Sri Suparwitri
Universitas Gadjah Mada

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Reciprocal force generated by two sliding jigs: An alternative mechanic for molar protraction Fazlur RNA. Fashih; Alma Kasita; Soekarsono Hardjono; Sri Suparwitri
Journal of Dentomaxillofacial Science Vol. 6 No. 3 (2021): (Available online: 1 December 2021)
Publisher : DiscoverSys Inc.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15562/jdmfs.v0i0.984

Abstract

Objective: When a first molar is lost, orthodontic replacement with second and third molars would be an excellent treatment option. There are some side effects that tend to occur during molar protraction, such as mesial tipping of molar that could increase the time required to correct. These side effects can be avoided by understanding the biomechanical variables affecting molar protraction. The author tries to present the modification of sliding jigs, instead of the power arm function, with additional of lingual force, for molar protraction.Methods: This case report describes the management of a 23-years-old woman who was missing left mandibular first molar, had class III skeletal profile, and anterior crossbite. After anterior crossbite correction, the left mandibular first molar extraction spaces were closed by protraction of the second and third molars. Mesial tipping was detected in the early protraction phase when using conventional method. Consequently, uprighting procedure was done and protraction was continued using reciprocal force generated by two sliding jigs and lingual buttons to achieve bodily movement of tooth.Results: The result was excellent, the space was closed without tipping and rotation.Conclusion: The presented article provides an alternative mechanic for molar protraction using sliding jigs and how it can be designed to achieve predictable result.
Does mouthwash degrade the force of orthodontic latex elastics? Ananto Ali Alhasyimi; Sri Suparwitri; Niswati Fathmah Rosyida
International Journal of Public Health Science (IJPHS) Vol 11, No 4: December 2022
Publisher : Intelektual Pustaka Media Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijphs.v11i4.21923

Abstract

With the surge of COVID-19 pandemic, orthodontists have recommended the use of mouthwashes. However, this product often includes substances that change the pH of the oral environment and potentially alter orthodontic elastic force. This study aimed to investigate the effect of several mouthwashes on the force decay of latex elastics. A total of 100 orthodontic latex elastics (1/4”) were separated into five groups: control, zinc sulfate 0.2%, chlorhexidine 0.2%, sodium fluoride 0.2%, and povidone–iodine 1%. The samples were all stretched to 19.05 mm, stored in artificial saliva solutions, and housed in an incubator. Every 12 hours, the specimens from groups 2–5 were immersed in the test mouthwashes for 60 seconds and immediately returned to the artificial saliva. A tension gauge with five times that of the activation was used to measure force. Elastic force was tested at five-time intervals: baseline, 1, 6, 12 and 24 hours. Statistical analysis was conducted using two-way ANOVA and Tukey post hoc test. Results showed statistical differences for the time intervals and force degradation of orthodontic latex elastics (P<0.05). The majority of force loss occurred within 6 hours of extension and immersion. Mouthwashes had no influence on the reduction in elastic force (P>0.05). The force degradation of orthodontic latex elastics was unaffected by mouthwashes. The lowest force degradation was generated by povidone–iodine, followed by zinc sulfate, sodium fluoride, and chlorhexidine.
Desensitizing agents' post-bleaching effect on orthodontic bracket bond strength Pamungkas, Gufa Bagus; Karunia, Dyah; Suparwitri, Sri
Dental Journal (Majalah Kedokteran Gigi) Vol. 57 No. 1 (2024): March
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v57.i1.p45-49

Abstract

Background: Nowadays, many patients wanting to bleach and do orthodontic treatment simultaneously, in-office bleaching is more favorable because of the instant results. However, in-office bleaching procedures result in severe enamel surface demineralization and decreasing the attachment of the orthodontic bracket. Applying a desensitizing agent after in-office bleaching can remineralize the enamel surface. There are two types of desensitizing agents: Fluoride-based and non-fluoride-based. Purpose: This study aims to analyze the effect of applying fluoride-based and non-fluoride-based desensitizing agents after in-office bleaching on orthodontic brackets. Methods: Twenty-seven post-extraction upper premolars were divided into three groups (n=9): Control group, fluoride-based group, and non-fluoride-based group. The samples were subjected to an in-office bleaching procedure before a fluoride desensitizing agent was applied to the fluoride group and a non-fluoride desensitizing agent was applied to the non-fluoride group. Then, a brackets bonding procedure was performed on all samples. The samples were tested for shear bond strength (SBS), and the adhesive remnant index (ARI) was measured. The data was analyzed by a one-way analysis of variance on the SBS test, while the ARI scores were analyzed by the Kruskal–Wallis test. Results: The fluoride and non-fluoride groups showed a significantly increased SBS of the brackets after in-office bleaching (P < 0.05), with the fluoride-based desensitizing agent having the highest SBS score, while the ARI scores had an insignificant difference between all groups (P > 0.05). Conclusion: The application of desensitizing agents after in-office bleaching increased the metal brackets' SBS but could not change the ARI scores.