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All Journal Majalah Kedokteran Gigi Indonesia
Tunjung Nugraheni
Department of Conservative Dentistry, Faculty of Dentistry, Universitas Gadjah Mada, Yogyakarta, Indonesia
Dentistry

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Apexification using mineral trioxide aggregate and intracanal post in non-vital upper left lateral incisor Wisna Darmastuti; Naresworo Apsari; Wignyo Hadriyanto; Tunjung Nugraheni
Majalah Kedokteran Gigi Indonesia Vol 12, No 1 (2026): April
Publisher : Faculty of Dentistry, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/majkedgiind.91426

Abstract

Trauma to young permanent dentitions often occurs. The prevalence of incisor maxillae is quite high. This causes pulp necrosis, which results in dental pulp roots that are not completely formed and apical closure stops. As a result, apex is wide and open. The opening of apex caused by trauma can be coped with apexification. This procedure as first treatment is used for the formation of apical barrier, which can close the apex, before applying gutta-percha. This case report seeks to show the achievement of apex closure in one visit treatment using mineral trioxide aggregate (MTA) in incisor lateral non vital maxillae caused by dental trauma. A 16-year-old male patient admitted to falling from a motorcycle accident 2 months prior. His incisor lateral maxillae left ¾ of its crown, while the orthodontic appliance remained fixed on his teeth. A clinical examination of non-vital teeth used the fracture Ellis IV class with open apex, confirmed with periapical radiograph and CBCT. Apexification in one visit treatment with MTA was performed before a root canal treatment. In the following visit, gutta-percha was cut and fiber post installed, followed by direct resin composite restoration using mock up technique. In conclusion, apexification in one visit treatment using MTA can accelerate treatment with formation of calcium barrier to allow obturation using gutta-percha. This is followed by intracanal retention after treatment to prevent fracture and direct final restoration.
The effect of sodium ascorbate application and intracoronal bleaching on the shear bond strength of composite resin Rama Insan Kusuma Wijaya; Tunjung Nugraheni; Tri Endra Untara
Majalah Kedokteran Gigi Indonesia Vol 11, No 3 (2025): December
Publisher : Faculty of Dentistry, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/majkedgiind.107996

Abstract

An increase in the frequency of 35% hydrogen peroxide (HP) application during intracoronal bleaching leads to a higher accumulation of free radical residues, which can negatively affect the bonding of composite resin. The removal of these free radicals can be facilitated by the application of 35% sodium ascorbate (SA) combined with 0.4% surfactant. An additional frequency of SA application is required to counteract the increased free radical residues. This study aimed to evaluate the effect of the frequency of 35% SA combined with 0.4% surfactant and different intracoronal bleaching frequencies on the shear bond strength of composite resin. Forty-eight premolar teeth were divided into two main groups of 24 specimens each. Group I received two applications of 0.01 mL HP 35%, while Group II received three applications. After each bleaching session, the specimens were stored in a closed tube for five days per session, then washed and dried. Each group was further divided into three subgroups. Subgroup A was left untreated for seven days; Subgroup B received two applications of 35% sodium ascorbate combined with 0.4% surfactant; and Subgroup C received three applications. All specimens were restored with composite resin and immersed in pH 7 artificial saliva in an incubator for seven days. Shear bond strength was tested using a Universal Testing Machine at a crosshead speed of 0.5 mm/min. Two-way ANOVA revealed a significant effect of sodium ascorbate application frequency and different intracoronal bleaching frequencies on composite resin shear bond strength (p < 0.01). The results indicate that the shear bond strength of composite resin subjected to three applications of 35% sodium ascorbate combined with 0.4% surfactant is statistically comparable to those obtained with two applications of the same formulation.
Co-Authors Naresworo Apsari Rama Insan Kusuma Wijaya Tri Endra Untara Wignyo Hadriyanto Wisna Darmastuti