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All Journal Medali Jurnal : Media Dental Intelektual ODONTO Dental Journal Odonto dental journal
Grahita Aditya
Universitas Islam Sultan Agung
Dentistry Health Professions Medicine & Pharmacology Public Health

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CORRELATION OF SURFACE ROUGHNESS AND FRICTION RESISTANCE IN ORTHODONTICS Grahita Aditya; Oedijani Santoso; Lisyani Suromo; Reeza Maulana Nugraha
ODONTO : Dental Journal Vol 9, No 1 (2022): July 2022
Publisher : Faculty of Dentistry, Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/odj.9.1.153-157

Abstract

Background: The orthodontic bracket transmit significant force from orthodontic wire to the teeth. Metal ions from the bracket may undergo biodegradation due to corrosion and create micro pit on the surface which increase friction resistance. Friction resistance between the archwire and the bracket may effect tooth movement and cause loss of anchorage. This study determine the correlation between surface roughness and friction resistance in orthodontic Roth brackets.Method: Seventeen brackets were prepared from previous study and were analyzed using SEM-EDX (Phenom Pro X) to measure surface roughness. Friction resistance were measured using universal testing machine. Data were analyzed using Spearman correlation.Result: Significant correlation were found between surface roughness and friction resistance on orthodontic brackets (p<0.05). The relationship is strongly correlated and directly proportional, with a positive coefficient value of 0.587. Conclusion: The conclusion of the research showed that there was a significant correlation between surface roughness and friction resistance of orthodontic brackets.
CORRELATION OF SURFACE ROUGHNESS AND FRICTION RESISTANCE IN ORTHODONTICS Grahita Aditya; Oedijani Santoso; Lisyani Suromo; Reeza Maulana Nugraha
Odonto : Dental Journal Vol 9, No 1 (2022): July 2022
Publisher : Faculty of Dentistry, Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (284.706 KB) | DOI: 10.30659/odj.9.1.153-157

Abstract

Background: The orthodontic bracket transmit significant force from orthodontic wire to the teeth. Metal ions from the bracket may undergo biodegradation due to corrosion and create micro pit on the surface which increase friction resistance. Friction resistance between the archwire and the bracket may effect tooth movement and cause loss of anchorage. This study determine the correlation between surface roughness and friction resistance in orthodontic Roth brackets.Method: Seventeen brackets were prepared from previous study and were analyzed using SEM-EDX (Phenom Pro X) to measure surface roughness. Friction resistance were measured using universal testing machine. Data were analyzed using Spearman correlation.Result: Significant correlation were found between surface roughness and friction resistance on orthodontic brackets (p<0.05). The relationship is strongly correlated and directly proportional, with a positive coefficient value of 0.587. Conclusion: The conclusion of the research showed that there was a significant correlation between surface roughness and friction resistance of orthodontic brackets.
THE EFFECT OF CARBONATED DRINKS ON ORTHODONTIC STAINLESS STEEL TO HYPERSENSITIVITY TYPE IV Nabila Alifia Nugroho; Grahita Aditya; Tahta Danifatis Sunnah
Jurnal Medali Vol 5, No 2 (2023): Media Dental Intelektual September 2023
Publisher : Faculty of Dentistry, Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/medali.5.2.81-86

Abstract

Background: Orthodontic treatment is a treatment that aims to correct malrelation and malformations to restore masticatory function, esthetics and obtain a good arrangement of teeth to achieve proper occlusion. The bracket is a component in orthodontic treatment that functions as a force conductor. The use of a bracket with a type of stainless steel material has several advantages such as an economical price, corrosion resistance, and high strength, but the habit of consuming carbonated drinks in stainless steel bracket users can cause the release of Ni ions, which can trigger hypersensitivity reactions in some person. Information is needed regarding the relationship between the release of Ni ions on a stainless steel bracket soaked in carbonated drinks to type IV hypersensitivity reactions, especially to an increase in the number of neutrophil cells. Method: The design of this study used a post-test group design using a sample of 10 male Wistar rats which were divided into 2 groups (n = 5), namely the treatment group and the control group. Calculation of the number of neutrophils using histopathological observations with Hematoxylin-Eosin staining using an electric microscope with 400x magnification. Result: The average number of neutrophils in the treatment group was 4.14 and the control group was 1.04. Statistical tests using the Welch T-Test showed significant differences between the two groups (P
Co-Authors Lisyani Suromo Nabila Alifia Nugroho Oedijani Oedijani, Oedijani Reeza Maulana Nugraha Tahta Danifatis Sunnah