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All Journal Journal of Dentistry Indonesia Majalah Kedokteran Gigi Indonesia ODONTO Dental Journal Jurnal Kedokteran Gigi Universitas Padjadjaran Odonto dental journal
Tri Endra Untara, Tri Endra
Bagian Konservasi Gigi, Fakultas Kedokteran Gigi, Universitas Gadjah Mada, Yogyakarta, Indonesia
Dentistry Health Professions Medicine & Pharmacology

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Effect of light-curing techniques and preheated composite types as luting agents on lithium disilicate bond strength Ekatra, Wanda Septya; Untara, Tri Endra; Ratih, Diatri Nari
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.104948

Abstract

he bond strength between lithium disilicate veneers and tooth structure depends on factors such as curing technique and luting agent. Preheated composite resins have been proposed as alternative luting agents due to their favorable mechanical and polymerization properties. This study aimed to evaluate the effects of conventional, ramp, and pulse light-curing techniques on the shear bond strength of lithium disilicate when preheated microhybrid and nanohybrid composite resins were used as luting agents.  Forty-two maxillary premolars were prepared and randomly assigned to six groups (n = 7) based on the combination of luting agent and light-curing technique: IA (microhybrid–conventional), IB (microhybrid–ramp), IC (microhybrid–pulse), IIA (nanohybrid–conventional), IIB (nanohybrid–ramp), and IIC (nanohybrid–pulse). Lithium disilicate veneers were cemented accordingly, and shear bond strength was evaluated. Results from a two-way ANOVA indicated a significant effect of the type of preheated composite resin on the shear bond strength of lithium disilicate (p < 0.05), while no significant effect of light-curing technique was observed (p > 0.05). This study confirmed that preheated microhybrid composite resin produces greater shear bond strength compared to preheated nanohybrid composite resin. Light-curing technique does not significantly affect the shearbond strength of lithium disilicate.
The effect of sodium ascorbate application and intracoronal bleaching on the shear bond strength of composite resin Wijaya, Rama Insan Kusuma; Nugraheni, Tunjung; Untara, Tri Endra
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.
Hemisection of the upper right first molar with a grade-2 furcation lesion: case report Ristyawati, Agatha; Chrysandra, Yustika; Untara, Tri Endra; Nugraheni, Tunjung; Enggardipta, Raras Ajeng
Jurnal Kedokteran Gigi Universitas Padjadjaran Vol 37, No 3 (2025): Desember 2025
Publisher : Fakultas Kedokteran Gigi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/jkg.v37i3.58368

Abstract

Introduction: Hemisection is the separation procedure of multiple root teeth from the crown to the furcation and removing one damaged root with periodontium abnormalities, followed by a fixed denture treatment for retaining partially damaged posterior teeth.  This case report aims to demonstrate the clinical management of a maxillary first molar with grade-2 furcation involvement using a multidisciplinary approach consisting of endodontic treatment, surgical hemisection, and prosthodontic rehabilitation, and to highlight hemisection as a conservative tooth-preserving treatment option compared with extraction and implant therapy. Case report: A female patient, 56 years old, visited the Dental Conservation Clinic of Prof. Soedomo RSGM with discomfort in the right upper molars when chewing. Based on the dental and radiograph examination, the diagnosis was pulp necrosis with asymptomatic apical periodontitis. Beginning with root canal treatment, the damaged mesial root of tooth 16 was hemisected; triangular flap was prepared in the buccal region of the maxillary right first molar; the tooth was divided mesial-distally; mesial root was removed; socket was debrided; the flap was sutured with interrupted technique and the surgical wound was closed. A modified ridge lap pontics denture design was discussed with the Prosthodontia specialist. Conclusion: A root canal-treated abutment tooth followed by hemisection was confirmed to be a better treatment choice in this case over extraction, with the goal of retaining the tooth with the damaged root in the mouth and restoring dental function.Hemiseksi gigi molar pertama kanan atas dengan lesi furkasi derajat-2: laporan kasusPendahuluan: Hemiseksi adalah prosedur pemisahan beberapa akar gigi dari mahkota sampai ke furkasi dan pencabutan satu akar yang rusak dengan kelainan periodontal, dilanjutkan dengan perawatan fixed bridge untuk mempertahankan gigi. Laporan kasus ini bertujuan untuk menunjukkan pengelolaan klinis gigi molar pertama rahang atas dengan keterlibatan furkasi derajat 2 menggunakan pendekatan multidisiplin yang meliputi perawatan endodontik, hemiseksion bedah, dan rehabilitasi prostodontik, serta menyoroti hemiseksion sebagai opsi perawatan konservatif yang mempertahankan gigi dibandingkan dengan ekstraksi dan terapi implan. Laporan kasus: Seorang pasien wanita, 56 tahun, datang ke Klinik Konservasi Gigi RSGM Prof. Soedomo dengan keluhan rasa tidak nyaman pada gigi geraham kanan atas saat mengunyah. Diagnosis berdasarkan pemeriksaan gigi dan radiografi adalah nekrosis pulpa dengan periodontitis apikal asimptomatik. Dilakukan perawatan saluran akar, hemiseksi akar mesial gigi 16 yang mengalami kerusakan dilakukan pada kunjungan berikutnya, insisi dengan triangular flap dilakukan pada daerah bukal gigi molar pertama kanan atas, gigi diseparasi mesial dan distal, akar mesial diekstraksi, debridemen soket mesial, flap dijahit dengan teknik interrupted. Desain fixed bridge berupa modified ridge lap pontics yang telah didiskusikan dengan spesialis Prostodonsia. Kesimpulan: Perawatan saluran akar gigi penyangga yang diikuti dengan hemiseksi dipastikan menjadi pilihan perawatan yang lebih baik dalam kasus ini daripada pencabutan gigi dengan tujuan mempertahankan gigi dengan salah satu akar yang rusak di dalam mulut dan mengembalikan fungsi gigi.
Co-Authors Achmad Junaidi, Achmad Chrysandra, Yustika Damayanti, Nurul Astrina Diatri Nari Ratih Ekatra, Wanda Septya Ellen Krisanti, Ellen Enggardipta, Raras Ajeng Fuddjiantari, Dian Natalina Juni Handajani Mayasari, Rena Pribadi Santosa Ristyawati, Agatha Satria, Angga Novendra Eka Seantiga, Viera Tsanie, Maria Latifa Tunjung Nugraheni Widyastuti, Andina Wijaya, Rama Insan Kusuma Yulita Kristanti