽  
Positive Impact ◽  
Demographic Data ◽  
Gingival Recession ◽  
Confounding Factors ◽  
Crown Height ◽  
Periodontal Tissues ◽  
Before And After

Aim: To evaluate the periodontal status before and after orthodontic treatment and to analyze the confounding factors associated with it. Materials and Methods: The present retrospective study analyzed pre- and posttreatment records of a total of 60 patients. Intraoral digital photographs before and after the orthodontic treatment were used to measure the following three periodontal variables: (a) width of the keratinized gingiva, (b) gingival recession, and (c) the status of interdental papilla. The ImageJ 46 software imaging program was used to perform the required measurements. The clinical data were then analyzed in an association with the participants’ demographic data, the type of orthodontic tooth movement, and other confounding factors. The data obtained were manually entered into the statistical package and analyzed using a significance level set at P < .05. Descriptive statistics, paired t-tests, and Pearson’s correlation analysis were used to identify differences among the studied variables. Results: Among the 60 patients, the majority (66.7%) were females. Most cases of the treated malocclusion were Class II, and most patients underwent intrusion and retrusion movements. The width of keratinized gingiva increased for most sites of upper teeth. In contrast, the lower teeth showed a mix of improvement and compromised width of keratinized gingiva. As a measure of gingival recession, the difference of clinical crown height revealed the tendency toward a reduced clinical crown height for most sites. Upper left lateral incisors and canines showed significant values with regard to keratinized gingival width measurements and tooth movements such as extrusion and intrusion movements. Likewise, with regard to the clinical crown height, upper right central incisors showed significant differences when correlated with the interincisal angle, lower incisors to the mandibular plane, and upper incisors to the NA line. The upper lateral incisors also showed significant correlations to certain cephalometric measurements. Conclusions: The orthodontic treatment was found to exert a significantly positive impact on the surrounding periodontium, particularly in the upper canine areas. Likewise, various types of tooth movement were found to positively affect the periodontium.

scholarly journals Saliva Leptin Levels in Tooth Movement during Initial Stage of Orthodontic Alignment: A Pilot Study

2017 ◽  
Vol 16 ◽  
pp. 1-8
Author(s):  
Noraini Abu Bakar ◽  
Wisam Kamil ◽  
Lina Al Bayati ◽  
Basma Ezzat Mustafa
Keyword(s):  
Pilot Study ◽  
Mechanical Stress ◽  
Orthodontic Treatment ◽  
Tooth Movement ◽  
Orthodontic Tooth Movement ◽  
Biologically Active ◽  
Orthodontic Appliances ◽  
Initial Alignment ◽  
Periodontal Tissues ◽  
Before And After

Introduction: During orthodontic tooth movement, the early response of periodontal tissues to mechanical stress is an acute inflammatory reaction. Mechanical stress from orthodontic appliances is believed to induce cells in the periodontal ligament (PDL) to form biologically active substances, such as enzymes and cytokines, responsible for connective tissue remodeling (Nishijima Y et al 2006). Leptin, a polypeptide hormone has been classified as a cytokine (Zhang et al 1994). Earlier findings concluded that leptin at high local concentrations protects the host from inflammation and infection as well as maintaining bone levels. It has been also suggested that leptin plays a significant role in bone formation by its direct effect on osteoblasts (Alparslan et al 2010). This pilot study aimed to study leptin in saliva and its association with tooth movement during initial orthodontic alignment. Objectives: To determine if there are any differences in saliva leptin level before and after orthodontic alignment. Material and methods: Ten orthodontic patients (7 girls and 3 boys; mean age, 16.76 ± 1.1 years) with crowding (up to 5mm) that required orthodontic fixed appliances, on a non-extraction basis as part of the treatment plan, were recruited in this longitudinal study. Orthodontic study models were constructed at baseline and at 6- weeks after orthodontic treatment commenced. Full fixed orthodontic appliances with initial 0.014” Nickel Titanium archwire placed. The amount of crowding was measured, before and after initial alignment with an electronic digital caliper (Max-Cal, Japan Micrometer Ltd, Tokyo, Japan) with an accuracy of up to 0.01mm. Unstimulated morning saliva sample were collected at all visits, after at least an 8-hour period of fasting and no-toothbrushing. After centrifugation (4000x g;10min), the samples were stored at -25C and tested using Leptin Abnova LEP Human ELISA kit (KA3080) which was subsequently analyzed. Subjects’ periodontal health status was also monitored throughout the study. Ethical approval (ID IREC 262) was received on 7th April 2014 from International Islamic University Malaysia Research Ethics Committee (IREC). Results: Leptin concentration in saliva was significantly decreased in a time-dependant manner (t(9)=8.60, p<0.001), from before orthodontic treatment (7016.45± 425.15 pg/mL) and 6 weeks after bond-up (4901.92±  238.64 pg/mL). Conclusion: Leptin concentration in saliva is decreased during orthodontic tooth movement in initial alignment stage.

scholarly journals Comparison of Rate of Canine Retraction and Secondary Outcomes Associated With Conventional Fixed Orthodontic Treatment and Minimally Invasive Techniques (MOPs): A Randomized Control Trial

2020 ◽  
pp. 030157422096350
Author(s):  
Ajit Vikram Parihar ◽  
Shivam Verma ◽  
TP Chaturvedi ◽  
Naresh Kumar ◽  
A Kavin Prasanth ◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Tooth Movement ◽  
Root Resorption ◽  
Control Group ◽  
P Value ◽  
Pain Level ◽  
Canine Retraction ◽  
Significant Difference ◽  
Secondary Outcomes ◽  
Anchorage Loss

Introduction: The objective of the study was to assess the rate of canine retraction and secondary outcomes associated with conventional fixed orthodontic treatment (CFO) and CFO with micro-osteoperforation (CFO + MOP), that is, anchorage loss, root resorption, vitality of tooth, pain and discomfort level during the procedure. Methods: A total of 16 patients with Class II Division 1 malocclusion who required upper first premolar extraction with lower non-extraction/single incisor extraction were divided into the test group (MOP) and positive control group (CFO + MOP) for a split-mouth study. Both maxillary canines were retracted with nickel–titanium (NiTi) closed coil springs. Patients were reviewed after 24 hours, 7 days, 28 days, and 4, 8, and 16 weeks to assess the rate of tooth movement, anchorage loss, root resorption, vitality of tooth, pain and discomfort level. Results: There was a statistically significant difference in the rate of tooth movement between the CFO and CFO + MOP groups after the first 4 weeks ( P-value = .026), whereas no statistically significant difference was observed at 8, 12, and 16 weeks ( P-value = .33, .99, and .08, respectively). In the CFO group, there was no statistically significant difference in tooth movement between different time intervals ( P-value > .05). There was no significant difference in root resorption between the groups. The pain level was higher in the MOP group in the first 24 hours ( P-value < .05) after the procedure. Later on, the difference in pain level between the groups was not significant ( P-value > .05). The vitality of retracted canines in both groups was healthy. Conclusion: The study recommends that the CFO + MOP procedure has substantial potential to be used as an adjunct to the routine mechanotherapy for faster tooth movement, as it may reduce the treatment time by half in the first 4 weeks after the MOP procedure. There are no potential differences in anchorage loss, tipping, vitality, and apical and lateral root resorption between the CFO and CFO + MOP groups. This trial was registered at Clinical Trial Registry, India.

scholarly journals Comparison of Two Different Orthodontic Bracket Recycling Techniques

2016 ◽  
Vol 6 (2) ◽  
pp. 28-32
Author(s):  
Adith Venugopal ◽  
Harsh Tejani ◽  
Paolo Manzano ◽  
Ronaldo G Vergara
Keyword(s):  
Orthodontic Treatment ◽  
Testing Machine ◽  
Control Group ◽  
Industrialized Countries ◽  
Orthodontic Bracket ◽  
Sand Blasting ◽  
The People ◽  
Bond Strengths ◽  
The Cost ◽  
Bracket Base

Introduction: The cost of orthodontic treatment in most of the industrialized countries may considerably differ from those in third world countries. The lesser cost of orthodontic treatment, high pricing of orthodontic inventory and poor economic conditions of the people strengthen the notion of ‘recycling’ even more.Objectives: To compare the shear bond strengths of .022 slot pre-adjusted edgewise brackets with conventional mesh base design recycled by two different chair-side techniques, one being flaming/heating and other being sandblasting.Materials & Method: The sample involved eighty extracted human premolars with .022 slot pre-adjusted edgewise brackets (Orcmo, USA) bonded onto the lingual surface. After initial de-bonding the bracket base was studied under a scanning electron microscope at different magnifications for aperture size, mesh continuity and surface roughness. The brackets were re-bonded on to the labial surface of the same premolars and then debonded using a Universal Testing Machine to produce a shear force at the tooth bracket interface.Result: The study showed highest bond strengths with the control group (111.52 ± 49.90 N) and least bond strengths with the heating/flaming group (63.71 ± 22.43 N). Reduced aperture dimensions and loss of mesh continuity were characteristics of the Heating group. Sand Blasting showed significantly higher bond strengths (100.42 ± 39.42 N) with considerably rougher mesh surface texture compared to heating group.Conclusion: Sand blasting as a mode to reconditioned orthodontic bracket base provides a higher shear bond strength compared to orthodontic brackets reconditioned by heating/ flaming (p< .01).

scholarly journals Georgian legume crop extract as an effective remedy during oral cavity soft tissue inflammation

2020 ◽  
Vol 10 (1) ◽  
pp. 55
Author(s):  
Tamar Sanikidze ◽  
Irakli Chkhikvishvili ◽  
Nana Kipiani ◽  
Samson Mghebrishvili ◽  
Irina Barbakadze ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Oral Cavity ◽  
Control Group ◽  
Dental Arch ◽  
Mechanical Pressure ◽  
Tissue Inflammation ◽  
Legume Crop ◽  
Before And After ◽  
Soft Tissue Inflammation ◽  
The Impact

Background: Recovery of dental arch defects, related to insertion of a foreign bodies into the oral cavity, and the impact of mechanical pressure, allergic-toxic effects, and the related inflammatory and degenerative processes is one of the most urgent problems in dentistry.The purpose of the study was to evaluate the efficacy of Georgian bean extract tincture as mouthwash for patients using a lever system to correct deformities of the jaw and teeth.Methods: Twenty-eight patients (aged 12-25 years) with deformities of the jaw and teeth were studied. Patients were examined 6-8 months after the bracket system was installed, and before and after the use of tincture mouthwash for 10 days. Patients were randomly divided into 2 groups: the control group for the mouthwash used standard tincture ("Octenidol" Schulke and Mayr -Germany); the patients of the experimental group used tincture made from the Georgian legume crop extracts (GLCE). Before and after the use of both types of tincture, the data were taken for calculation of Schiller Pisarev's test (SPT), Papillary-Marginal Alveolar (PMA) index, and the oral hygiene index (OHI). Saliva was collected in a glass tube without stimulation, on an empty stomach. The content of cytokines IL-1β, IL-10 in saliva was determined by the ELISA kit.Results: The study demonstrated significant positive clinical efficacy of the mouthwash tincture prepared from the GLCE which increases the resistance of dental tissue. This was revealed by significantly lower values of OHI, PMA index, SPT and increased content of IL-10 in saliva.This data indicates that tincture prepared from the Georgian legume crop extracts, which is designed to increase the stability of oral tissue, does promote an increase in resistance to the aggressive mechanical pressing.Conclusion: Tincture from the GLCE is characterized by a much stronger anti-inflammatory effect than standard tincture "Octenidol" (Schulke and Mayr -Germany) used against inflammation of the oral cavity soft tissue. This allows us to recommend the tincture from the GLCE for the treatment and prevention of inflammatory processes in the oral cavity soft tissue.Keywords: Georgian legumes crop extracts (GLCE), oral cavity soft tissue inflammation, Hygiene Index, PMA index, Schiller Pisarev's test.

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