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All Journal Journal of Dentomaxillofacial Science MDJ (Makassar Dental Journal)
Noor Hikmah
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Dentistry

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Enamel remineralization after extracoronal bleaching using nano-hydroxyapatite (nha) from synthesis results of blood clam (anadara granosa) shells Noor Hikmah; Juni J. Nugroho; Nurhayaty Natsir; Christine A. Rovani; Latieif Mooduto
Journal of Dentomaxillofacial Science Vol. 4 No. 1 (2019): (Available online: 1 April 2019)
Publisher : DiscoverSys Inc.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (734.91 KB) | DOI: 10.15562/jdmfs.v4i1.691

Abstract

Objective: Nano-hydroxyapatite (nHA) is considered effective in stimulating the occurrence of enamel remineralization after application of bleaching materials. Nano-hydroxyapatite (nHA) can be synthesized from the shell of the blood clam (Anadara granosa) and the substances contained can be measured using X-ray diffraction (XRD).Material and Methods: The samples used in this study were 6 premolars of one upper jaw prepared by buccal and palatal crown with size of 5×5×2 mm (12 enamel disc), soaked in saline solution then divided into 2 treatment groups. Initial calcium percentage examinations were performed on each sample before bleaching material application. Next, bleaching material was applied to the sample according to the manufacturer's instructions and calcium level in each treatment group was re-examined. Application of CPP-ACP paste and nHA synthesis of blood clam (anadara granosa) shells was performed after bleaching with an hour application time per day for 7 consecutive days, and re-examined afterwards. The calcium percentage examination is performed using Energy Dispersive X-Ray Spectroscopy (EDS) tools. Data are collected and examined.Results: Data were collected and analyzed using independent t test. The results indicate that remineralization with nHA from synthesis results of blood clam shells increased the calcium levels of samples that had been extracoronally bleached, but statistically there was no significant difference with the value of p = 0.345 (p> 0.05)Conclusion: The nano-hydroxyapatite (nHA) application of blood clam shells (Anadara granosa) synthesis results can increase the percentage of calcium after the application of extracoronal bleaching materials.
Advanced management of separated root canal instruments in mandibular molars: bypass technique combined with diode laser irrigation: Penanganan lanjut dari instrumen saluran akar yang patah pada gigi molar rahang bawah: teknik bypass dikombinasikan dengan irigasi laser diode Noor Hikmah; Dian Bunga Lestari
Makassar Dental Journal Vol. 14 No. 3 (2025): Volume 14 Issue 3 December 2025
Publisher : Makassar Dental Journal PDGI Makassar

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Abstract

Teknik bypass memungkinkan pembersihan dan pembentukan saluran akar yang optimal di sekitar alat yang patah, sehingga meningkatkan peluang keberhasilan pengobatan. Seorang perempuan berusia 25 tahun datang ke RSGMP Unhas dengan keluhan benjolan pada gusi posterior kanan bawah dan telah menjalani perawatan saluran akar tetapi belum selesai. Pemeriksaan intraoral gigi 46 menunjukkan tes vitalitas (-), perkusi (-), dan palpasi (-) dengan fistula diameter 3 mm di sisi lingual. Pemeriksaan radiografi alat yang patah disertai pelebaran ligamen periodontal pada ⅓ apikal saluran akar mesial. Diagnosis awal adalah terapi yang belum selesai disertai abses apikal kronis. Pasien dijadwalkan untuk perawatan endodontik menggunakan teknik bypass. Persiapan saluran akar menggunakan teknik bypass dengan K-files nomor 8 hingga 20, dilanjutkan dengan persiapan menggunakan Protaper Gold F4 dan desinfeksi dengan NaOCl 5,25%, serta aktivasi menggunakan laser diode selama 20 detik dalam 3 siklus. Ca(OH)2 ditempatkan sebagai obat saluran akar selama dua minggu. Obturasi dilakukan menggunakan teknik kondensasi hidraulik dengan sealer biokeramik. Pasien tidak menunjukkan gejala dan terjadi perbaikan yang stabil. Pemantauan selama 3 bulan masih berlangsung. Disimpulkan bahwa penerapan teknik bypass yang cermat, didukung oleh laser diode, memberikan metode yang andal dan efektif untuk mengatasi tantangan alat endodontik yang patah.
Co-Authors Christine A. Rovani Dian Bunga Lestari Juni J. Nugroho Latieif Mooduto Nurhayaty Natsir