The duration of finishing and polishing of acrylic removable orthodontic appliances in the Dental Technology Study Program at Universitas Airlangga, Surabaya, Indonesia

2021 ◽  
pp. 6527-6530
Author(s):  
Sianiwati Goenharto ◽  
Elly Rusdiana ◽  
Alif Yansyah
Keyword(s):  
Observational Study ◽  
Orthodontic Appliances ◽  
Technology Study ◽  
Study Program ◽  
Recorded Data ◽  
Removable Orthodontic Appliances ◽  
Dental Technology

Objective: This study was intended to quantify the duration of finishing and polishing of removable orthodontic appliances by Dental Technology Study Program students. Material and Methods: This descriptive observational study employed total sampling. Fifteen of 6th semester students participated in the study, each of them producing three removable orthodontic appliances with the duration of finishing and polishing being recorded. Data was analyzed descriptively. Results: The duration of the finishing and polishing of orthodontic plates by Dental Technology Study Program students varied widely from 9 to 420 minutes with a mean of 71.20 minutes, both between individual students and between the first, second and third orthodontic plates. Conclusion: It is concluded that the duration of finishing and polishing in the fabrication of an orthodontic plate by the students was between 9 and 420 minutes. The duration varied depending on the design of the appliances, the skill of the students in processing or when performing the finishing and polishing.

scholarly journals Orthodontic and pediatric dental treatment approach in patient with multiple dental anomalies

2014 ◽  
Vol 62 (2) ◽  
pp. 185-190
Author(s):  
Ricardo Alves SOUZA ◽  
Alberic Costa CARVALHO ◽  
Larissa Passos BARRETTO ◽  
Francisco Xavier Paranhos Coêlho SIMÕES
Keyword(s):  
Dental Treatment ◽  
Pediatric Dentistry ◽  
Orthodontic Appliances ◽  
Supernumerary Tooth ◽  
Oral Rehabilitation ◽  
Stomatognathic System ◽  
Functional Aspects ◽  
Psychosocial Condition ◽  
Removable Orthodontic Appliances ◽  
Tooth Removal

The purpose of this clinical case report is to discuss the approach to oral rehabilitation of a patient with severe dental alterations such as enamel hypoplasia, change in shape, supernumerary tooth, dental ankylosis, agnesia and crowing in the incisor region. All of these problems compromised not only the esthetical and functional aspects of this patient, but his social relationships as well. Thus integrated planning between Pediatric Dentistry and Orthodontics made it possible to provide the best treatment alternative to recover the patient's stomatognathic system. Esthetic restorations were performed in the anterior tooth region with the use of resin composites, in addition to the use of removable orthodontic appliances, associated with serial extractions and supernumerary tooth removal. There were significant improvements in the esthetic and functional aspects of dentition, in addition to the patient demonstrating good evolution in his psychosocial condition, as he smiled and was more communicative during each follow-up appointment, also according to his mother's reports.

scholarly journals Surface morphology changes of acrylic resins during finishing and polishing phases

2013 ◽  
Vol 18 (6) ◽  
pp. 26-30 ◽  
Author(s):  
Glaucio Serra ◽  
Liliane Siqueira de Morais ◽  
Carlos Nelson Elias
Keyword(s):  
Surface Morphology ◽  
Acrylic Resin ◽  
Surface Finishing ◽  
Control Group ◽  
Orthodontic Appliances ◽  
Test Results ◽  
Good Surface ◽  
Acrylic Resins ◽  
Polishing Procedures ◽  
Removable Orthodontic Appliances

INTRODUCTION: The finishing and polishing phases are essential to improve smoothness and shining on the surface of acrylic resins used to make removable orthodontic appliances. A good surface finishing reduces roughness, which facilitates hygiene, prevents staining and provides greater comfort to the patients. OBJECTIVE: The aim of this paper was to analyze the changes on surface morphology of acrylic resins during finishing and polishing phases. METHODS: Thirty discs (10 mm in diameter and 5 mm in length) were made with acrylic resin and randomly divided into ten groups. The control group did not receive any treatment while the other groups received gradual finishing and polishing. The last group received the entire finishing and polishing procedures. Surface morphology was qualitatively analyzed through scanning electron microscopy and quantitatively analyzed through a laser profilometer test. RESULTS: The acrylic resin surfaces without treatment showed bubbles which were not observed in the subsequent phases. Wearing out with multilaminated burs, finishing with wood sandpaper and finishing with water sandpaper resulted in surfaces with decreasing irregularities. The surfaces that were polished with pumice and with low abrasive liquids showed high superficial smoothness. CONCLUSION: Highly smooth acrylic resin surfaces can be obtained after mechanical finishing and polishing performed with multilaminated burs, wood sandpaper, water sandpaper, pumice and low abrasive liquids.

The Contemporary Use of Removable Orthodontic Appliances

Dental Update ◽  
2004 ◽  
Vol 31 (4) ◽  
pp. 215-218 ◽  
Author(s):  
Stephen Ward ◽  
M.J.F. Read
Keyword(s):  
Orthodontic Appliances ◽  
Removable Orthodontic Appliances

Gingival response to removable orthodontic appliances

1982 ◽  
Vol 81 (2) ◽  
pp. 147-149 ◽  
Author(s):  
Josef Goultschin ◽  
Yerucham Zilberman
Keyword(s):  
Orthodontic Appliances ◽  
Removable Orthodontic Appliances

scholarly journals Pengolahan Produk Inovasi Bernilai Tambah dari Kearifan Lokal berupa Wadi Ikan Patin (Pangasius sp.) dengan Penambahan Wijen pada Poklahsar Tampung Parei Kota Palangka Raya

2019 ◽  
Vol 5 (1) ◽  
pp. 72-76
Author(s):  
Petrus Senas ◽  
Evnaweri Evnaweri ◽  
Tyas Wara Sulistyaningrum
Keyword(s):  
Community Service ◽  
Value Added ◽  
Added Value ◽  
Fish Processing ◽  
Technology Study ◽  
Study Program ◽  
Fish Products ◽  
New Variant ◽  
Product Technology ◽  
Processed Products

This activity was carried out at Poklahsar Tampung Parei Jalan Tingang VIIB/Bukit Pengharapan No.2 Palangka Village, Jekan Raya Sub-District, Palangka Raya City on Tuesday, September 10, 2019. The purpose of this activity was to transfer knowledge and technology for processing value-added fish products for added value. Poklahsar Tampung Pare utilizes local wisdom so that it can produce new variant products. The open mindset of participants of the Fisheries Product Technology Study Program at Palangkaraya University to learn entrepreneurship with the skills they have to prosper their lives going forward. The activity was carried out by giving material to the Community Service Team in discussions with fish processing products entrepreneurs and demonstration of the manufacture of new products by adding sesame powder to processed products of wadi patin. Value-added processed fish products from local wisdom have advantages over other products. Besides being a product with a variety of new flavors, it can also increase consumer interest in buying to increase income and improve the welfare of the community, especially fisheries processing.

Water Sorption and Solubility of Vanillin-Incorporated Self-Curing Orthodontic Polymethylmethacrylate Resin

2021 ◽  
Vol 1020 ◽  
pp. 187-191
Author(s):  
Thongchai Poonpiriya ◽  
Pornrachanee Sawaengkit ◽  
Pornkiat Churnjitapirom ◽  
Sroisiri Thaweboon
Keyword(s):  
Water Sorption ◽  
Water Solubility ◽  
Sorption Property ◽  
Control Group ◽  
Orthodontic Appliances ◽  
Significance Level ◽  
Group Water ◽  
Removable Orthodontic Appliances ◽  
Pmma Resin

Polymethylmethacrylate (PMMA) resin is one of the most commonly used materials for fabricating the base of removable orthodontic appliances. It is known that PMMA resin can promote the adhesion of microbes due to its surface porosity and from long-term use. Vanillin-incorporated PMMA resin has been reported to have antimicrobial effects against Candida albicans. However, the influence of vanillin incorporation on the water sorption and solubility of self-curing orthodontic PMMA resin has not been studied. Objective: To determine the water sorption and solubility of self-curing orthodontic PMMA resin incorporated with different concentrations of vanillin. Materials and methods: Three groups of self-curing orthodontic PMMA resin incorporated with 0.1% and 0.5% vanillin as well as PMMA without vanillin as a control were prepared with ten specimens per group. Water sorption and solubility tests were performed according to ISO 20795-2:2013 specifications. One-way ANOVA and Tukey’s multiple comparison tests at a p<0.05 significance level were used to analyse the data. Results: All three groups met ISO standard requirements. The means of water sorption values showed insignificant differences among the three groups even though the value of the 0.5% vanillin group tended to decrease. Water solubility of the 0.1% vanillin-incorporated group was not significantly different when compared with the control group whereas that of the 0.5% vanillin-incorporated group exhibited a significant lower value when compared with both control and 0.1% vanillin-incorporated groups. This suggests that increasing concentrations of vanillin would decrease the water solubility of PMMA resin. Conclusion: The incorporation of 0.5% vanillin into self-curing orthodontic PMMA resin could significantly reduce its water solubility and showed a trend of less water sorption property. Even with different vanillin concentrations, the water sorption and water solubility properties of PMMA resin were within the ISO standards. Nevertheless, further studies are recommended to determine the amount of residual monomer present in different concentrations of vanillin-incorporated PMMA resin.

Physical Properties of Vanillin Incorporated Self-Curing Orthodontic Polymethylmethacrylate Resin

2020 ◽  
Vol 853 ◽  
pp. 46-50
Author(s):  
Thongchai Poonpiriya ◽  
Pornrachanee Sawaengkit ◽  
Sroisiri Thaweboon ◽  
Pornkiat Churnjitapirom
Keyword(s):  
Flexural Strength ◽  
Physical Properties ◽  
Flexural Modulus ◽  
Orthodontic Appliances ◽  
Surface Porosity ◽  
Significance Level ◽  
Removable Orthodontic Appliances ◽  
Pmma Resin ◽  
One Way Anova

Polymethylmethacrylate (PMMA) resin is the main polymeric material used in removable orthodontic appliances. However, it can promote the adhesion of microbes due to its surface porosity and from long-term use. While vanillin incorporated PMMA resin has been reported to have antimicrobial effects against Candida albicans, the influence of vanillin incorporation on the physical properties of self-curing orthodontic PMMA resin has not been studied. Objective: To determine the flexural strength and flexural modulus of self-curing orthodontic PMMA resin incorporated with vanillin in different concentrations. Materials and methods: Three groups of self-curing orthodontic PMMA with incorporated vanillin concentrations of 0.1%, 0.5% as well as PMMA without vanillin as a control were prepared with ten specimens per group. Flexural strength and flexural modulus were tested by a 3-point bending machine according to ISO 20795-2:2013 specifications. One-way ANOVA and Tukey’s multiple comparison tests at a p<0.05 significance level were used to analyse the data. Results: The 0.1% vanillin incorporated group met ISO standard requirements (flexural strength = 60.48 MPa, flexural modulus = 1756.60 MPa), while the 0.5% vanillin incorporated group failed to pass this standard (flexural strength = 46.94 MPa, flexural modulus = 1423.49 MPa). The means of both flexural strength and flexural modulus showed significant differences among the three groups. Increasing the concentration of vanillin would decrease the flexural strength and flexural modulus of PMMA resin. Conclusion: The incorporation of vanillin into self-curing orthodontic PMMA resin can affect its physical properties, namely flexural strength and flexural modulus. At a concentration of 0.1% vanillin incorporation, PMMA resin displayed physical properties within the ISO standards.

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