scholarly journals Uji pelepasan ion nikel dan kromium pada beberapa braket stainless steel yang direndam di air laut

e-GIGI ◽  
2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Cliff G. Lombo ◽  
P. S. Anindita ◽  
Juliatri .
Keyword(s):  
Stainless Steel ◽  
Orthodontic Treatment ◽  
Soft Tissues ◽  
Sea Water ◽  
Control Group ◽  
Orthodontic Appliance ◽  
Orthodontic Bracket ◽  
Vis Spectroscopy ◽  
Main Components ◽  
Fixed Orthodontic Appliance

Abstract: Orthodontics is the branch of dentistry that studies about how to prevent, protect, and care of malocclusion involving teeth, as well as skeletal and soft tissues of dentofacial region. Fixed orthodontic appliance is one of the means used to achieve the treatment goal. The use of orthodontic bracket is one of the main components in fixed orthodontic treatment which serves to deliver the required force on the teeth. This study aimed to determine the amount of Cr and Ni ions released from the stainless steel bracket (brand A, B, and C) immersed in sea water. This was a laboratory experimental study with a pre-experimental and nonequivalent control group designs. Samples were assayed using UV-Vis spectroscopy to determine the release of the metals: nickel and chromium. The samples consisted of 4 kinds of brand bracket immersed in sea water for 48 hours at a temperature of 37ºC. The results showed that the release of nickel and chromium ions in sea water varied in each sample. In sample A, the release of nickel 0.096 ppm and of chromium 0.202 ppm. In sample B, the release of nickel 0.154 ppm and of chromium 0.027 and. In sample C, the release of nickel 0,066 ppm and of chromium 0,019 ppm. The release of chromium in each sample was higher than the release of nickel. The results showed that there was no particular pattern of the released ions. This might be due to the different composition of the stainless steel brackets depending on the terms of each manufacturer.Keywords: bracket stainless steel, nickel and chromium, UV-Vis spectroscopy, seawaterAbstrak: Ortodonsia adalah cabang dari ilmu kedokteran gigi yang mempelajari tentang cara mencegah, melindungi, dan merawat maloklusi yang melibatkan gigi geligi, skeletal, dan jaringan lunak regio dentofasial. Alat ortodontik cekat merupakan salah satu cara yang digunakan untuk mencapai tujuan perawatan ontodontik. Penggunaan braket ortodonti merupakan salah satu komponen utama dalam perawatan ortodonti cekat yang berfungsi untuk menghantarkan gaya yang diperlukan pada gigi. Penelitian ini bertujuan untuk mengetahui besarnya ion Cr dan Ni yang terlepas pada braket stainless steel merek A, B, dan C yang direndam dalam air laut. Jenis penelitian yang digunakan ialah eksperimental laboratorik dengan rancangan pra eksperimental serta desain penelitian nonequivalent control group. Sampel diuji menggunakan spektroskopi UV-Vis untuk mengetahui pelepasan logam nikel dan cromium. Sampel terdiri dari 4 macam merek braket direndam dalam air laut selama 48 jam pada suhu 37ºC. Hasil penelitian menunjukkan terdapat pelepasan logam nikel dan kromium dalam air laut yang bervariasi di tiap sampel. Sampel A memiliki pelepasan nikel 0,096 ppm dan kromium 0,202 ppm; sampel B memiliki pelepasan nikel 0,154 ppm dan kromium 0,027; sampel C memiliki pelepasan nikel 0,066 ppm dan kromium 0,019 ppm. Pelepasan kromium pada tiap sampel lebih tinggi dibandingkan dengan pelepasan nikel. Hasil penelitian tidak menunjukan pola tertentu. Hal ini dapat disebabkan karena komposisi yang berbeda-beda dari braket stainless steel tergantung ketentuan masing-masing pembuatnya.Kata kunci: braket stainless steel, nikel dan cromium, spektroskopi UV-Vis, air laut

scholarly journals Evaluation of a prevention programme efficiency for patients with fixed orthodontic appliances

2011 ◽  
Vol 68 (3) ◽  
pp. 214-219 ◽  
Author(s):  
Sava Matic ◽  
Mirjana Ivanovic ◽  
Predrag Nikolic
Keyword(s):  
Oral Hygiene ◽  
Orthodontic Treatment ◽  
Control Group ◽  
Orthodontic Appliances ◽  
Orthodontic Appliance ◽  
Fixed Orthodontic Appliances ◽  
The Difference ◽  
School Of Dentistry ◽  
Fixed Orthodontic Appliance ◽  
Experimental Group

Background/Aim. Orthodontic treatment enables the establishment of functional occlusion and improvement of oral health, however, it increases the risk of periodontal disease development. The aim of this paper was to examine the efficiency of the applied programme for the prevention of gingivitis in children undergoing the fixed orthodontic appliance therapy and to determine the most efficient devices and techniques for maintaining oral hygiene during orthodontic treatment. Methods. The study included 80 patients of both genders - 60 patients comprised the experimental group and 20 patients comprised the control group. All of them were patients of the Clinic for Orthodontics at the School of Dentistry in Belgrade, aged between 13 and 18. The Silness-L?e Plaque Index (PI) was utilised for the assessment of oral hygiene quality and Silness-L?e Gingival Index (GI) and M?hlemann Papilla Bleeding Index (PBI) were utilised for the assessment of gingival state. Checkups were conducted as a single-blind study at the beginning and after the first, the third and the sixth month of the preventive and prophylactic programme. Results. During the observed period, a statistically significant change in PI, GI and PBI values was noticed (p < 0.005), as well as the difference in the dynamics of value changes during the periods between the observed groups. Conclusion. The preventive programme, applied to children undergoing the fixed orthodontic appliance therapy, had a positive effect both on oral hygiene quality and gingival state. The values of the examined parameters of the patients from the experimental group were significantly lower in comparison with those of the patients from the control group. The most efficient combination of devices for oral hygiene during orthodontic treatment was: a Curaprox CP5460 toothbrush, CD Ortho 60 orthodontic toothbrush and Curaprox CPS 14 interdental brush.

scholarly journals The effect of two different bracket types on the salivary levels of S mutans and S sobrinus in the early phase of orthodontic treatment

2012 ◽  
Vol 83 (1) ◽  
pp. 140-145 ◽  
Author(s):  
Antonija Jurela ◽  
Dario Repic ◽  
Slavica Pejda ◽  
Hrvoje Juric ◽  
Renata Vidakovic ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Statistical Analysis ◽  
Orthodontic Treatment ◽  
Orthodontic Appliance ◽  
Chi Square ◽  
Whole Saliva ◽  
Chi Square Test ◽  
The Difference ◽  
Plastic Brackets ◽  
Fixed Orthodontic Appliance

AbstractObjective:To determine the difference in the levels of Streptococcus mutans and S sobrinus in stimulated saliva in orthodontic patients with different bracket types (stainless steel and esthetic brackets) using polymerase chain reaction and cultivation method.Materials and Methods:Thirty-two patients, aged 13 to 30 years, were selected following these criteria: 1) orthodontic treatment indication, 2) systemic health, and 3) no tobacco and antibiotic consummation for three months prior to the commencement of the study. Patients were divided into two groups according to the bracket type; 16 patients formed the conventional bracket group (stainless steel brackets), and 16 patients formed the esthetic bracket group (plastic brackets). The levels of S mutans and S sobrinus in stimulated whole saliva samples were collected prior to fixed orthodontic appliance placement (T1) and 12 weeks after placement (T2), as were the Decayed, Missing, and Filled Surface Index (DMFS) and Oral Hygiene Index-Simplified (OHI-S). Mann-Whitney, Wilcoxon, and chi-square tests were used for statistical analysis.Results:Statistical analysis (chi-square test) showed no difference in S mutans and S sobrinus counts among patients with different brackets at either T1 or T2. There was no difference in total bacteria counts after fixed orthodontic appliance placement.Conclusion:The number of colony-forming units of S mutans and S sobrinus in stimulated saliva samples does not seem to be significantly different between patients with stainless steel brackets and patients with plastic brackets.

scholarly journals Effect of fixed-appliance orthodontic treatment on DMFT-index

2021 ◽  
Vol 66 (2) ◽  
pp. 81-86
Author(s):  
Efka Zabokova-Bilbilova ◽  
Emilija Sefanovska ◽  
Aneta Mijoska ◽  
Olga Kokoceva-Ivanovska
Keyword(s):  
Oral Hygiene ◽  
Orthodontic Treatment ◽  
Oral Health Status ◽  
Control Group ◽  
Orthodontic Appliance ◽  
Fixed Appliance ◽  
Significant Difference ◽  
Dmft Index ◽  
Tooth Mousse ◽  
Fixed Orthodontic Appliance

The aim of the study was to evaluate changes in dental status during fixed orthodontic treatment. A total of 60 patients with diagnosed malocclusion were included. Subjects were divided in 3 groups (20 subjects in each group). The first group was treated with dental cream GC Tooth Mousse, and the second group with Fluorogal - solution with a low concentration of fluoride (0.05% F). Control group comprised 20 patients. All subjects received precise instructions for oral hygiene and exclusion of dietary intake before fixed orthodontic appliance was placed and during each control. In our study clinical oral health status (DMFT-index) was registered before and at the end of the orthodontic treatment. The subjects treated with dental cream GC Tooth Mousse at the end of the orthodontic treatment had increased DMFT-index 5.85 in comparison to the beginning of the treatment, where the average value of the index was 5.25 (however, the difference was not statistically significant). A statistically significant difference between medium values of the DMFT-index before and after the orthodontic treatment was detected in the control group. The results of this study show that DMFT-index increased in a group of dental patients undergoing orthodontic therapy with fixed appliances. The patients must follow good instructions, motivation, and control of oral hygiene during the treatment. Key words: carious lesions, fixed orthodontic appliance

scholarly journals Rinsing effect of 60% bay leaf (Syzygium polyanthum wight) aqueous decoction in inhibiting the accumulation of dental plaque during fixed orthodontic treatment

2017 ◽  
Vol 50 (1) ◽  
pp. 1
Author(s):  
Fitria Avriliyanti ◽  
Sri Suparwitri ◽  
Ananto Ali Alhasyimi
Keyword(s):  
Dental Plaque ◽  
Antibacterial Agent ◽  
Orthodontic Treatment ◽  
Plaque Index ◽  
Tooth Surface ◽  
Control Group ◽  
Orthodontic Appliance ◽  
Significant Difference ◽  
Before And After ◽  
Fixed Orthodontic Appliance

Background: Fixed orthodontic appliance patients have a high risk to increasing plaque accumulation in tooth surface due to the presence of fixed appliance components. Using mouthwash with antibacterial agent from herbal material can control dental plaque accumulation. Bay leaf (BL) contains active compounds such as essential oil, tannin and flavonoid that have been known as an antibacterial agent. Purpose: The purpose of this study was to determine the effect of rinsing with 60% of BL aqueous decoction to the accumulation of dental plaque in fixed orthodontic appliance patients. Method: This research was an experimental clinical research with pretest and post-test control group design conducted on 20 subjects with age ranged between 18-25 years old. All subjects were undergoing the last stage (finishing) of fixed active orthodontic treatment. The subjects were instructed to rinse with 60% of BL aqueous decoction and 0.2% chlorhexidine as a control. Wash out period that needed between rinsing with 60% of BL aqueous decoction and rinsing with 0.2% chlorhexidine was 7 days. Each mouthwash used routinely for 7 days with same duration and intensity. Plaque scoring was measured before and after each treatment using Orthodontic Plaque Index (OPI). Result: One-way Anova test showed that there was a significant difference in the plaque index before and after treatment between the group of rinsing with 60% of BL aqueous decoction and group of rinsing with chlorhexidine (p<0.05). Conclusion: Rinsing with 60% BL aqueous decoction can decrease the accumulation of dental plaque in fixed orthodontic appliance patients.

Adjunctive orthodontic management of a missing upper right central incisor in a 12-year-old male using a fixed orthodontic appliance

2021 ◽  
Vol 5 ◽  
pp. 31-34
Author(s):  
Monica Ndudi Adekoya
Keyword(s):  
Orthodontic Treatment ◽  
Self Esteem ◽  
Central Incisor ◽  
Midline Shift ◽  
Orthodontic Appliance ◽  
Vertical Relationships ◽  
Straight Wire ◽  
Fixed Orthodontic Appliance ◽  
Artificial Tooth

This article presents a successful orthodontic management of a 12-year-old male using a fixed orthodontic appliance (straight wire technique). His orthodontic treatment was hinged on creating enough space to accept an artificial tooth, correcting the horizontal and vertical relationships of the upper incisors to the lower and the midline shift. Ultimately, an esthetic smile was achieved; function and self-esteem were improved when the artificial tooth was finally fixed.

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 Orthodontic Treatment in a Class I Bimaxillary Protrusion Malocclusion: Clinical and Cephalmomeric Results

2011 ◽  
Vol 1 (1) ◽  
pp. 56-59 ◽  
Author(s):  
Jagan Nath Sharma
Keyword(s):  
Case Report ◽  
Soft Tissue ◽  
Orthodontic Treatment ◽  
Class I ◽  
Treatment Results ◽  
Orthodontic Appliance ◽  
Soft Tissue Profile ◽  
The Face ◽  
Bimaxillary Protrusion ◽  
Fixed Orthodontic Appliance

Esthetically pleasing face with harmonious soft tissue profile, stable occlusion and pleasant smile are important goals of orthodontic treatment. This case report along with the treatment results is of Class I bimaxillary protrusion malocclusion treated with fixed orthodontic appliance after extraction of all first premolars. The orthodontic treatment involving extraction of premolars brought about good esthetic changes in the face and dentition resulting into improvement in the soft tissue profile, occlusion and attainment of a more harmonious smile and dentofacial esthetics.

scholarly journals Quantitative Light-induced Fluorescence-Digital as an oral hygiene evaluation tool to assess plaque accumulation and enamel demineralization in orthodontics

2016 ◽  
Vol 86 (6) ◽  
pp. 991-997 ◽  
Author(s):  
Cara C. Miller ◽  
Girvan Burnside ◽  
Susan M. Higham ◽  
Norah L. Flannigan
Keyword(s):  
Oral Hygiene ◽  
Orthodontic Treatment ◽  
Visual Aids ◽  
Evaluation Tool ◽  
Orthodontic Appliance ◽  
Duration Of Treatment ◽  
Prospective Randomized Clinical Trial ◽  
Clinical Benefits ◽  
To Receive ◽  
Fixed Orthodontic Appliance

ABSTRACT Objective:  To assess the use of Quantitative Light-induced Fluorescence-Digital as an oral hygiene evaluation tool during orthodontic treatment. Materials and Methods:  In this prospective, randomized clinical trial, 33 patients undergoing fixed orthodontic appliance treatment were randomly allocated to receive oral hygiene reinforcement at four consecutive appointments using either white light (WL) or Quantitative Light-induced Fluorescence-Digital (QLF) images, taken with a device, as visual aids. Oral hygiene was recorded assessing the QLF images for demineralization, by fluorescence loss (ΔF), and plaque coverage (ΔR30). A debriefing questionnaire ascertained patient perspectives. Results:  There were no significant differences in demineralization (P  =  .56) or plaque accumulation (P  =  .82) between the WL and QLF groups from T0 to T4. There was no significant reduction in demineralization, ΔF, in the WL, or the QLF group from T0–T4 (P &gt; .05); however, there was a significant reduction in ΔR30 plaque scores (P &lt; .05). All the participants found being shown the images helpful, with 100% of the QLF group reflecting that it would be useful to have oral hygiene reinforcement for the full duration of treatment compared with 81% of the WL group (OR 2.3; P &lt; .05). Conclusions:  Quantitative Light-induced Fluorescence-Digital can be used to detect and monitor demineralization and plaque during orthodontics. Oral hygiene reinforcement at consecutive appointments using WL or QLF images as visual aids is effective in reducing plaque coverage. In terms of clinical benefits, QLF and WL images are of similar effectiveness; however, patients preferred the QLF images.

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 Morphometric justification of osteosynthesis using implants coated with titanium and hafnium nitrides

2016 ◽  
Vol 97 (4) ◽  
pp. 585-591
Author(s):  
D E Tsyplakov ◽  
A E Izosimova ◽  
F V Shakirova ◽  
I F Akhtyamov ◽  
E B Gatina
Keyword(s):  
Stainless Steel ◽  
Soft Tissues ◽  
Medullary Canal ◽  
Control Group ◽  
Tibial Osteotomy ◽  
Bone Fragments ◽  
Hematoxylin And Eosin ◽  
12X18h9t Steel ◽  
Incomplete Closure ◽  
Experimental Group

Aim. To perform comparative and morphological assessment of the reparative processes in the bone and the surrounding soft tissues during intramedullary osteosynthesis using stainless steel implants and titanium nitride coated stainless steel implants.Methods. 40 rabbits who underwent open tibial osteotomy followed by retrograde insertion of the implant into the medullary canal served as an experimental model. 2 mm diameter nails of 12X18H9T steel coated with titanium and hafnium nitrides were used. In the control group, similar nails without coating were used. Histological sections of bone fragments and postoperative wounds, which were taken for morphological study on the 10th, 30th, 60th and 180th day from the beginning of the experiment, were stained with hematoxylin and eosin and with picrofuchsin by Van-Gieson method.Results.The percentage of leukocyte-necrotic masses on the 10th day was 3.5±0.2% in the experimental group and 6.0±0.4% in the comparison group (pConclusion. Osteosynthesis using nails coated with titanium and hafnium nitrides contributes to reduction of the inflammatory response in the surrounding tissues, accelerates the process of reparative regeneration, providing an earlier wound epithelialization and reducing the likelihood of complications development such as incomplete closure of bone defect.

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